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Protein / target

P-selectin

Encoded bySELPP16109Homo sapiensSwiss-Prot
Clinically validated
Therapeutic maturity
1
Approved medicines
Open Targets target-level
View by indication →
12
Clinical trials
Small-molecule tractable
Druggability
Advanced Clinical

Protein at a glance

Biological role

Calcium-dependent protein binding

Strongest disease association

Atrial Fibrillation

Via encoding gene SELP · Genetic evidence · score 0.54

Therapeutic position

Established drug target

Small molecules and antibodies

Research activity

Emerging research

2 papers · latest 2020

Derived from structured UniProt, Open Targets and literature data on this page.

Protein profile

UniProt 2026_02

Canonical identity and biological annotation from UniProt.

Function overview

Ca(2+)-dependent receptor for myeloid cells that binds to carbohydrates on neutrophils and monocytes.

View complete UniProt function annotation

Ca(2+)-dependent receptor for myeloid cells that binds to carbohydrates on neutrophils and monocytes. Mediates the interaction of activated endothelial cells or platelets with leukocytes. The ligand recognized is sialyl-Lewis X. Mediates rapid rolling of leukocyte rolling over vascular surfaces during the initial steps in inflammation through interaction with SELPLG. Mediates cell-cell interactions and cell adhesion via the interaction with integrin alpha-IIb/beta3 (ITGA2B:ITGB3) and integrin alpha-V/beta-3 (ITGAV:ITGB3) (PubMed:37184585)

Subcellular location

Cell membrane
Domains and Gene Ontology detail (39)

Domains & features

C-type lectinEGF-likeSushi 1Sushi 2Sushi 3Sushi 4Sushi 5Sushi 6Sushi 7Sushi 8Sushi 9

Gene Ontology

  • Cexternal side of plasma membrane
  • Cextracellular space
  • Cplasma membrane
  • Cplatelet alpha granule membrane
  • Cplatelet dense granule membrane
  • Fcalcium ion binding
  • Fcalcium-dependent protein binding
  • Ffucose binding
  • Fglycosphingolipid binding
  • Fheparin binding
  • Fintegrin binding
  • Flipopolysaccharide binding

830 aa · 91 kDa

Biological roles

What this protein does, drawn together from its UniProt function, Gene Ontology terms and Reactome pathways.

Cell adhesionUniProt · GOHaemostasisUniProt · GOImmune signallingGO
View supporting evidence

Cell adhesion

  • ·Ca(2+)-dependent receptor for myeloid cells that binds to carbohydrates on neutrophils a…
  • ·calcium-dependent cell-cell adhesion
  • ·cell adhesion
  • ·cell-cell adhesion

Haemostasis

  • ·Ca(2+)-dependent receptor for myeloid cells that binds to carbohydrates on neutrophils a…
  • ·platelet alpha granule membrane
  • ·platelet dense granule membrane
  • ·positive regulation of platelet activation

Immune signalling

  • ·calcium-dependent cell-cell adhesion
  • ·response to cytokine

Concepts derived from UniProt GO Reactome — each badge above shows which sources supported that role.

Approved medicines with mapped indications

1 medicine · 1 area

Approved therapies targeting this protein, grouped by what they are approved to treat — the disease-first view of the medicines below. Relationships come from the canonical approved-indication graph (ChEMBL phase-4), the same source as the drug cards.

Anemia, Sickle Cell1 medicine

Approved indications from ChEMBL (phase-4), via the canonical drug→disease graph.

Drugs targeting this protein

1

How approved and investigational drugs engage this protein — mechanism and action type, direct vs complex targeting, and how broadly each acts across other targets. A drug-first view (the section above groups the approved ones disease-first); direct binders with few recorded targets are listed first.

crizanlizumab
Narrow target profileApprovedBlocker

P-selectin blocker

Indicated for Anemia, Sickle Cell

Direct interaction with this protein · Only this protein recorded as a target

ChEMBL mechanism, action type, target identity and approved indications. Open Targets clinical status.

Translational evidence

Open Targets 26

Why this target matters therapeutically, strongest evidence first. Disease associations are gene-level (via the gene that encodes this protein) and open into the full confidence synthesis; the development universe, tractability and safety annotations are target-level, from Open Targets.

Strongest disease associations · via encoding gene SELP

Gene-level evidence surfaced through the gene SELPthat encodes this protein — not a direct protein–disease relationship. Ranked by Forefront's causal-directness weighting, so genetically- and clinically-evidenced diseases lead over ones that merely share the literature.

Anemia, Sickle Cell
0.69Moderately supported

Clinical evidence dominant · Open Targets 0.56

Atrial Fibrillation
0.60Moderately supported

Genetic evidence dominant · Open Targets 0.36

Venous Thrombosis
0.55Moderately supported

Genetic evidence dominant · Open Targets 0.32

Thrombophilia
0.50Moderately supported

Genetic evidence dominant · Open Targets 0.30

Pneumonia, Viral
0.42Limited support

Genetic evidence dominant · Open Targets 0.25

View evidence synthesis (5)
Anemia, Sickle CellModerately supported
0.69
agreement 0.540.85
Clinical96%Literature4%

Open Targets aggregate 0.56 · 2 independent evidence families

Atrial FibrillationModerately supported
0.60
agreement 0.460.74
Genetic81%Literature19%

Open Targets aggregate 0.36 · 2 independent evidence families

Venous ThrombosisModerately supported
0.55
agreement 0.410.69
Genetic80%Literature20%

Open Targets aggregate 0.32 · 2 independent evidence families

ThrombophiliaModerately supported
0.50
agreement 0.360.64
Genetic97%Literature3%

Open Targets aggregate 0.30 · 2 independent evidence families

Pneumonia, ViralLimited support
0.42
agreement 0.280.56
Genetic99%Literature1%

Open Targets aggregate 0.25 · 2 independent evidence families

The evidence agreement range shows how closely the independent evidence families agree — it is not a statistical confidence interval, and nothing here is fitted to outcome data. Derived from Open Targets evidence types under Forefront weighting; the per-type scores above show the calculation.

Show all associations
Anemia, Sickle Cell0.56
Atrial Fibrillation0.36
Venous Thrombosis0.32
Thrombophilia0.30
Asthma0.29
Pneumonia, Viral0.25

Drug development

5 compounds recorded · 1 approved · 4 in clinical development

Open Targets' development universe — every compound recorded against the target at any stage, not all approved medicines. Distinct from the 1 drug that targets this protein in Forefront's canonical graph (1 with a mapped approved indication, shown above): these count different sets and are not a subset relation.

View all recorded compounds (5)
BIMOSIAMOSEPhase 2
RG-1512Phase 2
RIVIPANSELPhase 3
CRIZANLIZUMABApproval
INCLACUMABPhase 3

Open Targets known-drugs universe. Drug name and highest clinical stage only — the disease relationship is NOT read from this slice (it carries trial-context noise); approved indications come from the canonical graph above.

Tractability

Small moleculesStrong

Advanced Clinical and Structure with Ligand support this modality.

AntibodiesStrong

Approved Drug and UniProt loc high conf support this modality.

Protein degradersEmerging

Feasibility evidence (half-life data and small molecule binder) — no clinical-stage drug of this modality recorded.

View underlying tractability evidence (10)
SM · Advanced ClinicalSM · Structure with LigandSM · High-Quality LigandSM · Druggable FamilyAB · Approved DrugAB · UniProt loc high confAB · GO CC high confAB · UniProt SigP or TMHMMPR · Half-life DataPR · Small Molecule Binder

Raw Open Targets tractability assessment buckets, by modality.

Safety-related annotations

regulation of gene expressionToxCast

Terms indexed against this target in Open Targets' safety data, with their datasource. These are annotations, not causal claims: the direction of effect (whether activation or inhibition is implicated), species and evidence strength are not captured here, so an entry does not mean that modulating this target is known to cause that condition.

Clinical trials

12

Trials of drugs that target this protein — reached indirectly through those drugs, so a trial listed here studies the drug, not the protein. Ranked by active status, then clinical phase and recency, and spread across the targeting drugs.

View all trials (8)

COMPLETED · via crizanlizumab · NCT04435184

ClinicalTrials.gov via the drug-target graph.

What's happening now

1

Recent therapeutic activity around this target — regulatory actions, clinical trials and safety signals for a drug that targets this protein, plus publications where such a drug is a genuine subject. Every item is reached indirectly through the drug, not the protein itself; incidental mentions (a paper that merely measures a drug) and press items are excluded.

  1. Withdrawn from market2023-08-03

    Market withdrawal: Adakveo (EMA)

    ema · market · ema · via crizanlizumab

Objective event titles are shown unmodified; the event kind and significance line are derived from structured fields. Forefront AttentionEvent stream aggregating Europe PMC Regulatory filings ClinicalTrials.gov.

Research activity

2 papers · to 2020

Papers linked directly to this protein. This is the protein's own literature — descriptor-derived papers are kept separate below.

Most cited

Recent

Europe PMC papers linked directly to this protein.