Is FKRP p.Pro189= (c.567C>T) pathogenic?

FKRP p.Pro189= (c.567C>T) is classified Conflicting classifications of pathogenicity in FKRP (ClinVar, Conflicting submitters, 11 submitters; last evaluated 2026-06-01). Rare (popmax 0.489%, afr); Associated with Cardiovascular phenotype.

How common is FKRP p.Pro189= (c.567C>T) in the general population?

FKRP p.Pro189= (c.567C>T) is rare (popmax 0.489%, afr) (gnomAD).

FKRP p.Pro189=

Q: What condition is associated with FKRP p.Pro189= (c.567C>T)?

FKRP p.Pro189= (c.567C>T) is associated with Cardiovascular phenotype, muscular dystrophy-dystroglycanopathy, type A, autosomal recessive limb-girdle muscular dystrophy type 2I (ClinVar).

c.567C>T · rs201454433 · VCV261691

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 11 submitters

gnomAD v4.1

Rare

rare (popmax 0.489%, afr)

Conditions

Cardiovascular phenotype

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 -0.16	GERP -0.18
Overall
CADD	4.432	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.489% African / African-American · 360/73,642 alleles

Filtering AF 0.447% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.431%

Overall 0.0303% 476/1,572,228 alleles · rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.489%	205
Middle Eastern	0.117%	857
Remaining individualsnot grpmax-eligible	0.067%	1,492
Ashkenazi Jewishnot grpmax-eligible	0.0346%	2,886
Admixed American	0.0265%	3,771
European (non-Finnish)	0.0036%	27,809
South Asian	0.00115%	87,228

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: FKRP
Protein: p.Pro189=
Coding: c.567C>T
MANE Select: NM_024301
dbSNP: rs201454433
Type: single nucleotide variant
Location: chr19:46756017 (GRCh38)
Gene constraint: LOEUF 1.543 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 94.08 · 8 PDB
Residue 189: a disulfide bond; a turn

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

Disease context

Cardiovascular phenotype — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: muscular dystrophy-dystroglycanopathy, type A autosomal recessive limb-girdle muscular dystrophy type 2I

Similar variants

FKRP p.Ala157Pro Pathogenic/Likely pathogenic ★★ same condition
FKRP p.Ala321Glu Pathogenic/Likely pathogenic ★★ ⚠ same condition
FKRP p.Ala455Asp Pathogenic ★★ same condition
FKRP p.Arg176Ter Pathogenic/Likely pathogenic ★★ same condition
FKRP p.Arg275Cys Pathogenic/Likely pathogenic ★★ same condition
FKRP p.Arg54Gly Likely pathogenic ★★ ⚠ same condition
FKRP p.Asn463Asp Pathogenic/Likely pathogenic ★★ same condition
FKRP p.Gln105Ter Pathogenic/Likely 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/fkrp-p-pro189 (accessed [today's date]).

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