Protein: RPB9
DNA-directed RNA polymerase II subunit RPB9 (RNA polymerase II subunit B9) (B12.6) (DNA-directed RNA polymerase II 14.2 kDa polypeptide) (DNA-directed RNA polymerase II subunit 9)

Gene: RPB9
Organism: Saccharomyces cerevisiae S288C
Interactions: 70
UniProt ID: P27999

Gene Ontology (top 5):
GO:0001172 - RNA-templated transcription
GO:0001193 - maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II
GO:0003676 - nucleic acid binding
GO:0003899 - DNA-directed RNA polymerase activity
GO:0005634 - nucleus

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

401915

RPB1
DNA-directed RNA polymerase II subunit RPB1

13

20

Small-scale

0.980

High

470478

RPB2
DNA-directed RNA polymerase II subunit RPB2

8

12

Small-scale

0.969

High

632135

RPAB1
DNA-directed RNA polymerases I, II, and III subunit RPABC1

9

7

Small-scale

0.966

High

699960

T2FA
Transcription initiation factor IIF subunit alpha

5

0

High-throughput

0.875

High

594234

RPB3
DNA-directed RNA polymerase II subunit RPB3

19

12

Small-scale

0.763

High

632063

RPB4
DNA-directed RNA polymerase II subunit RPB4

9

4

Small-scale

0.749

High

699944

RPB7
DNA-directed RNA polymerase II subunit RPB7

8

9

Small-scale

0.746

High

632314

RPAB3
DNA-directed RNA polymerases I, II, and III subunit RPABC3

8

5

Small-scale

0.743

High

699961

T2FB
Transcription initiation factor IIF subunit beta

6

3

Small-scale

0.730

High

632235

RPAB2
DNA-directed RNA polymerases I, II, and III subunit RPABC2

6

6

Small-scale

0.729

High

699950

RPB11
DNA-directed RNA polymerase II subunit RPB11

6

8

Small-scale

0.722

High

699946

TAF14
Transcription initiation factor TFIID subunit 14

6

0

Small-scale

0.699

High

699977

IWR1
RNA polymerase II nuclear localization protein IWR1

4

1

Small-scale

0.691

High

454561

TFS2
Transcription elongation factor S-II

3

5

High-throughput

0.667

High

699976

ASR1
Alcohol-sensitive RING finger protein 1

4

0

Small-scale

0.657

High

402197

RPC1
DNA-directed RNA polymerase III subunit RPC1

1

20

Small-scale

0.656

High

645029

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

3

5

Small-scale

0.650

High

699954

RTR1
RNA polymerase II subunit B1 CTD phosphatase RTR1

3

2

Small-scale

0.640

High

699962

SET2
Histone-lysine N-methyltransferase, H3 lysine-36 specific

3

1

Small-scale

0.640

High

699942

SPT4
Transcription elongation factor SPT4

3

0

High-throughput

0.622

High

694489

SPT5
Transcription elongation factor SPT5

2

2

High-throughput

0.601

High

699934

TF2B
Transcription initiation factor IIB

2

6

High-throughput

0.584

High

699958

RPAB4
DNA-directed RNA polymerases I, II, and III subunit RPABC4

2

5

Small-scale

0.584

High

699955

SSB2
Ribosome-associated molecular chaperone SSB2

2

5

High-throughput

0.552

High

441338

KAPB
cAMP-dependent protein kinase type 2

1

1

High-throughput

0.536

High

699935

XPO1
Exportin-1

1

3

High-throughput

0.536

High

699966

H3
Histone H3

1

0

High-throughput

0.518

High

699963

GPN1
GPN-loop GTPase 1

2

5

Small-scale

0.514

High

699951

DHE5
NADP-specific glutamate dehydrogenase 2

1

0

High-throughput

0.493

High

699948

T2EA
Transcription initiation factor IIE subunit alpha

1

1

Small-scale

0.481

High

395227

GCN4
General control transcription factor GCN4

1

0

Small-scale

0.480

High

699956

RAD26
DNA repair and recombination protein RAD26

1

0

Small-scale

0.480

High

661143

SPT6
Transcription elongation factor SPT6

1

1

High-throughput

0.479

High

670410

SIS1
Protein SIS1

1

1

High-throughput

0.479

High

699936

RPC3
DNA-directed RNA polymerase III subunit RPC3

1

3

High-throughput

0.479

High

699938

CDC5
Cell cycle serine/threonine-protein kinase CDC5/MSD2

1

2

High-throughput

0.479

High

699959

DSN1
Kinetochore-associated protein DSN1

1

2

High-throughput

0.479

High

699967

SEN1
Helicase SEN1

1

2

High-throughput

0.479

High

699968

MCE1
mRNA-capping enzyme subunit alpha

1

1

High-throughput

0.479

High

699969

TOM1
E3 ubiquitin-protein ligase TOM1

1

3

High-throughput

0.479

High

699970

SCC2
Sister chromatid cohesion protein 2

1

1

High-throughput

0.479

High

699975

CDC73
Cell division control protein 73

1

1

High-throughput

0.479

High

699952

RV167
Reduced viability upon starvation protein 167

1

1

High-throughput

0.470

High

624872

MED15
Mediator of RNA polymerase II transcription subunit 15

1

0

Small-scale

0.460

High

699937

SPT16
FACT complex subunit SPT16

1

0

High-throughput

0.458

High

699940

MED18
Mediator of RNA polymerase II transcription subunit 18

1

0

Small-scale

0.458

High

699947

ELF1
Transcription elongation factor 1

1

0

High-throughput

0.458

High

699973

IWS1
Transcription factor SPN1

1

0

High-throughput

0.458

High

523245

HSP71
Heat shock protein SSA1

1

4

High-throughput

0.445

High

526084

HSP72
Heat shock protein SSA2

1

5

High-throughput

0.445

High

544040

SSB1
Ribosome-associated molecular chaperone SSB1

1

5

High-throughput

0.445

High

699965

APJ1
J domain-containing protein APJ1

1

4

High-throughput

0.445

High

506223

GMT2
Probable GDP-mannose transporter 2

1

1

High-throughput

0.439

High

699971

POB3
FACT complex subunit POB3

1

1

High-throughput

0.437

High

699974

GPN3
GPN-loop GTPase 3

1

5

Small-scale

0.437

High

699939

MED17
Mediator of RNA polymerase II transcription subunit 17

1

0

Small-scale

0.426

High

510260

HSP77
Import motor subunit, mitochondrial

1

1

High-throughput

0.407

High

578968

HSC82
ATP-dependent molecular chaperone HSC82

1

2

High-throughput

0.407

High

699943

HSP78
Heat shock protein 78, mitochondrial

1

1

High-throughput

0.407

High

699953

PFD2
Prefoldin subunit 2

1

3

High-throughput

0.407

High

699957

JEM1
DnaJ-like chaperone JEM1

1

2

High-throughput

0.407

High

699964

PFD4
Prefoldin subunit 4

1

1

High-throughput

0.407

High

699972

HSP7Q
Iron-sulfur cluster biogenesis chaperone, mitochondrial

1

6

High-throughput

0.407

High

699978

HSP42
Heat shock protein 42

1

1

High-throughput

0.407

High

699941

ISC10
Meiosis-specific protein ISC10

1

0

High-throughput

0.282

High

672091

PUF4
Pumilio homology domain family member 4

1

0

High-throughput

0.269

Low

678775

PDP2
[Pyruvate dehydrogenase [acetyl-transferring]]-phosphatase 2, mitochondrial

1

0

High-throughput

0.269

Low

699945

YBF9
Uncharacterized protein YBL059W

1

0

High-throughput

0.269

Low

699949

ALG3
Dol-P-Man:Man(5)GlcNAc(2)-PP-Dol alpha-1,3-mannosyltransferase

1

0

High-throughput

0.269

Low

148864

CET1
mRNA-capping enzyme subunit beta

1

0

High-throughput

0.249

Low


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Last updated: 11Aug2025