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NFASC p.Pro727=

c.2181C>T · rs12084475 · VCV3049745

Likely benign No assertion criteria
Classification
Likely benign
ClinVar
Review
No assertion criteria ☆☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
rare (popmax 0.565%, afr)
Conditions
1
NFASC-related disorder

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.108moderately benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -5.2GERP -4.8
Overall
CADD0.651PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.565% African / African-American · 424/75,012 alleles
Filtering AF 0.521% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.503%
Overall 0.0315% 509/1,613,518 alleles · rare exomes 258/1,461,250 · genomes 251/152,268 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.565% 177
Remaining individualsnot grpmax-eligible 0.048% 2,082
Ashkenazi Jewishnot grpmax-eligible 0.0473% 2,114
Admixed American 0.03% 3,331
East Asian 0.0267% 3,739
Middle Eastern 0.0165% 6,062
Finnishnot grpmax-eligible 0.00156% 63,992
European (non-Finnish) 0.000763% 131,078

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
NFASC
Protein
p.Pro727=
Coding
c.2181C>T
MANE Select
NM_001005388
dbSNP
rs12084475
Type
single nucleotide variant
Location
chr1:204980374 (GRCh38)
Gene constraint
LOEUF 0.362 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 77.23 · 2 PDB
Residue 727
the 'disordered' region
Full NFASC gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

NFASC-related disorder

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/nfasc-p-pro727 (accessed [today's date]).

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