Is NIT2 p.Arg157Gln (c.470G>A) pathogenic?

NIT2 p.Arg157Gln (c.470G>A) is classified Uncertain significance in NIT2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-08-02). AlphaMissense: likely pathogenic (0.8924); Very rare (popmax 0.00446%, eas).

How common is NIT2 p.Arg157Gln (c.470G>A) in the general population?

NIT2 p.Arg157Gln (c.470G>A) is very rare (popmax 0.00446%, eas) (gnomAD).

What do computational predictors say about NIT2 p.Arg157Gln (c.470G>A)?

AlphaMissense predicts likely pathogenic (score 0.8924) — an in-silico prediction, not a clinical call.

NIT2 p.Arg157Gln

c.470G>A · VCV4120186

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.8924 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00446%, eas)

Missense predictors

3/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.8924	likely pathogenic
REVEL	0.935	strongly pathogenic-leaning
SaProt	LLR -13.65	damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 12	GERP 0.9, phastCons 1
Regional constraint	o/e 0.90	unconstrained · MANE · 20 kb · p 0.07 · regional, not allelic
Overall
CADD	33.0	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00446% East Asian · 2/44,888 alleles

Filtering AF 0.00223% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00198%

Overall 0.00248% 40/1,613,974 alleles · very rare exomes 37/1,461,806 · genomes 3/152,168 · joint denominator

Ancestry group	Frequency	1 in
East Asiangrpmax	0.00446%	22,444
Remaining individualsnot grpmax-eligible	0.0032%	31,240
European (non-Finnish)	0.00305%	32,778

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: NIT2
Protein: p.Arg157Gln
Coding: c.470G>A
MANE Select: NM_020202
Type: single nucleotide variant
Location: chr3:100346220 (GRCh38)
Gene constraint: LOEUF 1.249 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 97.62
Residue 157: the cn hydrolase domain

Full NIT2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

NIT2 p.Ala209Val Uncertain significance ★ ⚠ same type
NIT2 p.Ala51Gly Uncertain significance ★ ⚠ same type
NIT2 p.Ala51Val Uncertain significance ★ ⚠ same type
NIT2 p.Arg195Trp Uncertain significance ★ ⚠ same type
NIT2 p.Arg210Trp Uncertain significance ★ same type
NIT2 p.Arg23Cys Uncertain significance ★ ⚠ same type
NIT2 p.Arg255Cys Uncertain significance ★ ⚠ same type
NIT2 p.Arg29Trp Uncertain significance ★ ⚠ same type

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/nit2-p-arg157gln (accessed [today's date]).

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