Protein: IPB2
Protease B inhibitor 2 (Proteinase inhibitor I(B)2)

Gene: IPB2, PBI2
Organism: Saccharomyces cerevisiae S288C
Interactions: 46
UniProt ID: P0CT04

Gene Ontology (top 5):
GO:0000324 - fungal-type vacuole
GO:0004866 - endopeptidase inhibitor activity
GO:0004867 - serine-type endopeptidase inhibitor activity
GO:0005634 - nucleus
GO:0005737 - cytoplasm

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

510949

SYQ
Glutamine--tRNA ligase

2

0

High-throughput

0.559

High

460934

LTE1
Guanine nucleotide exchange factor LTE1

1

0

High-throughput

0.513

High

510953

SEC18
Vesicular-fusion protein SEC18

1

0

Small-scale

0.480

High

510972

BNI1
Protein BNI1

1

0

High-throughput

0.480

High

460298

SYV
Valine--tRNA ligase, mitochondrial

1

1

High-throughput

0.479

High

481837

SYIC
Isoleucine--tRNA ligase, cytoplasmic

1

1

High-throughput

0.479

High

510988

CMR1
DNA damage-binding protein CMR1

1

0

High-throughput

0.460

High

454369

PHO4
Phosphate system positive regulatory protein PHO4

1

0

High-throughput

0.458

High

479953

PRTB
Cerevisin

1

0

High-throughput

0.458

High

510950

AROF
Phospho-2-dehydro-3-deoxyheptonate aldolase, phenylalanine-inhibited

1

0

High-throughput

0.458

High

510951

KCY
Uridylate kinase

1

0

High-throughput

0.458

High

510954

PYRC
Dihydroorotase

1

0

High-throughput

0.458

High

510955

KIP1
Kinesin-like protein KIP1

1

0

High-throughput

0.458

High

510956

MLS1
Malate synthase 1

1

0

High-throughput

0.458

High

510957

TMT1
Trans-aconitate 3-methyltransferase

1

0

High-throughput

0.458

High

510958

HSP78
Heat shock protein 78, mitochondrial

1

0

High-throughput

0.458

High

510959

URB1
Nucleolar pre-ribosomal-associated protein 1

1

0

High-throughput

0.458

High

510960

CYPD
Peptidyl-prolyl cis-trans isomerase D

1

0

High-throughput

0.458

High

510962

ARA1
D-arabinose dehydrogenase [NAD(P)+] heavy chain

1

0

High-throughput

0.458

High

510963

ECM21
Protein ECM21

1

0

High-throughput

0.458

High

510964

PLPHP
Pyridoxal phosphate homeostasis protein

1

0

High-throughput

0.458

High

510965

SDO1L
Restriction of telomere capping protein 3

1

0

High-throughput

0.458

High

510966

UME6
Transcriptional regulatory protein UME6

1

0

High-throughput

0.458

High

510967

MPT5
Suppressor protein MPT5

1

0

High-throughput

0.458

High

510968

GDI1
Rab GDP-dissociation inhibitor

1

0

High-throughput

0.458

High

510970

RIC1
Guanine nucleotide exchange factor subunit RIC1

1

0

High-throughput

0.458

High

510971

UBP7
Ubiquitin carboxyl-terminal hydrolase 7

1

0

High-throughput

0.458

High

510973

NMD5
Nonsense-mediated mRNA decay protein 5

1

0

High-throughput

0.458

High

510974

YJF5
LOG family protein YJL055W

1

0

High-throughput

0.458

High

510975

MTR4
ATP-dependent RNA helicase DOB1

1

0

High-throughput

0.458

High

510976

BCA2
Branched-chain-amino-acid aminotransferase, cytosolic

1

0

High-throughput

0.458

High

510978

PIL1
Sphingolipid long chain base-responsive protein PIL1

1

0

High-throughput

0.458

High

510979

CA120
CCR4-NOT transcriptional complex subunit CAF120

1

0

High-throughput

0.458

High

510980

RIA1
Ribosome assembly protein 1

1

0

High-throughput

0.458

High

510981

RGC1
Regulator of the glycerol channel 1

1

0

High-throughput

0.458

High

510983

DSE3
Protein DSE3

1

0

High-throughput

0.458

High

510985

RRP6
Exosome complex exonuclease RRP6

1

0

High-throughput

0.458

High

510987

SMT3
Ubiquitin-like protein SMT3

1

0

High-throughput

0.458

High

510977

SKP1
Suppressor of kinetochore protein 1

1

0

High-throughput

0.426

High

510982

RBX1
RING-box protein HRT1

1

0

High-throughput

0.426

High

510984

CDC53
Cell division control protein 53

1

0

High-throughput

0.426

High

360930

CCPR
Cytochrome c peroxidase, mitochondrial

1

0

High-throughput

0.249

Low

510952

PRP16
Pre-mRNA-splicing factor ATP-dependent RNA helicase PRP16

1

0

High-throughput

0.249

Low

510961

PDX3
Pyridoxamine 5'-phosphate oxidase

1

0

High-throughput

0.249

Low

510969

ALDH5
Aldehyde dehydrogenase 5, mitochondrial

1

0

High-throughput

0.249

Low

510986

RDL1
Thiosulfate:glutathione sulfurtransferase

1

0

High-throughput

0.249

Low


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Last updated: 11Aug2025