Is ATM p.Ser877= (c.2631T>C) pathogenic?

ATM p.Ser877= (c.2631T>C) is classified Likely benign in ATM (ClinVar, Single submitter, 1 submitter; last evaluated 2015-10-31). Very rare (popmax 8.48e-05%, nfe); Associated with hereditary neoplastic syndrome.

What condition is associated with ATM p.Ser877= (c.2631T>C)?

ATM p.Ser877= (c.2631T>C) is associated with hereditary neoplastic syndrome (ClinVar).

How common is ATM p.Ser877= (c.2631T>C) in the general population?

ATM p.Ser877= (c.2631T>C) is very rare (popmax 8.48e-05%, nfe) (gnomAD).

ATM p.Ser877=

c.2631T>C · rs2081313715 · VCV1794065

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 8.48e-05%, nfe)

Conditions

hereditary neoplastic syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.3	GERP -0.11
Overall
CADD	5.642	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 8.48e-05% European (non-Finnish) · 1/1,179,808 alleles

Overall 6.2e-05% 1/1,613,928 alleles · very rare exomes 1/1,461,604 · genomes 0/152,324 · 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.Ser877=
Coding: c.2631T>C
MANE Select: NM_000051
dbSNP: rs2081313715
Type: single nucleotide variant
Location: chr11:108267335 (GRCh38)
Gene constraint: LOEUF 0.847 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Residue 877: a UniProt-annotated variant site (in at); 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

Similar variants

ATM p.Ser877Arg Uncertain significance ★★ ⚠ same residue
ATM p.Ser877Gly Uncertain significance ★★ ⚠ same residue
ATM p.Ser877Thr Conflicting classifications of pathogenicity ★ ⚠ same residue
ATM p.Ser877Asn Uncertain significance ★ ⚠ 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

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-ser877 (accessed [today's date]).

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