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2CRK

MUSCLE CREATINE KINASE

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0003824molecular_functioncatalytic activity
A0004111molecular_functioncreatine kinase activity
A0005515molecular_functionprotein binding
A0005524molecular_functionATP binding
A0005615cellular_componentextracellular space
A0009408biological_processresponse to heat
A0016301molecular_functionkinase activity
A0016740molecular_functiontransferase activity
A0016772molecular_functiontransferase activity, transferring phosphorus-containing groups
A0046314biological_processphosphocreatine biosynthetic process
Functional Information from PDB Data
site_idAC1
Number of Residues7
DetailsBINDING SITE FOR RESIDUE SO4 A 391
ChainResidue
AARG132
AARG320
AARG341
ASO4392
AHOH473
AHOH625
AHOH696

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SO4 A 392
ChainResidue
AARG130
AARG132
AARG292
ASO4391

site_idAC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SO4 A 393
ChainResidue
AVAL72
AARG96
ASER285
AHOH572

site_idAC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 A 394
ChainResidue
ATHR108
ATRP273
ATYR279
AHOH609
AHOH699
AHOH777

site_idATP
Number of Residues2
DetailsTHE SULFATES OCCUPY THE POSITIONS OF ALPHA AND GAMMA PHOSPHATES OF ATP.
ChainResidue
ASO4391
ASO4392

Functional Information from PROSITE/UniProt
site_idPS00112
Number of Residues7
DetailsPHOSPHAGEN_KINASE Phosphagen kinase active site signature. CP.SNLGT
ChainResidueDetails
ACYS283-THR289

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues87
DetailsDomain: {"description":"Phosphagen kinase N-terminal","evidences":[{"source":"PROSITE-ProRule","id":"PRU00842","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues7
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"17327675","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues3
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"UniProtKB","id":"P07310","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues3
DetailsModified residue: {"description":"Phosphothreonine","evidences":[{"source":"UniProtKB","id":"P00564","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"UniProtKB","id":"P00564","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues1
DetailsModified residue: {"description":"Phosphothreonine","evidences":[{"source":"UniProtKB","id":"P07310","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues5
DetailsAnnotated By Reference To The Literature 1bg0
ChainResidueDetails
AARG236
AARG292
AARG320
AARG132
AGLU232

246031

PDB entries from 2025-12-10

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