Protein: RPAB2
DNA-directed RNA polymerases I, II, and III subunit RPABC2 (RNA polymerases I, II, and III subunit ABC2) (ABC23) (DNA-directed RNA polymerases I, II, and III 23 kDa polypeptide)

Gene: RPAB2, RPO26
Organism: Saccharomyces cerevisiae S288C
Interactions: 104
UniProt ID: P20435

Gene Ontology (top 5):
GO:0001172 - RNA-templated transcription
GO:0003677 - DNA binding
GO:0003899 - DNA-directed RNA polymerase activity
GO:0005634 - nucleus
GO:0005654 - nucleoplasm

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

594177

RPB3
DNA-directed RNA polymerase II subunit RPB3

23

4

Small-scale

0.988

High

401881

RPB1
DNA-directed RNA polymerase II subunit RPB1

15

10

Small-scale

0.981

High

534212

RPA1
DNA-directed RNA polymerase I subunit RPA190

9

10

Small-scale

0.972

High

470458

RPB2
DNA-directed RNA polymerase II subunit RPB2

7

8

Small-scale

0.965

High

632248

RPB7
DNA-directed RNA polymerase II subunit RPB7

7

5

Small-scale

0.956

High

632229

RPC2
DNA-directed RNA polymerase III subunit RPC2

6

8

Small-scale

0.940

High

459015

RPAC1
DNA-directed RNA polymerases I and III subunit RPAC1

5

4

High-throughput

0.927

High

402189

RPC1
DNA-directed RNA polymerase III subunit RPC1

5

10

Small-scale

0.922

High

632268

RPA43
DNA-directed RNA polymerase I subunit RPA43

5

1

Small-scale

0.908

High

632250

RPC8
DNA-directed RNA polymerase III subunit RPC8

4

5

High-throughput

0.896

High

632227

RPA2
DNA-directed RNA polymerase I subunit RPA135

2

8

High-throughput

0.776

High

632122

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

10

2

Small-scale

0.749

High

632056

RPB4
DNA-directed RNA polymerase II subunit RPB4

7

1

Small-scale

0.741

High

632235

RPB9
DNA-directed RNA polymerase II subunit RPB9

6

6

Small-scale

0.729

High

632265

T2FB
Transcription initiation factor IIF subunit beta

5

1

Small-scale

0.709

High

632225

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

5

3

Small-scale

0.702

High

632240

RPA12
DNA-directed RNA polymerase I subunit RPA12

4

7

High-throughput

0.694

High

632282

RPA49
DNA-directed RNA polymerase I subunit RPA49

4

1

High-throughput

0.694

High

632256

RPB11
DNA-directed RNA polymerase II subunit RPB11

4

4

Small-scale

0.683

High

632234

SPT5
Transcription elongation factor SPT5

3

1

High-throughput

0.656

High

632239

RPC3
DNA-directed RNA polymerase III subunit RPC3

3

1

High-throughput

0.656

High

632258

RTR1
RNA polymerase II subunit B1 CTD phosphatase RTR1

3

1

Small-scale

0.640

High

632231

RPC4
DNA-directed RNA polymerase III subunit RPC4

3

0

High-throughput

0.634

High

632257

RSP5
E3 ubiquitin-protein ligase RSP5

2

4

High-throughput

0.628

High

632264

T2FA
Transcription initiation factor IIF subunit alpha

3

0

High-throughput

0.628

High

632296

IWR1
RNA polymerase II nuclear localization protein IWR1

3

0

Small-scale

0.628

High

632246

SPT4
Transcription elongation factor SPT4

3

0

High-throughput

0.622

High

632249

TAF14
Transcription initiation factor TFIID subunit 14

3

0

Small-scale

0.622

High

632272

RPA34
DNA-directed RNA polymerase I subunit RPA34

3

0

High-throughput

0.622

High

632295

ASR1
Alcohol-sensitive RING finger protein 1

3

0

Small-scale

0.613

High

632228

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

2

2

High-throughput

0.601

High

632236

RPAC2
DNA-directed RNA polymerases I and III subunit RPAC2

2

4

High-throughput

0.601

High

632245

RPC6
DNA-directed RNA polymerase III subunit RPC6

2

1

High-throughput

0.601

High

632238

TF3B
Transcription factor IIIB 70 kDa subunit

2

3

High-throughput

0.584

High

609173

RPC7
DNA-directed RNA polymerase III subunit RPC7

2

0

High-throughput

0.576

High

632262

DSN1
Kinetochore-associated protein DSN1

2

0

High-throughput

0.559

High

632271

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

2

0

High-throughput

0.559

High

632276

RPA14
DNA-directed RNA polymerase I subunit RPA14

2

0

Small-scale

0.547

High

543783

SSB1
Ribosome-associated molecular chaperone SSB1

2

0

High-throughput

0.528

High

632284

SKI8
Antiviral protein SKI8

1

0

High-throughput

0.518

High

441326

KAPB
cAMP-dependent protein kinase type 2

1

0

High-throughput

0.513

High

632230

KCC2
Calcium/calmodulin-dependent protein kinase II

1

1

High-throughput

0.501

High

632233

KCC1
Calcium/calmodulin-dependent protein kinase I

1

1

High-throughput

0.501

High

632298

RRP44
Exosome complex exonuclease DIS3

1

0

High-throughput

0.493

High

547758

NHP6A
Non-histone chromosomal protein 6A

1

1

Small-scale

0.481

High

547848

NHP6B
Non-histone chromosomal protein 6B

1

1

Small-scale

0.481

High

632259

RAD26
DNA repair and recombination protein RAD26

1

0

Small-scale

0.480

High

381863

H4
Histone H4

1

1

High-throughput

0.479

High

632237

TF2B
Transcription initiation factor IIB

1

3

High-throughput

0.479

High

632244

GSP1
GTP-binding nuclear protein GSP1/CNR1

1

1

High-throughput

0.479

High

632252

RPC5
DNA-directed RNA polymerase III subunit RPC5

1

1

High-throughput

0.479

High

632260

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

1

2

High-throughput

0.479

High

632269

TFC5
Transcription factor TFIIIB component B''

1

1

High-throughput

0.479

High

632275

GPN1
GPN-loop GTPase 1

1

3

High-throughput

0.479

High

632281

SEN1
Helicase SEN1

1

1

High-throughput

0.479

High

632286

TOM1
E3 ubiquitin-protein ligase TOM1

1

4

High-throughput

0.479

High

632288

RPC10
DNA-directed RNA polymerase III subunit RPC10

1

7

High-throughput

0.479

High

632289

VMS1
tRNA endonuclease VMS1

1

1

High-throughput

0.479

High

624863

MED15
Mediator of RNA polymerase II transcription subunit 15

1

0

Small-scale

0.460

High

364320

CDK1
Cyclin-dependent kinase 1

1

0

High-throughput

0.458

High

448280

PDE2
3',5'-cyclic-nucleotide phosphodiesterase 2

1

0

High-throughput

0.458

High

632241

SPT16
FACT complex subunit SPT16

1

0

High-throughput

0.458

High

632243

MED18
Mediator of RNA polymerase II transcription subunit 18

1

0

Small-scale

0.458

High

632251

DEF1
RNA polymerase II degradation factor 1

1

0

High-throughput

0.458

High

632254

REI1
Cytoplasmic 60S subunit biogenesis factor REI1

1

0

High-throughput

0.458

High

632261

MLP2
Protein MLP2

1

0

High-throughput

0.458

High

632267

BUD27
Bud site selection protein 27

1

0

High-throughput

0.458

High

632274

RPC9
DNA-directed RNA polymerase III subunit RPC9

1

0

High-throughput

0.458

High

632278

NRD1
Protein NRD1

1

0

Small-scale

0.458

High

632280

ORC1
Origin recognition complex subunit 1

1

0

High-throughput

0.458

High

632283

MCE1
mRNA-capping enzyme subunit alpha

1

0

High-throughput

0.458

High

632285

HOT1
High-osmolarity-induced transcription protein 1

1

0

Small-scale

0.458

High

632287

DHR1
Probable ATP-dependent RNA helicase DHR1

1

0

High-throughput

0.458

High

632290

POB3
FACT complex subunit POB3

1

0

High-throughput

0.458

High

632291

TFC6
Transcription factor tau 91 kDa subunit

1

0

High-throughput

0.458

High

632292

IWS1
Transcription factor SPN1

1

0

High-throughput

0.458

High

632294

CDC73
Cell division control protein 73

1

0

High-throughput

0.458

High

632299

SGO1
Shugoshin

1

0

High-throughput

0.458

High

632300

CMR1
DNA damage-binding protein CMR1

1

0

High-throughput

0.458

High

386561

TBB
Tubulin beta chain

1

1

High-throughput

0.445

High

592002

VATB
V-type proton ATPase subunit B

1

1

High-throughput

0.445

High

603404

VATA
V-type proton ATPase catalytic subunit A

1

2

High-throughput

0.445

High

619398

MED14
Mediator of RNA polymerase II transcription subunit 14

1

1

Small-scale

0.445

High

632263

LYS14
Lysine biosynthesis regulatory protein LYS14

1

0

High-throughput

0.438

High

632297

SDO1
Ribosome maturation protein SDO1

1

0

High-throughput

0.438

High

632293

GPN3
GPN-loop GTPase 3

1

3

Small-scale

0.437

High

364924

KPYK1
Pyruvate kinase 1

1

0

High-throughput

0.426

High

394227

EF1A
Elongation factor 1-alpha

1

0

High-throughput

0.426

High

403349

PABP
Polyadenylate-binding protein, cytoplasmic and nuclear

1

0

High-throughput

0.426

High

453416

PYR1
Multifunctional protein URA2

1

0

High-throughput

0.426

High

486023

TBA1
Tubulin alpha-1 chain

1

0

High-throughput

0.426

High

632242

MED17
Mediator of RNA polymerase II transcription subunit 17

1

0

Small-scale

0.426

High

632247

HSP78
Heat shock protein 78, mitochondrial

1

0

High-throughput

0.426

High

632255

YHI0
Putative proline--tRNA ligase YHR020W

1

0

High-throughput

0.426

High

632266

MPG1
Mannose-1-phosphate guanyltransferase

1

0

High-throughput

0.426

High

632270

PFD1
Prefoldin subunit 1

1

0

High-throughput

0.426

High

632226

NUP1
Nucleoporin NUP1

1

3

High-throughput

0.417

High

632273

NET1
Nucleolar protein NET1

1

0

High-throughput

0.282

High

632232

CSM1
Monopolin complex subunit CSM1

1

0

High-throughput

0.251

Low

632277

APC10
Anaphase-promoting complex subunit DOC1

1

0

High-throughput

0.251

Low

448509

RHO1
GTP-binding protein RHO1

1

0

High-throughput

0.249

Low

632253

LONM
Lon protease homolog, mitochondrial

1

0

High-throughput

0.249

Low

632279

SAM50
Sorting assembly machinery 50 kDa subunit

1

0

High-throughput

0.249

Low

575379

GFA1
Glutamine--fructose-6-phosphate aminotransferase [isomerizing]

1

0

High-throughput

0.232

Low


Service provided by Combinatics, Japan

Last updated: 11Aug2025