Protein: MCA9
Metacaspase-9 (AtMC9) (EC 3.4.22.-) [Cleaved into: Metacaspase-9 subunit p20; Metacaspase-9 subunit p10 (Metacaspase 2f) (AtMCP2f)]

Gene: MCA9, AMC9
Organism: Arabidopsis thaliana
Interactions: 73
UniProt ID: Q9FYE1

Gene Ontology (top 5):
GO:0004197 - cysteine-type endopeptidase activity
GO:0006508 - proteolysis
GO:0008234 - cysteine-type peptidase activity
GO:0048046 - apoplast

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

1427527

MCA9
Metacaspase-9

1

4

Small-scale

0.647

High

146181

HS904
Heat shock protein 90-4

1

2

Small-scale

0.501

High

607868

EFTU
Elongation factor Tu, chloroplastic

1

2

Small-scale

0.501

High

636520

CPNA1
Chaperonin 60 subunit alpha 1, chloroplastic

1

4

Small-scale

0.501

High

636529

CPNB1
Chaperonin 60 subunit beta 1, chloroplastic

1

4

Small-scale

0.501

High

1192340

PSBQ2
Oxygen-evolving enhancer protein 3-2, chloroplastic

1

0

Small-scale

0.480

High

1427230

MAP1B
Methionine aminopeptidase 1B, chloroplastic

1

0

Small-scale

0.480

High

1427545

CLPR1
ATP-dependent Clp protease proteolytic subunit-related protein 1, chloroplastic

1

0

Small-scale

0.480

High

1427547

Q9ZPZ4
T31J12.3 protein

1

0

Small-scale

0.480

High

101633

F4J573
Late embryogenesis abundant protein

1

4

Small-scale

0.457

High

235308

RS61
Small ribosomal subunit protein eS6z

1

1

Small-scale

0.457

High

636510

PORB
Protochlorophyllide reductase B, chloroplastic

1

1

Small-scale

0.457

High

709201

CH60A
Chaperonin CPN60, mitochondrial

1

4

Small-scale

0.457

High

902760

RS62
Small ribosomal subunit protein eS6y

1

1

Small-scale

0.457

High

930113

CD48A
Cell division control protein 48 homolog A

1

1

Small-scale

0.457

High

1041967

RBG7
Glycine-rich RNA-binding protein 7

1

1

Small-scale

0.457

High

1041977

RBG8
Glycine-rich RNA-binding protein 8

1

1

Small-scale

0.457

High

1064667

RSSA1
Small ribosomal subunit protein uS2z

1

1

Small-scale

0.457

High

1192662

PORA
Protochlorophyllide reductase A, chloroplastic

1

1

Small-scale

0.457

High

1355585

PFPB1
Pyrophosphate--fructose 6-phosphate 1-phosphotransferase subunit beta 1

1

2

Small-scale

0.457

High

1409050

EF2
Elongation factor 2

1

1

Small-scale

0.457

High

1426131

Q9FKV7
Late embryogenesis abundant protein

1

5

Small-scale

0.457

High

1427531

Y3304
Late embryogenesis abundant protein At3g53040

1

5

Small-scale

0.457

High

1427532

CPNB2
Chaperonin 60 subunit beta 2, chloroplastic

1

4

Small-scale

0.457

High

1427538

Q9SIN3
Late embryogenesis abundant domain-containing protein / LEA domain-containing protein

1

5

Small-scale

0.457

High

1427540

ECP63
Late embryogenesis abundant protein ECP63

1

5

Small-scale

0.457

High

1427541

Q9SUB2
Late embryogenesis abundant protein

1

1

Small-scale

0.457

High

1427542

CLPC2
Chaperone protein ClpC2, chloroplastic

1

1

Small-scale

0.457

High

1427548

EFTM
Elongation factor Tu, mitochondrial

1

2

Small-scale

0.457

High

72306

RP6L2
Protein RRP6-like 2

1

0

Small-scale

0.261

Low

99997

F4I1G1
RNA polymerase II degradation factor-like protein

1

0

Small-scale

0.261

Low

100578

F4I9U2
Nucleolin

1

0

Small-scale

0.261

Low

101238

F4ISU2
Early endosome antigen

1

0

Small-scale

0.261

Low

101636

F4J5I0
SIT4 phosphatase-associated family protein

1

0

Small-scale

0.261

Low

198714

PDI21
Protein disulfide-isomerase like 2-1

1

0

Small-scale

0.261

Low

199400

DCUP2
Uroporphyrinogen decarboxylase 2, chloroplastic

1

0

Small-scale

0.261

Low

307216

TC159
Translocase of chloroplast 159, chloroplastic

1

0

Small-scale

0.261

Low

307760

RL281
Large ribosomal subunit protein eL28z

1

0

Small-scale

0.261

Low

633957

PMA1
ATPase 1, plasma membrane-type

1

0

Small-scale

0.261

Low

840560

14335
14-3-3-like protein GF14 upsilon

1

0

Small-scale

0.261

Low

933560

PSMD4
26S proteasome non-ATPase regulatory subunit 4 homolog

1

0

Small-scale

0.261

Low

948989

RL72
Large ribosomal subunit protein uL30y

1

0

Small-scale

0.261

Low

1020539

GMD2
GDP-mannose 4,6 dehydratase 2

1

0

Small-scale

0.261

Low

1082517

COPG
Coatomer subunit gamma

1

0

Small-scale

0.261

Low

1182418

CSP4
Cold shock domain-containing protein 4

1

0

Small-scale

0.261

Low

1192412

DF192
Defensin-like protein 192

1

0

Small-scale

0.261

Low

1192436

RL241
Large ribosomal subunit protein eL24z

1

0

Small-scale

0.261

Low

1192583

PAI1
N-(5'-phosphoribosyl)anthranilate isomerase 1, chloroplastic

1

0

Small-scale

0.261

Low

1201572

KCS10
3-ketoacyl-CoA synthase 10

1

0

Small-scale

0.261

Low

1275049

PUX5
Plant UBX domain-containing protein 5

1

0

Small-scale

0.261

Low

1319801

RS73
Small ribosomal subunit protein eS7x

1

0

Small-scale

0.261

Low

1320598

PPR3
Pentatricopeptide repeat-containing protein At1g02150

1

0

Small-scale

0.261

Low

1375149

CYT1
Cysteine proteinase inhibitor 1

1

0

Small-scale

0.261

Low

1375466

UBP6
Ubiquitin carboxyl-terminal hydrolase 6

1

0

Small-scale

0.261

Low

1375991

Q94C21
At1g11480/T23J18_15

1

0

Small-scale

0.261

Low

1379621

ACT8
Actin-8

1

0

Small-scale

0.261

Low

1421988

NADE
Glutamine-dependent NAD(+) synthetase

1

0

Small-scale

0.261

Low

1424911

SNX1
Sorting nexin 1

1

0

Small-scale

0.261

Low

1426224

AGD5
ADP-ribosylation factor GTPase-activating protein AGD5

1

0

Small-scale

0.261

Low

1427528

ADRC1
NADPH-dependent aldehyde reductase 1, chloroplastic

1

0

Small-scale

0.261

Low

1427529

Q9LDN8
AT3g15280/K7L4_8

1

0

Small-scale

0.261

Low

1427530

SMP1
SEED MATURATION PROTEIN 1

1

0

Small-scale

0.261

Low

1427533

VCS
Enhancer of mRNA-decapping protein 4

1

0

Small-scale

0.261

Low

1427534

PAP85
Vicilin-like seed storage protein At3g22640

1

0

Small-scale

0.261

Low

1427535

LEA29
Late embryogenesis abundant protein 29

1

0

Small-scale

0.261

Low

1427536

Y3126
Uncharacterized protein At3g61260

1

0

Small-scale

0.261

Low

1427537

Q9M892
AT3g02480/F16B3_11

1

0

Small-scale

0.261

Low

1427539

CISY3
Citrate synthase 3, peroxisomal

1

0

Small-scale

0.261

Low

1427543

PCKA1
Phosphoenolpyruvate carboxykinase

1

0

Small-scale

0.261

Low

1427544

TATB
Sec-independent protein translocase protein TATB, chloroplastic

1

0

Small-scale

0.261

Low

1427546

SYKC
Lysine--tRNA ligase, cytoplasmic

1

0

Small-scale

0.261

Low

1427549

VA721
Vesicle-associated membrane protein 721

1

0

Small-scale

0.261

Low


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Last updated: 11Aug2025