NCBI Home Page NCBI Site Search page NCBI Guide that lists and describes the NCBI resources
Conserved domains on  [gi|4504859|ref|NP_002241|]
View 

intermediate conductance calcium-activated potassium channel protein 4 [Homo sapiens]

Protein Classification

SK_channel and CaMBD domain-containing protein( domain architecture ID 10507664)

protein containing domains SK_channel, Ion_trans_2, and CaMBD

Graphical summary

 Zoom to residue level

show extra options »

Show site features     Horizontal zoom: ×

List of domain hits

 Name Accession Description Interval E-value
SK_channel pfam03530
Calcium-activated SK potassium channel;
12-121 1.40e-50

Calcium-activated SK potassium channel;


:

Pssm-ID: 460958  Cd Length: 111  Bit Score: 166.23  E-value: 1.40e-50
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 4504859     12 LRRRKRLLEQEKSLAGWALVLAGTGIGLMVLHAEMLWFGG-CSWALYLFLVKCTISISTFLLLCLIVAFHAKEVQLFMTD 90
Cdd:pfam03530   1 LRRRKELLERRRRLSDFALVLALFGIVLMVIETELTALGVySKGSMYSLALKSLISLSTVLLLGLIVAYHAIEIQLFMVD 80

                          90       100       110
                  ....*....|....*....|....*....|.
gi 4504859     91 NGLRDWRVALTGRQAAQIVLELVVCGLHPAP 121
Cdd:pfam03530  81 NGADDWRVAMTSERILQILLELLVCAIHPIP 111
CaMBD pfam02888
Calmodulin binding domain; Small-conductance Ca2+-activated K+ channels (SK channels) are ...
 304-375 1.50e-34

Calmodulin binding domain; Small-conductance Ca2+-activated K+ channels (SK channels) are independent of voltage and gated solely by intracellular Ca2+. These membrane channels are heteromeric complexes that comprise pore-forming alpha-subunits and the Ca2+-binding protein calmodulin (CaM). CaM binds to the SK channel through this the CaM-binding domain (CaMBD), which is located in an intracellular region of the alpha-subunit immediately carboxy-terminal to the pore. Channel opening is triggered when Ca2+ binds the EF hands in the N-lobe of CaM. The structure of this domain complexed with CaM is known. This domain forms an elongated dimer with a CaM molecule bound at each end; each CaM wraps around three alpha-helices, two from one CaMBD subunit and one from the other.


:

Pssm-ID: 460739  Cd Length: 75  Bit Score: 123.16  E-value: 1.50e-34
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 4504859    304 DIQYTKEMKESAARVLQEAWMFYKHTR---RKESHAARRHQRKLLAAINAFRQVRLKHRKLREQVNSMVDISKMH 375
Cdd:pfam02888   1 DTQLTKELKNAAANVLRETWLIYKHTKlvkKRDQSRVRKHQRKLLQAIHTFRKVKMKQRKLRDQVNTMVDLSKMQ 75
Ion_trans_2 pfam07885
Ion channel; This family includes the two membrane helix type ion channels found in bacteria.
 237-290 5.37e-14

Ion channel; This family includes the two membrane helix type ion channels found in bacteria.


:

Pssm-ID: 462301 [Multi-domain]  Cd Length: 78  Bit Score: 66.91  E-value: 5.37e-14
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 4504859    237 LSDTLWLIPITFLTIGYGDVVPGTMWGKIVCLCTGVMGVCCTALLVAVVARKLE 290
Cdd:pfam07885  24 FLDALYFSFVTLTTVGYGDIVPLTDAGRLFTIFYILIGIPLFAIFLAVLGRFLT 77
 
Name Accession Description Interval E-value
SK_channel pfam03530
Calcium-activated SK potassium channel;
12-121 1.40e-50

Calcium-activated SK potassium channel;


Pssm-ID: 460958  Cd Length: 111  Bit Score: 166.23  E-value: 1.40e-50
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 4504859     12 LRRRKRLLEQEKSLAGWALVLAGTGIGLMVLHAEMLWFGG-CSWALYLFLVKCTISISTFLLLCLIVAFHAKEVQLFMTD 90
Cdd:pfam03530   1 LRRRKELLERRRRLSDFALVLALFGIVLMVIETELTALGVySKGSMYSLALKSLISLSTVLLLGLIVAYHAIEIQLFMVD 80

                          90       100       110
                  ....*....|....*....|....*....|.
gi 4504859     91 NGLRDWRVALTGRQAAQIVLELVVCGLHPAP 121
Cdd:pfam03530  81 NGADDWRVAMTSERILQILLELLVCAIHPIP 111
CaMBD pfam02888
Calmodulin binding domain; Small-conductance Ca2+-activated K+ channels (SK channels) are ...
 304-375 1.50e-34

Calmodulin binding domain; Small-conductance Ca2+-activated K+ channels (SK channels) are independent of voltage and gated solely by intracellular Ca2+. These membrane channels are heteromeric complexes that comprise pore-forming alpha-subunits and the Ca2+-binding protein calmodulin (CaM). CaM binds to the SK channel through this the CaM-binding domain (CaMBD), which is located in an intracellular region of the alpha-subunit immediately carboxy-terminal to the pore. Channel opening is triggered when Ca2+ binds the EF hands in the N-lobe of CaM. The structure of this domain complexed with CaM is known. This domain forms an elongated dimer with a CaM molecule bound at each end; each CaM wraps around three alpha-helices, two from one CaMBD subunit and one from the other.


Pssm-ID: 460739  Cd Length: 75  Bit Score: 123.16  E-value: 1.50e-34
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 4504859    304 DIQYTKEMKESAARVLQEAWMFYKHTR---RKESHAARRHQRKLLAAINAFRQVRLKHRKLREQVNSMVDISKMH 375
Cdd:pfam02888   1 DTQLTKELKNAAANVLRETWLIYKHTKlvkKRDQSRVRKHQRKLLQAIHTFRKVKMKQRKLRDQVNTMVDLSKMQ 75
CaMBD smart01053
Calmodulin binding domain; Small-conductance Ca2+-activated K+ channels (SK channels) are ...
 304-376 3.95e-34

Calmodulin binding domain; Small-conductance Ca2+-activated K+ channels (SK channels) are independent of voltage and gated solely by intracellular Ca2+. These membrane channels are heteromeric complexes that comprise pore-forming alpha-subunits and the Ca2+-binding protein calmodulin (CaM). CaM binds to the SK channel through this the CaM-binding domain (CaMBD), which is located in an intracellular region of the alpha-subunit immediately carboxy-terminal to the pore. Channel opening is triggered when Ca2+ binds the EF hands in the N-lobe of CaM. The structure of this domain complexed with CaM is known. This domain forms an elongated dimer with a CaM molecule bound at each end; each CaM wraps around three alpha-helices, two from one CaMBD subunit and one from the other.


Pssm-ID: 198121  Cd Length: 76  Bit Score: 122.14  E-value: 3.95e-34
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 4504859     304 DIQYTKEMKESAARVLQEAWMFYKHT---RRKESHAARRHQRKLLAAINAFRQVRLKHRKLREQVNSMVDISKMHM 376
Cdd:smart01053   1 DTQLTKRVKNAAANVLRETWLIYKHTklvKKGDQGRLRKHQRKFLQAIHQFRSVKMKQRKLREQANSLVDLAKTQM 76
Ion_trans_2 pfam07885
Ion channel; This family includes the two membrane helix type ion channels found in bacteria.
 237-290 5.37e-14

Ion channel; This family includes the two membrane helix type ion channels found in bacteria.


Pssm-ID: 462301 [Multi-domain]  Cd Length: 78  Bit Score: 66.91  E-value: 5.37e-14
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 4504859    237 LSDTLWLIPITFLTIGYGDVVPGTMWGKIVCLCTGVMGVCCTALLVAVVARKLE 290
Cdd:pfam07885  24 FLDALYFSFVTLTTVGYGDIVPLTDAGRLFTIFYILIGIPLFAIFLAVLGRFLT 77
 
Name Accession Description Interval E-value
SK_channel pfam03530
Calcium-activated SK potassium channel;
12-121 1.40e-50

Calcium-activated SK potassium channel;


Pssm-ID: 460958  Cd Length: 111  Bit Score: 166.23  E-value: 1.40e-50
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 4504859     12 LRRRKRLLEQEKSLAGWALVLAGTGIGLMVLHAEMLWFGG-CSWALYLFLVKCTISISTFLLLCLIVAFHAKEVQLFMTD 90
Cdd:pfam03530   1 LRRRKELLERRRRLSDFALVLALFGIVLMVIETELTALGVySKGSMYSLALKSLISLSTVLLLGLIVAYHAIEIQLFMVD 80

                          90       100       110
                  ....*....|....*....|....*....|.
gi 4504859     91 NGLRDWRVALTGRQAAQIVLELVVCGLHPAP 121
Cdd:pfam03530  81 NGADDWRVAMTSERILQILLELLVCAIHPIP 111
CaMBD pfam02888
Calmodulin binding domain; Small-conductance Ca2+-activated K+ channels (SK channels) are ...
 304-375 1.50e-34

Calmodulin binding domain; Small-conductance Ca2+-activated K+ channels (SK channels) are independent of voltage and gated solely by intracellular Ca2+. These membrane channels are heteromeric complexes that comprise pore-forming alpha-subunits and the Ca2+-binding protein calmodulin (CaM). CaM binds to the SK channel through this the CaM-binding domain (CaMBD), which is located in an intracellular region of the alpha-subunit immediately carboxy-terminal to the pore. Channel opening is triggered when Ca2+ binds the EF hands in the N-lobe of CaM. The structure of this domain complexed with CaM is known. This domain forms an elongated dimer with a CaM molecule bound at each end; each CaM wraps around three alpha-helices, two from one CaMBD subunit and one from the other.


Pssm-ID: 460739  Cd Length: 75  Bit Score: 123.16  E-value: 1.50e-34
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 4504859    304 DIQYTKEMKESAARVLQEAWMFYKHTR---RKESHAARRHQRKLLAAINAFRQVRLKHRKLREQVNSMVDISKMH 375
Cdd:pfam02888   1 DTQLTKELKNAAANVLRETWLIYKHTKlvkKRDQSRVRKHQRKLLQAIHTFRKVKMKQRKLRDQVNTMVDLSKMQ 75
CaMBD smart01053
Calmodulin binding domain; Small-conductance Ca2+-activated K+ channels (SK channels) are ...
 304-376 3.95e-34

Calmodulin binding domain; Small-conductance Ca2+-activated K+ channels (SK channels) are independent of voltage and gated solely by intracellular Ca2+. These membrane channels are heteromeric complexes that comprise pore-forming alpha-subunits and the Ca2+-binding protein calmodulin (CaM). CaM binds to the SK channel through this the CaM-binding domain (CaMBD), which is located in an intracellular region of the alpha-subunit immediately carboxy-terminal to the pore. Channel opening is triggered when Ca2+ binds the EF hands in the N-lobe of CaM. The structure of this domain complexed with CaM is known. This domain forms an elongated dimer with a CaM molecule bound at each end; each CaM wraps around three alpha-helices, two from one CaMBD subunit and one from the other.


Pssm-ID: 198121  Cd Length: 76  Bit Score: 122.14  E-value: 3.95e-34
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 4504859     304 DIQYTKEMKESAARVLQEAWMFYKHT---RRKESHAARRHQRKLLAAINAFRQVRLKHRKLREQVNSMVDISKMHM 376
Cdd:smart01053   1 DTQLTKRVKNAAANVLRETWLIYKHTklvKKGDQGRLRKHQRKFLQAIHQFRSVKMKQRKLREQANSLVDLAKTQM 76
Ion_trans_2 pfam07885
Ion channel; This family includes the two membrane helix type ion channels found in bacteria.
 237-290 5.37e-14

Ion channel; This family includes the two membrane helix type ion channels found in bacteria.


Pssm-ID: 462301 [Multi-domain]  Cd Length: 78  Bit Score: 66.91  E-value: 5.37e-14
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....
gi 4504859    237 LSDTLWLIPITFLTIGYGDVVPGTMWGKIVCLCTGVMGVCCTALLVAVVARKLE 290
Cdd:pfam07885  24 FLDALYFSFVTLTTVGYGDIVPLTDAGRLFTIFYILIGIPLFAIFLAVLGRFLT 77
 
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.
Help | Disclaimer | Write to the Help Desk
NCBI | NLM | NIH