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1Q8Z

The apoenzyme structure of the yeast SR protein kinase, Sky1p

Functional Information from GO Data
ChainGOidnamespacecontents
A0004672molecular_functionprotein kinase activity
A0005524molecular_functionATP binding
A0006468biological_processprotein phosphorylation
B0004672molecular_functionprotein kinase activity
B0005524molecular_functionATP binding
B0006468biological_processprotein phosphorylation
Functional Information from PDB Data
site_idAC1
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SO4 A 801
ChainResidue
AHOH101
APRO152
ATYR153
ALYS154
AASP155
APHE232
AASN233
AHIS234
ALYS235

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE SO4 B 802
ChainResidue
BPRO152
BLYS154
BASP155
BASN233
BHIS234
BLYS235

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE EDO A 1000
ChainResidue
AALA198
AASP201
AGLY552
AALA554
ATYR561
AMOH2390

site_idAC4
Number of Residues7
DetailsBINDING SITE FOR RESIDUE EDO B 1003
ChainResidue
AHOH34
BALA198
BASP201
BGLY552
BALA554
BTYR561
BMOH2389

site_idAC5
Number of Residues3
DetailsBINDING SITE FOR RESIDUE MOH B 2389
ChainResidue
AGLU197
AMOH2390
BEDO1003

site_idAC6
Number of Residues2
DetailsBINDING SITE FOR RESIDUE MOH A 2390
ChainResidue
AEDO1000
BMOH2389

Functional Information from PROSITE/UniProt
site_idPS00107
Number of Residues24
DetailsPROTEIN_KINASE_ATP Protein kinases ATP-binding region signature. LGWGHFSTVWlAkdmvnnth..........VAMK
ChainResidueDetails
ALEU164-LYS187

site_idPS00108
Number of Residues13
DetailsPROTEIN_KINASE_ST Serine/Threonine protein kinases active-site signature. IiHtDIKpeNVLM
ChainResidueDetails
AILE290-MET302

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"},{"source":"PROSITE-ProRule","id":"PRU10027","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues18
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
AGLU298
AASP294

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
BGLU298
BASP294

site_idCSA3
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
AASP294
ALYS296

site_idCSA4
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
BASP294
BLYS296

site_idCSA5
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
ATHR567
AASP294
ALYS296

site_idCSA6
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
BTHR567
BASP294
BLYS296

site_idCSA7
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
AASP294
ALYS296
AASN299

site_idCSA8
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
BASP294
BLYS296
BASN299

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PDB entries from 2026-01-14

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