CRLF1 p.Lys264=
c.792G>A · rs370364717 · VCV2197085
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0454%, afr)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP 0.72 | GERP 0.26, phastCons 1 |
| Overall | ||
| CADD | 13.23 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0454%
African / African-American · 34/74,896 alleles
Filtering AF
0.0334%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0292%
Overall
0.00235%
38/1,613,904 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.0454% | 2,203 |
| Remaining individualsnot grpmax-eligible | 0.0048% | 20,827 |
| Admixed American | 0.00167% | 59,990 |
Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.
Variant & gene context
- Gene
- CRLF1
- Protein
- p.Lys264=
- Coding
- c.792G>A
- MANE Select
- NM_004750
- dbSNP
- rs370364717
- Type
- single nucleotide variant
- Location
- chr19:18596955 (GRCh38)
- Gene constraint
- LOEUF 1.045 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 81.15 · 1 PDB
- Residue 264
- the fibronectin type-iii 2 domain
Similar variants
- CRLF1 c.397+1G>A Pathogenic/Likely pathogenic ★★ same type
- CRLF1 p.Trp177Ter Pathogenic ★★ same type
- CRLF1 p.Arg119Cys Uncertain significance ★★ ⚠ same type
- CRLF1 p.Arg81His Uncertain significance ★★ ⚠ same type
- CRLF1 p.Asn168Lys Uncertain significance ★★ ⚠ same type
- CRLF1 p.Asp223Asn Uncertain significance ★★ ⚠ same type
- CRLF1 p.Gly158Ala Uncertain significance ★★ ⚠ same type
- CRLF1 p.Gly161Arg Uncertain significance ★★ ⚠ same type
Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →
Cite Sugi Variant
Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/crlf1-p-lys264 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown