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4CXA

Crystal structure of the human CDK12-cyclin K complex bound to AMPPNP

Functional Information from GO Data
ChainGOidnamespacecontents
A0004672molecular_functionprotein kinase activity
A0005524molecular_functionATP binding
A0006468biological_processprotein phosphorylation
B0006357biological_processregulation of transcription by RNA polymerase II
B0016538molecular_functioncyclin-dependent protein serine/threonine kinase regulator activity
C0004672molecular_functionprotein kinase activity
C0005524molecular_functionATP binding
C0006468biological_processprotein phosphorylation
D0006357biological_processregulation of transcription by RNA polymerase II
D0016538molecular_functioncyclin-dependent protein serine/threonine kinase regulator activity
Functional Information from PDB Data
site_idAC1
Number of Residues15
DetailsBINDING SITE FOR RESIDUE ANP A 2051
ChainResidue
AGLY736
ALYS861
ASER863
AASN864
ALEU866
AASP877
AHIS1040
ATHR737
AALA754
ALYS756
APHE813
AGLU814
AMET816
AASP819
AASP859

Functional Information from PROSITE/UniProt
site_idPS00107
Number of Residues24
DetailsPROTEIN_KINASE_ATP Protein kinases ATP-binding region signature. IGEGTYGQVYkAkdkdtgel..........VALK
ChainResidueDetails
AILE733-LYS756

site_idPS00108
Number of Residues13
DetailsPROTEIN_KINASE_ST Serine/Threonine protein kinases active-site signature. FlHrDIKcsNILL
ChainResidueDetails
APHE855-LEU867

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsACT_SITE: Proton acceptor => ECO:0000255|PROSITE-ProRule:PRU00159, ECO:0000255|PROSITE-ProRule:PRU10027
ChainResidueDetails
AASP859
CASP859

site_idSWS_FT_FI2
Number of Residues8
DetailsBINDING:
ChainResidueDetails
AILE733
ALYS756
AGLU814
AHIS1040
CILE733
CLYS756
CGLU814
CHIS1040

site_idSWS_FT_FI3
Number of Residues2
DetailsMOD_RES: Phosphoserine => ECO:0007744|PubMed:23186163
ChainResidueDetails
ASER889
CSER889

site_idSWS_FT_FI4
Number of Residues2
DetailsMOD_RES: Phosphothreonine => ECO:0000269|PubMed:24662513, ECO:0007744|PubMed:20068231, ECO:0007744|PubMed:21406692, ECO:0007744|PubMed:23186163
ChainResidueDetails
ATPO893
CTPO893

237423

PDB entries from 2025-06-11

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