Protein: STPAP
Speckle targeted PIP5K1A-regulated poly(A) polymerase (Star-PAP) (EC 2.7.7.19) (RNA-binding motif protein 21) (RNA-binding protein 21) (U6 snRNA-specific terminal uridylyltransferase 1) (U6-TUTase) (EC 2.7.7.52)

Gene: STPAP, TUT1
Organism: Homo sapiens
Interactions: 57
UniProt ID: Q9H6E5

Gene Ontology (top 5):
GO:0003723 - RNA binding
GO:0003730 - mRNA 3'-UTR binding
GO:0005524 - ATP binding
GO:0005654 - nucleoplasm
GO:0005730 - nucleolus

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

1137157

SART3
Spliceosome associated factor 3, U4/U6 recycling protein

5

4

Small-scale

0.925

High

1194379

LARP7
La-related protein 7

4

7

Small-scale

0.881

High

750478

CSTF2
Cleavage stimulation factor subunit 2

2

3

Small-scale

0.754

High

1083439

CPSF1
Cleavage and polyadenylation specificity factor subunit 1

1

1

Small-scale

0.715

High

1434918

UBP15
Ubiquitin carboxyl-terminal hydrolase 15

4

2

Small-scale

0.703

High

209335

PRP4
U4/U6 small nuclear ribonucleoprotein Prp4

4

3

High-throughput

0.697

High

974047

RUXF
Small nuclear ribonucleoprotein F

4

3

High-throughput

0.697

High

431249

LA
Lupus La protein

1

5

High-throughput

0.691

High

1145373

RNPS1
RNA-binding protein with serine-rich domain 1

1

2

High-throughput

0.691

High

974341

LSM6
U6 snRNA-associated Sm-like protein LSm6

3

3

High-throughput

0.662

High

1359920

PRP31
U4/U6 small nuclear ribonucleoprotein Prp31

3

5

High-throughput

0.662

High

1418728

YTHD1
YTH domain-containing family protein 1

3

3

High-throughput

0.662

High

973823

RUXE
Small nuclear ribonucleoprotein E

3

0

High-throughput

0.634

High

991251

RSMN
Small nuclear ribonucleoprotein-associated protein N

2

1

High-throughput

0.628

High

1094629

UBP4
Ubiquitin carboxyl-terminal hydrolase 4

2

2

High-throughput

0.628

High

1434917

CPSF3
Cleavage and polyadenylation specificity factor subunit 3

2

1

Small-scale

0.628

High

1434919

LSM5
U6 snRNA-associated Sm-like protein LSm5

2

5

High-throughput

0.628

High

974198

RUXG
Small nuclear ribonucleoprotein G

2

6

High-throughput

0.611

High

215188

PRPF3
U4/U6 small nuclear ribonucleoprotein Prp3

2

0

High-throughput

0.602

High

574471

RSMB
Small nuclear ribonucleoprotein-associated proteins B and B'

2

1

High-throughput

0.601

High

974282

LSM3
U6 snRNA-associated Sm-like protein LSm3

2

6

High-throughput

0.601

High

1434920

LSM4
U6 snRNA-associated Sm-like protein LSm4

2

2

High-throughput

0.601

High

1434915

CPSF2
Cleavage and polyadenylation specificity factor subunit 2

2

1

Small-scale

0.584

High

1429531

KTBL1
KATNB1-like protein 1

2

0

High-throughput

0.580

High

340779

CPSF4
Cleavage and polyadenylation specificity factor subunit 4

1

3

Small-scale

0.575

High

1407163

PI51A
Phosphatidylinositol 4-phosphate 5-kinase type-1 alpha

1

0

Small-scale

0.568

High

1271860

MEPCE
7SK snRNA methylphosphate capping enzyme

2

0

High-throughput

0.559

High

872748

SOX2
Transcription factor SOX-2

1

3

High-throughput

0.536

High

974666

SMD2
Small nuclear ribonucleoprotein Sm D2

1

2

High-throughput

0.536

High

974845

SMD3
Small nuclear ribonucleoprotein Sm D3

1

2

High-throughput

0.536

High

1309045

ZN547
Zinc finger protein 547

1

1

High-throughput

0.536

High

1368757

SYMPK
Symplekin

1

1

Small-scale

0.536

High

1434912

AGO4
Protein argonaute-4

1

4

High-throughput

0.536

High

1434914

MED17
Mediator of RNA polymerase II transcription subunit 17

1

2

High-throughput

0.536

High

1434916

LSM7
U6 snRNA-associated Sm-like protein LSm7

1

6

High-throughput

0.536

High

156343

G3PT
Glyceraldehyde-3-phosphate dehydrogenase, testis-specific

1

0

High-throughput

0.513

High

1419349

BACH2
Transcription regulator protein BACH2

1

0

High-throughput

0.513

High

1109391

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

1

0

High-throughput

0.480

High

316015

RECQ4
ATP-dependent DNA helicase Q4

1

4

High-throughput

0.479

High

321667

PRP6
Pre-mRNA-processing factor 6

1

4

High-throughput

0.479

High

447445

NPM
Nucleophosmin

1

3

Small-scale

0.479

High

691433

1433T
14-3-3 protein theta

1

2

High-throughput

0.479

High

972000

1433E
14-3-3 protein epsilon

1

2

Small-scale

0.479

High

1255547

TRI67
Tripartite motif-containing protein 67

1

3

High-throughput

0.479

High

1280500

HUWE1
E3 ubiquitin-protein ligase HUWE1

1

2

High-throughput

0.479

High

663765

IL32
Interleukin-32

1

0

Small-scale

0.460

High

1158545

CDC37
Hsp90 co-chaperone Cdc37

1

0

High-throughput

0.458

High

1434913

FBX6
F-box only protein 6

1

0

High-throughput

0.458

High

71616

RUXGL
Putative small nuclear ribonucleoprotein G-like protein 15

1

6

High-throughput

0.445

High

990737

1433Z
14-3-3 protein zeta/delta

1

3

High-throughput

0.445

High

1380163

FBXW7
F-box/WD repeat-containing protein 7

1

1

High-throughput

0.445

High

1065029

FGL1
Fibrinogen-like protein 1

3

0

High-throughput

0.347

High

1289039

CATAC
Centrosomal AT-AC splicing factor

3

0

High-throughput

0.347

High

939533

FCGRN
IgG receptor FcRn large subunit p51

1

0

High-throughput

0.279

Low

1434911

BEX1
Protein BEX1

1

0

High-throughput

0.279

Low

106658

APRIO
Alternative prion protein

1

0

High-throughput

0.249

Low

1434910

GREM2
Gremlin-2

1

0

High-throughput

0.232

Low


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Last updated: 11Aug2025