6o9l

Electron Microscopy
7.2Å resolution

Human holo-PIC in the closed state

Released:
Source organism: Homo sapiens
Related structures: EMD-3307

Function and Biology Details

Reactions catalysed:
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
Acetyl-CoA + [protein]-L-lysine = CoA + [protein]-N(6)-acetyl-L-lysine
ATP + H(2)O = ADP + phosphate
ATP + a protein = ADP + a phosphoprotein
ATP + [DNA-directed RNA polymerase] = ADP + [DNA-directed RNA polymerase] phosphate
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
hetero 33-mer (preferred)
PDBe Complex ID:
PDB-CPX-120375 (preferred)
Entry contents:
31 distinct polypeptide molecules
2 distinct DNA molecules
Macromolecules (33 distinct):
DNA-directed RNA polymerase II subunit RPB1 Chain: A
DNA-directed RNA polymerase II subunit RPB2 Chain: B
Molecule details ›
Chain: B
Length: 1174 amino acids
Theoretical weight: 134.07 KDa
Source organism: Homo sapiens
UniProt:
  • Canonical: P30876 (Residues: 1-1174; Coverage: 100%)
Gene name: POLR2B
Sequence domains:
DNA-directed RNA polymerase II subunit RPB3 Chain: C
DNA-directed RNA polymerase II subunit RPB4 Chain: D
DNA-directed RNA polymerases I, II, and III subunit RPABC1 Chain: E
DNA-directed RNA polymerases I, II, and III subunit RPABC2 Chain: F
DNA-directed RNA polymerase II subunit RPB7 Chain: G
DNA-directed RNA polymerases I, II, and III subunit RPABC3 Chain: H
DNA-directed RNA polymerase II subunit RPB9 Chain: I
DNA-directed RNA polymerases I, II, and III subunit RPABC5 Chain: J
DNA-directed RNA polymerase II subunit RPB11-a Chain: K
DNA-directed RNA polymerases I, II, and III subunit RPABC4 Chain: L
Transcription initiation factor IIB Chain: M
Transcription initiation factor IIA subunit 1 Chain: N
Transcription initiation factor IIA subunit 2 Chain: O
TATA-box-binding protein Chain: P
General transcription factor IIE subunit 1 Chain: Q
Transcription initiation factor IIE subunit beta Chain: R
General transcription factor IIF subunit 1 Chain: S
General transcription factor IIF subunit 2 Chain: T
Transcription elongation factor A protein 1 Chain: U
General transcription and DNA repair factor IIH helicase subunit XPD Chain: 0
General transcription factor IIH subunit 1 Chain: 1
General transcription factor IIH subunit 4 Chain: 2
CDK-activating kinase assembly factor MAT1 Chain: 3
General transcription factor IIH subunit 3 Chain: 4
General transcription factor IIH subunit 5 Chain: 5
General transcription factor IIH subunit 2 Chain: 6
General transcription and DNA repair factor IIH helicase/translocase subunit XPB Chain: 7
Cyclin-dependent kinase 7 Chain: 8
Cyclin-H Chain: 9
DNA (65-MER) Chain: X
DNA (65-MER) Chain: Y

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 7.2Å
Relevant EMDB volumes: EMD-3307
Expression system: Escherichia coli