Protein: CSN9
COP9 signalosome complex subunit 9 (CSN acidic protein) (CSNAP) (Myeloma-overexpressed gene 2 protein)

Gene: CSN9, COPS9
Organism: Homo sapiens
Interactions: 41
UniProt ID: Q8WXC6

Gene Ontology (top 5):
GO:0000785 - chromatin
GO:0005634 - nucleus
GO:0005654 - nucleoplasm
GO:0005737 - cytoplasm
GO:0008180 - COP9 signalosome

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

1360287

CSN3
COP9 signalosome complex subunit 3

6

3

Small-scale

0.737

High

1094386

CSN1
COP9 signalosome complex subunit 1

4

1

Small-scale

0.686

High

1360273

CSN5
COP9 signalosome complex subunit 5

4

0

Small-scale

0.674

High

1272500

CSN6
COP9 signalosome complex subunit 6

4

0

Small-scale

0.672

High

1114962

CUL4A
Cullin-4A

3

5

Small-scale

0.667

High

1115324

CUL4B
Cullin-4B

3

5

Small-scale

0.667

High

1113848

CUL3
Cullin-3

3

5

Small-scale

0.656

High

958681

CSN2
COP9 signalosome complex subunit 2

3

2

Small-scale

0.650

High

1112931

CUL2
Cullin-2

2

5

High-throughput

0.628

High

1112625

CUL1
Cullin-1

2

5

Small-scale

0.611

High

1360280

CSN8
COP9 signalosome complex subunit 8

2

0

Small-scale

0.585

High

943803

UBS3A
Ubiquitin-associated and SH3 domain-containing protein A

2

0

High-throughput

0.580

High

1360271

DDB2
DNA damage-binding protein 2

1

1

High-throughput

0.536

High

1360274

CUL5
Cullin-5

1

5

High-throughput

0.536

High

1360279

KLH15
Kelch-like protein 15

1

1

High-throughput

0.536

High

1360283

BTBD1
BTB/POZ domain-containing protein 1

1

2

High-throughput

0.536

High

1360284

CSN7B
COP9 signalosome complex subunit 7b

1

1

High-throughput

0.536

High

1360285

CSN7A
COP9 signalosome complex subunit 7a

1

1

High-throughput

0.536

High

320834

KLH18
Kelch-like protein 18

1

0

High-throughput

0.513

High

881801

DHYS
Deoxyhypusine synthase

1

0

High-throughput

0.513

High

1081764

FP100
Fanconi anemia core complex-associated protein 100

1

0

High-throughput

0.513

High

1098360

ERCC8
DNA excision repair protein ERCC-8

1

0

High-throughput

0.513

High

1154880

NEDD8
Ubiquitin-like protein NEDD8

1

0

High-throughput

0.513

High

1157832

DDB1
DNA damage-binding protein 1

1

0

High-throughput

0.513

High

1204435

ZRAB3
DNA annealing helicase and endonuclease ZRANB3

1

0

High-throughput

0.513

High

1311082

UBR1
E3 ubiquitin-protein ligase UBR1

1

0

High-throughput

0.513

High

1352246

DCA11
DDB1- and CUL4-associated factor 11

1

0

High-throughput

0.513

High

1360272

APBP2
Amyloid protein-binding protein 2

1

0

High-throughput

0.513

High

1360275

FBX17
F-box only protein 17

1

0

High-throughput

0.513

High

1360276

DCNL1
DCN1-like protein 1

1

0

High-throughput

0.513

High

1360277

LLR1
Leucine-rich repeat protein 1

1

0

High-throughput

0.513

High

1360281

CSN4
COP9 signalosome complex subunit 4

1

0

High-throughput

0.513

High

1360286

FEM1B
Protein fem-1 homolog B

1

0

High-throughput

0.513

High

1360282

BTBD2
BTB/POZ domain-containing protein 2

1

2

High-throughput

0.489

High

983906

RBX1
E3 ubiquitin-protein ligase RBX1

1

0

High-throughput

0.458

High

985785

RL11
Large ribosomal subunit protein uL5

1

0

Small-scale

0.458

High

1359675

PHIP
PH-interacting protein

1

0

Small-scale

0.458

High

561138

GILT
Gamma-interferon-inducible lysosomal thiol reductase

1

0

High-throughput

0.279

Low

1329289

CGAT2
Chondroitin sulfate N-acetylgalactosaminyltransferase 2

1

0

High-throughput

0.279

Low

1360278

SNX27
Sorting nexin-27

1

0

High-throughput

0.279

Low

1327103

FBXL6
F-box/LRR-repeat protein 6

1

0

High-throughput

0.249

Low


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Last updated: 11Aug2025