Is SLMAP p.Glu256Asp (c.768G>T) pathogenic?

SLMAP p.Glu256Asp (c.768G>T) is classified Uncertain significance in SLMAP (ClinVar, Single submitter, 1 submitter; last evaluated 2025-06-07). AlphaMissense: ambiguous (0.5614); Very rare (popmax 0.00179%, amr).

How common is SLMAP p.Glu256Asp (c.768G>T) in the general population?

SLMAP p.Glu256Asp (c.768G>T) is very rare (popmax 0.00179%, amr) (gnomAD).

What do computational predictors say about SLMAP p.Glu256Asp (c.768G>T)?

AlphaMissense predicts ambiguous (score 0.5614) — an in-silico prediction, not a clinical call.

SLMAP p.Glu256Asp

c.768G>T · VCV3958294

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.5614 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00179%, amr)

Missense predictors

0/2 damaging

REVEL, SaProt · AlphaMissense indeterminate

Computational evidence

Protein change
AlphaMissense	0.5614	ambiguous
REVEL	0.279	benign-leaning
SaProt	LLR -8.30	tolerated
⇒ REVEL and SaProt both call this tolerated; AlphaMissense is indeterminate.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 9.9	GERP 1.8, phastCons 1
Regional constraint	o/e 0.85	unconstrained · MANE · 94 kb · p 9.6e-06 · regional, not allelic
Overall
CADD	26.8	PHRED · no single calibrated threshold — expert panels disagree

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00179% Admixed American · 1/55,720 alleles

Overall 6.25e-05% 1/1,598,892 alleles · very rare exomes 0/1,446,902 · genomes 1/151,990 · joint denominator

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: SLMAP
Protein: p.Glu256Asp
Coding: c.768G>T
MANE Select: NM_001377540
Type: single nucleotide variant
Location: chr3:57860779 (GRCh38)
Gene constraint: LOEUF 0.531 · pLI 0.86 (gnomAD)
Structure: AlphaFold pLDDT 77.74 · 3 PDB

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

Similar variants

SLMAP c.*38C>T Uncertain significance ★★ ⚠ same type
SLMAP c.*55G>A Uncertain significance ★★ ⚠ same type
SLMAP c.*70G>A Uncertain significance ★★ ⚠ same type
SLMAP p.Ala365Asp Uncertain significance ★★ ⚠ same type
SLMAP p.Ala506Ser Uncertain significance ★★ ⚠ same type
SLMAP p.Ala597Val Uncertain significance ★★ ⚠ same type
SLMAP p.Arg136Gln Uncertain significance ★★ ⚠ same type
SLMAP p.Arg138Cys 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/slmap-p-glu256asp (accessed [today's date]).

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