NHS p.Pro549Ser
c.1645C>T · rs1326084438 · VCV2746886
Benign
Single submitter
Classification
Benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0109%, amr)
Conditions
1
Nance-Horan syndrome
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| REVEL | 0.023 | moderately benign-leaning |
|---|---|---|
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 2.3 | GERP 0.9, phastCons 0.99 |
| Regional constraint | o/e 0.79 | unconstrained · MANE · 357 kb · p 1.3e-14 · regional, not allelic |
| Overall | ||
| CADD | 13.53 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0109%
Admixed American · 5/46,029 alleles
Filtering AF
0.00426%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0027%
Overall
0.000413%
5/1,211,398 alleles · ultra-rare
exomes 5/1,098,242 · genomes 0/113,156 · joint denominator
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
- NHS
- Protein
- p.Pro549Ser
- Coding
- c.1645C>T
- MANE Select
- NM_001291867
- dbSNP
- rs1326084438
- Type
- single nucleotide variant
- Location
- chrX:17725751 (GRCh38)
- Structure
- AlphaFold pLDDT 43.65
- Residue 549
- the 'disordered' region
Similar variants
- NHS p.Pro549= Likely benign ★ same residue
- NHS p.Arg248Ter Pathogenic ★★ same condition
- NHS p.Arg394Ter Pathogenic ★★ same condition
- NHS p.Arg900Ter Pathogenic ★★ same condition
- NHS p.Gln411Ter Pathogenic ★★ same condition
- NHS p.Gln80Ter Pathogenic/Likely pathogenic ★★ same condition
- NHS p.Ala564Val Uncertain significance ★★ same condition
- NHS p.Ala745Val 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/nhs-p-pro549ser (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown