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ELFN1 p.Ile99=

c.297C>T · rs202117598 · VCV710659

Benign Single submitter
Classification
Benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
low-frequency (popmax 1.55%, sas)

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 -7.6GERP -3.1
Overall
CADD7.374PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 1.55% South Asian · 1,307/84,564 alleles
Filtering AF 1.48% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.45%
Overall 0.22% 3,426/1,559,432 alleles · low-frequency
Ancestry group Frequency 1 in
South Asiangrpmax 1.55% 65
Ashkenazi Jewishnot grpmax-eligible 0.587% 170
Middle Eastern 0.583% 171
Remaining individualsnot grpmax-eligible 0.241% 414
European (non-Finnish) 0.144% 693
Finnishnot grpmax-eligible 0.0964% 1,037
Admixed American 0.0367% 2,726
East Asian 0.0286% 3,493
African / African-American 0.0258% 3,875

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
ELFN1
Protein
p.Ile99=
Coding
c.297C>T
MANE Select
NM_001128636
dbSNP
rs202117598
Type
single nucleotide variant
Location
chr7:1744893 (GRCh38)
Gene constraint
LOEUF 1.841 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 62.62 · 5 PDB
Full ELFN1 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/elfn1-p-ile99 (accessed [today's date]).

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