Is MOGS p.Glu191= (c.573G>A) pathogenic?

MOGS p.Glu191= (c.573G>A) is classified Likely benign in MOGS (ClinVar, Single submitter, 1 submitter; last evaluated 2023-05-07). Ultra-rare (popmax 0.0103%, nfe); Associated with MOGS-congenital disorder of glycosylation.

What condition is associated with MOGS p.Glu191= (c.573G>A)?

MOGS p.Glu191= (c.573G>A) is associated with MOGS-congenital disorder of glycosylation (ClinVar).

How common is MOGS p.Glu191= (c.573G>A) in the general population?

MOGS p.Glu191= (c.573G>A) is ultra-rare (popmax 0.0103%, nfe) (gnomAD).

How is MOGS-CDG inherited?

Typically Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

MOGS p.Glu191=

c.573G>A · rs754853287 · VCV2743123

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

ultra-rare (popmax 0.0103%, nfe)

Conditions

MOGS-congenital disorder of glycosylation

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 1.7	GERP 1.7, phastCons 1
Overall
CADD	11.02	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0103% European (non-Finnish) · 122/1,180,032 alleles

Filtering AF 0.00884% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00828%

Overall 0.00818% 132/1,613,966 alleles · ultra-rare exomes 128/1,461,740 · genomes 4/152,226 · joint denominator

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.0103%	9,672
Remaining individualsnot grpmax-eligible	0.0096%	10,414
African / African-American	0.00534%	18,736

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: MOGS
Protein: p.Glu191=
Coding: c.573G>A
MANE Select: NM_006302
dbSNP: rs754853287
Type: single nucleotide variant
Location: chr2:74464502 (GRCh38)
Gene constraint: LOEUF 0.85 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 92.42

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

Disease context

MOGS-congenital disorder of glycosylation — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For MOGS-CDG (Orphanet):

Inheritance: Autosomal recessive
Onset: Infancy, Neonatal

Similar variants

MOGS p.Arg495Ter Pathogenic/Likely pathogenic ★★ same condition
MOGS p.Gln124Ter Pathogenic ★★ same condition
MOGS p.Gln505Ter Pathogenic/Likely pathogenic ★★ same condition
MOGS p.Ala22Glu Uncertain significance ★★ ⚠ same condition
MOGS p.Ala292Asp Uncertain significance ★★ ⚠ same condition
MOGS p.Ala292Pro Uncertain significance ★★ ⚠ same condition
MOGS p.Ala41Val Uncertain significance ★★ ⚠ same condition
MOGS p.Ala510Thr 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/mogs-p-glu191 (accessed [today's date]).

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