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EFEMP1 p.Ser261=

c.783C>T · rs776487850 · VCV1157091

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00187%, nfe)

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 5.9GERP 1.7, phastCons 1
Overall
CADD11.44PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00187% European (non-Finnish) · 22/1,176,698 alleles
Filtering AF 0.00122% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00104%
Overall 0.00143% 23/1,608,220 alleles · very rare
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.00187% 53,486
Remaining individualsnot grpmax-eligible 0.00161% 62,190

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
EFEMP1
Protein
p.Ser261=
Coding
c.783C>T
MANE Select
NM_001039348
dbSNP
rs776487850
Type
single nucleotide variant
Location
chr2:55876720 (GRCh38)
Gene constraint
LOEUF 0.373 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 77.67
Residue 261
a disulfide bond; a UniProt-annotated variant site (in arcl1d; likely pathogenic); the egf-like 4; calcium-binding domain; the 'mediates interaction with timp3' region
Full EFEMP1 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/efemp1-p-ser261 (accessed [today's date]).

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