Protein: KRA42
Keratin-associated protein 4-2 (Keratin-associated protein 4.2) (Ultrahigh sulfur keratin-associated protein 4.2)

Gene: KRA42, KRTAP4-2
Organism: Homo sapiens
Interactions: 142
UniProt ID: Q9BYR5

Gene Ontology (top 5):
GO:0005829 - cytosol
GO:0042802 - identical protein binding
GO:0045095 - keratin filament

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

685944

KRA59
Keratin-associated protein 5-9

3

20

High-throughput

0.675

High

950667

KR108
Keratin-associated protein 10-8

3

20

High-throughput

0.675

High

1235853

KRA56
Keratin-associated protein 5-6

3

20

High-throughput

0.675

High

1244067

KR261
Keratin-associated protein 26-1

3

15

High-throughput

0.675

High

1277921

NUFP2
FMR1-interacting protein NUFIP2

3

20

High-throughput

0.675

High

1419029

KRA92
Keratin-associated protein 9-2

3

20

High-throughput

0.675

High

1214329

LCE1B
Late cornified envelope protein 1B

4

20

High-throughput

0.644

High

1348484

LNX1
E3 ubiquitin-protein ligase LNX

4

9

High-throughput

0.637

High

1419102

CRCT1
Cysteine-rich C-terminal protein 1

4

14

High-throughput

0.637

High

950395

KR107
Keratin-associated protein 10-7

2

20

High-throughput

0.633

High

950885

KR109
Keratin-associated protein 10-9

2

20

High-throughput

0.633

High

303186

RGS20
Regulator of G-protein signaling 20

3

8

High-throughput

0.616

High

715954

AQP1
Aquaporin-1

3

10

High-throughput

0.616

High

885399

HXA1
Homeobox protein Hox-A1

3

20

High-throughput

0.616

High

1039811

CREB5
Cyclic AMP-responsive element-binding protein 5

3

20

High-throughput

0.616

High

1212923

LCE3C
Late cornified envelope protein 3C

3

20

High-throughput

0.616

High

1212953

LCE3E
Late cornified envelope protein 3E

3

20

High-throughput

0.616

High

1215124

LCE4A
Late cornified envelope protein 4A

3

20

High-throughput

0.616

High

1215159

LCE2A
Late cornified envelope protein 2A

3

20

High-throughput

0.616

High

1250307

ATL4
ADAMTS-like protein 4

3

20

High-throughput

0.616

High

1419094

CHRD
Chordin

3

19

High-throughput

0.616

High

1235813

KRA57
Keratin-associated protein 5-7

2

20

High-throughput

0.615

High

950125

KR105
Keratin-associated protein 10-5

2

20

High-throughput

0.611

High

336769

BAG4
BAG family molecular chaperone regulator 4

2

3

High-throughput

0.606

High

948384

KR122
Keratin-associated protein 12-2

2

19

High-throughput

0.606

High

949622

KR123
Keratin-associated protein 12-3

2

19

High-throughput

0.606

High

950205

KR106
Keratin-associated protein 10-6

2

20

High-throughput

0.606

High

1193563

CRY2
Cryptochrome-2

2

6

High-throughput

0.606

High

1214286

LCE1A
Late cornified envelope protein 1A

2

20

High-throughput

0.606

High

1235902

KRA53
Keratin-associated protein 5-3

2

20

High-throughput

0.606

High

1257651

KRA52
Keratin-associated protein 5-2

2

13

High-throughput

0.606

High

1307061

KR111
Keratin-associated protein 11-1

2

10

High-throughput

0.606

High

1307452

KRA13
Keratin-associated protein 1-3

2

20

High-throughput

0.606

High

1418378

LCE3D
Late cornified envelope protein 3D

2

20

High-throughput

0.606

High

1418984

KRA98
Keratin-associated protein 9-8

2

20

High-throughput

0.606

High

1419002

KRA93
Keratin-associated protein 9-3

2

20

High-throughput

0.606

High

1419070

KRA45
Keratin-associated protein 4-5

2

20

High-throughput

0.606

High

1419080

KRA44
Keratin-associated protein 4-4

2

20

High-throughput

0.606

High

1419089

KRA42
Keratin-associated protein 4-2

2

20

High-throughput

0.606

High

1419090

KRA33
Keratin-associated protein 3-3

2

20

High-throughput

0.606

High

1419091

KRA15
Keratin-associated protein 1-5

2

20

High-throughput

0.606

High

1238004

Q6NSM0
NR1D2 protein

3

20

High-throughput

0.597

High

949774

KR101
Keratin-associated protein 10-1

2

20

High-throughput

0.584

High

733211

OTX1
Homeobox protein OTX1

2

20

High-throughput

0.578

High

894149

MEOX2
Homeobox protein MOX-2

2

20

High-throughput

0.578

High

1277390

NT2NA
Notch homolog 2 N-terminal-like protein A

2

20

High-throughput

0.578

High

180585

PLS1
Phospholipid scramblase 1

1

11

High-throughput

0.573

High

221396

SPY1
Protein sprouty homolog 1

1

20

High-throughput

0.573

High

225688

AAKB2
5'-AMP-activated protein kinase subunit beta-2

1

16

High-throughput

0.573

High

300233

GLRX3
Glutaredoxin-3

1

20

High-throughput

0.573

High

303347

PDE9A
High affinity cGMP-specific 3',5'-cyclic phosphodiesterase 9A

1

9

High-throughput

0.573

High

930361

AAKG1
5'-AMP-activated protein kinase subunit gamma-1

1

9

High-throughput

0.573

High

954898

PSA6
Proteasome subunit alpha type-6

1

3

High-throughput

0.573

High

1109378

PIN1
Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1

1

6

High-throughput

0.573

High

1118980

BYST
Bystin

1

3

High-throughput

0.573

High

1292078

SPA24
Spermatogenesis-associated protein 24

1

3

High-throughput

0.573

High

1365433

DOCK2
Dedicator of cytokinesis protein 2

1

11

High-throughput

0.573

High

1392890

NTAQ1
Protein N-terminal glutamine amidohydrolase

1

5

High-throughput

0.573

High

1418994

KRA94
Keratin-associated protein 9-4

1

20

High-throughput

0.573

High

1419097

SHFL
Shiftless antiviral inhibitor of ribosomal frameshifting protein

1

18

High-throughput

0.573

High

1419100

NLK
Serine/threonine-protein kinase NLK

1

2

High-throughput

0.573

High

1419105

AMOL2
Angiomotin-like protein 2

1

1

High-throughput

0.573

High

1215062

LCE3A
Late cornified envelope protein 3A

2

20

High-throughput

0.561

High

848070

AL3B1
Aldehyde dehydrogenase family 3 member B1

1

8

High-throughput

0.560

High

70462

CRTP1
Cysteine-rich tail protein 1

2

20

High-throughput

0.553

High

71151

VGLL3
Transcription cofactor vestigial-like protein 3

2

12

High-throughput

0.553

High

159096

LCE2B
Late cornified envelope protein 2B

2

20

High-throughput

0.553

High

592695

ITB4
Integrin beta-4

2

19

High-throughput

0.553

High

604864

HXB9
Homeobox protein Hox-B9

2

20

High-throughput

0.553

High

675663

TYY1
Transcriptional repressor protein YY1

2

20

High-throughput

0.553

High

892241

MCSP
Sperm mitochondrial-associated cysteine-rich protein

2

20

High-throughput

0.553

High

1086991

PO4F2
POU domain, class 4, transcription factor 2

2

19

High-throughput

0.553

High

1213409

AVPI1
Arginine vasopressin-induced protein 1

2

7

High-throughput

0.553

High

1213826

KPRP
Keratinocyte proline-rich protein

2

6

High-throughput

0.553

High

1213924

LCE1C
Late cornified envelope protein 1C

2

20

High-throughput

0.553

High

1213968

LCE1D
Late cornified envelope protein 1D

2

20

High-throughput

0.553

High

1214009

LCE1E
Late cornified envelope protein 1E

2

20

High-throughput

0.553

High

1215090

LCE3B
Late cornified envelope protein 3B

2

20

High-throughput

0.553

High

1215202

LCE2C
Late cornified envelope protein 2C

2

20

High-throughput

0.553

High

1215236

LCE2D
Late cornified envelope protein 2D

2

20

High-throughput

0.553

High

1215957

LCE5A
Late cornified envelope protein 5A

2

20

High-throughput

0.553

High

1232126

VASN
Vasorin

2

20

High-throughput

0.553

High

1330009

CELF5
CUGBP Elav-like family member 5

2

4

High-throughput

0.553

High

1337348

CTSR1
Cation channel sperm-associated protein 1

2

20

High-throughput

0.553

High

1349499

CCER1
Coiled-coil domain-containing glutamate-rich protein 1

2

2

High-throughput

0.553

High

1351663

OXER1
Oxoeicosanoid receptor 1

2

2

High-throughput

0.553

High

1364915

NR4A3
Nuclear receptor subfamily 4 group A member 3

2

12

High-throughput

0.553

High

1399222

GUCD1
Protein GUCD1

2

7

High-throughput

0.553

High

1419096

PLS4
Phospholipid scramblase 4

2

11

High-throughput

0.553

High

181166

AXIN1
Axin-1

1

12

High-throughput

0.541

High

1134844

NR1D2
Nuclear receptor subfamily 1 group D member 2

2

20

High-throughput

0.533

High

208892

ZBT24
Zinc finger and BTB domain-containing protein 24

1

20

High-throughput

0.523

High

600121

ZNF20
Zinc finger protein 20

1

20

High-throughput

0.523

High

789668

HPCL1
Hippocalcin-like protein 1

1

8

High-throughput

0.523

High

1055090

TYRO3
Tyrosine-protein kinase receptor TYRO3

1

6

High-throughput

0.523

High

1133165

LASP1
LIM and SH3 domain protein 1

1

3

High-throughput

0.523

High

1156272

ZN124
Zinc finger protein 124

1

20

High-throughput

0.523

High

1276300

ATG9A
Autophagy-related protein 9A

1

5

High-throughput

0.523

High

1311467

TRI42
Tripartite motif-containing protein 42

1

12

High-throughput

0.523

High

1331098

TEANC
Transcription elongation factor A N-terminal and central domain-containing protein

1

10

High-throughput

0.523

High

1347723

ZN417
Zinc finger protein 417

1

20

High-throughput

0.523

High

1411057

ZN559
Zinc finger protein 559

1

20

High-throughput

0.523

High

1419092

TINAL
Tubulointerstitial nephritis antigen-like

1

2

High-throughput

0.523

High

1419093

3BHS7
3 beta-hydroxysteroid dehydrogenase type 7

1

6

High-throughput

0.523

High

1419095

NECT3
Nectin-3

1

20

High-throughput

0.523

High

1419098

ZN581
Zinc finger protein 581

1

20

High-throughput

0.523

High

1419099

DLGP2
Disks large-associated protein 2

1

1

High-throughput

0.523

High

1419101

DIC
Mitochondrial dicarboxylate carrier

1

7

High-throughput

0.523

High

1419103

S23A1
Solute carrier family 23 member 1

1

11

High-throughput

0.523

High

1419104

CHIC2
Cysteine-rich hydrophobic domain-containing protein 2

1

11

High-throughput

0.523

High

950947

KR10B
Keratin-associated protein 10-11

1

20

High-throughput

0.515

High

1419107

V9HW60
Glycine N-methyltransferase

1

2

High-throughput

0.515

High

333835

6PGL
6-phosphogluconolactonase

1

3

High-throughput

0.481

High

949990

KR103
Keratin-associated protein 10-3

1

19

High-throughput

0.481

High

1059737

KRA11
Keratin-associated protein 1-1

1

20

High-throughput

0.481

High

1131931

GNMT
Glycine N-methyltransferase

1

2

High-throughput

0.481

High

1235779

KR511
Keratin-associated protein 5-11

1

20

High-throughput

0.481

High

1235877

KRA54
Keratin-associated protein 5-4

1

20

High-throughput

0.481

High

1357669

PHLA1
Pleckstrin homology-like domain family A member 1

1

20

High-throughput

0.481

High

1366029

ANS1A
Ankyrin repeat and SAM domain-containing protein 1A

1

11

High-throughput

0.481

High

1410095

KR412
Keratin-associated protein 4-12

1

20

High-throughput

0.481

High

1419048

KR411
Keratin-associated protein 4-11

1

20

High-throughput

0.481

High

59966

A2BDE7
PHLDA1 protein

1

20

High-throughput

0.470

High

517105

NT2NC
Notch homolog 2 N-terminal-like protein C

1

20

High-throughput

0.470

High

1065877

Q08AG9
Steroid 21-hydroxylase

1

6

High-throughput

0.470

High

1193626

Q49AR9
ANKS1A protein

1

10

High-throughput

0.470

High

1203544

YV018
Putative uncharacterized protein DKFZp434K191

1

4

High-throughput

0.470

High

1232565

Q6FHY5
MEOX2 protein

1

20

High-throughput

0.470

High

1289411

Q86UY0
Thioredoxin domain-containing protein 5

1

20

High-throughput

0.470

High

624

NBPFJ
NBPF family member NBPF19

1

16

High-throughput

0.439

High

269928

SDC3
Syndecan-3

1

10

High-throughput

0.439

High

475215

CP21A
Steroid 21-hydroxylase

1

6

High-throughput

0.439

High

505765

ZN688
Zinc finger protein 688

1

20

High-throughput

0.439

High

1214055

LCE1F
Late cornified envelope protein 1F

1

20

High-throughput

0.439

High

1334126

TXND5
Thioredoxin domain-containing protein 5

1

20

High-throughput

0.439

High

1340730

SPTA3
Spermatogenesis-associated protein 3

1

11

High-throughput

0.439

High

3358

A0A0S2Z4M1
Axin-1

1

12

High-throughput

0.417

High

3417

A0A0S2Z4U3
Syndecan

1

10

High-throughput

0.417

High

3564

A0A0S2Z5X4
Zinc finger protein 688 isoform 4

1

20

High-throughput

0.417

High

1419106

MAFB
Transcription factor MafB

2

0

High-throughput

0.316

High

1359829

RASF5
Ras association domain-containing protein 5

1

0

High-throughput

0.299

High


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Last updated: 11Aug2025