Protein: P4R3B
Serine/threonine-protein phosphatase 4 regulatory subunit 3B (SMEK homolog 2)

Gene: P4R3B, PPP4R3B
Organism: Homo sapiens
Interactions: 57
UniProt ID: Q5MIZ7

Gene Ontology (top 5):
GO:0000785 - chromatin
GO:0005654 - nucleoplasm
GO:0005737 - cytoplasm
GO:0005813 - centrosome
GO:0006094 - gluconeogenesis

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

951987

PP4C
Serine/threonine-protein phosphatase 4 catalytic subunit

9

5

Small-scale

0.754

High

1208200

PP4R2
Serine/threonine-protein phosphatase 4 regulatory subunit 2

7

2

Small-scale

0.749

High

1208181

P4R3A
Serine/threonine-protein phosphatase 4 regulatory subunit 3A

4

1

High-throughput

0.694

High

906064

AL3A2
Aldehyde dehydrogenase family 3 member A2

3

0

High-throughput

0.638

High

262522

MCE1
mRNA-capping enzyme

2

1

High-throughput

0.611

High

281970

MPPB
Mitochondrial-processing peptidase subunit beta

3

1

High-throughput

0.609

High

1156509

CCDC6
Coiled-coil domain-containing protein 6

3

2

High-throughput

0.609

High

1208187

CMTD1
Catechol O-methyltransferase domain-containing protein 1

3

1

High-throughput

0.609

High

1092053

BNIP3
BCL2/adenovirus E1B 19 kDa protein-interacting protein 3

2

0

High-throughput

0.602

High

1208190

PRP16
Pre-mRNA-splicing factor ATP-dependent RNA helicase PRP16

2

1

High-throughput

0.601

High

69786

ZN785
Zinc finger protein 785

2

1

High-throughput

0.574

High

1208185

TAFA3
Chemokine-like protein TAFA-3

2

1

High-throughput

0.574

High

1208195

CRML
Protein cramped-like

2

1

High-throughput

0.574

High

876691

HSP13
Heat shock 70 kDa protein 13

1

2

High-throughput

0.541

High

849185

KSYK
Tyrosine-protein kinase SYK

1

1

High-throughput

0.536

High

1208201

PA2GE
Group IIE secretory phospholipase A2

1

1

High-throughput

0.536

High

1208196

FEZ1
Fasciculation and elongation protein zeta-1

1

0

High-throughput

0.518

High

856727

BAG6
Large proline-rich protein BAG6

1

0

High-throughput

0.513

High

959815

RS3A
Small ribosomal subunit protein eS1

1

0

High-throughput

0.513

High

1022868

EFNB1
Ephrin-B1

1

0

High-throughput

0.513

High

1120187

HNRPD
Heterogeneous nuclear ribonucleoprotein D0

1

0

High-throughput

0.513

High

977514

PP2AB
Serine/threonine-protein phosphatase 2A catalytic subunit beta isoform

1

4

High-throughput

0.489

High

1208179

F120S
Uncharacterized protein FAM120AOS

1

1

High-throughput

0.489

High

1208184

PCAT2
Lysophosphatidylcholine acyltransferase 2

1

1

High-throughput

0.489

High

130495

SPT5H
Transcription elongation factor SPT5

1

2

High-throughput

0.479

High

194224

R113A
E3 ubiquitin-protein ligase RNF113A

1

1

High-throughput

0.479

High

260054

BRD4
Bromodomain-containing protein 4

1

1

High-throughput

0.479

High

886932

CEBPA
CCAAT/enhancer-binding protein alpha

1

1

High-throughput

0.479

High

1208178

P4R3B
Serine/threonine-protein phosphatase 4 regulatory subunit 3B

1

1

High-throughput

0.479

High

1208183

TRI67
Tripartite motif-containing protein 67

1

2

High-throughput

0.479

High

1208189

SIR6
NAD-dependent protein deacylase sirtuin-6

1

2

High-throughput

0.479

High

1208197

PKHA4
Pleckstrin homology domain-containing family A member 4

1

2

High-throughput

0.479

High

879168

NR2C2
Nuclear receptor subfamily 2 group C member 2

1

0

High-throughput

0.458

High

1004668

RNF4
E3 ubiquitin-protein ligase RNF4

1

0

High-throughput

0.458

High

1099984

TIF1B
Transcription intermediary factor 1-beta

1

0

Small-scale

0.458

High

1121247

TRI14
Tripartite motif-containing protein 14

1

0

High-throughput

0.458

High

1208203

PRP19
Pre-mRNA-processing factor 19

1

0

High-throughput

0.458

High

1208204

TSSC4
U5 small nuclear ribonucleoprotein TSSC4

1

1

High-throughput

0.445

High

1208192

SPTCS
Spatacsin

1

0

Small-scale

0.438

High

412055

NTRK1
High affinity nerve growth factor receptor

1

1

High-throughput

0.437

High

1208194

UBX10
UBX domain-containing protein 10

1

1

High-throughput

0.437

High

1208202

NDUAD
NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13

1

0

High-throughput

0.426

High

516098

CT456
Cancer/testis antigen family 45 member A6

1

1

High-throughput

0.407

High

1208199

OCAD1
OCIA domain-containing protein 1

1

1

High-throughput

0.407

High

1208188

PNKD
Probable thioesterase PNKD

2

0

High-throughput

0.318

High

1101505

GPR17
Uracil nucleotide/cysteinyl leukotriene receptor

1

0

High-throughput

0.279

Low

1208180

SPAT1
Spermatogenesis-associated protein 1

1

0

High-throughput

0.279

Low

1208182

B4GN3
Beta-1,4-N-acetylgalactosaminyltransferase 3

1

0

High-throughput

0.279

Low

1208198

CUED1
CUE domain-containing protein 1

1

0

High-throughput

0.279

Low

1208205

HS3S4
Heparan sulfate glucosamine 3-O-sulfotransferase 4

1

0

High-throughput

0.279

Low

654978

ITA6
Integrin alpha-6

1

0

High-throughput

0.269

Low

1178179

CL16A
Protein CLEC16A

1

0

High-throughput

0.249

Low

640187

EPHA1
Ephrin type-A receptor 1

1

0

High-throughput

0.232

Low

1208186

RIC3
Protein RIC-3

1

0

High-throughput

0.232

Low

1208191

ESS2
Splicing factor ESS-2 homolog

1

0

High-throughput

0.232

Low

1208193

S35E1
Solute carrier family 35 member E1

1

0

High-throughput

0.232

Low


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Last updated: 11Aug2025