Protein / target
Proto-oncogene tyrosine-protein kinase ROS
Protein at a glance
Biological role
Transmembrane receptor protein tyrosine kinase
Strongest disease association
Lung carcinoma
Therapeutic position
Established drug target
Derived from structured UniProt, Open Targets and literature data on this page.
Protein profile
Canonical identity and biological annotation from UniProt.
Function overview
Receptor tyrosine kinase (RTK) that plays a role in epithelial cell differentiation and regionalization of the proximal epididymal epithelium.
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Receptor tyrosine kinase (RTK) that plays a role in epithelial cell differentiation and regionalization of the proximal epididymal epithelium. NELL2 is an endogenous ligand for ROS1. Upon endogenous stimulation by NELL2, ROS1 activates the intracellular signaling pathway and triggers epididymal epithelial differentiation and subsequent sperm maturation (By similarity). May activate several downstream signaling pathways related to cell differentiation, proliferation, growth and survival including the PI3 kinase-mTOR signaling pathway. Mediates the phosphorylation of PTPN11, an activator of this pathway. May also phosphorylate and activate the transcription factor STAT3 to control anchorage-independent cell growth. Mediates the phosphorylation and the activation of VAV3, a guanine nucleotide exchange factor regulating cell morphology. May activate other downstream signaling proteins including AKT1, MAPK1, MAPK3, IRS1 and PLCG2
Subcellular location
Domains and Gene Ontology detail (25)Hide
Domains & features
Gene Ontology
- Cmembrane
- Cplasma membrane
- Creceptor complex
- FATP binding
- Fprotein phosphatase binding
- Fprotein tyrosine kinase activity
- Ftransmembrane receptor protein tyrosine kinase activity
- Pcell differentiation
- Pcell surface receptor protein tyrosine kinase signaling pathway
- Pcolumnar/cuboidal epithelial cell development
- Pprotein phosphorylation
- Pregulation of cell growth
Biological roles
What this protein does, drawn together from its UniProt function, Gene Ontology terms and Reactome pathways.
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Receptor tyrosine kinase signalling
- ·Receptor tyrosine kinase (RTK) that plays a role in epithelial cell differentiation and…
- ·transmembrane receptor protein tyrosine kinase activity
- ·cell surface receptor protein tyrosine kinase signaling pathway
Concepts derived from UniProt GO Reactome — each badge above shows which sources supported that role.
Interaction neighbourhood
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.
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.
Approved medicines with mapped indications
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.
Approved indications from ChEMBL (phase-4), via the canonical drug→disease graph.
Drugs targeting this protein
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.
Proto-oncogene tyrosine-protein kinase ROS inhibitor
Indicated for Carcinoma, Non-Small-Cell Lung, Neoplasms
Proto-oncogene tyrosine-protein kinase ROS inhibitor
Indicated for Neoplasms
Proto-oncogene tyrosine-protein kinase ROS inhibitor
Indicated for Carcinoma, Non-Small-Cell Lung, Neoplasms
ChEMBL mechanism, action type, target identity and approved indications. Open Targets clinical status.
Translational evidence
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 ROS1
Gene-level evidence surfaced through the gene ROS1that 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.
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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.
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Drug development
4 compounds recorded · 3 approved · 1 in clinical development
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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 molecules — Strong
Antibodies — Emerging
Protein degraders — Emerging
View underlying tractability evidence (8)Hide
Raw Open Targets tractability assessment buckets, by modality.
Clinical trials
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 (26)Hide
ClinicalTrials.gov via the drug-target graph.
What's happening now
Recent therapeutic activity around this target — regulatory actions, clinical trials and safety signals for 3 drugs that target 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.
- Regulatory approval
Approval: Augtyro (EMA)
- New publicationLorlatinib Versus Crizotinib in Patients With Advanced <i>ALK</i>-Positive Non-Small Cell Lung Cancer: 5-Year Outcomes From the Phase III CROWN Study.
- New publicationRepotrectinib in <i>ROS1</i> Fusion-Positive Non-Small-Cell Lung Cancer.
- New publicationBrigatinib Versus Crizotinib in ALK Inhibitor-Naive Advanced ALK-Positive NSCLC: Final Results of Phase 3 ALTA-1L Trial.
- Regulatory approval
Approval: Rozlytrek (EMA)
- Safety communication
Drug Safety Update: Crizotinib (Xalkori▼): risk of cardiac failure
- New publicationFirst-line crizotinib versus chemotherapy in ALK-positive lung cancer.
- Regulatory approval
Approval: Xalkori (EMA)
- New publicationROS1 rearrangements define a unique molecular class of lung cancers.
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.