Protein: 2ABA
Protein phosphatase PP2A regulatory subunit B (Cell division control protein 55) (PR55)

Gene: 2ABA, CDC55
Organism: Saccharomyces cerevisiae S288C
Interactions: 123
UniProt ID: Q00362

Gene Ontology (top 5):
GO:0000159 - protein phosphatase type 2A complex
GO:0000329 - fungal-type vacuole membrane
GO:0000705 - achiasmate meiosis I
GO:0001100 - negative regulation of exit from mitosis
GO:0005634 - nucleus

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

810743

TCPB
T-complex protein 1 subunit beta

3

20

High-throughput

0.861

High

844426

TCPH
T-complex protein 1 subunit eta

3

20

High-throughput

0.852

High

866240

IML1
Vacuolar membrane-associated protein IML1

2

1

High-throughput

0.811

High

554037

TCPA
T-complex protein 1 subunit alpha

3

20

High-throughput

0.770

High

810872

TCPG
T-complex protein 1 subunit gamma

3

20

High-throughput

0.770

High

811134

TCPZ
T-complex protein 1 subunit zeta

3

20

High-throughput

0.770

High

823632

TCPE
T-complex protein 1 subunit epsilon

3

20

High-throughput

0.770

High

382278

H4
Histone H4

2

0

High-throughput

0.770

High

794718

SEA4
SEH-associated protein 4

2

0

High-throughput

0.770

High

865037

TCPQ
T-complex protein 1 subunit theta

2

20

High-throughput

0.767

High

660812

PP2A1
Serine/threonine-protein phosphatase PP2A-1 catalytic subunit

19

20

Small-scale

0.765

High

811013

TCPD
T-complex protein 1 subunit delta

3

20

High-throughput

0.762

High

660876

PP2A2
Serine/threonine-protein phosphatase PP2A-2 catalytic subunit

14

20

Small-scale

0.761

High

726173

2AAA
Protein phosphatase PP2A regulatory subunit A

13

10

Small-scale

0.760

High

932290

ZDS2
Protein ZDS2

9

1

Small-scale

0.757

High

893429

ZDS1
Protein ZDS1

10

1

Small-scale

0.754

High

893283

UBP15
Ubiquitin carboxyl-terminal hydrolase 15

2

0

High-throughput

0.736

High

792433

BOI1
BEM1-interacting protein 1

1

1

High-throughput

0.698

High

816043

BOI2
BEM1-interacting protein 2

1

1

High-throughput

0.698

High

924443

IGO1
mRNA stability protein IGO1

4

1

Small-scale

0.692

High

762860

TOR1
Serine/threonine-protein kinase TOR1

1

4

High-throughput

0.691

High

1024984

MYO5
Myosin-5

3

1

High-throughput

0.666

High

383840

RS17A
Small ribosomal subunit protein eS17A

1

0

High-throughput

0.656

High

626851

HSP60
Heat shock protein 60, mitochondrial

1

16

High-throughput

0.646

High

393174

HSP82
ATP-dependent molecular chaperone HSP82

3

2

High-throughput

0.640

High

524851

HSP71
Heat shock protein SSA1

3

5

High-throughput

0.633

High

545910

SSB1
Ribosome-associated molecular chaperone SSB1

3

5

High-throughput

0.633

High

825295

MOB1
DBF2 kinase activator protein MOB1

1

2

Small-scale

0.618

High

850422

ATG18
Autophagy-related protein 18

2

1

Small-scale

0.611

High

864308

NET1
Nucleolar protein NET1

2

0

Small-scale

0.609

High

919341

RTS3
Protein phosphatase type 2A regulatory subunit RTS3

2

0

High-throughput

0.602

High

1024992

YRA1
RNA annealing protein YRA1

2

2

High-throughput

0.601

High

364690

CDK1
Cyclin-dependent kinase 1

2

6

Small-scale

0.595

High

665845

KPC1
Protein kinase C-like 1

2

7

Small-scale

0.595

High

805566

SET1
Histone-lysine N-methyltransferase, H3 lysine-4 specific

1

0

Small-scale

0.586

High

394820

EF1A
Elongation factor 1-alpha

2

2

High-throughput

0.584

High

734180

EF2
Elongation factor 2

2

1

High-throughput

0.584

High

598901

PFKA1
ATP-dependent 6-phosphofructokinase subunit alpha

2

0

High-throughput

0.576

High

779091

EF1G2
Elongation factor 1-gamma 2

2

0

High-throughput

0.576

High

1024981

ESP1
Separin

2

0

Small-scale

0.576

High

444593

DED1
ATP-dependent RNA helicase DED1

1

2

High-throughput

0.575

High

592435

VATB
V-type proton ATPase subunit B

2

0

High-throughput

0.559

High

510728

HSP77
Import motor subunit, mitochondrial

2

4

High-throughput

0.552

High

742180

HSP7F
Heat shock protein homolog SSE1

2

6

High-throughput

0.552

High

745031

YSC84
Protein YSC84

1

1

High-throughput

0.541

High

779011

MYO3
Myosin-3

1

1

High-throughput

0.541

High

814253

RV167
Reduced viability upon starvation protein 167

1

3

High-throughput

0.541

High

1024987

PIN3
[PSI+] inducibility protein 3

1

3

High-throughput

0.541

High

656844

KC12
Casein kinase I homolog 2

1

3

High-throughput

0.536

High

745980

PP2A4
Serine/threonine-protein phosphatase PP2A-like PPG1

1

19

High-throughput

0.536

High

801895

KSP1
Serine/threonine-protein kinase KSP1

1

7

High-throughput

0.536

High

1024980

BCK1
Serine/threonine-protein kinase BCK1/SLK1/SSP31

1

4

High-throughput

0.536

High

711518

BEM1
Bud emergence protein 1

1

0

High-throughput

0.518

High

805424

BZZ1
Protein BZZ1

1

0

High-throughput

0.518

High

1024985

VID22
Vacuolar import and degradation protein 22

1

0

High-throughput

0.518

High

533526

AK
Aspartokinase

1

0

High-throughput

0.513

High

655502

RS3A2
Small ribosomal subunit protein eS1B

1

0

High-throughput

0.513

High

780978

SPC42
Spindle pole body component SPC42

1

0

High-throughput

0.513

High

801812

YHJ3
Uncharacterized protein YHR033W

1

0

High-throughput

0.513

High

921024

SSU72
RNA polymerase II subunit A C-terminal domain phosphatase SSU72

1

0

High-throughput

0.513

High

448559

RHO1
GTP-binding protein RHO1

1

4

Small-scale

0.501

High

656585

KC11
Casein kinase I homolog 1

1

4

High-throughput

0.501

High

917149

ATG1
Serine/threonine-protein kinase ATG1

1

6

High-throughput

0.501

High

405128

LEU3
3-isopropylmalate dehydrogenase

1

1

High-throughput

0.500

High

416469

HXKA
Hexokinase-1

1

1

High-throughput

0.500

High

481725

HSP73
Heat shock protein SSA3

1

5

High-throughput

0.500

High

645766

HSP74
Heat shock protein SSA4

1

5

High-throughput

0.500

High

676258

MAS5
Mitochondrial protein import protein MAS5

1

1

High-throughput

0.500

High

742923

HSP79
Heat shock protein homolog SSE2

1

7

High-throughput

0.500

High

864739

BBC1
Myosin tail region-interacting protein MTI1

1

3

High-throughput

0.494

High

1024995

YRR1
Zinc finger transcription factor YRR1

1

0

High-throughput

0.493

High

584384

GCN2
eIF-2-alpha kinase GCN2

1

0

High-throughput

0.480

High

822233

SECU
Securin

1

0

Small-scale

0.480

High

367795

ENO1
Enolase 1

1

0

High-throughput

0.479

High

408338

GAL1
Galactokinase

1

0

High-throughput

0.479

High

432351

METE
5-methyltetrahydropteroyltriglutamate--homocysteine methyltransferase

1

0

High-throughput

0.479

High

439400

PDC1
Pyruvate decarboxylase isozyme 1

1

0

High-throughput

0.479

High

531381

METK1
S-adenosylmethionine synthase 1

1

0

High-throughput

0.479

High

550769

INO1
Inositol-3-phosphate synthase

1

0

High-throughput

0.479

High

555129

G6PI
Glucose-6-phosphate isomerase

1

0

High-throughput

0.479

High

1024996

HSP42
Heat shock protein 42

1

0

High-throughput

0.479

High

579901

HSC82
ATP-dependent molecular chaperone HSC82

1

2

High-throughput

0.479

High

632434

CG12
G1/S-specific cyclin CLN2

1

1

Small-scale

0.479

High

679967

CDC48
Cell division control protein 48

1

4

High-throughput

0.479

High

806989

2A5D
Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform

1

1

High-throughput

0.479

High

924412

CBK1
Serine/threonine-protein kinase CBK1

1

9

Small-scale

0.479

High

1024979

CDC14
Tyrosine-protein phosphatase CDC14

1

3

Small-scale

0.479

High

1024982

GIS1
Transcriptional activator/repressor GIS1

1

2

Small-scale

0.479

High

1024988

VAM6
Vacuolar morphogenesis protein 6

1

1

High-throughput

0.479

High

1024993

PSH1
RING finger protein PSH1

1

1

Small-scale

0.479

High

1024997

IGO2
mRNA stability protein IGO2

1

1

Small-scale

0.479

High

1024994

NBP2
NAP1-binding protein 2

1

0

High-throughput

0.460

High

479277

CDC6
Cell division control protein 6

1

0

Small-scale

0.458

High

571039

CHS2
Chitin synthase 2

1

0

Small-scale

0.458

High

597752

APA1
Protein APA1 [Includes: Diadenosine 5',5'''-P1,P4-tetraphosphate phosphorylase 1

1

0

Small-scale

0.458

High

707906

TF2B
Transcription initiation factor IIB

1

0

High-throughput

0.458

High

805523

ORC6
Origin recognition complex subunit 6

1

0

Small-scale

0.458

High

812565

LAA1
AP-1 accessory protein LAA1

1

0

High-throughput

0.458

High

826743

DSN1
Kinetochore-associated protein DSN1

1

0

High-throughput

0.458

High

865476

BFA1
Mitotic check point protein BFA1

1

0

Small-scale

0.458

High

923850

GIS2
Zinc finger protein GIS2

1

0

High-throughput

0.458

High

932804

DNM1
Dynamin-related protein DNM1

1

0

Small-scale

0.458

High

1024983

SCC2
Sister chromatid cohesion protein 2

1

0

High-throughput

0.458

High

1024986

MMS22
E3 ubiquitin-protein ligase substrate receptor MMS22

1

0

High-throughput

0.458

High

1024990

DDC1
DNA damage checkpoint protein 1

1

0

Small-scale

0.458

High

856556

ALDH4
Potassium-activated aldehyde dehydrogenase, mitochondrial

1

1

High-throughput

0.457

High

527431

HSP72
Heat shock protein SSA2

1

5

High-throughput

0.445

High

531849

RL4A
Large ribosomal subunit protein uL4A

1

2

High-throughput

0.445

High

819510

SSB2
Ribosome-associated molecular chaperone SSB2

1

5

High-throughput

0.445

High

885057

RL4B
Large ribosomal subunit protein uL4B

1

2

High-throughput

0.445

High

432668

RL7A
Large ribosomal subunit protein uL30A

1

0

High-throughput

0.426

High

684815

RL5
Large ribosomal subunit protein uL18

1

0

High-throughput

0.426

High

740204

RPN2
26S proteasome regulatory subunit RPN2

1

0

High-throughput

0.426

High

802105

IMDH2
Inosine-5'-monophosphate dehydrogenase 2

1

0

High-throughput

0.426

High

836845

MPG1
Mannose-1-phosphate guanyltransferase

1

0

High-throughput

0.426

High

830077

CIN1
Chromosome instability protein 1

2

0

High-throughput

0.328

High

610187

PDI
Protein disulfide-isomerase

2

0

High-throughput

0.322

High

597535

EF3A
Elongation factor 3A

2

0

High-throughput

0.313

High

1010264

PEX13
Peroxisomal membrane protein PEX13

1

0

High-throughput

0.282

High

438474

EIF3B
Eukaryotic translation initiation factor 3 subunit B

1

0

High-throughput

0.249

Low

757614

TGL1
Sterol esterase TGL1

1

0

Small-scale

0.249

Low

1024989

ZEO1
Protein ZEO1

1

0

Small-scale

0.249

Low

1024991

ATG9
Autophagy-related protein 9

1

0

High-throughput

0.249

Low


Service provided by Combinatics, Japan

Last updated: 11Aug2025