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1QL6

THE CATALYTIC MECHANISM OF PHOSPHORYLASE KINASE PROBED BY MUTATIONAL STUDIES

Functional Information from GO Data
ChainGOidnamespacecontents
A0004672molecular_functionprotein kinase activity
A0004689molecular_functionphosphorylase kinase activity
A0005516molecular_functioncalmodulin binding
A0005524molecular_functionATP binding
A0005964cellular_componentphosphorylase kinase complex
A0005977biological_processglycogen metabolic process
A0006468biological_processprotein phosphorylation
Functional Information from PDB Data
site_idAC1
Number of Residues3
DetailsBINDING SITE FOR RESIDUE MN B 382
ChainResidue
AASP167
AATP301
AHOH467

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MN B 383
ChainResidue
AASN154
AASP167
AATP301
AHOH402

site_idAC3
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 C 401
ChainResidue
ALEU180
AHOH448
AHOH415
ALYS72
AARG148

site_idAC4
Number of Residues20
DetailsBINDING SITE FOR RESIDUE ATP B 381
ChainResidue
ALEU25
AGLY26
AGLY28
ASER31
AVAL33
AALA46
ALYS48
AASP104
AMET106
AGLU110
ALYS124
AGLU153
AASN154
ALEU156
AASP167
AMN302
AMN303
AHOH447
AHOH422
AHOH402

Functional Information from PROSITE/UniProt
site_idPS00107
Number of Residues24
DetailsPROTEIN_KINASE_ATP Protein kinases ATP-binding region signature. LGRGVSSVVRrCihkptcke..........YAVK
ChainResidueDetails
ALEU25-LYS48

site_idPS00108
Number of Residues13
DetailsPROTEIN_KINASE_ST Serine/Threonine protein kinases active-site signature. IvHrDLKpeNILL
ChainResidueDetails
AILE145-LEU157

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsACT_SITE: Proton acceptor => ECO:0000255|PROSITE-ProRule:PRU00159, ECO:0000255|PROSITE-ProRule:PRU10027
ChainResidueDetails
ALEU150

site_idSWS_FT_FI2
Number of Residues2
DetailsBINDING: BINDING => ECO:0000255|PROSITE-ProRule:PRU00159
ChainResidueDetails
AGLY26
AILE49

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
AASP149
AGLU153

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
ALYS151
AASP149

site_idCSA3
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
ATHR186
ALYS151
AASP149

site_idCSA4
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
ALYS151
AASN154
AASP149

site_idMCSA1
Number of Residues5
DetailsM-CSA 35
ChainResidueDetails
AASP149hydrogen bond acceptor, hydrogen bond donor, proton acceptor, proton donor
ALYS151electrostatic stabiliser, hydrogen bond donor
AASN154metal ligand
AASP167metal ligand
ATHR186activator, hydrogen bond donor

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PDB entries from 2025-06-25

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