Is BRD4 p.Pro255= (c.765C>G) pathogenic?

BRD4 p.Pro255= (c.765C>G) is classified Likely benign in BRD4 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-08-06). Absent from gnomAD v4.1.

How common is BRD4 p.Pro255= (c.765C>G) in the general population?

BRD4 p.Pro255= (c.765C>G) is absent from gnomAD v4.1 (gnomAD).

BRD4 p.Pro255=

c.765C>G · rs756059245 · VCV2750724

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

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 -0.37	GERP -4.9, phastCons 0.005
Overall
CADD	0.747	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: BRD4
Protein: p.Pro255=
Coding: c.765C>G
MANE Select: NM_001379291
dbSNP: rs756059245
Type: single nucleotide variant
Location: chr19:15265438 (GRCh38)
Gene constraint: LOEUF 0.191 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 56.20 · 613 PDB
Residue 255: the 'disordered' region; a UniProt-annotated variant site (found in a patient with a neurodevelopmental syndrome; likely pathogenic)

Full BRD4 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

BRD4 p.Pro255Ser Uncertain significance ★ ⚠ same residue
BRD4 p.Tyr430Cys Likely pathogenic ★★ same type
BRD4 p.Ala220Thr Uncertain significance ★★ ⚠ same type
BRD4 p.Ala409Thr Uncertain significance ★★ ⚠ same type
BRD4 p.Ala565Val Uncertain significance ★★ ⚠ same type
BRD4 p.Asp337Asn Uncertain significance ★★ ⚠ same type
BRD4 p.Asp497Gly Uncertain significance ★★ ⚠ same type
BRD4 p.Gln32Arg 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/brd4-p-pro255 (accessed [today's date]).

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