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3UCW

Structure of MG2+ bound N-Terminal domain of Calmodulin

Functional Information from GO Data
ChainGOidnamespacecontents
A0005509molecular_functioncalcium ion binding
B0005509molecular_functioncalcium ion binding
C0005509molecular_functioncalcium ion binding
D0005509molecular_functioncalcium ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG A 100
ChainResidue
AASP20
AASP22
AASP24
ATHR26
AHOH208
AHOH224

site_idAC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG A 101
ChainResidue
AHOH211
AHOH212
ATHR62
AHOH209
AHOH210

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG A 102
ChainResidue
AASP64
AHOH217
BASP64
BHOH201
BHOH202
BHOH212

site_idAC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG B 100
ChainResidue
BASP20
BASP22
BASP24
BTHR26
BHOH204
BHOH205

site_idAC5
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG B 101
ChainResidue
BTHR62
BHOH207
BHOH208
BHOH209
BHOH217

site_idAC6
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG C 100
ChainResidue
CASP20
CASP22
CASP24
CTHR26
CHOH208
CHOH209

site_idAC7
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG C 101
ChainResidue
CTHR62
CHOH204
CHOH205
CHOH206
CHOH216

site_idAC8
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG C 102
ChainResidue
CASP64
CHOH202
CHOH203
CHOH219
CHOH220
DASP64

site_idAC9
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG D 100
ChainResidue
DASP20
DASP22
DASP24
DTHR26
DHOH201
DHOH202

site_idBC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG D 101
ChainResidue
DTHR62
DHOH203
DHOH204
DHOH212
DHOH230

Functional Information from PROSITE/UniProt
site_idPS00018
Number of Residues13
DetailsEF_HAND_1 EF-hand calcium-binding domain. DKDGDGTITtkEL
ChainResidueDetails
AASP20-LEU32
AASP56-PHE68

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues140
DetailsDomain: {"description":"EF-hand 1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues40
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"1474585","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"25441029","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"27564677","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"1CLL","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4UMO","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4V0C","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"5J03","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsModified residue: {"description":"N6-acetyllysine; alternate","evidences":[{"source":"PubMed","id":"19608861","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues4
DetailsModified residue: {"description":"Phosphothreonine; by CaMK4","evidences":[{"source":"UniProtKB","id":"P0DP29","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues8
DetailsCross-link: {"description":"Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin); alternate","evidences":[{"source":"UniProtKB","id":"P62157","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues70
DetailsDomain: {"description":"EF-hand 2","evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues1
DetailsModified residue: {"description":"N-acetylalanine","evidences":[{"source":"PubMed","id":"7093203","evidenceCode":"ECO:0000269"},{"source":"Reference","evidenceCode":"ECO:0000269","citation":{"citationType":"submission","publicationDate":"FEB-2008","submissionDatabase":"UniProtKB","authors":["Bienvenut W.V.","Bensaad K.","Vousden K.H."]}},{"source":"PubMed","id":"19413330","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"22223895","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"22814378","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"25944712","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

246031

PDB entries from 2025-12-10

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