Protein: PGAP4
GPI-N-acetylgalactosamine transferase PGAP4 (GPI-GalNAc transferase PGAP4) (EC 2.4.1.-) (Post-GPI attachment to proteins GalNAc transferase 4) (Post-GPI attachment to proteins factor 4) (Transmembrane protein 246)

Gene: PGAP4
Organism: Homo sapiens
Interactions: 70
UniProt ID: Q9BRR3

Gene Ontology (top 5):
GO:0000139 - Golgi membrane
GO:0006506 - GPI anchor biosynthetic process
GO:0016757 - glycosyltransferase activity

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

380477

DQA1
HLA class II histocompatibility antigen, DQ alpha 1 chain

2

3

High-throughput

0.611

High

1242910

S39A4
Zinc transporter ZIP4

3

4

High-throughput

0.593

High

1251791

S39A5
Zinc transporter ZIP5

2

4

High-throughput

0.574

High

1411629

GLP3L
Golgi phosphoprotein 3-like

1

1

Small-scale

0.561

High

1411630

GOLP3
Golgi phosphoprotein 3

1

1

Small-scale

0.561

High

1366202

LPAR1
Lysophosphatidic acid receptor 1

2

1

High-throughput

0.558

High

520980

HLAC
HLA class I histocompatibility antigen, C alpha chain

1

1

High-throughput

0.536

High

1239040

NIPA3
Magnesium transporter NIPA3

1

1

High-throughput

0.536

High

1313819

S15A3
Solute carrier family 15 member 3

2

1

High-throughput

0.521

High

1411633

B3GN2
N-acetyllactosaminide beta-1,3-N-acetylglucosaminyltransferase 2

1

0

High-throughput

0.518

High

328987

RTN3
Reticulon-3

1

0

High-throughput

0.513

High

336570

PIGN
GPI ethanolamine phosphate transferase 1

1

0

High-throughput

0.513

High

888973

TMEDA
Transmembrane emp24 domain-containing protein 10

1

0

High-throughput

0.513

High

1350048

SPP2B
Signal peptide peptidase-like 2B

1

0

High-throughput

0.513

High

1411626

TMM59
Transmembrane protein 59

1

0

High-throughput

0.513

High

141860

ACKR2
Atypical chemokine receptor 2

1

1

High-throughput

0.489

High

252712

TSN3
Tetraspanin-3

1

2

High-throughput

0.489

High

349547

TSN15
Tetraspanin-15

1

2

High-throughput

0.489

High

618417

TSN8
Tetraspanin-8

1

2

High-throughput

0.489

High

669284

PTAFR
Platelet-activating factor receptor

1

3

High-throughput

0.489

High

709277

AA2BR
Adenosine receptor A2b

1

1

High-throughput

0.489

High

832446

OPRX
Nociceptin receptor

1

1

High-throughput

0.489

High

833860

P2RY2
P2Y purinoceptor 2

1

3

High-throughput

0.489

High

1197872

S39AC
Zinc transporter ZIP12

1

4

High-throughput

0.489

High

1411636

GPR55
G-protein coupled receptor 55

1

5

High-throughput

0.489

High

627561

DPA1
HLA class II histocompatibility antigen, DP alpha 1 chain

1

3

High-throughput

0.479

High

1411635

ERGI3
Endoplasmic reticulum-Golgi intermediate compartment protein 3

1

0

High-throughput

0.458

High

380129

HLAB
HLA class I histocompatibility antigen, B alpha chain

1

1

High-throughput

0.445

High

1337931

ZNT7
Zinc transporter 7

1

0

High-throughput

0.426

High

104221

F5H1C8
Solute carrier family 15 member 3

1

1

High-throughput

0.407

High

211169

CTR4
Cationic amino acid transporter 4

1

3

High-throughput

0.407

High

722594

CTR1
High affinity cationic amino acid transporter 1

1

3

High-throughput

0.407

High

869660

SC6A8
Sodium- and chloride-dependent creatine transporter 1

1

2

High-throughput

0.407

High

870296

S6A12
Sodium- and chloride-dependent betaine transporter

1

2

High-throughput

0.407

High

870406

S6A11
Sodium- and chloride-dependent GABA transporter 3

1

2

High-throughput

0.407

High

956994

CXCR4
C-X-C chemokine receptor type 4

1

3

High-throughput

0.407

High

1139549

S39AE
Metal cation symporter ZIP14

1

4

High-throughput

0.407

High

1273797

NIPA1
Magnesium transporter NIPA1

1

1

High-throughput

0.407

High

1348628

S7A14
Solute carrier family 7 member 14

1

3

High-throughput

0.407

High

1361296

CTR3
Cationic amino acid transporter 3

1

3

High-throughput

0.407

High

1411627

S39A8
Metal cation symporter ZIP8

1

4

High-throughput

0.407

High

835368

VIPR2
Vasoactive intestinal polypeptide receptor 2

2

0

High-throughput

0.328

High

845116

EAA3
Excitatory amino acid transporter 3

2

0

High-throughput

0.313

High

125048

KCNK1
Potassium channel subfamily K member 1

1

0

High-throughput

0.279

Low

231008

TYOBP
TYRO protein tyrosine kinase-binding protein

1

0

High-throughput

0.279

Low

575698

GPIX
Platelet glycoprotein IX

1

0

High-throughput

0.279

Low

1187415

SHSL1
Protein shisa-like-1

1

0

High-throughput

0.279

Low

1239283

ARMC6
Armadillo repeat-containing protein 6

1

0

High-throughput

0.279

Low

1272375

FA2H
Fatty acid 2-hydroxylase

1

0

High-throughput

0.279

Low

1363217

AQP3
Aquaporin-3

1

0

High-throughput

0.279

Low

1388173

CKLF5
CKLF-like MARVEL transmembrane domain-containing protein 5

1

0

High-throughput

0.279

Low

1391490

BSCL2
Seipin

1

0

High-throughput

0.279

Low

1411628

TTYH1
Protein tweety homolog 1

1

0

High-throughput

0.279

Low

1411632

UD17
UDP-glucuronosyltransferase 1A7

1

0

High-throughput

0.279

Low

1411634

HCST
Hematopoietic cell signal transducer

1

0

High-throughput

0.279

Low

1411637

FBX7
F-box only protein 7

1

0

High-throughput

0.261

Low

218693

TGON2
Trans-Golgi network integral membrane protein 2

1

0

High-throughput

0.249

Low

294252

CD123
Translation initiation factor eIF2 assembly protein

1

0

High-throughput

0.249

Low

828439

PEX19
Peroxisomal biogenesis factor 19

1

0

High-throughput

0.249

Low

850905

KI2S2
Killer cell immunoglobulin-like receptor 2DS2

1

0

High-throughput

0.249

Low

1163806

PTPRO
Receptor-type tyrosine-protein phosphatase O

1

0

High-throughput

0.249

Low

1405346

P2RX4
P2X purinoceptor 4

1

0

High-throughput

0.249

Low

1411631

SG196
Protein O-mannose kinase

1

0

High-throughput

0.249

Low

256129

S19A2
Thiamine transporter 1

1

0

High-throughput

0.232

Low

303277

S22A5
Organic cation/carnitine transporter 2

1

0

High-throughput

0.232

Low

653536

HEMH
Ferrochelatase, mitochondrial

1

0

High-throughput

0.232

Low

1158844

VACHT
Vesicular acetylcholine transporter

1

0

High-throughput

0.232

Low

1211953

S35F1
Solute carrier family 35 member F1

1

0

High-throughput

0.232

Low

1236293

MFSD5
Molybdate-anion transporter

1

0

High-throughput

0.232

Low

1246107

GTR7
Solute carrier family 2, facilitated glucose transporter member 7

1

0

High-throughput

0.232

Low


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Last updated: 11Aug2025