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FMN2 p.Pro1130=

c.3390C>T · rs200984130 · VCV1176860

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 4 submitters
gnomAD v4.1
Rare
rare (popmax 0.199%, sas)

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 -20GERP -1.8
Overall
CADD0.22PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.199% South Asian · 135/67,824 alleles
Filtering AF 0.172% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.161%
Overall 0.0273% 255/934,204 alleles · rare exomes 253/909,314 · genomes 2/24,890 · joint denominator
Ancestry group Frequency 1 in
South Asiangrpmax 0.199% 502
Middle Eastern 0.0427% 2,342
Ashkenazi Jewishnot grpmax-eligible 0.0365% 2,742
East Asian 0.027% 3,706
Remaining individualsnot grpmax-eligible 0.0239% 4,187
European (non-Finnish) 0.0134% 7,470
African / African-American 0.0106% 9,435
Admixed American 0.00493% 20,268
Finnishnot grpmax-eligible 0.0043% 23,244

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
FMN2
Protein
p.Pro1130=
Coding
c.3390C>T
MANE Select
NM_020066
dbSNP
rs200984130
Type
single nucleotide variant
Location
chr1:240208202 (GRCh38)
Gene constraint
LOEUF 0.51 · pLI 0.51 (gnomAD)
Structure
AlphaFold pLDDT 51.48 · 2 PDB
Residue 1130
the fh1 domain; the 'disordered' region
Full FMN2 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/fmn2-p-pro1130 (accessed [today's date]).

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