Is NMUR1 p.Ser390Arg (c.1170C>G) pathogenic?

NMUR1 p.Ser390Arg (c.1170C>G) is classified Uncertain significance in NMUR1 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-08-23). AlphaMissense: likely benign (0.2377); Rare (popmax 0.214%, mid).

How common is NMUR1 p.Ser390Arg (c.1170C>G) in the general population?

NMUR1 p.Ser390Arg (c.1170C>G) is rare (popmax 0.214%, mid) (gnomAD).

What do computational predictors say about NMUR1 p.Ser390Arg (c.1170C>G)?

AlphaMissense predicts likely benign (score 0.2377) — an in-silico prediction, not a clinical call.

NMUR1 p.Ser390Arg

c.1170C>G · rs368328861 · VCV2588196

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2377 · ACMG-weighted

gnomAD v4.1

Rare

rare (popmax 0.214%, mid)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.2377	likely benign
REVEL	0.061	moderately benign-leaning
SaProt	LLR -6.50	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 6	GERP 1.3, phastCons 1
Regional constraint	o/e 0.91	unconstrained · MANE · 5,315 bp · p 0.033 · regional, not allelic
Overall
CADD	22.0	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — 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 0.214% Middle Eastern · 13/6,062 alleles

Filtering AF 0.127% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.101%

Overall 0.0102% 164/1,614,156 alleles · rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.214%	466
Admixed American	0.05%	2,001
Remaining individualsnot grpmax-eligible	0.0144%	6,945
Ashkenazi Jewishnot grpmax-eligible	0.0101%	9,865
European (non-Finnish)	0.0083%	12,041
African / African-American	0.00799%	12,509
South Asian	0.00549%	18,216

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: NMUR1
Protein: p.Ser390Arg
Coding: c.1170C>G
MANE Select: NM_006056
dbSNP: rs368328861
Type: single nucleotide variant
Location: chr2:231525154 (GRCh38)
Gene constraint: LOEUF 1.399 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 81.23 · 2 PDB

Full NMUR1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

NMUR1 p.Arg259Trp Benign/Likely benign ★★ same type
NMUR1 p.Ala176Val Uncertain significance ★ ⚠ same type
NMUR1 p.Ala236Val Uncertain significance ★ ⚠ same type
NMUR1 p.Ala25Thr Uncertain significance ★ ⚠ same type
NMUR1 p.Ala269Val Uncertain significance ★ ⚠ same type
NMUR1 p.Ala350Val Uncertain significance ★ ⚠ same type
NMUR1 p.Ala412Ser Uncertain significance ★ ⚠ same type
NMUR1 p.Arg159His 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/nmur1-p-ser390arg (accessed [today's date]).

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