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2A19

PKR kinase domain- eIF2alpha- AMP-PNP complex.

Functional Information from GO Data
ChainGOidnamespacecontents
A0003676molecular_functionnucleic acid binding
A0003723molecular_functionRNA binding
A0003743molecular_functiontranslation initiation factor activity
B0004672molecular_functionprotein kinase activity
B0005524molecular_functionATP binding
B0006468biological_processprotein phosphorylation
C0004672molecular_functionprotein kinase activity
C0005524molecular_functionATP binding
C0006468biological_processprotein phosphorylation
Functional Information from PDB Data
site_idAC1
Number of Residues2
DetailsBINDING SITE FOR RESIDUE MG B 1641
ChainResidue
BASP432
BANP1640

site_idAC2
Number of Residues3
DetailsBINDING SITE FOR RESIDUE MG B 1642
ChainResidue
BASN419
BASP432
BANP1640

site_idAC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MG C 2642
ChainResidue
CASN419
CASP432
CANP2640
CMG2641

site_idAC4
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MG C 2641
ChainResidue
CASP414
CASP432
CANP2640
CMG2642

site_idAC5
Number of Residues3
DetailsBINDING SITE FOR RESIDUE PO4 C 901
ChainResidue
CLYS304
CARG307
CARG413

site_idAC6
Number of Residues13
DetailsBINDING SITE FOR RESIDUE ANP B 1640
ChainResidue
BGLY279
BVAL281
BVAL294
BLYS296
BMET366
BGLU367
BCYS369
BSER418
BASN419
BPHE421
BASP432
BMG1641
BMG1642

site_idAC7
Number of Residues10
DetailsBINDING SITE FOR RESIDUE ANP C 2640
ChainResidue
CHOH36
CILE273
CGLY274
CVAL294
CGLU367
CPHE368
CCYS369
CPHE421
CMG2641
CMG2642

Functional Information from PROSITE/UniProt
site_idPS00107
Number of Residues24
DetailsPROTEIN_KINASE_ATP Protein kinases ATP-binding region signature. IGSGGFGQVFkAkhridgkt..........YVIK
ChainResidueDetails
BILE273-LYS296

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 Residues16
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"16179258","evidenceCode":"ECO:0000305"},{"source":"PubMed","id":"31246429","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsModified residue: {"description":"Phosphothreonine; by autocatalysis","evidences":[{"source":"PubMed","id":"11152499","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues2
DetailsModified residue: {"description":"Phosphotyrosine; by autocatalysis","evidences":[{"source":"PubMed","id":"16373505","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues1
DetailsModified residue: {"description":"Phosphothreonine; by autocatalysis","evidences":[{"source":"PubMed","id":"11337501","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"16179258","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues1
DetailsModified residue: {"description":"Phosphothreonine; by autocatalysis","evidences":[{"source":"PubMed","id":"11337501","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"20685959","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"18669648","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
BASP414
BSER418

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
CASP414
CSER418

site_idCSA3
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
BASP414
BLYS416

site_idCSA4
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
CASP414
CLYS416

site_idCSA5
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
BASP414
BLYS416
BTHR451

site_idCSA6
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
BASN419
BASP414
BLYS416

site_idCSA7
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
CASN419
CASP414
CLYS416

239803

PDB entries from 2025-08-06

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