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LEMD3 p.Arg874=

c.2622C>G · rs143860838 · VCV757097

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0773%, afr)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI<0.2all four deltas below 0.2 · C>T here scores Δ0.23 · evaluated, not missing
Constraint at this position
ConservationphyloP 0.12GERP 0.045, phastCons 0.93
Overall
CADD5.709PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0773% African / African-American · 58/74,996 alleles
Filtering AF 0.0613% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0556%
Overall 0.00372% 60/1,612,680 alleles · ultra-rare exomes 34/1,460,394 · genomes 26/152,286 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.0773% 1,293
Remaining individualsnot grpmax-eligible 0.0032% 31,239

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
LEMD3
Protein
p.Arg874=
Coding
c.2622C>G
MANE Select
NM_014319
dbSNP
rs143860838
Type
single nucleotide variant
Location
chr12:65246211 (GRCh38)
Gene constraint
LOEUF 0.584 · pLI 0.40 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 61.07 · 3 PDB
Residue 874
the 'interaction with smad1, smad2, smad3 and smad5' region; a UniProt-annotated variant site (in bos; patient does not show osteopoikilosis); a UniProt-annotated variant site (in bos); an α-helix
Full LEMD3 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/lemd3-p-arg874 (accessed [today's date]).

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