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4IAN

Crystal Structure of apo Human PRPF4B kinase domain

Functional Information from GO Data
ChainGOidnamespacecontents
A0004672molecular_functionprotein kinase activity
A0004674molecular_functionprotein serine/threonine kinase activity
A0005524molecular_functionATP binding
A0006468biological_processprotein phosphorylation
A0045292biological_processmRNA cis splicing, via spliceosome
B0004672molecular_functionprotein kinase activity
B0004674molecular_functionprotein serine/threonine kinase activity
B0005524molecular_functionATP binding
B0006468biological_processprotein phosphorylation
B0045292biological_processmRNA cis splicing, via spliceosome
Functional Information from PDB Data
site_idAC1
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SO4 A 1101
ChainResidue
ASER993
AASN995
AGLN996
ASO41105

site_idAC2
Number of Residues3
DetailsBINDING SITE FOR RESIDUE SO4 A 1102
ChainResidue
ALYS747
APHE748
AARG808

site_idAC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SO4 A 1103
ChainResidue
AARG856
AHOH1217
APTR849
AARG853

site_idAC4
Number of Residues1
DetailsBINDING SITE FOR RESIDUE SO4 A 1104
ChainResidue
AARG755

site_idAC5
Number of Residues8
DetailsBINDING SITE FOR RESIDUE SO4 A 1105
ChainResidue
AARG991
AILE992
ASER993
AGLN996
ASO41101
BSER993
BASN995
BGLN996

site_idAC6
Number of Residues3
DetailsBINDING SITE FOR RESIDUE SO4 B 1101
ChainResidue
BPTR849
BARG853
BARG856

Functional Information from PROSITE/UniProt
site_idPS00108
Number of Residues13
DetailsPROTEIN_KINASE_ST Serine/Threonine protein kinases active-site signature. IlHaDIKpdNILV
ChainResidueDetails
AILE811-VAL823

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

site_idSWS_FT_FI3
Number of Residues2
DetailsModified residue: {"description":"N6-acetyllysine","evidences":[{"source":"PubMed","id":"19608861","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsModified residue: {"description":"Phosphotyrosine","evidences":[{"source":"PubMed","id":"18669648","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"20068231","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"21406692","evidenceCode":"ECO:0007744"},{"source":"PubMed","id":"24275569","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"UniProtKB","id":"Q5RKH1","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

246031

PDB entries from 2025-12-10

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