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Conserved domains on  [gi|1907198618|ref|XP_036010963|]
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piwi-like protein 4 isoform X2 [Mus musculus]

Protein Classification

argonaute/piwi family protein( domain architecture ID 10658776)

argonaute/piwi family protein containing PAZ (Piwi Argonaut and Zwille) and Piwi domains

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
Piwi-like super family cl00628
Piwi-like: PIWI domain. Domain found in proteins involved in RNA silencing. RNA silencing ...
176-455 4.84e-104

Piwi-like: PIWI domain. Domain found in proteins involved in RNA silencing. RNA silencing refers to a group of related gene-silencing mechanisms mediated by short RNA molecules, including siRNAs, miRNAs, and heterochromatin-related guide RNAs. The central component of the RNA-induced silencing complex (RISC) and related complexes is Argonaute. The PIWI domain is the C-terminal portion of Argonaute and consists of two subdomains, one of which provides the 5' anchoring of the guide RNA and the other, the catalytic site for slicing. This domain is also found in closely related proteins, including the Piwi subfamily, where it is believed to perform a crucial role in germline cells, via a similar mechanism.


The actual alignment was detected with superfamily member cd04658:

Pssm-ID: 412485 [Multi-domain]  Cd Length: 448  Bit Score: 318.44  E-value: 4.84e-104
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 176 RLMKAVAEETRLSPVGRQQQLARLVDDIQRNPVARFELETWGLHFGS-QLSLTGRVVPSEKILLQDHTCQPAFAADWSKD 254
Cdd:cd04658     1 NLMKELAEHTKLNPKERYDTIRQFIQRIQKNPSVQELLKKWGIELDSnPLKIQGRVLPPEQIIMGNVFVYANSNADWKRE 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 255 MRSCKVLSSQPLNRWLIVCCNRAEHLIEAFLSCLRRVGGSMGFNVGYPKIIKVDET-PAAFLRAIQVHGDPDVQLVMCIL 333
Cdd:cd04658    81 IRNQPLYDAVNLNNWVLIYPSRDQREAESFLQTLKQVAGPMGIQISPPKIIKVKDDrIETYIRALKDAFRSDPQLVVIIL 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 334 PSNQKNYYDSIKKYLSSDCPVPSQCVLTRTLNKQGTMLSVATKIAMQMTCKLGGELWSVEIP---LKSLMVVGIDICRDA 410
Cdd:cd04658   161 PGNKKDLYDAIKKFCCVECPVPSQVITSRTLKKKKNLRSIASKIALQINAKLGGIPWTVEIPpfiLKNTMIVGIDVYHDT 240
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*.
gi 1907198618 411 LNKNVVVVGFVASINSRITRWFSRCVLQ-RTAADIADCLKVCMTGA 455
Cdd:cd04658   241 ITKKKSVVGFVASLNKSITKWFSKYISQvRGQEEIIDSLGKSMKKA 286
PAZ smart00949
This domain is named PAZ after the proteins Piwi Argonaut and Zwille; This domain is found in ...
53-190 9.41e-64

This domain is named PAZ after the proteins Piwi Argonaut and Zwille; This domain is found in two families of proteins that are involved in post-transcriptional gene silencing. These are the Piwi family and the Dicer family, that includes the Carpel factory protein. The function of the domains is unknown but has been suggested to mediate complex formation between proteins of the Piwi and Dicer families by hetero-dimerisation. The three-dimensional structure of this domain has been solved. The PAZ domain is composed of two subdomains. One subdomain is similar to the OB fold, albeit with a different topology. The OB-fold is well known as a single-stranded nucleic acid binding fold. The second subdomain is composed of a beta-hairpin followed by an alpha-helix. The PAZ domains shows low-affinity nucleic acid binding and appears to interact with the 3' ends of single-stranded regions of RNA in the cleft between the two subdomains. PAZ can bind the characteristic two-base 3' overhangs of siRNAs, indicating that although PAZ may not be a primary nucleic acid binding site in Dicer or RISC, it may contribute to the specific and productive incorporation of siRNAs and miRNAs into the RNAi pathway.


:

Pssm-ID: 198017  Cd Length: 138  Bit Score: 203.29  E-value: 9.41e-64
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618   53 ETVLDFMTDLCLRTGMSCFTEMCHKQLVGLVVLTRYNNKTYRIDDIDWSVKPTQAFQKRDGSEVTYVDYYKQQYDITLSD 132
Cdd:smart00949   1 ETVLDFMRQLPSQGNRSNFQDRCAKDLKGLIVLTRYNNKTYRIDDIDWNLAPKSTFEKSDGSEITFVEYYKQKYNITIRD 80
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1907198618  133 LNQPVLVSLLKRKRNDNSEPQMVHLMPELCFLTGLSSQATSDFRLMKAVAEETRLSPV 190
Cdd:smart00949  81 PNQPLLVSRPKRRRNQNGKGEPVLLPPELCFITGLTDRMRKDFMLMKSIADRTRLSPL 138
 
Name Accession Description Interval E-value
Piwi_piwi-like_Euk cd04658
Piwi_piwi-like_Euk: PIWI domain, Piwi-like subfamily found in eukaryotes. This domain is found ...
176-455 4.84e-104

Piwi_piwi-like_Euk: PIWI domain, Piwi-like subfamily found in eukaryotes. This domain is found in Piwi and closely related proteins, where it is believed to perform a crucial role in germline cells, via RNA silencing. RNA silencing refers to a group of related gene-silencing mechanisms mediated by short RNA molecules, including siRNAs, miRNAs, and heterochromatin-related guide RNAs. The mechanism in Piwi is believed to be similar to that in Argonaute, the central component of the RNA-induced silencing complex (RISC). The PIWI domain is the C-terminal portion of Argonaute and consists of two subdomains, one of which provides the 5' anchoring of the guide RNA and the other, the catalytic site for slicing.


Pssm-ID: 240016 [Multi-domain]  Cd Length: 448  Bit Score: 318.44  E-value: 4.84e-104
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 176 RLMKAVAEETRLSPVGRQQQLARLVDDIQRNPVARFELETWGLHFGS-QLSLTGRVVPSEKILLQDHTCQPAFAADWSKD 254
Cdd:cd04658     1 NLMKELAEHTKLNPKERYDTIRQFIQRIQKNPSVQELLKKWGIELDSnPLKIQGRVLPPEQIIMGNVFVYANSNADWKRE 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 255 MRSCKVLSSQPLNRWLIVCCNRAEHLIEAFLSCLRRVGGSMGFNVGYPKIIKVDET-PAAFLRAIQVHGDPDVQLVMCIL 333
Cdd:cd04658    81 IRNQPLYDAVNLNNWVLIYPSRDQREAESFLQTLKQVAGPMGIQISPPKIIKVKDDrIETYIRALKDAFRSDPQLVVIIL 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 334 PSNQKNYYDSIKKYLSSDCPVPSQCVLTRTLNKQGTMLSVATKIAMQMTCKLGGELWSVEIP---LKSLMVVGIDICRDA 410
Cdd:cd04658   161 PGNKKDLYDAIKKFCCVECPVPSQVITSRTLKKKKNLRSIASKIALQINAKLGGIPWTVEIPpfiLKNTMIVGIDVYHDT 240
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*.
gi 1907198618 411 LNKNVVVVGFVASINSRITRWFSRCVLQ-RTAADIADCLKVCMTGA 455
Cdd:cd04658   241 ITKKKSVVGFVASLNKSITKWFSKYISQvRGQEEIIDSLGKSMKKA 286
PAZ smart00949
This domain is named PAZ after the proteins Piwi Argonaut and Zwille; This domain is found in ...
53-190 9.41e-64

This domain is named PAZ after the proteins Piwi Argonaut and Zwille; This domain is found in two families of proteins that are involved in post-transcriptional gene silencing. These are the Piwi family and the Dicer family, that includes the Carpel factory protein. The function of the domains is unknown but has been suggested to mediate complex formation between proteins of the Piwi and Dicer families by hetero-dimerisation. The three-dimensional structure of this domain has been solved. The PAZ domain is composed of two subdomains. One subdomain is similar to the OB fold, albeit with a different topology. The OB-fold is well known as a single-stranded nucleic acid binding fold. The second subdomain is composed of a beta-hairpin followed by an alpha-helix. The PAZ domains shows low-affinity nucleic acid binding and appears to interact with the 3' ends of single-stranded regions of RNA in the cleft between the two subdomains. PAZ can bind the characteristic two-base 3' overhangs of siRNAs, indicating that although PAZ may not be a primary nucleic acid binding site in Dicer or RISC, it may contribute to the specific and productive incorporation of siRNAs and miRNAs into the RNAi pathway.


Pssm-ID: 198017  Cd Length: 138  Bit Score: 203.29  E-value: 9.41e-64
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618   53 ETVLDFMTDLCLRTGMSCFTEMCHKQLVGLVVLTRYNNKTYRIDDIDWSVKPTQAFQKRDGSEVTYVDYYKQQYDITLSD 132
Cdd:smart00949   1 ETVLDFMRQLPSQGNRSNFQDRCAKDLKGLIVLTRYNNKTYRIDDIDWNLAPKSTFEKSDGSEITFVEYYKQKYNITIRD 80
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1907198618  133 LNQPVLVSLLKRKRNDNSEPQMVHLMPELCFLTGLSSQATSDFRLMKAVAEETRLSPV 190
Cdd:smart00949  81 PNQPLLVSRPKRRRNQNGKGEPVLLPPELCFITGLTDRMRKDFMLMKSIADRTRLSPL 138
PAZ_piwi_like cd02845
PAZ domain, Piwi_like subfamily. In multi-cellular organisms, the Piwi protein appears to be ...
52-168 2.13e-61

PAZ domain, Piwi_like subfamily. In multi-cellular organisms, the Piwi protein appears to be essential for the maintenance of germline stem cells. In the Drosophila male germline, Piwi was shown to be involved in the silencing of retrotransposons in the male gametes. The Piwi proteins share their domain architecture with other members of the argonaute family. The PAZ domain has been named after the proteins Piwi, Argonaut, and Zwille. PAZ is found in two families of proteins that are essential components of RNA-mediated gene-silencing pathways, including RNA interference, the Piwi and Dicer families. PAZ functions as a nucleic acid binding domain, with a strong preference for single-stranded nucleic acids (RNA or DNA) or RNA duplexes with single-stranded 3' overhangs. It has been suggested that the PAZ domain provides a unique mode for the recognition of the two 3'-terminal nucleotides in single-stranded nucleic acids and buries the 3' OH group, and that it might recognize characteristic 3' overhangs in siRNAs within RISC (RNA-induced silencing) and other complexes.


Pssm-ID: 239211  Cd Length: 117  Bit Score: 196.71  E-value: 2.13e-61
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618  52 NETVLDFMTDLCLRTGMSCFTEMCHKQLVGLVVLTRYNNKTYRIDDIDWSVKPTQAFQKRDGSEVTYVDYYKQQYDITLS 131
Cdd:cd02845     1 STTVLDRMHKLYRQETDERFREECEKELIGSIVLTRYNNKTYRIDDIDFDKTPLSTFKKSDGTEITFVEYYKKQYNIEIT 80
                          90       100       110
                  ....*....|....*....|....*....|....*..
gi 1907198618 132 DLNQPVLVSLLKRKRNDNSEPQMVHLMPELCFLTGLS 168
Cdd:cd02845    81 DLNQPLLVSRPKRRDPRGGEKEPIYLIPELCFLTGLT 117
PAZ pfam02170
PAZ domain; This domain is named PAZ after the proteins Piwi Argonaut and Zwille. This domain ...
56-188 5.24e-40

PAZ domain; This domain is named PAZ after the proteins Piwi Argonaut and Zwille. This domain is found in two families of proteins that are involved in post-transcriptional gene silencing. These are the Piwi family and the Dicer family, that includes the Carpel factory protein. The function of the domains is unknown but has been suggested to mediate complex formation between proteins of the Piwi and Dicer families by hetero-dimerization. The three-dimensional structure of this domain has been solved. The PAZ domain is composed of two subdomains. One subdomain is similar to the OB fold, albeit with a different topology. The OB-fold is well known as a single-stranded nucleic acid binding fold. The second subdomain is composed of a beta-hairpin followed by an alpha-helix. The PAZ domains shows low-affinity nucleic acid binding and appears to interact with the 3' ends of single-stranded regions of RNA in the cleft between the two subdomains. PAZ can bind the characteriztic two-base 3' overhangs of siRNAs, indicating that although PAZ may not be a primary nucleic acid binding site in Dicer or RISC, it may contribute to the specific and productive incorporation of siRNAs and miRNAs into the RNAi pathway.


Pssm-ID: 460472  Cd Length: 123  Bit Score: 140.41  E-value: 5.24e-40
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618  56 LDFMTDLCLRTGMSCFTEMCHKQLVGLVVLTRYNN-KTYRIDDIDWSVKPTQAFQKRDGSEVTYVDYYKQQYDITLSDLN 134
Cdd:pfam02170   1 LDFLKRLQQQKDRRDFRKEAKKALKGLKVYTTYNNpRTYRIDGITFDPTPESTFPLKDGKEITVVDYFKKKYNIDLKYPD 80
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....
gi 1907198618 135 QPVLVSLLKRKRNdnsepqmvHLMPELCFLTglSSQaTSDFRLMKAVAEETRLS 188
Cdd:pfam02170  81 QPLLLVGKKRPKV--------YLPPELCNLV--DGQ-RYTKKLMPSIAQRTRLL 123
Piwi smart00950
This domain is found in the protein Piwi and its relatives; The function of this domain is the ...
328-455 1.91e-34

This domain is found in the protein Piwi and its relatives; The function of this domain is the dsRNA guided hydrolysis of ssRNA. Determination of the crystal structure of Argonaute reveals that PIWI is an RNase H domain, and identifies Argonaute as Slicer, the enzyme that cleaves mRNA in the RNAi RISC complex.. In addition, Mg+2 dependence and production of 3'-OH and 5' phosphate products are shared characteristics of RNaseH and RISC. The PIWI domain core has a tertiary structure belonging to the RNase H family of enzymes. RNase H fold proteins all have a five-stranded mixed beta-sheet surrounded by helices. By analogy to RNase H enzymes which cleave single-stranded RNA guided by the DNA strand in an RNA/DNA hybrid, the PIWI domain can be inferred to cleave single-stranded RNA, for example mRNA, guided by double stranded siRNA.


Pssm-ID: 214930  Cd Length: 301  Bit Score: 131.30  E-value: 1.91e-34
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618  328 LVMCILPSNQK-NYYDSIKKYLSSDCPVPSQCVLTRTLNK---QGTMLSVATKIAMQMTCKLGGELWSVE---IPLKSLM 400
Cdd:smart00950   1 LIVVILPGEKKtDLYHEIKKYLETKLGVPTQCVQAKTLDKvskRRKLKQYLTNVALKINAKLGGINWVLDvppIPLKPTL 80
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1907198618  401 VVGIDICRDALNKNVVVVGFVASINSrITRWFSRCVLQ-RTAADIADCLKVCMTGA 455
Cdd:smart00950  81 IIGIDVSHPSAGKGGSVAPSVAAFVA-SGNYLSGNFYQaFVREQGSRQLKEILREA 135
Piwi pfam02171
Piwi domain; This domain is found in the protein Piwi and its relatives. The function of this ...
328-452 2.73e-26

Piwi domain; This domain is found in the protein Piwi and its relatives. The function of this domain is the dsRNA guided hydrolysis of ssRNA. Determination of the crystal structure of Argonaute reveals that PIWI is an RNase H domain, and identifies Argonaute as Slicer, the enzyme that cleaves mRNA in the RNAi RISC complex. In addition, Mg+2 dependence and production of 3'-OH and 5' phosphate products are shared characteriztics of RNaseH and RISC. The PIWI domain core has a tertiary structure belonging to the RNase H family of enzymes. RNase H fold proteins all have a five-stranded mixed beta-sheet surrounded by helices. By analogy to RNase H enzymes which cleave single-stranded RNA guided by the DNA strand in an RNA/DNA hybrid, the PIWI domain can be inferred to cleave single-stranded RNA, for example mRNA, guided by double stranded siRNA.


Pssm-ID: 396649  Cd Length: 296  Bit Score: 108.19  E-value: 2.73e-26
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 328 LVMCILPSNQKNYYDSIKKYLSSDCPVPSQCVLTRTLNKQGTMlSVATKIAMQMTCKLGGE-LWSVEIPLKSLMVVGIDI 406
Cdd:pfam02171   1 LILVILPEKNKDLYHSIKKYLETDLGIPSQCILSKTILKRTLK-QTLTNVLLKINVKLGGInYWIVEIKPKVDVIIGFDI 79
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*...
gi 1907198618 407 CRDALN--KNVVVVGFVASINSRITRWFSRCVLQRTAADIADCLKVCM 452
Cdd:pfam02171  80 SHGTAGtdDNPSVAAVVASFDKGNSRYFGTVRTQASGQELLEPLKDII 127
 
Name Accession Description Interval E-value
Piwi_piwi-like_Euk cd04658
Piwi_piwi-like_Euk: PIWI domain, Piwi-like subfamily found in eukaryotes. This domain is found ...
176-455 4.84e-104

Piwi_piwi-like_Euk: PIWI domain, Piwi-like subfamily found in eukaryotes. This domain is found in Piwi and closely related proteins, where it is believed to perform a crucial role in germline cells, via RNA silencing. RNA silencing refers to a group of related gene-silencing mechanisms mediated by short RNA molecules, including siRNAs, miRNAs, and heterochromatin-related guide RNAs. The mechanism in Piwi is believed to be similar to that in Argonaute, the central component of the RNA-induced silencing complex (RISC). The PIWI domain is the C-terminal portion of Argonaute and consists of two subdomains, one of which provides the 5' anchoring of the guide RNA and the other, the catalytic site for slicing.


Pssm-ID: 240016 [Multi-domain]  Cd Length: 448  Bit Score: 318.44  E-value: 4.84e-104
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 176 RLMKAVAEETRLSPVGRQQQLARLVDDIQRNPVARFELETWGLHFGS-QLSLTGRVVPSEKILLQDHTCQPAFAADWSKD 254
Cdd:cd04658     1 NLMKELAEHTKLNPKERYDTIRQFIQRIQKNPSVQELLKKWGIELDSnPLKIQGRVLPPEQIIMGNVFVYANSNADWKRE 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 255 MRSCKVLSSQPLNRWLIVCCNRAEHLIEAFLSCLRRVGGSMGFNVGYPKIIKVDET-PAAFLRAIQVHGDPDVQLVMCIL 333
Cdd:cd04658    81 IRNQPLYDAVNLNNWVLIYPSRDQREAESFLQTLKQVAGPMGIQISPPKIIKVKDDrIETYIRALKDAFRSDPQLVVIIL 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 334 PSNQKNYYDSIKKYLSSDCPVPSQCVLTRTLNKQGTMLSVATKIAMQMTCKLGGELWSVEIP---LKSLMVVGIDICRDA 410
Cdd:cd04658   161 PGNKKDLYDAIKKFCCVECPVPSQVITSRTLKKKKNLRSIASKIALQINAKLGGIPWTVEIPpfiLKNTMIVGIDVYHDT 240
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*.
gi 1907198618 411 LNKNVVVVGFVASINSRITRWFSRCVLQ-RTAADIADCLKVCMTGA 455
Cdd:cd04658   241 ITKKKSVVGFVASLNKSITKWFSKYISQvRGQEEIIDSLGKSMKKA 286
PAZ smart00949
This domain is named PAZ after the proteins Piwi Argonaut and Zwille; This domain is found in ...
53-190 9.41e-64

This domain is named PAZ after the proteins Piwi Argonaut and Zwille; This domain is found in two families of proteins that are involved in post-transcriptional gene silencing. These are the Piwi family and the Dicer family, that includes the Carpel factory protein. The function of the domains is unknown but has been suggested to mediate complex formation between proteins of the Piwi and Dicer families by hetero-dimerisation. The three-dimensional structure of this domain has been solved. The PAZ domain is composed of two subdomains. One subdomain is similar to the OB fold, albeit with a different topology. The OB-fold is well known as a single-stranded nucleic acid binding fold. The second subdomain is composed of a beta-hairpin followed by an alpha-helix. The PAZ domains shows low-affinity nucleic acid binding and appears to interact with the 3' ends of single-stranded regions of RNA in the cleft between the two subdomains. PAZ can bind the characteristic two-base 3' overhangs of siRNAs, indicating that although PAZ may not be a primary nucleic acid binding site in Dicer or RISC, it may contribute to the specific and productive incorporation of siRNAs and miRNAs into the RNAi pathway.


Pssm-ID: 198017  Cd Length: 138  Bit Score: 203.29  E-value: 9.41e-64
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618   53 ETVLDFMTDLCLRTGMSCFTEMCHKQLVGLVVLTRYNNKTYRIDDIDWSVKPTQAFQKRDGSEVTYVDYYKQQYDITLSD 132
Cdd:smart00949   1 ETVLDFMRQLPSQGNRSNFQDRCAKDLKGLIVLTRYNNKTYRIDDIDWNLAPKSTFEKSDGSEITFVEYYKQKYNITIRD 80
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1907198618  133 LNQPVLVSLLKRKRNDNSEPQMVHLMPELCFLTGLSSQATSDFRLMKAVAEETRLSPV 190
Cdd:smart00949  81 PNQPLLVSRPKRRRNQNGKGEPVLLPPELCFITGLTDRMRKDFMLMKSIADRTRLSPL 138
PAZ_piwi_like cd02845
PAZ domain, Piwi_like subfamily. In multi-cellular organisms, the Piwi protein appears to be ...
52-168 2.13e-61

PAZ domain, Piwi_like subfamily. In multi-cellular organisms, the Piwi protein appears to be essential for the maintenance of germline stem cells. In the Drosophila male germline, Piwi was shown to be involved in the silencing of retrotransposons in the male gametes. The Piwi proteins share their domain architecture with other members of the argonaute family. The PAZ domain has been named after the proteins Piwi, Argonaut, and Zwille. PAZ is found in two families of proteins that are essential components of RNA-mediated gene-silencing pathways, including RNA interference, the Piwi and Dicer families. PAZ functions as a nucleic acid binding domain, with a strong preference for single-stranded nucleic acids (RNA or DNA) or RNA duplexes with single-stranded 3' overhangs. It has been suggested that the PAZ domain provides a unique mode for the recognition of the two 3'-terminal nucleotides in single-stranded nucleic acids and buries the 3' OH group, and that it might recognize characteristic 3' overhangs in siRNAs within RISC (RNA-induced silencing) and other complexes.


Pssm-ID: 239211  Cd Length: 117  Bit Score: 196.71  E-value: 2.13e-61
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618  52 NETVLDFMTDLCLRTGMSCFTEMCHKQLVGLVVLTRYNNKTYRIDDIDWSVKPTQAFQKRDGSEVTYVDYYKQQYDITLS 131
Cdd:cd02845     1 STTVLDRMHKLYRQETDERFREECEKELIGSIVLTRYNNKTYRIDDIDFDKTPLSTFKKSDGTEITFVEYYKKQYNIEIT 80
                          90       100       110
                  ....*....|....*....|....*....|....*..
gi 1907198618 132 DLNQPVLVSLLKRKRNDNSEPQMVHLMPELCFLTGLS 168
Cdd:cd02845    81 DLNQPLLVSRPKRRDPRGGEKEPIYLIPELCFLTGLT 117
PAZ pfam02170
PAZ domain; This domain is named PAZ after the proteins Piwi Argonaut and Zwille. This domain ...
56-188 5.24e-40

PAZ domain; This domain is named PAZ after the proteins Piwi Argonaut and Zwille. This domain is found in two families of proteins that are involved in post-transcriptional gene silencing. These are the Piwi family and the Dicer family, that includes the Carpel factory protein. The function of the domains is unknown but has been suggested to mediate complex formation between proteins of the Piwi and Dicer families by hetero-dimerization. The three-dimensional structure of this domain has been solved. The PAZ domain is composed of two subdomains. One subdomain is similar to the OB fold, albeit with a different topology. The OB-fold is well known as a single-stranded nucleic acid binding fold. The second subdomain is composed of a beta-hairpin followed by an alpha-helix. The PAZ domains shows low-affinity nucleic acid binding and appears to interact with the 3' ends of single-stranded regions of RNA in the cleft between the two subdomains. PAZ can bind the characteriztic two-base 3' overhangs of siRNAs, indicating that although PAZ may not be a primary nucleic acid binding site in Dicer or RISC, it may contribute to the specific and productive incorporation of siRNAs and miRNAs into the RNAi pathway.


Pssm-ID: 460472  Cd Length: 123  Bit Score: 140.41  E-value: 5.24e-40
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618  56 LDFMTDLCLRTGMSCFTEMCHKQLVGLVVLTRYNN-KTYRIDDIDWSVKPTQAFQKRDGSEVTYVDYYKQQYDITLSDLN 134
Cdd:pfam02170   1 LDFLKRLQQQKDRRDFRKEAKKALKGLKVYTTYNNpRTYRIDGITFDPTPESTFPLKDGKEITVVDYFKKKYNIDLKYPD 80
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....
gi 1907198618 135 QPVLVSLLKRKRNdnsepqmvHLMPELCFLTglSSQaTSDFRLMKAVAEETRLS 188
Cdd:pfam02170  81 QPLLLVGKKRPKV--------YLPPELCNLV--DGQ-RYTKKLMPSIAQRTRLL 123
Piwi smart00950
This domain is found in the protein Piwi and its relatives; The function of this domain is the ...
328-455 1.91e-34

This domain is found in the protein Piwi and its relatives; The function of this domain is the dsRNA guided hydrolysis of ssRNA. Determination of the crystal structure of Argonaute reveals that PIWI is an RNase H domain, and identifies Argonaute as Slicer, the enzyme that cleaves mRNA in the RNAi RISC complex.. In addition, Mg+2 dependence and production of 3'-OH and 5' phosphate products are shared characteristics of RNaseH and RISC. The PIWI domain core has a tertiary structure belonging to the RNase H family of enzymes. RNase H fold proteins all have a five-stranded mixed beta-sheet surrounded by helices. By analogy to RNase H enzymes which cleave single-stranded RNA guided by the DNA strand in an RNA/DNA hybrid, the PIWI domain can be inferred to cleave single-stranded RNA, for example mRNA, guided by double stranded siRNA.


Pssm-ID: 214930  Cd Length: 301  Bit Score: 131.30  E-value: 1.91e-34
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618  328 LVMCILPSNQK-NYYDSIKKYLSSDCPVPSQCVLTRTLNK---QGTMLSVATKIAMQMTCKLGGELWSVE---IPLKSLM 400
Cdd:smart00950   1 LIVVILPGEKKtDLYHEIKKYLETKLGVPTQCVQAKTLDKvskRRKLKQYLTNVALKINAKLGGINWVLDvppIPLKPTL 80
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1907198618  401 VVGIDICRDALNKNVVVVGFVASINSrITRWFSRCVLQ-RTAADIADCLKVCMTGA 455
Cdd:smart00950  81 IIGIDVSHPSAGKGGSVAPSVAAFVA-SGNYLSGNFYQaFVREQGSRQLKEILREA 135
Piwi pfam02171
Piwi domain; This domain is found in the protein Piwi and its relatives. The function of this ...
328-452 2.73e-26

Piwi domain; This domain is found in the protein Piwi and its relatives. The function of this domain is the dsRNA guided hydrolysis of ssRNA. Determination of the crystal structure of Argonaute reveals that PIWI is an RNase H domain, and identifies Argonaute as Slicer, the enzyme that cleaves mRNA in the RNAi RISC complex. In addition, Mg+2 dependence and production of 3'-OH and 5' phosphate products are shared characteriztics of RNaseH and RISC. The PIWI domain core has a tertiary structure belonging to the RNase H family of enzymes. RNase H fold proteins all have a five-stranded mixed beta-sheet surrounded by helices. By analogy to RNase H enzymes which cleave single-stranded RNA guided by the DNA strand in an RNA/DNA hybrid, the PIWI domain can be inferred to cleave single-stranded RNA, for example mRNA, guided by double stranded siRNA.


Pssm-ID: 396649  Cd Length: 296  Bit Score: 108.19  E-value: 2.73e-26
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 328 LVMCILPSNQKNYYDSIKKYLSSDCPVPSQCVLTRTLNKQGTMlSVATKIAMQMTCKLGGE-LWSVEIPLKSLMVVGIDI 406
Cdd:pfam02171   1 LILVILPEKNKDLYHSIKKYLETDLGIPSQCILSKTILKRTLK-QTLTNVLLKINVKLGGInYWIVEIKPKVDVIIGFDI 79
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*...
gi 1907198618 407 CRDALN--KNVVVVGFVASINSRITRWFSRCVLQRTAADIADCLKVCM 452
Cdd:pfam02171  80 SHGTAGtdDNPSVAAVVASFDKGNSRYFGTVRTQASGQELLEPLKDII 127
Piwi-like cd02826
Piwi-like: PIWI domain. Domain found in proteins involved in RNA silencing. RNA silencing ...
223-454 9.00e-21

Piwi-like: PIWI domain. Domain found in proteins involved in RNA silencing. RNA silencing refers to a group of related gene-silencing mechanisms mediated by short RNA molecules, including siRNAs, miRNAs, and heterochromatin-related guide RNAs. The central component of the RNA-induced silencing complex (RISC) and related complexes is Argonaute. The PIWI domain is the C-terminal portion of Argonaute and consists of two subdomains, one of which provides the 5' anchoring of the guide RNA and the other, the catalytic site for slicing. This domain is also found in closely related proteins, including the Piwi subfamily, where it is believed to perform a crucial role in germline cells, via a similar mechanism.


Pssm-ID: 239208 [Multi-domain]  Cd Length: 393  Bit Score: 93.99  E-value: 9.00e-21
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 223 QLSLTGRVVPSEKILLQDhtcqpafaadwsKDMRSCK--VLSSQPLNRWLIVCCNRAE-HLIEAFLSCLRRVGGSMGFNV 299
Cdd:cd02826     2 PLILKGRVLPKPQILFKN------------KFLRNIGpfEKPAKITNPVAVIAFRNEEvDDLVKRLADACRQLGMKIKEI 69
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 300 GYPKIIKVDETPAAFLRaIQVHG--DPDVQLVMCILPSNQKNYYDSIKKYLSSDcPVPSQCVLTRTLNKQGTMLSVATKI 377
Cdd:cd02826    70 PIVSWIEDLNNSFKDLK-SVFKNaiKAGVQLVIFILKEKKPPLHDEIKRLEAKS-DIPSQVIQLKTAKKMRRLKQTLDNL 147
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 378 AMQMTCKLGGELWSVEIP---LKSLMVVGIDIC---RDALNKNVVVVGFVASINSRI---TRWFSRCVLQRTAADIADCL 448
Cdd:cd02826   148 LRKVNSKLGGINYILDSPvklFKSDIFIGFDVShpdRRTVNGGPSAVGFAANLSNHTflgGFLYVQPSREVKLQDLGEVI 227

                  ....*.
gi 1907198618 449 KVCMTG 454
Cdd:cd02826   228 KKCLDG 233
Piwi_ago-like cd04657
Piwi_ago-like: PIWI domain, Argonaute-like subfamily. Argonaute is the central component of ...
213-446 3.53e-20

Piwi_ago-like: PIWI domain, Argonaute-like subfamily. Argonaute is the central component of the RNA-induced silencing complex (RISC) and related complexes. The PIWI domain is the C-terminal portion of Argonaute and consists of two subdomains, one of which provides the 5' anchoring of the guide RNA and the other, the catalytic site for slicing.


Pssm-ID: 240015 [Multi-domain]  Cd Length: 426  Bit Score: 92.68  E-value: 3.53e-20
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 213 LETWGLHFGSQL-SLTGRVVPSEKILL--QDHTCQPaFAADWskDMRSCKVLSSQPLNRWLIVC----CNRAEHL--IEA 283
Cdd:cd04657     3 LKEFGISVSKEMiTVPGRVLPPPKLKYgdSSKTVPP-RNGSW--NLRGKKFLEGGPIRSWAVLNfagpRRSREERadLRN 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 284 FLSCLRRVGGSMGFNVGYPKIIKVDETPAAFLRAIQVHGDPdVQLVMCILPSNQKNYYDSIKKYlsSDC--PVPSQCVLT 361
Cdd:cd04657    80 FVDQLVKTVIGAGINITTAIASVEGRVEELFAKLKQAKGEG-PQLVLVILPKKDSDIYGRIKRL--ADTelGIHTQCVLA 156
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 362 RTLNKQGTMlSVATKIAMQMTCKLGG---ELWSVEIPLKSL---MVVGIDICR---DALNKNVVVVGFVASINSRITRWF 432
Cdd:cd04657   157 KKVTKKGNP-QYFANVALKINLKLGGinhSLEPDIRPLLTKeptMVLGADVTHpspGDPAGAPSIAAVVASVDWHLAQYP 235
                         250
                  ....*....|....
gi 1907198618 433 SRCVLQRTAADIAD 446
Cdd:cd04657   236 ASVRLQSHRQEIID 249
PAZ cd02825
PAZ domain, named PAZ after the proteins Piwi Argonaut and Zwille. PAZ is found in two ...
52-165 6.74e-17

PAZ domain, named PAZ after the proteins Piwi Argonaut and Zwille. PAZ is found in two families of proteins that are essential components of RNA-mediated gene-silencing pathways, including RNA interference, the piwi and Dicer families. PAZ functions as a nucleic-acid binding domain, with a strong preference for single-stranded nucleic acids (RNA or DNA) or RNA duplexes with single-stranded 3' overhangs. It has been suggested that the PAZ domain provides a unique mode for the recognition of the two 3'-terminal nucleotides in single-stranded nucleic acids and buries the 3' OH group, and that it might recognize characteristic 3' overhangs in siRNAs within RISC (RNA-induced silencing) and other complexes. This parent model also contains structures of an archaeal PAZ domain.


Pssm-ID: 239207  Cd Length: 115  Bit Score: 76.73  E-value: 6.74e-17
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618  52 NETVLDFMTDLCL-----RTGMSCFTEMCHKQLVGLVVLTRYN--NKTYRIDDIDWSVKPTQaFQKRDGSEVTYVDYYKQ 124
Cdd:cd02825     1 ADPVIETMCKFPKdreidTPLLDSPREEFTKELKGLKVEDTHNplNRVYRPDGETRLKAPSQ-LKHSDGKEITFADYFKE 79
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|.
gi 1907198618 125 QYDITLSDLNQPVLVSLLKRKRNdnsepQMVHLMPELCFLT 165
Cdd:cd02825    80 RYNLTLTDLNQPLLIVKFSSKKS-----YSILLPPELCVIT 115
PAZ_CAF_like cd02844
PAZ domain, CAF_like subfamily. CAF (for carpel factory) is a plant homolog of Dicer. CAF has ...
64-162 8.15e-12

PAZ domain, CAF_like subfamily. CAF (for carpel factory) is a plant homolog of Dicer. CAF has been implicated in flower morphogenesis and in early Arabidopsis development and might function through posttranscriptional regulation of specific mRNA molecules. PAZ domains are named after the proteins Piwi, Argonaut, and Zwille. PAZ is found in two families of proteins that are essential components of RNA-mediated gene-silencing pathways, including RNA interference, the Piwi and Dicer families. PAZ functions as a nucleic-acid binding domain, with a strong preference for single-stranded nucleic acids (RNA or DNA) or RNA duplexes with single-stranded 3' overhangs. It has been suggested that the PAZ domain provides a unique mode for the recognition of the two 3'-terminal nucleotides in single-stranded nucleic acids and buries the 3' OH group, and that it might recognize characteristic 3' overhangs in siRNAs within RISC (RNA-induced silencing) and other complexes.


Pssm-ID: 239210  Cd Length: 135  Bit Score: 62.82  E-value: 8.15e-12
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618  64 LRTGMSCFtemCHKQLVGLVVLTRYNNKTYRIDDI----DWSvkptqAFQKRDGSEV-TYVDYYKQQYDITLSDLNQPVL 138
Cdd:cd02844    19 LHLADGSF---CACDLKGSVVTAPHNGRFYVISGIldlnANS-----SFPGKEGLGYaTYAEYFKEKYGIVLNHPNQPLL 90
                          90       100       110
                  ....*....|....*....|....*....|....*....
gi 1907198618 139 V--------SLL---KRKRNDNSEPQ----MVHLMPELC 162
Cdd:cd02844    91 KgkqifnlhNLLhnrFEEKGESEEKEkdryFVELPPELC 129
Piwi_piwi-like_ProArk cd04659
Piwi_piwi-like_ProArk: PIWI domain, Piwi-like subfamily found in Archaea and Bacteria. RNA ...
274-420 2.37e-08

Piwi_piwi-like_ProArk: PIWI domain, Piwi-like subfamily found in Archaea and Bacteria. RNA silencing refers to a group of related gene-silencing mechanisms mediated by short RNA molecules, including siRNAs, miRNAs, and heterochromatin-related guide RNAs. The central component of the RNA-induced silencing complex (RISC) and related complexes is Argonaute. The PIWI domain is the C-terminal portion of Argonaute and consists of two subdomains, one of which provides the 5' anchoring of the guide RNA and the other, the catalytic site for slicing. This domain is also found in closely related proteins, including the Piwi subfamily, where it is believed to perform a crucial role in germline cells, via a similar mechanism.


Pssm-ID: 240017 [Multi-domain]  Cd Length: 404  Bit Score: 56.24  E-value: 2.37e-08
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907198618 274 CNRAEHLIEAFLSCLRRVGGSMGFNVGYPKIIKVDETPAAFLRAIQV-----HGDPDVQLVMCILPSNQK------NYYD 342
Cdd:cd04659    54 IGKLLQYLPKFPGFGGGNKNALGKNKISVFRLDLNRSAQAEAIIEAVdlalsESSQGVDVVIVVLPEDLKelpeefDLYD 133
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1907198618 343 SIKKYLSsDCPVPSQCVLTRTLNKQGTMLSVATKIAMQMTCKLGGELWSVE-IPLKSLMVVGIDICRDaLNKNVVVVGF 420
Cdd:cd04659   134 RLKAKLL-RLGIPTQFVREDTLKNRQDLAYVAWNLALALYAKLGGIPWKLDaDSDPADLYIGIGFARS-RDGEVRVTGC 210
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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