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4RFZ

Crystal structure of BTK kinase domain complexed with 6-(dimethylamino)-8-fluoro-2-[2-(hydroxymethyl)-3-[1-methyl-5-[[5-(morpholine-4-carbonyl)-2-pyridyl]amino]-6-oxo-3-pyridyl]phenyl]isoquinolin-1-one

Functional Information from GO Data
ChainGOidnamespacecontents
A0004672molecular_functionprotein kinase activity
A0004713molecular_functionprotein tyrosine kinase activity
A0005524molecular_functionATP binding
A0006468biological_processprotein phosphorylation
Functional Information from PDB Data
site_idAC1
Number of Residues21
DetailsBINDING SITE FOR RESIDUE 3OV A 701
ChainResidue
ALEU408
ATYR476
AMET477
AALA478
AGLY480
AASP521
AASN526
ALEU528
AASP539
ASER543
ATYR551
AGLY411
AHOH818
AHOH1060
AGLN412
APHE413
AVAL416
AALA428
ALYS430
ATHR474
AGLU475

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE DMS A 702
ChainResidue
ATYR551
ATHR552
APHE559
APRO560
APHE574
AHOH840

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE DMS A 703
ChainResidue
AARG520
ATRP563
ASER564
ASER578
AHOH809
AHOH814

Functional Information from PROSITE/UniProt
site_idPS00107
Number of Residues23
DetailsPROTEIN_KINASE_ATP Protein kinases ATP-binding region signature. LGTGQFGVVKyGkwrgqyd...........VAIK
ChainResidueDetails
ALEU408-LYS430

site_idPS00109
Number of Residues13
DetailsPROTEIN_KINASE_TYR Tyrosine protein kinases specific active-site signature. FLHrDLAARNCLV
ChainResidueDetails
APHE517-VAL529

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues253
DetailsDomain: {"description":"Protein kinase","evidences":[{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues7
DetailsMotif: {"description":"CAV1-binding"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"},{"source":"PROSITE-ProRule","id":"PRU10028","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues9
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues3
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"20052711","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3K54","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3OCT","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"21280133","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3PIY","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues1
DetailsModified residue: {"description":"Phosphotyrosine; by LYN and SYK","evidences":[{"source":"PubMed","id":"8630736","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9012831","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"23186163","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues1
DetailsModified residue: {"description":"Phosphotyrosine","evidences":[{"source":"PubMed","id":"15375214","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"15375214","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

238895

PDB entries from 2025-07-16

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