Send feedback

CRLF1 p.Leu165=

c.495C>G · rs1308520157 · VCV2649588

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0165%, mid)

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
ConservationphyloP -0.41GERP -3.4, phastCons 0.011
Overall
CADD1.054PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0165% Middle Eastern · 1/6,062 alleles
Overall 6.2e-05% 1/1,614,134 alleles · ultra-rare exomes 1/1,461,870 · genomes 0/152,264 · joint denominator

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.Leu165=
Coding
c.495C>G
MANE Select
NM_004750
dbSNP
rs1308520157
Type
single nucleotide variant
Location
chr19:18598804 (GRCh38)
Gene constraint
LOEUF 1.045 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 81.15 · 1 PDB
Residue 165
the fibronectin type-iii 1 domain; a β-strand
Full CRLF1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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-leu165 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown