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COMP p.Leu654=

c.1962G>A · rs368444727 · VCV2172966

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00602%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI<0.2all four deltas below 0.2 · C>A here scores Δ0.23 · evaluated, not missing
Constraint at this position
ConservationphyloP 0.77GERP -0.28, phastCons 1
Overall
CADD4.139PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00602% European (non-Finnish) · 71/1,180,052 alleles
Filtering AF 0.00486% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00447%
Overall 0.00458% 74/1,614,010 alleles · very rare
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.00602% 16,620
African / African-American 0.00267% 37,471
Remaining individualsnot grpmax-eligible 0.0016% 62,484

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
COMP
Protein
p.Leu654=
Coding
c.1962G>A
MANE Select
NM_000095
dbSNP
rs368444727
Type
single nucleotide variant
Location
chr19:18784316 (GRCh38)
Gene constraint
LOEUF 1.073 · pLI <0.01 · ClinGen HI 0/3 (gnomAD)
Structure
AlphaFold pLDDT 88.60 · 1 PDB
Residue 654
the tsp c-terminal domain; the 'mediates cell survival and induction of the iap family of survival proteins' region; an α-helix; a disulfide bond
Full COMP 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/comp-p-leu654 (accessed [today's date]).

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