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EP400 p.Ala457=

c.1371C>T · rs140869465 · VCV2643617

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0134%, afr)

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 -8.3
Overall
CADD5.081PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0134% African / African-American · 10/74,544 alleles
Filtering AF 0.0115% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0108%
Overall 0.0116% 186/1,609,258 alleles · ultra-rare
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.0134% 7,454
European (non-Finnish) 0.0132% 7,550
Finnishnot grpmax-eligible 0.0109% 9,135
Remaining individualsnot grpmax-eligible 0.00964% 10,375
Admixed American 0.00505% 19,787
South Asian 0.00442% 22,637

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
EP400
Protein
p.Ala457=
Coding
c.1371C>T
MANE Select
NM_015409
dbSNP
rs140869465
Type
single nucleotide variant
Location
chr12:131979729 (GRCh38)
Gene constraint
LOEUF 0.365 · pLI 1.00 (gnomAD)
Full EP400 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/ep400-p-ala457 (accessed [today's date]).

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