Protein: CBPA4
Carboxypeptidase A4 (EC 3.4.17.-) (Carboxypeptidase A3)

Gene: CBPA4, CPA4
Organism: Homo sapiens
Interactions: 90
UniProt ID: Q9UI42

Gene Ontology (top 5):
GO:0004181 - metallocarboxypeptidase activity
GO:0005615 - extracellular space
GO:0006508 - proteolysis
GO:0008270 - zinc ion binding
GO:0042447 - hormone catabolic process

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

870096

CBPA2
Carboxypeptidase A2

1

3

High-throughput

0.691

High

231170

AIRE
Autoimmune regulator

2

1

High-throughput

0.628

High

1156066

ZIC1
Zinc finger protein ZIC 1

2

1

High-throughput

0.628

High

1331971

ASCC1
Activating signal cointegrator 1 complex subunit 1

3

2

High-throughput

0.609

High

1394281

GMCL1
Germ cell-less protein-like 1

3

1

High-throughput

0.609

High

1446034

RAB9B
Ras-related protein Rab-9B

3

5

High-throughput

0.609

High

1452846

PLK2
Serine/threonine-protein kinase PLK2

3

2

High-throughput

0.609

High

377010

ANF
Natriuretic peptides A

2

0

High-throughput

0.602

High

292307

B3GL1
UDP-GalNAc:beta-1,3-N-acetylgalactosaminyltransferase 1

2

1

High-throughput

0.574

High

391672

FRIH
Ferritin heavy chain

2

2

High-throughput

0.574

High

1288465

SO6A1
Solute carrier organic anion transporter family member 6A1

2

1

High-throughput

0.574

High

1449690

TB22B
TBC1 domain family member 22B

2

1

High-throughput

0.574

High

1125808

GPR18
N-arachidonyl glycine receptor

2

2

High-throughput

0.558

High

213436

ZSC12
Zinc finger and SCAN domain-containing protein 12

2

1

High-throughput

0.552

High

1412192

LXN
Latexin

1

0

Small-scale

0.546

High

420263

IFNA4
Interferon alpha-4

1

2

High-throughput

0.536

High

1275347

APTX
Aprataxin

1

2

High-throughput

0.536

High

358066

ADH1G
Alcohol dehydrogenase 1C

1

0

High-throughput

0.513

High

983731

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

1

0

High-throughput

0.513

High

1411503

OVOL2
Transcription factor Ovo-like 2

1

0

High-throughput

0.513

High

1437576

COE2
Transcription factor COE2

1

0

High-throughput

0.513

High

1447066

TSSP
Thymus-specific serine protease

1

0

High-throughput

0.513

High

1448003

MBNL1
Muscleblind-like protein 1

1

0

High-throughput

0.513

High

1460230

PHF8
Histone lysine demethylase PHF8

1

0

High-throughput

0.513

High

181953

SMAD9
Mothers against decapentaplegic homolog 9

1

1

High-throughput

0.489

High

222395

TSN6
Tetraspanin-6

1

1

High-throughput

0.489

High

292768

RENR
Renin receptor

1

1

High-throughput

0.489

High

568009

PRG2
Bone marrow proteoglycan

1

3

High-throughput

0.489

High

629555

CD22
B-cell receptor CD22

1

1

High-throughput

0.489

High

733460

CCR1
C-C chemokine receptor type 1

1

1

High-throughput

0.489

High

765093

CTNB1
Catenin beta-1

1

2

High-throughput

0.489

High

943153

STX17
Syntaxin-17

1

1

High-throughput

0.489

High

1023908

2ABB
Serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B beta isoform

1

1

High-throughput

0.489

High

1133835

KI3S1
Killer cell immunoglobulin-like receptor 3DS1

1

3

High-throughput

0.489

High

1411132

SH23A
SH2 domain-containing protein 3A

1

1

High-throughput

0.489

High

1414005

MMTA2
Multiple myeloma tumor-associated protein 2

1

1

High-throughput

0.489

High

1448176

ST7
Suppressor of tumorigenicity 7 protein

1

1

High-throughput

0.489

High

302662

RNF8
E3 ubiquitin-protein ligase RNF8

1

3

High-throughput

0.479

High

1255996

TRI67
Tripartite motif-containing protein 67

1

5

High-throughput

0.479

High

1459218

ZRAN1
Ubiquitin thioesterase ZRANB1

1

2

High-throughput

0.479

High

1446996

CYLD
Ubiquitin carboxyl-terminal hydrolase CYLD

1

0

High-throughput

0.458

High

369770

A2MG
Alpha-2-macroglobulin

1

3

High-throughput

0.445

High

1448308

FBX6
F-box only protein 6

1

2

High-throughput

0.445

High

1449987

T106B
Transmembrane protein 106B

1

1

High-throughput

0.437

High

1420120

CHIA
Acidic mammalian chitinase

1

0

High-throughput

0.426

High

261308

NSMA
Sphingomyelin phosphodiesterase 2

1

1

High-throughput

0.407

High

465686

IGF1R
Insulin-like growth factor 1 receptor

1

10

High-throughput

0.407

High

1091204

FOXD4
Forkhead box protein D4

1

4

High-throughput

0.407

High

1227658

A16L1
Autophagy-related protein 16-1

1

2

High-throughput

0.407

High

1452794

UGGG2
UDP-glucose:glycoprotein glucosyltransferase 2

1

1

High-throughput

0.407

High

193638

PDPK1
3-phosphoinositide-dependent protein kinase 1

3

0

High-throughput

0.347

High

943873

CF298
Cilia- and flagella-associated protein 298

3

0

High-throughput

0.347

High

1389655

MITOK
Mitochondrial potassium channel

3

0

High-throughput

0.347

High

1400523

CDK15
Cyclin-dependent kinase 15

2

0

High-throughput

0.328

High

1238849

TECT3
Tectonic-3

2

0

High-throughput

0.318

High

1333721

UBAC2
Ubiquitin-associated domain-containing protein 2

2

0

High-throughput

0.318

High

1124800

NUCG
Endonuclease G, mitochondrial

2

0

High-throughput

0.313

High

231282

NDUS5
NADH dehydrogenase [ubiquinone] iron-sulfur protein 5

1

0

High-throughput

0.279

Low

252550

SEP15
Selenoprotein F

1

0

High-throughput

0.279

Low

282796

E2F6
Transcription factor E2F6

1

0

High-throughput

0.279

Low

325363

OR2A4
Olfactory receptor 2A4

1

0

High-throughput

0.279

Low

552433

ADT3
ADP/ATP translocase 3

1

0

High-throughput

0.279

Low

602847

AATC
Aspartate aminotransferase, cytoplasmic

1

0

High-throughput

0.279

Low

622861

ERCC3
General transcription and DNA repair factor IIH helicase/translocase subunit XPB

1

0

High-throughput

0.279

Low

666927

CCNC
Cyclin-C

1

0

High-throughput

0.279

Low

873872

PCP4
Calmodulin regulator protein PCP4

1

0

High-throughput

0.279

Low

876411

PTSS1
Phosphatidylserine synthase 1

1

0

High-throughput

0.279

Low

943503

DSCR6
Protein ripply3

1

0

High-throughput

0.279

Low

1055641

GABPA
GA-binding protein alpha chain

1

0

High-throughput

0.279

Low

1204684

BEX5
Protein BEX5

1

0

High-throughput

0.279

Low

1290383

MOGT3
2-acylglycerol O-acyltransferase 3

1

0

High-throughput

0.279

Low

1292981

AROS
Active regulator of SIRT1

1

0

High-throughput

0.279

Low

1332527

POC5
Centrosomal protein POC5

1

0

High-throughput

0.279

Low

1349259

MYBPP
MYCBP-associated protein

1

0

High-throughput

0.279

Low

1352397

RHBL4
Rhomboid-related protein 4

1

0

High-throughput

0.279

Low

1380558

PIGT
GPI-anchor transamidase component PIGT

1

0

High-throughput

0.279

Low

1381473

SIA7F
Alpha-N-acetylgalactosaminide alpha-2,6-sialyltransferase 6

1

0

High-throughput

0.279

Low

1385215

SARAF
Store-operated calcium entry-associated regulatory factor

1

0

High-throughput

0.279

Low

1400835

TEFM
Transcription elongation factor, mitochondrial

1

0

High-throughput

0.279

Low

1439404

GALT9
Polypeptide N-acetylgalactosaminyltransferase 9

1

0

High-throughput

0.279

Low

1450770

KLH11
Kelch-like protein 11

1

0

High-throughput

0.279

Low

1453994

GSKIP
GSK3B-interacting protein

1

0

High-throughput

0.279

Low

294495

CD123
Translation initiation factor eIF2 assembly protein

1

0

High-throughput

0.249

Low

373430

MYC
Myc proto-oncogene protein

1

0

High-throughput

0.249

Low

1333363

NHLC2
NHL repeat-containing protein 2

1

0

High-throughput

0.249

Low

406987

THY1
Thy-1 membrane glycoprotein

1

0

High-throughput

0.232

Low

1129904

EPN4
Clathrin interactor 1

1

0

High-throughput

0.232

Low

1214139

DIK1A
Divergent protein kinase domain 1A

1

0

High-throughput

0.232

Low

1359273

CA054
Uncharacterized protein C1orf54

1

0

High-throughput

0.232

Low

1404070

MYCBP
c-Myc-binding protein

1

0

High-throughput

0.232

Low


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Last updated: 11Aug2025