PSTPIP2

gene
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Summary

PSTPIP2 (proline-serine-threonine phosphatase interacting protein 2, HGNC:9581) is a protein-coding gene on chromosome 18q21.1, encoding Proline-serine-threonine phosphatase-interacting protein 2 (Q9H939). Binds to F-actin.

Predicted to be located in cytoskeleton; cytosol; and membrane. Predicted to be active in cytoplasm.

Source: NCBI Gene 9050 — RefSeq curated summary.

At a glance

  • GWAS associations: 3
  • Clinical variants (ClinVar): 48 total
  • Druggable target: yes
  • MANE Select transcript: NM_024430

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:9581
Approved symbolPSTPIP2
Nameproline-serine-threonine phosphatase interacting protein 2
Location18q21.1
Locus typegene with protein product
StatusApproved
Ensembl geneENSG00000152229
Ensembl biotypeprotein_coding
OMIM616046
Entrez9050

Gene structure

Transcript identifiers

Ensembl transcripts: 12 — 8 protein_coding, 3 retained_intron, 1 protein_coding_CDS_not_defined

ENST00000409746, ENST00000587042, ENST00000588801, ENST00000589328, ENST00000591729, ENST00000593086, ENST00000909790, ENST00000909791, ENST00000909792, ENST00000909793, ENST00000941998, ENST00000941999

RefSeq mRNA: 1 — MANE Select: NM_024430 NM_024430

CCDS: CCDS32820

Canonical transcript exons

ENST00000409746 — 15 exons

ExonStartEnd
ENSE000028351214607215646072260
ENSE000033802854599360545993703
ENSE000034373044599774945997828
ENSE000034683054601118146011287
ENSE000034759284599190245991983
ENSE000034852394600546946005531
ENSE000034866204599072245990756
ENSE000034928884601590346015937
ENSE000035332454599943645999534
ENSE000035446604599879445998839
ENSE000035627344598870245988759
ENSE000035844694598353645985450
ENSE000036161134602460946024686
ENSE000036608374599210645992202
ENSE000036643884603994746040047

Expression profiles

Bgee: expression breadth ubiquitous, 197 present calls, max score 95.57.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 13.2782 / max 433.9727, expressed in 1638 samples.

FANTOM5 promoters (5 alternative TSS)

Promoter IDTPM avgSamples expressed
17178912.66901624
1717900.2965120
1717910.240490
1717820.063412
1717830.00893

Top tissues by expression

275 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
spleenUBERON:000210695.57gold quality
monocyteCL:000057695.54gold quality
mononuclear cellCL:000084295.12gold quality
leukocyteCL:000073894.67gold quality
granulocyteCL:000009490.77gold quality
bone marrowUBERON:000237190.50gold quality
bloodUBERON:000017890.38gold quality
hindlimb stylopod muscleUBERON:000425289.61gold quality
trabecular bone tissueUBERON:000248389.10gold quality
bone marrow cellCL:000209287.87gold quality
muscle of legUBERON:000138386.51gold quality
gastrocnemiusUBERON:000138886.32gold quality
biceps brachiiUBERON:000150786.08gold quality
mucosa of stomachUBERON:000119985.62gold quality
skeletal muscle tissue of rectus abdominisUBERON:000451185.59gold quality
muscle organUBERON:000163084.89gold quality
right lungUBERON:000216784.01gold quality
skeletal muscle tissue of biceps brachiiUBERON:000450283.49silver quality
skin of legUBERON:000151183.03gold quality
upper lobe of left lungUBERON:000895282.90gold quality
skin of abdomenUBERON:000141681.97gold quality
skeletal muscle tissueUBERON:000113481.94gold quality
upper lobe of lungUBERON:000894881.61gold quality
right lobe of liverUBERON:000111481.23gold quality
vastus lateralisUBERON:000137980.48silver quality
zone of skinUBERON:000001480.36gold quality
body of stomachUBERON:000116179.40gold quality
minor salivary glandUBERON:000183078.97gold quality
gall bladderUBERON:000211078.93gold quality
muscle tissueUBERON:000238578.85gold quality

Single-cell (SCXA)

Detected in 8 experiment(s), a significant marker in 5.

ExperimentMarker?Max mean expression
E-CURD-112yes33.97
E-HCAD-6yes20.34
E-HCAD-10yes16.04
E-MTAB-9067yes11.47
E-ANND-3yes9.60
E-CURD-6no407.73
E-MTAB-8410no3.57
E-MTAB-6678no3.37

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

116 targeting PSTPIP2, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-3613-3P100.0076.367965
HSA-MIR-5692A100.0074.406850
HSA-MIR-5692B100.0071.322622
HSA-MIR-5692C100.0071.322622
HSA-MIR-4713-3P100.0065.92505
HSA-MIR-200B-3P100.0073.312693
HSA-MIR-200C-3P100.0073.352685
HSA-MIR-429100.0073.442698
HSA-MIR-3163100.0077.238605
HSA-MIR-371B-5P99.9975.344759
HSA-MIR-548AW99.9972.573559
HSA-MIR-548C-3P99.9974.017587
HSA-MIR-150-5P99.9966.691976
HSA-MIR-373-5P99.9875.364753
HSA-MIR-616-5P99.9875.584775
HSA-MIR-211099.9666.681930
HSA-MIR-590-3P99.9674.346478
HSA-MIR-4725-3P99.9669.532520
HSA-MIR-6780B-5P99.9669.602562
HSA-LET-7C-3P99.9573.422862
HSA-MIR-3912-5P99.9566.11925
HSA-MIR-971899.9468.91918
HSA-MIR-651-3P99.9473.485177
HSA-MIR-335-3P99.9373.364958
HSA-MIR-454-3P99.9174.011925
HSA-MIR-368699.9070.532432
HSA-MIR-130A-3P99.9073.311861
HSA-MIR-130B-3P99.9073.271850
HSA-MIR-301A-3P99.9073.151839
HSA-MIR-301B-3P99.9073.191836

Literature-anchored findings (GeneRIF, showing 4)

  • PSTPIP2 dysregulation contributes to aberrant terminal differentiation in GATA-1-deficient megakaryocytes by activating LYN. (PMID:24407241)
  • Methylation on PSTPIP2 is associated with the development of anti-tuberculosis drug-induced liver injury. (PMID:31247120)
  • PSTPIP2 inhibits cisplatin-induced acute kidney injury by suppressing apoptosis of renal tubular epithelial cells. (PMID:33311489)
  • PSTPIP2 is associated with disease severity in patients with pressure ulcer sepsis and has anti-inflammatory effects. (PMID:37695226)

Cross-species orthologs

5 orthologs

OrganismSymbolGene ID
danio_reriopstpip2ENSDARG00000089569
mus_musculusPstpip2ENSMUSG00000025429
rattus_norvegicusPstpip2ENSRNOG00000016987
drosophila_melanogasterCG8176FBGN0037702
caenorhabditis_elegansWBGENE00018974

Paralogs (5): GAS7 (ENSG00000007237), SGIP1 (ENSG00000118473), FCHO1 (ENSG00000130475), PSTPIP1 (ENSG00000140368), FCHO2 (ENSG00000157107)

Protein

Protein identifiers

Proline-serine-threonine phosphatase-interacting protein 2Q9H939 (reviewed: Q9H939)

All UniProt accessions (4): Q9H939, A0A0S2Z4R2, A0A0S2Z505, A0A0S2Z5F6

UniProt curated annotations — full annotation on UniProt →

Function. Binds to F-actin. May be involved in regulation of the actin cytoskeleton.

Subcellular location. Cytoplasm. Membrane.

Post-translational modifications. Phosphorylated on tyrosine.

Isoforms (2)

UniProt IDNamesCanonical?
Q9H939-11yes
Q9H939-22

RefSeq proteins (1): NP_077748* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR001060FCH_domDomain
IPR027267AH/BAR_dom_sfHomologous_superfamily
IPR031160F_BAR_domDomain
IPR042694PSTPIP2_F-BARDomain

Pfam: PF00611

UniProt features (10 total): modified residue 2, sequence variant 2, chain 1, domain 1, region of interest 1, coiled-coil region 1, splice variant 1, sequence conflict 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q9H939-F189.880.80

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Post-translational modifications (2): 323, 329

Function

Pathways and Gene Ontology

Reactome pathways

0 pathways

MSigDB gene sets: 200 (showing top): LEE_NEURAL_CREST_STEM_CELL_DN, GOZGIT_ESR1_TARGETS_DN, GRAESSMANN_APOPTOSIS_BY_DOXORUBICIN_UP, IVANOVA_HEMATOPOIESIS_LATE_PROGENITOR, BOYLAN_MULTIPLE_MYELOMA_D_DN, TANG_SENESCENCE_TP53_TARGETS_UP, BOYLAN_MULTIPLE_MYELOMA_D_CLUSTER_DN, BYSTROEM_CORRELATED_WITH_IL5_DN, BROWN_MYELOID_CELL_DEVELOPMENT_UP, GAVIN_FOXP3_TARGETS_CLUSTER_T7, GAVIN_FOXP3_TARGETS_CLUSTER_P2, MASSARWEH_TAMOXIFEN_RESISTANCE_UP, BEGUM_TARGETS_OF_PAX3_FOXO1_FUSION_AND_PAX3, CASORELLI_ACUTE_PROMYELOCYTIC_LEUKEMIA_DN, SENESE_HDAC1_AND_HDAC2_TARGETS_UP

GO Biological Process (0):

GO Molecular Function (1): protein binding (GO:0005515)

GO Cellular Component (5): cytoplasm (GO:0005737), cytosol (GO:0005829), cytoskeleton (GO:0005856), plasma membrane (GO:0005886), membrane (GO:0016020)

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular anatomical structure3
binding1
intracellular anatomical structure1
cytoplasm1
intracellular membraneless organelle1
membrane1
cell periphery1

Protein interactions and networks

STRING

1566 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
PSTPIP2TNFRSF11AQ9Y6Q6764
PSTPIP2LPIN2Q92539653
PSTPIP2IL1RNP18510607
PSTPIP2FBLIM1Q8WUP2528
PSTPIP2TRIP10Q15642518
PSTPIP2ARK2CQ6ZSG1505
PSTPIP2PLA2G4CQ9UP65499
PSTPIP2OSBPP22059476
PSTPIP2FNBP1Q96RU3456
PSTPIP2CSKP41240443
PSTPIP2CIBAR2Q6ZTR7424
PSTPIP2VAPAQ9P0L0423
PSTPIP2PTPN18Q99952417
PSTPIP2FESP07332414
PSTPIP2FCHSD1Q86WN1414

IntAct

39 interactions, top by confidence:

ABTypeScore
PTPN12SHC1psi-mi:“MI:0914”(association)0.860
CFTRESYT2psi-mi:“MI:2364”(proximity)0.710
LPXNPCNTpsi-mi:“MI:0914”(association)0.640
VAPAFAM83Gpsi-mi:“MI:0914”(association)0.640
GRB2SH3PXD2Bpsi-mi:“MI:0914”(association)0.530
SHC1BCR/ABL fusionpsi-mi:“MI:0914”(association)0.460
PSTPIP2DNAJC5psi-mi:“MI:0915”(physical association)0.400
PTPN22PSTPIP2psi-mi:“MI:0915”(physical association)0.400
VAPAFAM83Gpsi-mi:“MI:0914”(association)0.350
PTPN12AIFM1psi-mi:“MI:0914”(association)0.350
ENGIGKV2-28psi-mi:“MI:0914”(association)0.350
PTPN12PRPSAP2psi-mi:“MI:0914”(association)0.350
PTPN12HSPB1psi-mi:“MI:0914”(association)0.350
GRB2CNOT1psi-mi:“MI:0914”(association)0.350
PTPN18AIPpsi-mi:“MI:0914”(association)0.350
PTPN18TIPRLpsi-mi:“MI:0914”(association)0.350
LPXNMED14psi-mi:“MI:0914”(association)0.350
MFSD1RP2psi-mi:“MI:0914”(association)0.350
SLC22A13XRCC3psi-mi:“MI:0914”(association)0.350
CDC5Lpsi-mi:“MI:0914”(association)0.350
STK38LSH3PXD2Bpsi-mi:“MI:2364”(proximity)0.270
STK38LCCDC187psi-mi:“MI:2364”(proximity)0.270
PTPN12ARHGAP10psi-mi:“MI:2364”(proximity)0.270
EGFRFAM171A2psi-mi:“MI:2364”(proximity)0.270
ERBB2NHERF1psi-mi:“MI:2364”(proximity)0.270
FGFR1BLTP3Bpsi-mi:“MI:2364”(proximity)0.270

BioGRID (45): PSTPIP2 (Affinity Capture-MS), PSTPIP2 (Affinity Capture-MS), PSTPIP2 (Affinity Capture-MS), PSTPIP2 (Affinity Capture-MS), PSTPIP2 (Proximity Label-MS), PSTPIP2 (Affinity Capture-MS), PSTPIP2 (Affinity Capture-MS), PSTPIP2 (Affinity Capture-MS), PSTPIP2 (Affinity Capture-MS), PSTPIP2 (Affinity Capture-MS), PSTPIP2 (Affinity Capture-RNA), KRT18 (Two-hybrid), PSTPIP2 (Affinity Capture-Luminescence), PSTPIP2 (Affinity Capture-MS), PSTPIP2 (Affinity Capture-MS)

ESM2 similar proteins: A7MBI0, D3ZYR1, O13154, O43586, O55148, O60749, O60861, P09760, P16591, P70451, P97531, P97814, Q0JRZ9, Q15642, Q2HWF0, Q3KR97, Q3UQN2, Q4V920, Q5R411, Q5R807, Q5RCJ1, Q5T0N5, Q5U3Q6, Q60780, Q61644, Q6DCZ7, Q6GNV5, Q6GUF4, Q8CJ53, Q8I190, Q8I1A6, Q8I1C0, Q8I1I3, Q8K012, Q8T390, Q91VH2, Q99JB8, Q99M15, Q99N27, Q9BY11

Diamond homologs: A1C4A5, A1X283, A2AAY5, A5D7F8, A5D8S5, A6NI72, A7E3N2, A8MVU1, A8PWF6, E2RP94, E9Q634, F1LRS8, F1M707, M0R4F8, O01498, O15259, O35413, O42287, O43281, O43586, O70145, O76041, O77506, O77774, O77775, O89032, O94875, P07751, P0CP00, P0CP01, P10569, P13395, P14598, P16086, P16546, P19706, P19878, P20929, P34109, P39743

SIGNOR signaling

0 interactions.

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 44 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.

Reactome pathways:

PathwayPartnersFoldFDR
SHC1 events in ERBB2 signaling582.0×9e-07
Constitutive Signaling by Aberrant PI3K in Cancer626.2×6e-06
PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling620.0×2e-05
PIP3 activates AKT signaling613.8×1e-04
RAF/MAP kinase cascade612.6×2e-04

Disease & clinical

Clinical variants and AI predictions

ClinVar

48 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance22
Likely benign3
Benign0

Top pathogenic / likely-pathogenic (0)

SpliceAI

2368 predictions. Top by Δscore:

VariantEffectΔscore
18:45997734:T:TAdonor_gain1.0000
18:45997745:GTAC:Gdonor_loss1.0000
18:45997746:TAC:Tdonor_loss1.0000
18:45997748:C:CAdonor_loss1.0000
18:45997824:TTTGT:Tacceptor_gain1.0000
18:45997825:TTGT:Tacceptor_gain1.0000
18:45997826:TGT:Tacceptor_gain1.0000
18:45997827:GT:Gacceptor_gain1.0000
18:45997828:TC:Tacceptor_loss1.0000
18:45997829:C:CAacceptor_loss1.0000
18:45997829:C:CCacceptor_gain1.0000
18:45997830:T:Aacceptor_loss1.0000
18:45997833:A:Tacceptor_gain1.0000
18:45997835:C:CTacceptor_gain1.0000
18:45997836:A:Tacceptor_gain1.0000
18:45998788:CCTCA:Cdonor_loss1.0000
18:45998790:TCACC:Tdonor_loss1.0000
18:45998791:CACCT:Cdonor_loss1.0000
18:45998793:C:CAdonor_loss1.0000
18:45998849:C:CTacceptor_gain1.0000
18:45999534:CCTT:Cacceptor_gain1.0000
18:45999537:T:TCacceptor_gain1.0000
18:45999541:CATTA:Cacceptor_gain1.0000
18:45999542:A:Cacceptor_gain1.0000
18:45999542:A:Tacceptor_gain1.0000
18:45999543:T:Cacceptor_gain1.0000
18:45999543:T:TCacceptor_gain1.0000
18:45999545:A:ACacceptor_gain1.0000
18:45999545:A:Cacceptor_gain1.0000
18:45999550:C:CTacceptor_gain1.0000

AlphaMissense

2238 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
18:45993678:C:GR223P0.998
18:46024654:A:GL56P0.998
18:46024685:C:GA46P0.998
18:45993663:C:GR228P0.997
18:45997778:A:GW205R0.997
18:45997778:A:TW205R0.997
18:46024663:C:TG53D0.997
18:45999492:C:GA154P0.995
18:45992186:C:GR253P0.994
18:46024645:A:GL59P0.994
18:46039956:A:GL42P0.994
18:46011272:G:TA88E0.993
18:45992153:T:GD264A0.992
18:45992154:C:GD264H0.992
18:45997757:C:GA212P0.992
18:45997820:A:CY191D0.992
18:46011252:C:GA95P0.992
18:46039998:A:GL28P0.992
18:46011251:G:TA95E0.991
18:46024664:C:GG53R0.991
18:46040022:C:TG20D0.991
18:45997765:T:GH209P0.990
18:46011188:C:GR116P0.990
18:46024686:C:AR45S0.990
18:46024686:C:GR45S0.990
18:45999534:C:GA140P0.989
18:46015920:A:GL77P0.989
18:45993652:A:GW232R0.988
18:45993652:A:TW232R0.988
18:45997776:C:AW205C0.988

dbSNP variants (sampled 300 via entrez): RS1000103549 (18:46044890 CA>C,CAA), RS1000136214 (18:46045142 A>C,T), RS1000158153 (18:45995235 T>C), RS1000196703 (18:45989485 G>A), RS1000204799 (18:46018546 T>C), RS1000269014 (18:45989106 T>C), RS1000273401 (18:46073921 C>A), RS1000376550 (18:46031927 T>G), RS1000389241 (18:46045552 C>A), RS1000410462 (18:46046068 G>A), RS1000417899 (18:46026039 G>A), RS1000470124 (18:46025848 G>A), RS1000577450 (18:46019135 A>G), RS1000614283 (18:46056918 A>G), RS1000645675 (18:46013062 T>C)

Disease associations

OMIM: gene MIM:616046 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

3 associations (top):

StudyTraitp-value
GCST007741_18Iris color (b* coordinate)2.000000e-06
GCST90002400_246Plateletcrit3.000000e-09
GCST90002402_428Platelet count3.000000e-10

EFO canonical traits (3, from GWAS)

EFO IDTrait name
EFO:0009764eye colour measurement
EFO:0007985platelet crit
EFO:0004309platelet count

Drugs & pharmacology

Drug and pharmacology data

Is drug target: yes

ChEMBL targets (1): CHEMBL6067297 (SINGLE PROTEIN)

PharmGKB: 1 entry (VIP=true, CPIC=false)

ChEMBL bioactivities

2 potent at pChembl≥5 of 2 total, top 2 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).

pChemblTypeValueUnitMolecule
7.64Kd22.88nMCHEMBL5653589
7.64ED5022.88nMCHEMBL5653589

PubChem BioAssay actives

1 with measured affinity, of 2 total; 1 most potent distinct compounds. Largely complementary to BindingDB; screening values are coarse (µM, 4 dp), so sub-nM hits tie at the floor.

CompoundAssayTypeValueUnit
4-methyl-3-[(2-methyl-6-pyridin-3-ylpyrazolo[3,4-d]pyrimidin-4-yl)amino]-N-[3-(trifluoromethyl)phenyl]benzamide2149139: Binding affinity to human PSTPIP2 incubated for 45 mins by Kinobead based pull down assaykd0.0229uM

CTD chemical–gene interactions

44 total (human), top 30 by PubMed support.

ChemicalActions (top 5)PubMed papers
Benzo(a)pyreneaffects expression, affects methylation, increases expression5
Valproic Acidaffects cotreatment, increases expression, increases methylation5
Aflatoxin B1affects expression, increases expression4
sodium arsenitedecreases expression, affects cotreatment, increases abundance, increases expression3
bisphenol Aaffects cotreatment, increases methylation, decreases expression2
(+)-JQ1 compounddecreases expression2
Acetaminophendecreases expression, increases expression2
Estradioldecreases expression, increases expression, affects cotreatment2
Phenylmercuric Acetateaffects cotreatment, increases expression2
Tobacco Smoke Pollutionaffects expression, increases expression2
Particulate Matterdecreases expression, increases abundance, affects cotreatment, increases expression2
aristolochic acid Iincreases expression1
deoxynivalenolincreases expression1
trichostatin Aincreases expression1
manganese chlorideincreases abundance, increases expression, affects cotreatment1
benzo(e)pyrenedecreases methylation1
S-(1,2-dichlorovinyl)cysteinedecreases reaction, increases expression1
isobutyl alcoholaffects cotreatment, increases abundance, increases expression1
CGP 52608affects binding, increases reaction1
2-palmitoylglycerolincreases expression1
4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamideincreases expression, affects cotreatment1
abrineincreases expression1
dorsomorphinaffects cotreatment, increases expression1
bisphenol Sdecreases methylation1
Resveratrolaffects cotreatment, increases expression1
Sunitinibdecreases expression1
Fulvestrantaffects cotreatment, increases methylation1
Air Pollutantsincreases abundance, decreases expression1
Arsenicaffects cotreatment, increases abundance, increases expression1
Cytarabinedecreases expression1

ChEMBL screening assays

1 unique, capped per target: 1 binding

Representative assays (with source publication via chembl_document):

Assay IDTypeDescriptionSource paper
CHEMBL5652181BindingBinding affinity to human PSTPIP2 incubated for 45 mins by Kinobead based pull down assayNVP-BHG712: Effects of Regioisomers on the Affinity and Selectivity toward the EPHrin Family. — ChemMedChem

Clinical trials (associated diseases)

0 trials via MONDO — disease-level, not drug-specific.

No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.