Protein: CST9L
Cystatin-9-like (Testatin)

Gene: CST9L
Organism: Homo sapiens
Interactions: 78
UniProt ID: Q9H4G1

Gene Ontology (top 5):
GO:0004869 - cysteine-type endopeptidase inhibitor activity
GO:0005615 - extracellular space
GO:0019730 - antimicrobial humoral response

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

1366365

GPI8
GPI-anchor transamidase

1

3

High-throughput

0.618

High

1277409

NT2NA
Notch homolog 2 N-terminal-like protein A

2

7

High-throughput

0.578

High

70480

CRTP1
Cysteine-rich tail protein 1

2

1

High-throughput

0.553

High

1235914

KRA51
Keratin-associated protein 5-1

2

6

High-throughput

0.553

High

133205

QSOX1
Sulfhydryl oxidase 1

1

3

High-throughput

0.536

High

183299

LAMA5
Laminin subunit alpha-5

1

12

High-throughput

0.536

High

1105782

ADAM9
Disintegrin and metalloproteinase domain-containing protein 9

1

4

High-throughput

0.536

High

1179145

TECT1
Tectonic-1

1

2

High-throughput

0.536

High

1369110

PCSK5
Proprotein convertase subtilisin/kexin type 5

1

4

High-throughput

0.536

High

1369568

SEM4D
Semaphorin-4D

1

4

High-throughput

0.536

High

1433666

WNT16
Protein Wnt-16

1

1

High-throughput

0.536

High

950891

KR109
Keratin-associated protein 10-9

1

5

High-throughput

0.523

High

1025953

NDP
Norrin

1

0

High-throughput

0.513

High

907000

CCR5
C-C chemokine receptor type 5

1

3

High-throughput

0.494

High

269705

PLXA2
Plexin-A2

1

4

High-throughput

0.489

High

292225

S2512
Electrogenic aspartate/glutamate antiporter SLC25A12, mitochondrial

1

6

High-throughput

0.489

High

337283

ATS2
A disintegrin and metalloproteinase with thrombospondin motifs 2

1

5

High-throughput

0.489

High

338743

NPTXR
Neuronal pentraxin receptor

1

2

High-throughput

0.489

High

448068

ITAV
Integrin alpha-V

1

4

High-throughput

0.489

High

552079

ADT1
ADP/ATP translocase 1

1

3

High-throughput

0.489

High

565707

AT1A3
Sodium/potassium-transporting ATPase subunit alpha-3

1

2

High-throughput

0.489

High

586387

ARSB
Arylsulfatase B

1

4

High-throughput

0.489

High

630633

RAB3B
Ras-related protein Rab-3B

1

1

High-throughput

0.489

High

648674

FGFR4
Fibroblast growth factor receptor 4

1

4

High-throughput

0.489

High

788547

SCNNA
Epithelial sodium channel subunit alpha

1

1

High-throughput

0.489

High

845136

EAA3
Excitatory amino acid transporter 3

1

1

High-throughput

0.489

High

857561

NOTC1
Neurogenic locus notch homolog protein 1

1

1

High-throughput

0.489

High

907937

PLXA3
Plexin-A3

1

5

High-throughput

0.489

High

931896

EPHA5
Ephrin type-A receptor 5

1

5

High-throughput

0.489

High

997136

TBA4A
Tubulin alpha-4A chain

1

6

High-throughput

0.489

High

1083205

GALT1
Polypeptide N-acetylgalactosaminyltransferase 1

1

3

High-throughput

0.489

High

1116739

ITA7
Integrin alpha-7 [Cleaved into: Integrin alpha-7 heavy chain; Integrin alpha-7 light chain; Integrin alpha-7 70 kDa form]

1

4

High-throughput

0.489

High

1144666

PTPRK
Receptor-type tyrosine-protein phosphatase kappa

1

2

High-throughput

0.489

High

1154259

NPTX1
Neuronal pentraxin-1

1

2

High-throughput

0.489

High

1163339

LAMA3
Laminin subunit alpha-3

1

12

High-throughput

0.489

High

1175843

T132A
Transmembrane protein 132A

1

1

High-throughput

0.489

High

1191980

TBB8
Tubulin beta-8 chain

1

8

High-throughput

0.489

High

1248520

SUSD1
Sushi domain-containing protein 1

1

8

High-throughput

0.489

High

1248927

ARSK
Arylsulfatase K

1

4

High-throughput

0.489

High

1331316

S2529
Mitochondrial basic amino acids transporter

1

4

High-throughput

0.489

High

1336131

GLT11
Polypeptide N-acetylgalactosaminyltransferase 11

1

3

High-throughput

0.489

High

1337068

CNNM3
Metal transporter CNNM3

1

1

High-throughput

0.489

High

1396599

NAR5
Ecto-ADP-ribosyltransferase 5

1

1

High-throughput

0.489

High

1419493

CNTP3
Contactin-associated protein-like 3

1

9

High-throughput

0.489

High

1431729

SEM6A
Semaphorin-6A

1

4

High-throughput

0.489

High

1432916

SEM6B
Semaphorin-6B

1

4

High-throughput

0.489

High

1433662

TPC
Mitochondrial thiamine pyrophosphate carrier

1

6

High-throughput

0.489

High

1433664

B3GN2
N-acetyllactosaminide beta-1,3-N-acetylglucosaminyltransferase 2

1

4

High-throughput

0.489

High

1433669

ADA21
Disintegrin and metalloproteinase domain-containing protein 21

1

5

High-throughput

0.489

High

1433670

DD19B
ATP-dependent RNA helicase DDX19B

1

2

High-throughput

0.489

High

1433672

AGRG1
Adhesion G-protein coupled receptor G1

1

3

High-throughput

0.489

High

1433673

FKBP7
Peptidyl-prolyl cis-trans isomerase FKBP7

1

4

High-throughput

0.489

High

517111

NT2NC
Notch homolog 2 N-terminal-like protein C

1

7

High-throughput

0.470

High

631

NBPFJ
NBPF family member NBPF19

1

2

High-throughput

0.439

High

950005

KR103
Keratin-associated protein 10-3

1

5

High-throughput

0.439

High

1135103

CUL7
Cullin-7

1

1

High-throughput

0.437

High

1399249

CNT3B
Contactin-associated protein-like 3B

1

8

High-throughput

0.407

High

1433663

SEM4B
Semaphorin-4B

1

4

High-throughput

0.407

High

71526

MEI4
Meiosis-specific protein MEI4

2

0

High-throughput

0.316

High

183966

S22A2
Solute carrier family 22 member 2

1

0

High-throughput

0.282

High

1433665

TAB2
TGF-beta-activated kinase 1 and MAP3K7-binding protein 2

1

0

High-throughput

0.282

High

230842

EXTL3
Exostosin-like 3

1

0

High-throughput

0.279

Low

238613

RAD21
Double-strand-break repair protein rad21 homolog

1

0

High-throughput

0.279

Low

317477

GFPT2
Glutamine--fructose-6-phosphate aminotransferase [isomerizing] 2

1

0

High-throughput

0.279

Low

327120

NXPH4
Neurexophilin-4

1

0

High-throughput

0.279

Low

885508

MA2A2
Alpha-mannosidase 2x

1

0

High-throughput

0.279

Low

947846

TPPP2
Tubulin polymerization-promoting protein family member 2

1

0

High-throughput

0.279

Low

1143677

NOMO1
BOS complex subunit NOMO1

1

0

High-throughput

0.279

Low

1208462

EOGT
EGF domain-specific O-linked N-acetylglucosamine transferase

1

0

High-throughput

0.279

Low

1325549

LARG2
Xylosyl- and glucuronyltransferase LARGE2

1

0

High-throughput

0.279

Low

1381623

NXPE3
NXPE family member 3

1

0

High-throughput

0.279

Low

1387193

RB39B
Ras-related protein Rab-39B

1

0

High-throughput

0.279

Low

1388098

ERLEC
Endoplasmic reticulum lectin 1

1

0

High-throughput

0.279

Low

1394408

NGLY1
Peptide-N(4)-(N-acetyl-beta-glucosaminyl)asparagine amidase

1

0

High-throughput

0.279

Low

1416291

SFXN3
Sideroflexin-3

1

0

High-throughput

0.279

Low

1433667

CEIP2
Cell surface hyaluronidase CEMIP2

1

0

High-throughput

0.279

Low

1433668

GGT7
Glutathione hydrolase 7

1

0

High-throughput

0.279

Low

1433671

SMC3
Structural maintenance of chromosomes protein 3

1

0

High-throughput

0.279

Low


Service provided by Combinatics, Japan

Last updated: 11Aug2025