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NSUN3 p.Lys188=

c.564A>G · rs1288044535 · VCV1972267

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00267%, afr)

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 6.2GERP 1.7, phastCons 1
Overall
CADD8.895PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00267% African / African-American · 2/75,046 alleles
Filtering AF 0.000442% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000166%
Overall 0.000186% 3/1,613,792 alleles · very rare exomes 3/1,461,446 · genomes 0/152,346 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.00267% 37,523
European (non-Finnish) 8.48e-05% 1,179,842

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
NSUN3
Protein
p.Lys188=
Coding
c.564A>G
MANE Select
NM_022072
dbSNP
rs1288044535
Type
single nucleotide variant
Location
chr3:94094237 (GRCh38)
Gene constraint
LOEUF 0.795 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 90.97
Residue 188
a UniProt-annotated variant site (in coxpd48)
Full NSUN3 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/nsun3-p-lys188 (accessed [today's date]).

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