Protein: MPPB
Mitochondrial-processing peptidase subunit beta (EC 3.4.24.64) (Beta-MPP) (Mitochondrial assembly protein 1) (Processing enhancing protein) (PEP)

Gene: MPPB, MAS1
Organism: Saccharomyces cerevisiae S288C
Interactions: 34
UniProt ID: P10507

Gene Ontology (top 5):
GO:0004222 - metalloendopeptidase activity
GO:0005739 - mitochondrion
GO:0005759 - mitochondrial matrix
GO:0006627 - protein processing involved in protein targeting to mitochondrion
GO:0017087 - mitochondrial processing peptidase complex

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

522336

MPPA
Mitochondrial-processing peptidase subunit alpha

6

13

Small-scale

0.954

High

522358

RRP44
Exosome complex exonuclease DIS3

2

1

High-throughput

0.588

High

522347

ISW1
ISWI chromatin-remodeling complex ATPase ISW1

2

1

High-throughput

0.537

High

522348

RRP4
Exosome complex component RRP4

2

2

High-throughput

0.537

High

522342

RIR3
Ribonucleoside-diphosphate reductase large chain 2

1

1

High-throughput

0.536

High

522343

MSH1
DNA mismatch repair protein MSH1, mitochondrial

1

1

High-throughput

0.536

High

522344

EF2
Elongation factor 2

1

2

High-throughput

0.489

High

522354

ARG56
Protein ARG5,6, mitochondrial [Cleaved into: N-acetyl-gamma-glutamyl-phosphate reductase

1

0

Small-scale

0.480

High

382803

RMAR
Small ribosomal subunit protein uS3m

1

2

High-throughput

0.479

High

510118

HSP77
Import motor subunit, mitochondrial

1

6

High-throughput

0.479

High

522338

HSC82
ATP-dependent molecular chaperone HSC82

1

5

High-throughput

0.479

High

522340

ODPA
Pyruvate dehydrogenase E1 component subunit alpha, mitochondrial

1

11

High-throughput

0.479

High

522341

MDHM
Malate dehydrogenase, mitochondrial

1

5

High-throughput

0.479

High

522346

RT05
Small ribosomal subunit protein uS5m

1

2

High-throughput

0.479

High

522349

IF4F1
Eukaryotic initiation factor 4F subunit p150

1

2

High-throughput

0.479

High

522352

ALDH4
Potassium-activated aldehyde dehydrogenase, mitochondrial

1

2

High-throughput

0.479

High

522357

COX20
Cytochrome c oxidase assembly protein COX20, mitochondrial

1

2

High-throughput

0.479

High

453374

PYR1
Multifunctional protein URA2

1

3

High-throughput

0.445

High

522335

HSP72
Heat shock protein SSA2

1

6

High-throughput

0.445

High

522345

SC61A
Protein transport protein SEC61

1

2

High-throughput

0.437

High

522350

NU157
Nucleoporin NUP157

1

3

High-throughput

0.437

High

522360

DBP10
ATP-dependent RNA helicase DBP10

1

4

High-throughput

0.437

High

522361

CMR1
DNA damage-binding protein CMR1

1

3

High-throughput

0.437

High

392093

HSP82
ATP-dependent molecular chaperone HSP82

1

5

High-throughput

0.407

High

522339

VATB
V-type proton ATPase subunit B

1

14

High-throughput

0.407

High

522351

SSB2
Ribosome-associated molecular chaperone SSB2

1

5

High-throughput

0.407

High

522353

RSSA2
Small ribosomal subunit protein uS2B

1

3

High-throughput

0.407

High

522359

SMC4
Structural maintenance of chromosomes protein 4

2

0

High-throughput

0.307

High

432962

RL6B
Large ribosomal subunit protein eL6B

1

0

High-throughput

0.279

Low

522355

SCC2
Sister chromatid cohesion protein 2

1

0

High-throughput

0.249

Low

522356

PDS5
Sister chromatid cohesion protein PDS5

1

0

High-throughput

0.249

Low

434742

RS3
Small ribosomal subunit protein uS3

1

0

High-throughput

0.232

Low

444404

DED1
ATP-dependent RNA helicase DED1

1

0

High-throughput

0.232

Low

522337

RL30
Large ribosomal subunit protein eL30

1

0

High-throughput

0.232

Low


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Last updated: 11Aug2025