UniProt:P49336 CDK8

chain
  • chain:1-464
checksum 00CBAB6CE354605F
comment
  • FUNCTION Component of the Mediator complex, a coactivator involved in regulated gene transcription of nearly all RNA polymerase II-dependent genes. Mediator functions as a bridge to convey information from gene-specific regulatory proteins to the basal RNA polymerase II transcription machinery. Mediator is recruited to promoters by direct interactions with regulatory proteins and serves as a scaffold for the assembly of a functional pre-initiation complex with RNA polymerase II and the general transcription factors. Phosphorylates the CTD (C-terminal domain) of the large subunit of RNA polymerase II (RNAp II), which may inhibit the formation of a transcription initiation complex. Phosphorylates CCNH leading to down-regulation of the TFIIH complex and transcriptional repression. Recruited through interaction with MAML1 to hyperphosphorylate the intracellular domain of NOTCH, leading to its degradation.CATALYTIC ACTIVITY L-seryl-[protein] + ATP = O-phospho-L-seryl-[protein] + ADP + H(+)CATALYTIC ACTIVITY L-threonyl-[protein] + ATP = O-phospho-L-threonyl-[protein] + ADP + H(+)CATALYTIC ACTIVITY [DNA-directed RNA polymerase] + ATP = phospho-[DNA-directed RNA polymerase] + ADP + H(+)COFACTOR Component of the Mediator complex, which is composed of MED1, MED4, MED6, MED7, MED8, MED9, MED10, MED11, MED12, MED13, MED13L, MED14, MED15, MED16, MED17, MED18, MED19, MED20, MED21, MED22, MED23, MED24, MED25, MED26, MED27, MED29, MED30, MED31, CCNC, CDK8 and CDC2L6/CDK11. The MED12, MED13, CCNC and CDK8 subunits form a distinct module termed the CDK8 module. Mediator containing the CDK8 module is less active than Mediator lacking this module in supporting transcriptional activation. Individual preparations of the Mediator complex lacking one or more distinct subunits have been variously termed ARC, CRSP, DRIP, PC2, SMCC and TRAP. The cylin/CDK pair formed by CCNC/CDK8 also associates with the large subunit of RNA polymerase II. Interacts with CTNNB1, GLI3 and MAML1.INTERACTION The disease is caused by variants affecting the gene represented in this entry.SIMILARITY Belongs to the protein kinase superfamily. CMGC Ser/Thr protein kinase family. CDC2/CDKX subfamily.
crossReference
databaseName UniProt
dbId 69456
description
  • recommendedName: Cyclin-dependent kinase 8 ecNumber: 2.7.11.22 ecNumber: 2.7.11.23 alternativeName: Cell division protein kinase 8 alternativeName: Mediator complex subunit CDK8 alternativeName: Mediator of RNA polymerase II transcription subunit CDK8 alternativeName: Protein kinase K35
displayName UniProt:P49336 CDK8
geneName
  • CDK8
identifier P49336
isSequenceChanged false
keyword
  • 3D-structure
  • Activator
  • Alternative splicing
  • ATP-binding
  • Autism spectrum disorder
  • Disease variant
  • Intellectual disability
  • Kinase
  • Nucleotide-binding
  • Nucleus
  • Proteomics identification
  • Reference proteome
  • Repressor
  • Serine/threonine-protein kinase
  • Transcription
  • Transcription regulation
  • Transferase
modified [InstanceEdit:9939033] Weiser, Joel, 2025-02-21
moleculeType Protein
name
  • CDK8
otherIdentifier
  • 1024
  • 11745882_s_at
  • 11763387_s_at
  • 1189_at
  • 1553112_PM_s_at
  • 1553112_s_at
  • 1553113_PM_s_at
  • 1553113_s_at
  • 16773430
  • 204831_PM_at
  • 204831_at
  • 3482502
  • 3482503
  • 3482504
  • 3482505
  • 3482506
  • 3482507
  • 3482508
  • 3482509
  • 3482510
  • 3482511
  • 3482512
  • 3482522
  • 3482523
  • 3482524
  • 3482536
  • 3482537
  • 3482539
  • 3482540
  • 3482542
  • 3482543
  • 3482544
  • 3482546
  • 3482548
  • 3482550
  • 3482553
  • 3482554
  • 3482571
  • 35140_at
  • 7968199
  • A_14_P128762
  • A_23_P139958
  • GE576844
  • GE60102
  • GE855583
  • GO:0000166
  • GO:0000307
  • GO:0003824
  • GO:0004672
  • GO:0004674
  • GO:0004693
  • GO:0005515
  • GO:0005524
  • GO:0005634
  • GO:0005654
  • GO:0005730
  • GO:0006355
  • GO:0006468
  • GO:0008353
  • GO:0016301
  • GO:0016592
  • GO:0016740
  • GO:0032991
  • GO:0045944
  • GO:0051726
  • GO:0106310
  • GO:0140096
  • GO:1990508
  • HMNXSV003011355
  • HMNXSV003014489
  • Hs.25283.0.S2_3p_at
  • Hs2.397734.1.S1_3p_s_at
  • Hs2.397734.1.S2_3p_s_at
  • ILMN_1777913
  • ILMN_1816527
  • PH_hs_0019005
  • TC13000068.hg
  • TC13000974.hg
  • X85753_at
  • p26666
physicalEntity
referenceDatabase [ReferenceDatabase:2] UniProt
referenceGene
referenceTranscript
schemaClass ReferenceGeneProduct
secondaryIdentifier
  • CDK8_HUMAN
  • Q5VUF3
  • Q6ISB5
sequenceLength 464
species [Species:48887] Homo sapiens
stId uniprot:P49336
url http://purl.uniprot.org/uniprot/P49336

Referrals

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