Protein / target

Sphingosine 1-phosphate receptor 1

S1PR1P21453Homo sapiensSwiss-Prot
Clinically validated
Therapeutic maturity
10
Approved medicines
2
Clinical trials
Small-molecule tractable
Druggability
Approved Drug

Protein at a glance

Biological role

Sphingosine-1-phosphate receptor activity

Primary system

Cardiovascular system

Strongest disease association

hypothyroidism

Genetic evidence · score 0.55

Therapeutic maturity

Clinically validated target

10 approved medicines against this target

Druggability

Small molecule

Open Targets tractability · Approved Drug

Clinical development

10 approved · 4 in clinical development

2 linked trials

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

G protein-coupled receptor for the bioactive lysosphingolipid sphingosine 1-phosphate (S1P) that seems to be coupled to the G(i) subclass of heteromeric G proteins. Signaling leads to the activation of RAC1, SRC, PTK2/FAK1 and MAP kinases. Plays an important role in cell migration, probably via its role in the reorganization of the actin cytoskeleton and the formation of lamellipodia in response to stimuli that increase the activity of the sphingosine kinase SPHK1. Required for normal chemotaxis toward sphingosine 1-phosphate. Required for normal embryonic heart development and normal cardiac morphogenesis. Plays an important role in the regulation of sprouting angiogenesis and vascular maturation. Inhibits sprouting angiogenesis to prevent excessive sprouting during blood vessel development. Required for normal egress of mature T-cells from the thymus into the blood stream and into peripheral lymphoid organs. Plays a role in the migration of osteoclast precursor cells, the regulation of bone mineralization and bone homeostasis (By similarity). Plays a role in responses to oxidized 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine by pulmonary endothelial cells and in the protection against ventilator-induced lung injury

Subcellular location

Cell membraneEndosomeMembrane raft
Domains and Gene Ontology detail (35)

Gene Ontology

  • Ccytoplasm
  • Cendosome
  • Cexternal side of plasma membrane
  • Cmembrane raft
  • Cplasma membrane
  • Cpresynapse
  • FG protein-coupled receptor activity
  • FG protein-coupled receptor binding
  • Fsphingolipid binding
  • Fsphingosine-1-phosphate receptor activity
  • Pactin cytoskeleton organization
  • Padenylate cyclase-activating G protein-coupled receptor signaling pathway

382 aa · 43 kDa

Biological roles

Reactome v97

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

G protein-coupled signallingUniProt · GOImmune signallingGO · ReactomeSynaptic signallingGOCell adhesionGOTranscriptional regulationGO
View supporting evidence

G protein-coupled signalling

  • ·G protein-coupled receptor for the bioactive lysosphingolipid sphingosine 1-phosphate (S…
  • ·G protein-coupled receptor activity
  • ·G protein-coupled receptor binding
  • ·adenylate cyclase-activating G protein-coupled receptor signaling pathway

Immune signalling

  • ·T cell migration
  • ·Interleukin-4 and Interleukin-13 signaling

Synaptic signalling

  • ·presynapse

Cell adhesion

  • ·cell adhesion

Transcriptional regulation

  • ·positive regulation of transcription by RNA polymerase II
View underlying pathways (3)

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

Interaction neighbourhood

STRING v12.0

Proteins with the strongest functional or physical association. Node size and line weight reflect STRING confidence; hover or select a partner to inspect one association.

CD69GNAI1GNAI3S1PR4GNAI2GNB1SPHK1SPHK2KLF2GNG2S1PR1

10 strongest partners — larger node and heavier line mean higher confidence

Functional and physical associations from STRING v12.0. Only associations with this protein are drawn — partner-to-partner links are not part of this evidence.

Drugs targeting this protein

1

Whether each drug engages this protein directly or through a complex, and how many other targets are recorded for it. Direct binders with few recorded targets are listed first.

Sphingosine 1-phosphate receptor agonist

Appears in clinical studies involving multiple sclerosis, relapsing-remitting multiple sclerosis, kidney transplant

Acts on a complex — shared with S1PR5, S1PR2, S1PR4 +1 more · 1 of 5 recorded protein targets

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

Translational evidence

Open Targets 26

Why this target matters therapeutically — disease associations, drugs in development, tractability and safety, from Open Targets.

Strongest genetic associations

Human genetic evidence — the most direct causal link between this target and a disease.

hypothyroidism0.55

Genetic · overall 0.33

Highest-confidence therapeutic associations

Diseases where a drug acting on this target has already reached clinical development.

multiple sclerosis0.99

Clinical · overall 0.61

ulcerative colitis0.94

Clinical · overall 0.58

relapsing-remitting multiple sclerosis0.93

Clinical · overall 0.57

chronic progressive multiple sclerosis0.76

Clinical · overall 0.46

Crohn disease0.63

Clinical · overall 0.39

Highest overall evidence

Remaining associations by Open Targets' aggregated evidence score.

systemic lupus erythematosus0.40

Literature

secondary progressive multiple sclerosis0.37

Clinical

primary progressive multiple sclerosis0.37

Clinical

kidney transplant0.34

Clinical

Show all associations
multiple sclerosis0.61
ulcerative colitis0.58
relapsing-remitting multiple sclerosis0.57
chronic progressive multiple sclerosis0.46
systemic lupus erythematosus0.40
Crohn disease0.39
secondary progressive multiple sclerosis0.37
primary progressive multiple sclerosis0.37
kidney transplant0.34
hypothyroidism0.33

Open Targets ranks 651 associations for this target and we store the top 10 by aggregated score. The long tail is largely literature co-mention and RNA-expression evidence, not evidence that this target drives those diseases.

Known drugs · 14 total

CENERIMODPhase 3

systemic lupus erythematosus · lupus nephritis

AMISELIMOD HYDROCHLORIDEPhase 2

Crohn disease · multiple sclerosis · psoriasis

AMISELIMODPhase 2

ulcerative colitis · multiple sclerosis · systemic lupus erythematosus

SIPONIMODApproval

multiple sclerosis · relapsing-remitting multiple sclerosis · chronic progressive multiple sclerosis

ETRASIMODApproval

ulcerative colitis · Crohn disease · atopic eczema

PONESIMODApproval

multiple sclerosis · relapsing-remitting multiple sclerosis · psoriasis vulgaris

ETRASIMOD ARGININEApproval

ulcerative colitis

OZANIMOD HYDROCHLORIDEApproval

multiple sclerosis · ulcerative colitis · relapsing-remitting multiple sclerosis

OZANIMODApproval

multiple sclerosis · non-small cell lung carcinoma · ulcerative colitis

FINGOLIMODApproval

primary progressive multiple sclerosis · multiple sclerosis · relapsing-remitting multiple sclerosis

Tractability

SM · Approved DrugSM · Structure with LigandSM · High-Quality LigandSM · Druggable FamilyAB · UniProt loc high confAB · GO CC high confAB · UniProt SigP or TMHMMPR · Database UbiquitinationPR · Small Molecule Binder

Clinical trials

2

Trials of drugs that target this protein — reached indirectly through those drugs, so a trial listed here studies the drug, not the protein.

COMPLETED · via Fingolimod Hydrochloride · NCT03943498

COMPLETED · via Fingolimod Hydrochloride · NCT03941743

ClinicalTrials.gov via the drug-target graph.

Forefront confidence

Synthesis

Our own weighting of the evidence behind each disease association. Human genetics and clinical evidence count for most; literature co-mention counts for little, because two entities sharing an abstract is not evidence that one drives the other.

multiple sclerosisWell supported
0.75
agreement 0.600.91
Clinical96%Literature4%

Open Targets aggregate 0.61 · 2 independent evidence families

ulcerative colitisModerately supported
0.72
agreement 0.580.85
Clinical96%Literature3%RNA expression2%

Open Targets aggregate 0.58 · 3 independent evidence families

relapsing-remitting multiple sclerosisModerately supported
0.70
agreement 0.550.86
Clinical96%Literature4%

Open Targets aggregate 0.57 · 2 independent evidence families

chronic progressive multiple sclerosisModerately supported
0.57
agreement 0.410.73
Clinical100%

Open Targets aggregate 0.46 · 1 independent evidence family

hypothyroidismModerately supported
0.55
agreement 0.430.67
Genetic100%

Open Targets aggregate 0.33 · 1 independent evidence family

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 underlying per-type scores are shown above so the calculation can be checked.

What's happening now

3

Recent activity around this target, drawn from one canonical event stream. Every item is reached through a drug that targets this protein, so each event is news about that drug rather than about the protein directly.

  1. New publication2023-09-05
    Glial Sphingosine-Mediated Epigenetic Regulation Stabilizes Synaptic Function in <i>Drosophila</i> Models of Alzheimer's Disease.

    The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023 · 8 citations · Europe PMC · via Fingolimod Hydrochloride

  2. Regulatory approval2020-06-25

    Approval: Fingolimod Accord (EMA)

    ema · regulatory · ema · via Fingolimod Hydrochloride

  3. Regulatory approval2011-03-17

    Approval: Gilenya (EMA)

    ema · regulatory · ema · via Fingolimod Hydrochloride

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.