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MN1 p.Val595=

c.1785G>A · rs45554336 · VCV777678

Benign Multiple submitters
Classification
Benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 4 submitters
gnomAD v4.1
Common
common (popmax 29.3%, afr) — too common for a highly-penetrant pathogenic allele

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
ConservationphyloP 1.3GERP -0.33, phastCons 1
Overall
CADD8.694PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 29.3% African / African-American · 21,377/73,026 alleles
Filtering AF 28.9% ClinGen BA1/BS1 input FAF95, joint · FAF99 28.8%
Overall 1.58% 24,281/1,534,322 alleles · common exomes 11,573/1,382,026 · genomes 12,708/152,296 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 29.3% 3
Admixed American 2.1% 48
Remaining individualsnot grpmax-eligible 2.08% 48
Middle Eastern 1.15% 87
Ashkenazi Jewishnot grpmax-eligible 0.158% 633
South Asian 0.0607% 1,646
European (non-Finnish) 0.0371% 2,696

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
MN1
Protein
p.Val595=
Coding
c.1785G>A
MANE Select
NM_002430
dbSNP
rs45554336
Type
single nucleotide variant
Location
chr22:27798759 (GRCh38)
Gene constraint
LOEUF 0.482 · pLI 0.99 (gnomAD)
Structure
AlphaFold pLDDT 42.47
Residue 595
a UniProt-annotated variant site (in cebalid); the 'disordered' region
Full MN1 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/mn1-p-val595 (accessed [today's date]).

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