Protein: OST3
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 3 (Oligosaccharyl transferase 34 kDa subunit) (Oligosaccharyl transferase subunit OST3) (Oligosaccharyl transferase subunit gamma)

Gene: OST3
Organism: Saccharomyces cerevisiae S288C
Interactions: 31
UniProt ID: P48439

Gene Ontology (top 5):
GO:0004579 - dolichyl-diphosphooligosaccharide-protein glycotransferase activity
GO:0005783 - endoplasmic reticulum
GO:0005789 - endoplasmic reticulum membrane
GO:0006486 - protein glycosylation
GO:0006487 - protein N-linked glycosylation

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

809023

STT3
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3

7

5

Small-scale

0.954

High

748463

SC61A
Protein transport protein SEC61

3

2

Small-scale

0.828

High

873147

OST4
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit OST4

9

1

Small-scale

0.749

High

835058

OST1
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 1

8

3

Small-scale

0.739

High

754642

OSTB
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit WBP1

5

4

Small-scale

0.705

High

863316

OST2
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit OST2

4

3

Small-scale

0.681

High

873143

OSTD
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit SWP1

3

1

Small-scale

0.643

High

873141

SC6B1
Protein transport protein SBH1

2

2

Small-scale

0.640

High

873145

OST6
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit OST6

1

2

Small-scale

0.618

High

873146

OST5
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit OST5

2

1

Small-scale

0.588

High

828593

VTH2
VPS10 homolog 2

1

1

High-throughput

0.541

High

873142

YN94
Uncharacterized membrane glycoprotein YNR065C

1

1

High-throughput

0.541

High

735850

SAC1
Phosphatidylinositol-3-phosphatase SAC1

1

1

Small-scale

0.479

High

754708

PMT1
Dolichyl-phosphate-mannose--protein mannosyltransferase 1

1

1

Small-scale

0.479

High

796987

PHO88
SRP-independent targeting protein 3

1

0

High-throughput

0.458

High

864772

MPS3
Spindle pole body assembly component MPS3

1

0

High-throughput

0.458

High

873144

ROT1
Protein ROT1

1

0

Small-scale

0.458

High

873148

ENV10
SRP-independent targeting protein 2

1

0

High-throughput

0.458

High

645259

GAS1
1,3-beta-glucanosyltransferase GAS1

1

2

Small-scale

0.457

High

740990

PUB1
Nuclear and cytoplasmic polyadenylated RNA-binding protein PUB1

1

1

High-throughput

0.437

High

510633

HSP77
Import motor subunit, mitochondrial

1

3

High-throughput

0.407

High

524477

HSP71
Heat shock protein SSA1

1

1

High-throughput

0.407

High

545474

SSB1
Ribosome-associated molecular chaperone SSB1

1

1

High-throughput

0.407

High

816294

HSP7E
Heat shock protein SSC3, mitochondrial

1

3

High-throughput

0.407

High

867839

CCC1
Protein CCC1

1

0

High-throughput

0.282

High

579705

HSC82
ATP-dependent molecular chaperone HSC82

1

0

High-throughput

0.249

Low

661539

PSA2
Proteasome subunit alpha type-2

1

0

High-throughput

0.249

Low

670900

SIS1
Protein SIS1

1

0

High-throughput

0.249

Low

707574

TF2B
Transcription initiation factor IIB

1

0

High-throughput

0.249

Low

709866

BMH1
Protein BMH1

1

0

High-throughput

0.249

Low

746881

TIM23
Mitochondrial import inner membrane translocase subunit TIM23

1

0

High-throughput

0.249

Low


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Last updated: 11Aug2025