Protein: OST4
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 4

Gene: OST4
Organism: Homo sapiens
Interactions: 110
UniProt ID: P0C6T2

Gene Ontology (top 5):
GO:0005789 - endoplasmic reticulum membrane
GO:0006487 - protein N-linked glycosylation
GO:0008250 - oligosaccharyltransferase complex
GO:0018279 - protein N-linked glycosylation via asparagine
GO:0160226 - oligosaccharyltransferase complex A

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

505142

STT3A
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3A

2

1

Small-scale

0.789

High

505183

STT3B
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B

2

1

Small-scale

0.789

High

417224

RPN1
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 1

2

0

Small-scale

0.585

High

332835

VAPB
Vesicle-associated membrane protein-associated protein B/C

1

1

High-throughput

0.536

High

338408

SC24B
Protein transport protein Sec24B

1

1

High-throughput

0.536

High

505149

RAB2A
Ras-related protein Rab-2A

1

1

High-throughput

0.536

High

505151

RAB10
Ras-related protein Rab-10

1

1

High-throughput

0.536

High

505156

TUSC3
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit TUSC3

1

1

High-throughput

0.536

High

505163

SC23B
Protein transport protein Sec23B

1

1

High-throughput

0.536

High

505199

MAGT1
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit MAGT1

1

1

High-throughput

0.536

High

505205

VAPA
Vesicle-associated membrane protein-associated protein A

1

1

High-throughput

0.536

High

144398

SCD
Stearoyl-CoA desaturase

1

0

High-throughput

0.513

High

184798

SPTC1
Serine palmitoyltransferase 1

1

0

High-throughput

0.513

High

215488

EMC8
ER membrane protein complex subunit 8

1

0

High-throughput

0.513

High

319333

UFL1
E3 UFM1-protein ligase 1

1

0

High-throughput

0.513

High

357904

CYB5
Cytochrome b5

1

0

High-throughput

0.513

High

417903

RPN2
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 2

1

0

High-throughput

0.513

High

505127

ENPL
Endoplasmin

1

0

High-throughput

0.513

High

505129

NCPR
NADPH--cytochrome P450 reductase

1

0

High-throughput

0.513

High

505132

CALX
Calnexin

1

0

High-throughput

0.513

High

505133

HMOX2
Heme oxygenase 2

1

0

High-throughput

0.513

High

505135

COPB2
Coatomer subunit beta'

1

0

High-throughput

0.513

High

505136

OST48
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase 48 kDa subunit

1

0

High-throughput

0.513

High

505139

NSG1
Neuronal vesicle trafficking-associated protein 1

1

0

High-throughput

0.513

High

505141

SSRA
Translocon-associated protein subunit alpha

1

0

High-throughput

0.513

High

505152

DAD1
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit DAD1

1

0

High-throughput

0.513

High

505155

ASPH
Aspartyl/asparaginyl beta-hydroxylase

1

0

High-throughput

0.513

High

505159

MLEC
Malectin

1

0

High-throughput

0.513

High

505160

FKBP8
Peptidyl-prolyl cis-trans isomerase FKBP8

1

0

High-throughput

0.513

High

505161

EMC2
ER membrane protein complex subunit 2

1

0

High-throughput

0.513

High

505177

VRK2
Serine/threonine-protein kinase VRK2

1

0

High-throughput

0.513

High

505180

KTAP2
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit KCP2

1

0

High-throughput

0.513

High

505190

CCD47
PAT complex subunit CCDC47

1

0

High-throughput

0.513

High

505195

TMM43
Transmembrane protein 43

1

0

High-throughput

0.513

High

505196

TMED9
Transmembrane emp24 domain-containing protein 9

1

0

High-throughput

0.513

High

505201

OSTC
Oligosaccharyltransferase complex subunit OSTC

1

0

High-throughput

0.513

High

505203

DJB12
DnaJ homolog subfamily B member 12

1

0

High-throughput

0.513

High

505204

E2AK3
Eukaryotic translation initiation factor 2-alpha kinase 3

1

0

High-throughput

0.513

High

505208

SSRG
Translocon-associated protein subunit gamma

1

0

High-throughput

0.513

High

224079

BUB1
Mitotic checkpoint serine/threonine-protein kinase BUB1

1

1

High-throughput

0.489

High

251698

BUB1B
Mitotic checkpoint serine/threonine-protein kinase BUB1 beta

1

1

High-throughput

0.489

High

274083

ANR17
Ankyrin repeat domain-containing protein 17

1

1

High-throughput

0.489

High

331953

KAT7
Histone acetyltransferase KAT7

1

1

High-throughput

0.489

High

505131

RAB3A
Ras-related protein Rab-3A

1

2

High-throughput

0.489

High

505146

RAB7A
Ras-related protein Rab-7a

1

2

High-throughput

0.489

High

505178

ANKH1
Ankyrin repeat and KH domain-containing protein 1

1

1

High-throughput

0.489

High

505188

KAT6A
Histone acetyltransferase KAT6A

1

1

High-throughput

0.489

High

505192

TONSL
Tonsoku-like protein

1

3

High-throughput

0.489

High

505193

BARD1
BRCA1-associated RING domain protein 1

1

3

High-throughput

0.489

High

505200

TNR6C
Trinucleotide repeat-containing gene 6C protein

1

1

High-throughput

0.489

High

505170

ATLA3
Atlastin-3

1

1

High-throughput

0.479

High

505138

LAP2B
Lamina-associated polypeptide 2, isoforms beta/gamma

1

1

High-throughput

0.437

High

505145

RAB5C
Ras-related protein Rab-5C

1

2

High-throughput

0.437

High

505194

RBM4B
RNA-binding protein 4B

1

2

High-throughput

0.437

High

104315

F5H6I7
Atlastin GTPase 3

1

1

High-throughput

0.407

High

505137

LAP2A
Lamina-associated polypeptide 2, isoform alpha

1

1

High-throughput

0.407

High

505150

RAB5B
Ras-related protein Rab-5B

1

3

High-throughput

0.407

High

505198

RBM4
RNA-binding protein 4

1

2

High-throughput

0.407

High

65865

MSGN1
Mesogenin-1

2

0

High-throughput

0.316

High

505207

UBQL1
Ubiquilin-1

2

0

High-throughput

0.316

High

126970

APBB1
Amyloid beta precursor protein binding family B member 1

1

0

High-throughput

0.279

Low

129964

PGRC1
Membrane-associated progesterone receptor component 1

1

0

High-throughput

0.279

Low

166486

BACH1
Transcription regulator protein BACH1

1

0

High-throughput

0.279

Low

251504

CCNT1
Cyclin-T1

1

0

High-throughput

0.279

Low

280991

TACC1
Transforming acidic coiled-coil-containing protein 1

1

0

High-throughput

0.279

Low

297415

PIAS1
E3 SUMO-protein ligase PIAS1

1

0

High-throughput

0.279

Low

505126

MYBB
Myb-related protein B

1

0

High-throughput

0.279

Low

505128

PLAK
Junction plakoglobin

1

0

High-throughput

0.279

Low

505130

HXB6
Homeobox protein Hox-B6

1

0

High-throughput

0.279

Low

505134

TIA1
Cytotoxic granule associated RNA binding protein TIA1

1

0

High-throughput

0.279

Low

505143

EMD
Emerin

1

0

High-throughput

0.279

Low

505144

CDK9
Cyclin-dependent kinase 9

1

0

High-throughput

0.279

Low

505147

SSRD
Translocon-associated protein subunit delta

1

0

High-throughput

0.279

Low

505148

RRP1
Ribosomal RNA processing protein 1 homolog A

1

0

High-throughput

0.279

Low

505153

RB11A
Ras-related protein Rab-11A

1

0

High-throughput

0.279

Low

505154

REL
Proto-oncogene c-Rel

1

0

High-throughput

0.279

Low

505157

PICAL
Phosphatidylinositol-binding clathrin assembly protein

1

0

High-throughput

0.279

Low

505158

DSG2
Desmoglein-2

1

0

High-throughput

0.279

Low

505162

CNN3
Calponin-3

1

0

High-throughput

0.279

Low

505164

SIX1
Homeobox protein SIX1

1

0

High-throughput

0.279

Low

505165

LIN52
Protein lin-52 homolog

1

0

High-throughput

0.279

Low

505166

TOIP1
Torsin-1A-interacting protein 1

1

0

High-throughput

0.279

Low

505167

ZC3HD
Zinc finger CCCH domain-containing protein 13

1

0

High-throughput

0.279

Low

505168

RBM26
RNA-binding protein 26

1

0

High-throughput

0.279

Low

505169

RIF1
Telomere-associated protein RIF1

1

0

High-throughput

0.279

Low

505171

LIN54
Protein lin-54 homolog

1

0

High-throughput

0.279

Low

505172

GGYF2
GRB10-interacting GYF protein 2

1

0

High-throughput

0.279

Low

505173

NFXL1
NF-X1-type zinc finger protein NFXL1

1

0

High-throughput

0.279

Low

505174

SPT6H
Transcription elongation factor SPT6

1

0

High-throughput

0.279

Low

505175

ZCCHV
Zinc finger CCCH-type antiviral protein 1

1

0

High-throughput

0.279

Low

505176

YTHD3
YTH domain-containing family protein 3

1

0

High-throughput

0.279

Low

505179

RNF10
E3 ubiquitin-protein ligase RNF10

1

0

High-throughput

0.279

Low

505181

PACRL
PACRG-like protein

1

0

High-throughput

0.279

Low

505182

F241A
Uncharacterized protein FAM241A

1

0

High-throughput

0.279

Low

505184

BRK1
Protein BRICK1

1

0

High-throughput

0.279

Low

505185

NUDC2
NudC domain-containing protein 2

1

0

High-throughput

0.279

Low

505186

CKAP2
Cytoskeleton-associated protein 2

1

0

High-throughput

0.279

Low

505187

SMG7
Nonsense-mediated mRNA decay factor SMG7

1

0

High-throughput

0.279

Low

505189

RNF34
E3 ubiquitin-protein ligase RNF34

1

0

High-throughput

0.279

Low

505191

LIN37
Protein lin-37 homolog

1

0

High-throughput

0.279

Low

505197

HIRP3
HIRA-interacting protein 3

1

0

High-throughput

0.279

Low

505202

STAU2
Double-stranded RNA-binding protein Staufen homolog 2

1

0

High-throughput

0.279

Low

505206

PLAL1
Zinc finger protein PLAGL1

1

0

High-throughput

0.279

Low

505209

PHF8
Histone lysine demethylase PHF8

1

0

High-throughput

0.279

Low

505210

FA50B
Protein FAM50B

1

0

High-throughput

0.279

Low

505211

DMXL1
DmX-like protein 1

1

0

High-throughput

0.279

Low

505212

KDM3A
Lysine-specific demethylase 3A

1

0

High-throughput

0.279

Low

505213

WDR7
WD repeat-containing protein 7

1

0

High-throughput

0.279

Low

505214

LAS1L
Ribosomal biogenesis protein LAS1L

1

0

High-throughput

0.279

Low

505140

GLP1R
Glucagon-like peptide 1 receptor

1

0

Small-scale

0.251

Low


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Last updated: 11Aug2025