Protein: PCDA4
Protocadherin alpha-4 (PCDH-alpha-4)

Gene: PCDA4, PCDHA4
Organism: Homo sapiens
Interactions: 58
UniProt ID: Q9UN74

Gene Ontology (top 5):
GO:0005509 - calcium ion binding
GO:0005886 - plasma membrane
GO:0007155 - cell adhesion
GO:0007156 - homophilic cell adhesion via plasma membrane adhesion molecules
GO:0007399 - nervous system development

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

324063

CSTN1
Calsyntenin-1

2

20

High-throughput

0.811

High

1462161

PCDGK
Protocadherin gamma-C3

2

20

High-throughput

0.811

High

1462189

PCDA7
Protocadherin alpha-7

2

18

High-throughput

0.811

High

1462201

PCDAC
Protocadherin alpha-12

2

19

High-throughput

0.811

High

1462204

PCDA9
Protocadherin alpha-9

2

19

High-throughput

0.811

High

1462206

PCDAB
Protocadherin alpha-11

2

19

High-throughput

0.811

High

1462207

PCDAA
Protocadherin alpha-10

2

19

High-throughput

0.811

High

1462208

PCDA1
Protocadherin alpha-1

2

20

High-throughput

0.811

High

1462203

PCDGA
Protocadherin gamma-A10

1

19

High-throughput

0.691

High

1462205

PCDA8
Protocadherin alpha-8

1

19

High-throughput

0.691

High

1394150

IGS21
Immunoglobulin superfamily member 21

1

0

High-throughput

0.663

High

1070184

NTCP7
Sodium/bile acid cotransporter 7

2

1

High-throughput

0.628

High

1132073

LTBP1
Latent-transforming growth factor beta-binding protein 1

2

10

High-throughput

0.628

High

1448876

CNNM1
Metal transporter CNNM1

2

2

High-throughput

0.628

High

1462097

UBQL1
Ubiquilin-1

2

2

High-throughput

0.606

High

1431144

RBNS5
Rabenosyn-5

2

0

High-throughput

0.602

High

49477

TM223
Transmembrane protein 223

2

5

High-throughput

0.574

High

335343

M3K6
Mitogen-activated protein kinase kinase kinase 6

2

2

High-throughput

0.574

High

1292248

LONP2
Lon protease homolog 2, peroxisomal

2

5

High-throughput

0.574

High

1328002

CISD2
CDGSH iron-sulfur domain-containing protein 2

2

2

High-throughput

0.574

High

1450058

UFSP2
Ufm1-specific protease 2

2

4

High-throughput

0.574

High

1453363

E2AK3
Eukaryotic translation initiation factor 2-alpha kinase 3

2

11

High-throughput

0.574

High

1462209

POMT1
Protein O-mannosyl-transferase 1

2

3

High-throughput

0.574

High

409129

G3P
Glyceraldehyde-3-phosphate dehydrogenase

1

2

High-throughput

0.541

High

907336

APLP1
Amyloid beta precursor like protein 1

1

4

High-throughput

0.541

High

996389

EF1A1
Elongation factor 1-alpha 1

1

1

High-throughput

0.541

High

61154

T131L
Transmembrane protein 131-like

1

2

High-throughput

0.536

High

226914

SGTA
Small glutamine-rich tetratricopeptide repeat-containing protein alpha

1

3

High-throughput

0.523

High

1105190

U119A
Protein unc-119 homolog A

1

0

High-throughput

0.518

High

507425

UBB
Polyubiquitin-B [Cleaved into: Ubiquitin]

1

0

High-throughput

0.513

High

248423

GDF9
Growth/differentiation factor 9

1

3

High-throughput

0.494

High

940474

TCL1A
T-cell leukemia/lymphoma protein 1A

1

1

High-throughput

0.489

High

1124573

MAP7
Ensconsin

1

2

High-throughput

0.489

High

1211220

ODR4
Protein odr-4 homolog

1

5

High-throughput

0.489

High

1416275

CA043
Protein C1orf43

1

4

High-throughput

0.489

High

1450256

TM39A
Transmembrane protein 39A

1

2

High-throughput

0.489

High

1458300

DNM3B
DNA

1

2

High-throughput

0.489

High

1462210

DNM3A
DNA

1

2

High-throughput

0.489

High

139348

UPK2
Uroplakin-2

1

15

High-throughput

0.445

High

255296

HCN1
Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1

1

16

High-throughput

0.445

High

1119368

CAC1C
Voltage-dependent L-type calcium channel subunit alpha-1C

1

20

High-throughput

0.445

High

1400186

SYGP1
Ras/Rap GTPase-activating protein SynGAP

1

6

High-throughput

0.445

High

1212480

LRIF1
Ligand-dependent nuclear receptor-interacting factor 1

1

2

High-throughput

0.439

High

1217225

RIF1
Telomere-associated protein RIF1

1

0

High-throughput

0.438

High

1324113

RHG24
Rho GTPase-activating protein 24

1

1

High-throughput

0.437

High

876288

NMU
Neuromedin-U [Cleaved into: Neuromedin precursor-related peptide 36

2

0

High-throughput

0.328

High

1390490

DDX11
ATP-dependent DNA helicase DDX11

2

0

High-throughput

0.328

High

414846

P53
Cellular tumor antigen p53

1

0

High-throughput

0.282

High

1047885

TLE1
Transducin-like enhancer protein 1

1

0

High-throughput

0.282

High

1139874

SETB1
Histone-lysine N-methyltransferase SETDB1

1

0

High-throughput

0.282

High

1209168

RBM48
RNA-binding protein 48

1

0

High-throughput

0.282

High

1428829

CC90B
Coiled-coil domain-containing protein 90B, mitochondrial

1

0

High-throughput

0.282

High

1461197

ERG28
Ergosterol biosynthetic protein 28 homolog

1

0

High-throughput

0.282

High

1036867

SP4
Transcription factor Sp4

1

0

High-throughput

0.279

Low

1349956

PNPT1
Polyribonucleotide nucleotidyltransferase 1, mitochondrial

1

0

High-throughput

0.279

Low

1460769

APC4
Anaphase-promoting complex subunit 4

1

0

High-throughput

0.279

Low

1462202

COG5
Conserved oligomeric Golgi complex subunit 5

1

0

High-throughput

0.279

Low

869096

TISD
mRNA decay activator protein ZFP36L2

1

0

High-throughput

0.249

Low


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Last updated: 11Aug2025