Is BDNF p.Tyr34= (c.102C>T) pathogenic?

BDNF p.Tyr34= (c.102C>T) is classified Likely benign in BDNF (ClinVar, No assertion criteria, 1 submitter; last evaluated 2020-12-15). Absent from gnomAD v4.1; Associated with BDNF-related disorder.

What condition is associated with BDNF p.Tyr34= (c.102C>T)?

BDNF p.Tyr34= (c.102C>T) is associated with BDNF-related disorder (ClinVar).

How common is BDNF p.Tyr34= (c.102C>T) in the general population?

BDNF p.Tyr34= (c.102C>T) is absent from gnomAD v4.1 (gnomAD).

BDNF p.Tyr34=

c.102C>T · rs2538964863 · VCV3030850

Likely benign No assertion criteria

Classification

Likely benign

ClinVar

Review

No assertion criteria ☆☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

BDNF-related disorder

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 5.9	GERP 1.1, phastCons 1
Overall
CADD	25.3	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: BDNF
Protein: p.Tyr34=
Coding: c.102C>T
MANE Select: NM_001709
dbSNP: rs2538964863
Type: single nucleotide variant
Location: chr11:27658463 (GRCh38)
Gene constraint: LOEUF 0.233 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 71.44 · 2 PDB

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

Disease context

BDNF-related disorder

Similar variants

BDNF p.Tyr34Cys Uncertain significance ★ ⚠ same residue
BDNF c.-21-15487T>G Uncertain significance ★ same condition
BDNF c.-21-15496C>G Uncertain significance ★ same condition
BDNF p.Arg38Gln Uncertain significance ★ ⚠ same condition
BDNF p.Gly31Asp Uncertain significance ★ ⚠ same condition
BDNF p.Lys76Glu Uncertain significance ★ ⚠ same condition
BDNF p.Met220Thr Uncertain significance ★ ⚠ same condition
BDNF c.-21-15481C>A Uncertain significance 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/bdnf-p-tyr34 (accessed [today's date]).

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