Protein: RPB1B
DNA-directed RNA polymerase II subunit RPB11-b1 (RNA polymerase II subunit B11-b1) (RPB11b1) (DNA-directed RNA polymerase II subunit J2)

Gene: RPB1B, POLR2J2
Organism: Homo sapiens
Interactions: 21
UniProt ID: Q9GZM3

Gene Ontology (top 5):
GO:0003677 - DNA binding
GO:0003899 - DNA-directed RNA polymerase activity
GO:0005665 - RNA polymerase II, core complex
GO:0006366 - transcription by RNA polymerase II
GO:0046983 - protein dimerization activity

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

621737

RPB3
DNA-directed RNA polymerase II subunit RPB3

2

17

Small-scale

0.768

High

912226

RPB11
DNA-directed RNA polymerase II subunit RPB11-a

1

3

High-throughput

0.691

High

180385

RPAC1
DNA-directed RNA polymerases I and III subunit RPAC1

1

17

High-throughput

0.621

High

192851

RPB4
DNA-directed RNA polymerase II subunit RPB4

1

2

High-throughput

0.536

High

983700

RPAB5
DNA-directed RNA polymerases I, II, and III subunit RPABC5

1

4

High-throughput

0.536

High

1416228

RPAP1
RNA polymerase II-associated protein 1

1

3

High-throughput

0.536

High

902947

DUS3
Dual specificity protein phosphatase 3

1

1

High-throughput

0.489

High

1313043

RPAP2
Putative RNA polymerase II subunit B1 CTD phosphatase RPAP2

1

2

High-throughput

0.489

High

1428144

GPN2
GPN-loop GTPase 2

1

7

High-throughput

0.489

High

505975

MYZAP
Myocardial zonula adherens protein

1

2

High-throughput

0.445

High

63259

VP37C
Vacuolar protein sorting-associated protein 37C

1

2

High-throughput

0.439

High

1220043

TTC23
Tetratricopeptide repeat protein 23

1

1

High-throughput

0.439

High

1328065

ATPF2
ATP synthase mitochondrial F1 complex assembly factor 2

1

1

High-throughput

0.439

High

1414776

TRAF4
TNF receptor-associated factor 4

1

2

High-throughput

0.439

High

1428147

SATB2
DNA-binding protein SATB2

1

2

High-throughput

0.439

High

1232012

GL1AD
DNA-directed RNA polymerase II subunit GRINL1A, isoforms 4/5

1

1

High-throughput

0.437

High

1428145

LN28A
Protein lin-28 homolog A

1

2

High-throughput

0.407

High

224165

BUB1
Mitotic checkpoint serine/threonine-protein kinase BUB1

1

0

High-throughput

0.279

Low

839820

EPS15
Epidermal growth factor receptor substrate 15

1

0

High-throughput

0.279

Low

1428146

TSYL4
Testis-specific Y-encoded-like protein 4

1

0

High-throughput

0.279

Low

947275

NLRP6
NACHT, LRR and PYD domains-containing protein 6

1

0

High-throughput

0.249

Low


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Last updated: 11Aug2025