Is ATM p.Val986= (c.2958T>G) pathogenic?

ATM p.Val986= (c.2958T>G) is classified Benign/Likely benign in ATM (ClinVar, Multiple submitters, 7 submitters; last evaluated 2025-12-23). Ultra-rare (popmax 0.0217%, amr); Associated with hereditary neoplastic syndrome.

What condition is associated with ATM p.Val986= (c.2958T>G)?

ATM p.Val986= (c.2958T>G) is associated with hereditary neoplastic syndrome, ataxia telangiectasia, hereditary breast carcinoma (ClinVar).

How common is ATM p.Val986= (c.2958T>G) in the general population?

ATM p.Val986= (c.2958T>G) is ultra-rare (popmax 0.0217%, amr) (gnomAD).

ATM p.Val986=

c.2958T>G · rs745971584 · VCV220335

Benign/Likely benign Multiple submitters

Classification

Benign/Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 7 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.0217%, amr)

Conditions

hereditary neoplastic syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	<0.2	all four deltas below 0.2 · T>A here scores Δ0.34 · evaluated, not missing
Constraint at this position
Conservation	phyloP 0.7	GERP -2.9, phastCons 1
Overall
CADD	7.289	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0217% Admixed American · 13/60,024 alleles

Filtering AF 0.0127% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0101%

Overall 0.000805% 13/1,614,052 alleles · ultra-rare exomes 13/1,461,758 · genomes 0/152,294 · 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: ATM
Protein: p.Val986=
Coding: c.2958T>G
MANE Select: NM_000051
dbSNP: rs745971584
Type: single nucleotide variant
Location: chr11:108271287 (GRCh38)
Gene constraint: LOEUF 0.847 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Residue 986: a UniProt-annotated variant site (in at); an α-helix; a UniProt-annotated variant site (in at; uncertain significance)

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

Disease context

hereditary neoplastic syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: ataxia telangiectasia hereditary breast carcinoma

Similar variants

ATM p.Val986Ala Uncertain significance ★★ same residue
ATM p.Val986Phe Uncertain significance ★ same residue
ATM p.Val986fs Pathogenic ★★ same residue
ATM c.1607+1G>T Pathogenic ★★★ same condition
ATM c.2251-4A>G Likely pathogenic ★★★ same condition
ATM c.2466+5G>C Likely pathogenic ★★★ same condition
ATM c.3078-1G>A Pathogenic ★★★ same condition
ATM c.332-1G>A Pathogenic ★★★ same condition

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/atm-p-val986 (accessed [today's date]).

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