Is BABAM2 p.Leu40Ser (c.119T>C) pathogenic?

BABAM2 p.Leu40Ser (c.119T>C) is classified Uncertain significance in BABAM2 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-11-13). AlphaMissense: likely pathogenic (0.9753); Very rare (popmax 0.000169%, nfe).

How common is BABAM2 p.Leu40Ser (c.119T>C) in the general population?

BABAM2 p.Leu40Ser (c.119T>C) is very rare (popmax 0.000169%, nfe) (gnomAD).

What do computational predictors say about BABAM2 p.Leu40Ser (c.119T>C)?

AlphaMissense predicts likely pathogenic (score 0.9753) — an in-silico prediction, not a clinical call.

BABAM2 p.Leu40Ser

c.119T>C · VCV3473978

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9753 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000169%, nfe)

Missense predictors

2/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.9753	likely pathogenic
REVEL	0.364	indeterminate
SaProt	LLR -11.77	damaging
⇒ AlphaMissense and SaProt both call this damaging; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.9	GERP 2.7, phastCons 1
Regional constraint	o/e 0.80	unconstrained · MANE · 444 kb · p 1.7e-05 · regional, not allelic
Overall
CADD	25.8	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 0.000169% European (non-Finnish) · 2/1,180,000 alleles

Filtering AF 2.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.1e-05%

Overall 0.000137% 2/1,461,846 alleles · very rare

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: BABAM2
Protein: p.Leu40Ser
Coding: c.119T>C
MANE Select: NM_199191
Type: single nucleotide variant
Location: chr2:27894675 (GRCh38)
Gene constraint: LOEUF 0.753 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 92.76 · 13 PDB
Residue 40: the 'uev-like 1' region; a β-strand

Full BABAM2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

BABAM2 c.1089-11028A>G Uncertain significance ★ same type
BABAM2 c.1089-11081G>A Uncertain significance ★ same type
BABAM2 c.1089-11108C>G Uncertain significance ★ same type
BABAM2 c.1089-11127G>A Uncertain significance ★ same type
BABAM2 c.1089-11144C>T Uncertain significance ★ same type
BABAM2 c.1089-11169C>G Uncertain significance ★ same type
BABAM2 p.Arg131Cys Uncertain significance ★ ⚠ same type
BABAM2 p.Arg133Gln 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/babam2-p-leu40ser (accessed [today's date]).

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