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C8G p.Ser154=

c.462G>A · rs1486354585 · VCV3048877

Likely benign No assertion criteria
Classification
Likely benign
ClinVar
Review
No assertion criteria ☆☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00446%, eas)
Conditions
1
C8G-related disorder

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 -13GERP -2.3
Overall
CADD0.195PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00446% East Asian · 2/44,794 alleles
Filtering AF 0.00074% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000367%
Overall 0.00081% 13/1,605,006 alleles · very rare
Ancestry group Frequency 1 in
East Asiangrpmax 0.00446% 22,397
European (non-Finnish) 0.000936% 106,862

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
C8G
Protein
p.Ser154=
Coding
c.462G>A
MANE Select
NM_000606
dbSNP
rs1486354585
Type
single nucleotide variant
Location
chr9:136946472 (GRCh38)
Gene constraint
LOEUF 1.809 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 90.06 · 15 PDB
Residue 154
a β-strand; a disulfide bond
Full C8G gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

C8G-related disorder

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/c8g-p-ser154 (accessed [today's date]).

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