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UNC80 p.Ser277=

c.831T>C · rs1198134364 · VCV1670549

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
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<0.2no splice effect predicted · four deltas, not one · how we know
Constraint at this position
ConservationphyloP -1.1GERP -2.8
Overall
CADD4.538PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0165% Middle Eastern · 1/6,062 alleles
Filtering AF 0.000365% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000137%
Overall 0.000186% 3/1,614,184 alleles · ultra-rare exomes 3/1,461,820 · genomes 0/152,364 · joint denominator
Ancestry group Frequency 1 in
Middle Easterngrpmax 0.0165% 6,062
South Asian 0.0022% 45,540

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
UNC80
Protein
p.Ser277=
Coding
c.831T>C
MANE Select
NM_001371986
dbSNP
rs1198134364
Type
single nucleotide variant
Location
chr2:209793752 (GRCh38)
Gene constraint
LOEUF 0.48 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Full UNC80 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/unc80-p-ser277 (accessed [today's date]).

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