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NDP p.Ser75=

c.225C>T · rs765170187 · VCV1580262

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0461%, mid)

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 -7.7GERP -3.7
Overall
CADD0.023PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0461% Middle Eastern · 2/4,338 alleles
Filtering AF 0.00815% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00341%
Overall 0.000995% 12/1,206,214 alleles · ultra-rare exomes 11/1,094,293 · genomes 1/111,921 · joint denominator
Ancestry group Frequency 1 in
Middle Easterngrpmax 0.0461% 2,169
Admixed American 0.0066% 15,163
Remaining individualsnot grpmax-eligible 0.00633% 15,808
European (non-Finnish) 0.000448% 223,380

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
NDP
Protein
p.Ser75=
Coding
c.225C>T
MANE Select
NM_000266
dbSNP
rs765170187
Type
single nucleotide variant
Location
chrX:43949976 (GRCh38)
Structure
AlphaFold pLDDT 83.92 · 12 PDB
Residue 75
the ctck domain; a UniProt-annotated variant site (in nd); a β-strand
Full NDP 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/ndp-p-ser75 (accessed [today's date]).

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