Variant
RAF1 P261S
NM_002880.4(RAF1):c.781C>T (p.Pro261Ser)
- p.P261S:CCT>TCT
- p.Pro261Ser
- p.P261S
- rs121434594
- ClinVar classification
- Pathogenic
- Review status
- 3 stars out of 4reviewed by expert panel
- Last evaluated
- 3 April 2017
- Expert panel
- ClinGen RASopathy Variant Curation Expert Panel
Data current to ClinVar release 2026-10-12 · Dante Labs data release 2026.10.16-c6eea6bfFacts last changed 16 October 2026
Reference genomeGRCh38hg38
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Summary
P261S is a missense variant in RAF1: it changes a single amino acid in the protein the gene encodes. ClinVar classifies it as pathogenic for Noonan Syndrome (reviewed by expert panel).
ClinVar classifications
| Condition | Classification | Review status | Submissions | Last evaluated |
|---|---|---|---|---|
| Noonan SyndromeClinVar VCV000013958 (opens in a new tab) | Pathogenic | 3 stars out of 4reviewed by expert panel | 1 submission | 3 April 2017 |
Classifications as ClinVar records them in release 2026-10-12. ClinVar updates them as evidence is reviewed.
Molecular details
| Gene | RAF1 |
|---|---|
| Transcript | NM_002880.4MANE Select |
| Coding DNA change (HGVS c.) | c.781C>T |
| Protein change (HGVS p.) | p.Pro261Serp.P261S |
| Predicted consequence | Missensemissense_variant (opens in a new tab) |
| Predicted impact | Moderate |
| Position (GRCh38) | chr3:12604189 G>A |
| Position (GRCh37) | chr3:12645688 G>A |
| dbSNP ID | rs121434594 (opens in a new tab) |
| ClinVar Variation ID | VCV000013958 (opens in a new tab) |
| ClinVar Allele ID | 28997 |
| ClinGen Allele Registry ID | CA257062 (opens in a new tab) |
| ClinVar name | NM_002880.4(RAF1):c.781C>T (p.Pro261Ser) |
| Other names | p.P261S:CCT>TCT |
RAF1 P261S in other databases
Reports that look at this variant (2)
These Genome Test condition reports include P261S among the variants they look at.
| Report | Conditions | Inheritance |
|---|---|---|
| Hypertrophic Cardiomyopathy | Hypertrophic Cardiomyopathy | Autosomal dominant |
| Noonan Syndrome | Noonan Syndrome | Autosomal dominant |
| Noonan Syndrome and Noonan-Related Syndromes |
Other variants in RAF1
All RAF1 variantsLimitations
This page describes publicly available information about a genetic variant. It is not a diagnosis, and it says nothing about whether you or anyone else carries this variant.
Classifications come from ClinVar and change as new evidence is reviewed. A classification here may differ from the one in ClinVar today, or from the one a laboratory reports.
Whole genome sequencing with short reads can miss or miscall some variants, particularly in repeated or highly similar stretches of DNA and in large insertions, deletions or rearrangements.
If you have questions about a variant in your own results or in your family, talk to a genetic counsellor or your doctor.
Sources & credits
- Classifications from ClinVar (release 2026-10-12), National Center for Biotechnology Information.
- Condition terms from the Mondo Disease Ontology (release 2026-10-06), used under CC BY 4.0.
- Gene symbols and names from the HUGO Gene Nomenclature Committee (release 2026-10-16).
- Allele identifiers from the ClinGen Allele Registry (release 2026-10-16-c4908f54).
- Reference SNP identifiers from dbSNP (release b157), National Center for Biotechnology Information.
- Gene–disease links from the Gene Curation Coalition, GenCC (release 2026-10-16).
- Difficult regions from the Genome in a Bottle Consortium (release v3.6).
- Transcripts from MANE (release v1.5), NCBI and EMBL-EBI.
- Predicted consequences from mehari (release 0.11.0), with transcript models from cdot.
- Built from Dante Labs data release 2026.10.16-c6eea6bf of 16 October 2026.
Cite this page
Dante Labs. (16 October 2026). RAF1 P261S (c.781C>T, rs121434594) (Version 2026.10.16-c6eea6bf). Retrieved 16 October 2026, from https://dantelabs.com/genes/raf1/variants/p261s
Dante Labs. RAF1 P261S (c.781C>T, rs121434594) [Internet]. Version 2026.10.16-c6eea6bf. 16 October 2026 [cited 16 October 2026]. Available from: https://dantelabs.com/genes/raf1/variants/p261s
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