Is PALB2 p.Pro1153= (c.3459T>C) pathogenic?

PALB2 p.Pro1153= (c.3459T>C) is classified Likely benign in PALB2 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-09-27). Very rare (popmax 6.84e-05%); Associated with hereditary breast carcinoma.

What condition is associated with PALB2 p.Pro1153= (c.3459T>C)?

PALB2 p.Pro1153= (c.3459T>C) is associated with hereditary breast carcinoma (ClinVar).

How common is PALB2 p.Pro1153= (c.3459T>C) in the general population?

PALB2 p.Pro1153= (c.3459T>C) is very rare (popmax 6.84e-05%) (gnomAD).

How is Hereditary breast cancer inherited?

Typically Autosomal dominant, Multigenic/multifactorial (Orphanet). A genetic counselor can assess individual risk for a family.

PALB2 p.Pro1153=

c.3459T>C · rs2142253354 · VCV2730993

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 6.84e-05%)

Conditions

hereditary breast carcinoma

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 -0.78	GERP -2.7
Overall
CADD	4.382	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 6.84e-05%

Overall 6.84e-05% 1/1,461,848 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: PALB2
Protein: p.Pro1153=
Coding: c.3459T>C
MANE Select: NM_024675
dbSNP: rs2142253354
Type: single nucleotide variant
Location: chr16:23603561 (GRCh38)
Gene constraint: LOEUF 0.9 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 54.07 · 4 PDB
Residue 1153: the 'required for interaction with polh and polh dna synthesis stimulation' region; the 'interaction with rad51, brca2 and polh' region; a UniProt-annotated variant site (risk factor for brovca5); a UniProt-annotated variant site (in fancn; risk factor for brovca5); a UniProt-annotated variant site (risk factor for brovca5; risk factor for pnca3)

Full PALB2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

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

For Hereditary breast cancer (Orphanet):

Inheritance: Autosomal dominant, Multigenic/multifactorial
Onset: Adult, Elderly

Similar variants

PALB2 p.Pro1153Leu Uncertain significance ★★ ⚠ same residue
PALB2 p.Pro1153Ser Uncertain significance ★★ ⚠ same residue
PALB2 p.Pro1153Ala Conflicting classifications of pathogenicity ★ ⚠ same residue
PALB2 p.Pro1153fs Pathogenic ★★ same residue
PALB2 p.Pro1153Arg Uncertain significance ★ ⚠ same residue
PALB2 p.Pro1153His Uncertain significance ★ ⚠ same residue
PALB2 c.3350+4A>G Likely pathogenic ★★★ same condition
PALB2 p.Arg1117Lys 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/palb2-p-pro1153 (accessed [today's date]).

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