Is ILK p.His77= (c.231T>C) pathogenic?

ILK p.His77= (c.231T>C) is classified Likely benign in ILK (ClinVar, Multiple submitters, 3 submitters; last evaluated 2024-02-05). Very rare (popmax 0.00237%, nfe); Associated with familial hypertrophic cardiomyopathy.

What condition is associated with ILK p.His77= (c.231T>C)?

ILK p.His77= (c.231T>C) is associated with familial hypertrophic cardiomyopathy (ClinVar).

How common is ILK p.His77= (c.231T>C) in the general population?

ILK p.His77= (c.231T>C) is very rare (popmax 0.00237%, nfe) (gnomAD).

ILK p.His77=

c.231T>C · rs757605280 · VCV1587685

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

gnomAD v4.1

Rare

very rare (popmax 0.00237%, nfe)

Conditions

familial hypertrophic cardiomyopathy

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
Conservation	phyloP -4.2	GERP -3.1
Overall
CADD	2.891	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00237% European (non-Finnish) · 28/1,180,040 alleles

Filtering AF 0.00164% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00142%

Overall 0.00186% 30/1,614,100 alleles · very rare

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.00237%	42,144
Admixed American	0.00167%	60,014
Remaining individualsnot grpmax-eligible	0.0016%	62,484

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: ILK
Protein: p.His77=
Coding: c.231T>C
MANE Select: NM_004517
dbSNP: rs757605280
Type: single nucleotide variant
Location: chr11:6608187 (GRCh38)
Gene constraint: LOEUF 0.798 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 88.13 · 17 PDB
Residue 77: the 'interaction with lims1' region

Full ILK gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

familial hypertrophic cardiomyopathy — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

ILK p.His77Arg Uncertain significance ★ ⚠ same residue
ILK p.Ala41Val Uncertain significance ★★ ⚠ same condition
ILK p.Arg149Gln Uncertain significance ★★ ⚠ same condition
ILK p.Arg161Cys Uncertain significance ★★ ⚠ same condition
ILK p.Arg161His Uncertain significance ★★ ⚠ same condition
ILK p.Arg334Gln Uncertain significance ★★ ⚠ same condition
ILK p.Arg436Gln Uncertain significance ★★ ⚠ same condition
ILK p.Arg46Cys Uncertain significance ★★ ⚠ same condition

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/ilk-p-his77 (accessed [today's date]).

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