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Conserved domains on  [gi|18860057|ref|NP_573302|]
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X-ray repair cross complementing 2 [Drosophila melanogaster]

Protein Classification

P-loop NTPase family protein( domain architecture ID 1562424)

P-loop NTPase (nucleoside triphosphate hydrolase) family protein contains two conserved sequence signatures, the Walker A motif (the P-loop proper) and Walker B motif which bind, respectively, the beta and gamma phosphate moieties of the bound nucleotide (typically ATP or GTP), and a Mg(2+) cation

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
P-loop_NTPase super family cl38936
P-loop containing Nucleoside Triphosphate Hydrolases; Members of the P-loop NTPase domain ...
21-178 8.12e-20

P-loop containing Nucleoside Triphosphate Hydrolases; Members of the P-loop NTPase domain superfamily are characterized by a conserved nucleotide phosphate-binding motif, also referred to as the Walker A motif (GxxxxGK[S/T], where x is any residue), and the Walker B motif (hhhh[D/E], where h is a hydrophobic residue). The Walker A and B motifs bind the beta-gamma phosphate moiety of the bound nucleotide (typically ATP or GTP) and the Mg2+ cation, respectively. The P-loop NTPases are involved in diverse cellular functions, and they can be divided into two major structural classes: the KG (kinase-GTPase) class which includes Ras-like GTPases and its circularly permutated YlqF-like; and the ASCE (additional strand catalytic E) class which includes ATPase Binding Cassette (ABC), DExD/H-like helicases, 4Fe-4S iron sulfur cluster binding proteins of NifH family, RecA-like F1-ATPases, and ATPases Associated with a wide variety of Activities (AAA). Also included are a diverse set of nucleotide/nucleoside kinase families.


The actual alignment was detected with superfamily member cd19490:

Pssm-ID: 476819 [Multi-domain]  Cd Length: 226  Bit Score: 84.71  E-value: 8.12e-20
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 18860057  21 LVEISGPGNSGKSLVLQQLVAHCLVP-----YKFGGRQWSVLLINLSHKINRESLAKSIRMELKAYSVGeviAAKCPTEE 95
Cdd:cd19490   3 VIEITGPSGSGKTELLYHLAARCILPsswggVPLGGLEAAVVFIDTDGRFDILRLRSILEARIRAAIQA---ANSSDDEE 79
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 18860057  96 QLAEIAGECMSRVRFLNCFANDDVSTSLIDARYAIIN---DPGIQLVAMDTLSEFYWLD----EPKIAKRMSMYRHYRLL 168
Cdd:cd19490  80 DVEEIARECLQRLHIFRCHSSLQLLATLLSLENYLLSlsaNPELGLLLIDSISAFYWQDrfsaELARAAPLLQEAALRAI 159
                       170
                ....*....|
gi 18860057 169 QARLEKLCKD 178
Cdd:cd19490 160 LRELRRLRRR 169
 
Name Accession Description Interval E-value
XRCC2 cd19490
XRCC2 recombinase; XRCC2 (X-ray repair complementing defective repair in Chinese hamster cells ...
21-178 8.12e-20

XRCC2 recombinase; XRCC2 (X-ray repair complementing defective repair in Chinese hamster cells 2) recombinase, a RAD51 paralog, plays an important role in DNA repair by homologous recombination (HR). HR is an important error-free repair mechanism for chromosomal double-strand break (DSB) which otherwise leads to cell cycle arrest and death. XRCC2, together with the other RAD51 paralogs, RAD51B, RAD51C, RAD51D, and XRCC3, helps recruit RAD51 to the break site.


Pssm-ID: 410898 [Multi-domain]  Cd Length: 226  Bit Score: 84.71  E-value: 8.12e-20
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 18860057  21 LVEISGPGNSGKSLVLQQLVAHCLVP-----YKFGGRQWSVLLINLSHKINRESLAKSIRMELKAYSVGeviAAKCPTEE 95
Cdd:cd19490   3 VIEITGPSGSGKTELLYHLAARCILPsswggVPLGGLEAAVVFIDTDGRFDILRLRSILEARIRAAIQA---ANSSDDEE 79
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 18860057  96 QLAEIAGECMSRVRFLNCFANDDVSTSLIDARYAIIN---DPGIQLVAMDTLSEFYWLD----EPKIAKRMSMYRHYRLL 168
Cdd:cd19490  80 DVEEIARECLQRLHIFRCHSSLQLLATLLSLENYLLSlsaNPELGLLLIDSISAFYWQDrfsaELARAAPLLQEAALRAI 159
                       170
                ....*....|
gi 18860057 169 QARLEKLCKD 178
Cdd:cd19490 160 LRELRRLRRR 169
RepA COG3598
RecA-family ATPase [Replication, recombination and repair];
24-178 6.11e-04

RecA-family ATPase [Replication, recombination and repair];


Pssm-ID: 442817 [Multi-domain]  Cd Length: 313  Bit Score: 40.27  E-value: 6.11e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 18860057  24 ISGPGNSGKSLVLQQLVAHCLvpykfGGRQW--------SVLLINLshkinrESLAKSIRMELKAysvgeVIAAKCPTEE 95
Cdd:COG3598  18 LAGPPGTGKSFLALQLAAAVA-----AGGPWlgrrvppgKVLYLAA------EDDRGELRRRLKA-----LGADLGLPFA 81
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 18860057  96 QLAEiagecmsRVRFLN---CFANDDVSTSLIDAryaiINDPGIQLVAMDTLSEFYWLDEpkiakrmSMYRHYRLLQARL 172
Cdd:COG3598  82 DLDG-------RLRLLSlagDLDDTDDLEALERA----IEEEGPDLVVIDPLARVFGGDE-------NDAEEMRAFLNPL 143

                ....*.
gi 18860057 173 EKLCKD 178
Cdd:COG3598 144 DRLAER 149
 
Name Accession Description Interval E-value
XRCC2 cd19490
XRCC2 recombinase; XRCC2 (X-ray repair complementing defective repair in Chinese hamster cells ...
21-178 8.12e-20

XRCC2 recombinase; XRCC2 (X-ray repair complementing defective repair in Chinese hamster cells 2) recombinase, a RAD51 paralog, plays an important role in DNA repair by homologous recombination (HR). HR is an important error-free repair mechanism for chromosomal double-strand break (DSB) which otherwise leads to cell cycle arrest and death. XRCC2, together with the other RAD51 paralogs, RAD51B, RAD51C, RAD51D, and XRCC3, helps recruit RAD51 to the break site.


Pssm-ID: 410898 [Multi-domain]  Cd Length: 226  Bit Score: 84.71  E-value: 8.12e-20
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 18860057  21 LVEISGPGNSGKSLVLQQLVAHCLVP-----YKFGGRQWSVLLINLSHKINRESLAKSIRMELKAYSVGeviAAKCPTEE 95
Cdd:cd19490   3 VIEITGPSGSGKTELLYHLAARCILPsswggVPLGGLEAAVVFIDTDGRFDILRLRSILEARIRAAIQA---ANSSDDEE 79
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 18860057  96 QLAEIAGECMSRVRFLNCFANDDVSTSLIDARYAIIN---DPGIQLVAMDTLSEFYWLD----EPKIAKRMSMYRHYRLL 168
Cdd:cd19490  80 DVEEIARECLQRLHIFRCHSSLQLLATLLSLENYLLSlsaNPELGLLLIDSISAFYWQDrfsaELARAAPLLQEAALRAI 159
                       170
                ....*....|
gi 18860057 169 QARLEKLCKD 178
Cdd:cd19490 160 LRELRRLRRR 169
RepA COG3598
RecA-family ATPase [Replication, recombination and repair];
24-178 6.11e-04

RecA-family ATPase [Replication, recombination and repair];


Pssm-ID: 442817 [Multi-domain]  Cd Length: 313  Bit Score: 40.27  E-value: 6.11e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 18860057  24 ISGPGNSGKSLVLQQLVAHCLvpykfGGRQW--------SVLLINLshkinrESLAKSIRMELKAysvgeVIAAKCPTEE 95
Cdd:COG3598  18 LAGPPGTGKSFLALQLAAAVA-----AGGPWlgrrvppgKVLYLAA------EDDRGELRRRLKA-----LGADLGLPFA 81
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 18860057  96 QLAEiagecmsRVRFLN---CFANDDVSTSLIDAryaiINDPGIQLVAMDTLSEFYWLDEpkiakrmSMYRHYRLLQARL 172
Cdd:COG3598  82 DLDG-------RLRLLSlagDLDDTDDLEALERA----IEEEGPDLVVIDPLARVFGGDE-------NDAEEMRAFLNPL 143

                ....*.
gi 18860057 173 EKLCKD 178
Cdd:COG3598 144 DRLAER 149
 
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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