Is LDLR p.Cys364= (c.1092C>T) pathogenic?

LDLR p.Cys364= (c.1092C>T) is classified Likely benign in LDLR (ClinVar, Single submitter, 2 submitters; last evaluated 2023-03-27). Very rare (popmax 0.000424%, nfe); Associated with familial hypercholesterolemia.

What condition is associated with LDLR p.Cys364= (c.1092C>T)?

LDLR p.Cys364= (c.1092C>T) is associated with familial hypercholesterolemia, hypercholesterolemia, familial, 1 (ClinVar).

How common is LDLR p.Cys364= (c.1092C>T) in the general population?

LDLR p.Cys364= (c.1092C>T) is very rare (popmax 0.000424%, nfe) (gnomAD).

LDLR p.Cys364=

c.1092C>T · rs1555804729 · VCV440625

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

very rare (popmax 0.000424%, nfe)

Conditions

familial hypercholesterolemia

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 1	GERP 0.42, phastCons 1
Overall
CADD	11.61	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.000424% European (non-Finnish) · 5/1,179,760 alleles

Filtering AF 0.000124% ClinGen BA1/BS1 input FAF95, joint · FAF99 9e-05%

Overall 0.00031% 5/1,613,754 alleles · very rare exomes 5/1,461,408 · genomes 0/152,346 · joint denominator

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: LDLR
Protein: p.Cys364=
Coding: c.1092C>T
MANE Select: NM_000527
dbSNP: rs1555804729
Type: single nucleotide variant
Location: chr19:11111545 (GRCh38)
Gene constraint: LOEUF 1.091 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 75.81 · 36 PDB
Residue 364: the egf-like 2; calcium-binding domain; a UniProt-annotated variant site (in fhcl1; uncertain significance; mexico-3); a β-strand; a disulfide bond

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

Disease context

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

Also linked: hypercholesterolemia, familial, 1

Similar variants

LDLR p.Cys364Arg Likely pathogenic ★★★ same residue
LDLR p.Cys364Gly Likely pathogenic ★★ same residue
LDLR p.Cys364Ser Likely pathogenic ★★ same residue
LDLR p.Cys364Tyr Pathogenic/Likely pathogenic ★★ same residue
LDLR p.Cys364Phe Likely pathogenic ★ same residue
LDLR p.Cys364Ter Pathogenic ★ same residue
LDLR c.1186+5G>A Likely pathogenic ★★★ same condition
LDLR c.1359-1G>A Pathogenic ★★★ 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/ldlr-p-cys364 (accessed [today's date]).

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