Protein: POC1
Proteasome chaperone 1 (Proteasome biogenesis-associated protein 1)

Gene: POC1, PBA1
Organism: Saccharomyces cerevisiae S288C
Interactions: 48
UniProt ID: Q05778

Gene Ontology (top 5):
GO:0005737 - cytoplasm
GO:0043248 - proteasome assembly

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

780003

POC2
Proteasome assembly chaperone 2

6

0

Small-scale

0.896

High

797538

UMP1
Proteasome maturation factor UMP1

5

0

Small-scale

0.869

High

645206

PSB4
Proteasome subunit beta type-4

6

3

Small-scale

0.836

High

661560

PSA2
Proteasome subunit alpha type-2

3

1

High-throughput

0.751

High

721330

PSB7
Proteasome subunit beta type-7

1

1

High-throughput

0.618

High

580077

HSC82
ATP-dependent molecular chaperone HSC82

2

0

High-throughput

0.563

High

636608

PSA7
Probable proteasome subunit alpha type-7

1

1

High-throughput

0.553

High

636687

PSA1
Proteasome subunit alpha type-1

1

1

High-throughput

0.553

High

662058

PSB6
Proteasome subunit beta type-6

1

2

High-throughput

0.553

High

668410

PSB2
Proteasome subunit beta type-2

1

2

High-throughput

0.553

High

675263

PSB3
Proteasome subunit beta type-3

1

2

High-throughput

0.553

High

721277

PSB5
Proteasome subunit beta type-5

1

3

High-throughput

0.553

High

735958

PSA5
Proteasome subunit alpha type-5

1

1

High-throughput

0.553

High

800861

PSB1
Proteasome subunit beta type-1

1

3

High-throughput

0.553

High

821989

PSA6
Proteasome subunit alpha type-6

1

1

High-throughput

0.553

High

822020

PSA4
Proteasome subunit alpha type-4

1

1

High-throughput

0.553

High

661437

PSA3
Proteasome subunit alpha type-3

1

0

High-throughput

0.517

High

632920

IF2A
Eukaryotic translation initiation factor 2 subunit alpha

1

0

High-throughput

0.493

High

684536

PDC6
Pyruvate decarboxylase isozyme 3

1

0

High-throughput

0.493

High

796628

EIF3A
Eukaryotic translation initiation factor 3 subunit A

1

0

High-throughput

0.493

High

1052209

LSP1
Sphingolipid long chain base-responsive protein LSP1

1

0

High-throughput

0.493

High

1052211

RMD5
E3 ubiquitin-protein ligase RMD5

1

0

High-throughput

0.493

High

740224

RPN2
26S proteasome regulatory subunit RPN2

1

1

High-throughput

0.479

High

751006

PRS7
26S proteasome regulatory subunit 7 homolog

1

1

High-throughput

0.479

High

803688

RPN1
26S proteasome regulatory subunit RPN1

1

1

High-throughput

0.479

High

822437

PRS4
26S proteasome regulatory subunit 4 homolog

1

1

High-throughput

0.479

High

433295

RL17A
Large ribosomal subunit protein uL22A

1

0

High-throughput

0.458

High

518391

IF4A
ATP-dependent RNA helicase eIF4A

1

0

High-throughput

0.458

High

733599

P5CR
Pyrroline-5-carboxylate reductase

1

0

High-throughput

0.458

High

741118

PUB1
Nuclear and cytoplasmic polyadenylated RNA-binding protein PUB1

1

0

High-throughput

0.458

High

750782

PRS6A
26S proteasome regulatory subunit 6A

1

0

High-throughput

0.458

High

849950

BLM10
Proteasome activator BLM10

1

0

High-throughput

0.458

High

1044968

RPN9
26S proteasome regulatory subunit RPN9

1

0

High-throughput

0.458

High

1052210

POC4
Proteasome chaperone 4

1

0

High-throughput

0.458

High

546292

SSB1
Ribosome-associated molecular chaperone SSB1

1

1

High-throughput

0.445

High

819808

SSB2
Ribosome-associated molecular chaperone SSB2

1

1

High-throughput

0.445

High

1033888

PRS8
26S proteasome regulatory subunit 8 homolog

1

2

High-throughput

0.437

High

676354

MAS5
Mitochondrial protein import protein MAS5

1

0

High-throughput

0.426

High

727314

HS104
Heat shock protein 104

1

0

High-throughput

0.426

High

742402

HSP7F
Heat shock protein homolog SSE1

1

0

High-throughput

0.426

High

804461

SSZ1
Ribosome-associated complex subunit SSZ1

1

0

High-throughput

0.426

High

597557

EF3A
Elongation factor 3A

1

0

High-throughput

0.269

Low

661195

SPT6
Transcription elongation factor SPT6

1

0

High-throughput

0.269

Low

679059

FUB1
Silencing boundary-establishment protein FUB1

1

0

High-throughput

0.249

Low

708197

TF2B
Transcription initiation factor IIB

1

0

High-throughput

0.249

Low

780131

MIA40
Mitochondrial intermembrane space import and assembly protein 40

1

0

High-throughput

0.249

Low

963721

H3
Histone H3

1

0

High-throughput

0.249

Low

1038401

RL21A
Large ribosomal subunit protein eL21A

1

0

High-throughput

0.249

Low


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Last updated: 11Aug2025