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CLVS1 p.Asn178Ser

c.533A>G · VCV3267945

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
likely benign
0.1391 · ACMG-weighted
gnomAD v4.1
Rare
very rare (popmax 0.000169%, nfe)
Missense predictors
0/2 damaging
AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense0.1391likely benign
REVEL0.33indeterminate
SaProtLLR -6.92tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 9.3GERP 2, phastCons 1
Regional constrainto/e 0.68unconstrained · MANE · 158 kb · p 5.9e-07 · regional, not allelic
Overall
CADD23.8PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000169% European (non-Finnish) · 2/1,179,994 alleles
Filtering AF 2.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.1e-05%
Overall 0.000137% 2/1,461,832 alleles · very rare

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
CLVS1
Protein
p.Asn178Ser
Coding
c.533A>G
MANE Select
NM_173519
Type
single nucleotide variant
Location
chr8:61376682 (GRCh38)
Gene constraint
LOEUF 0.473 · pLI 0.99 (gnomAD)
Structure
AlphaFold pLDDT 82.01
Residue 178
the cral-trio domain
Full CLVS1 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/clvs1-p-asn178ser (accessed [today's date]).

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