rs12273539

Variant names:

• chr11-27661764-C-T
• rs12273539
• NM_001709.5:c.-21-3179G>A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001709.5(BDNF):​c.-21-3179G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.114 in 152,156 control chromosomes in the GnomAD database, including 2,483 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.11 (2483 hom., cov: 32)
• Consequence: BDNF NM_001709.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.991

Genes affected

BDNF (HGNC:1033): (brain derived neurotrophic factor) This gene encodes a member of the nerve growth factor family of proteins. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate the mature protein. Binding of this protein to its cognate receptor promotes neuronal survival in the adult brain. Expression of this gene is reduced in Alzheimer's, Parkinson's, and Huntington's disease patients. This gene may play a role in the regulation of the stress response and in the biology of mood disorders. [provided by RefSeq, Nov 2015]

BDNF-AS (HGNC:20608): (BDNF antisense RNA)

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.3 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BDNF	NM_001709.5	c.-21-3179G>A		intron_variant	Intron 1 of 1	ENST00000356660.9	NP_001700.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BDNF	ENST00000356660.9	c.-21-3179G>A		intron_variant	Intron 1 of 1	1	NM_001709.5	ENSP00000349084.4
BDNF	ENST00000533131.5	c.-21-3179G>A		intron_variant	Intron 1 of 1	1		ENSP00000432727.1

Frequencies

GnomAD3 genomes AF: 0.114 AC: 17272 AN: 152038 Hom.: 2475 Cov.: 32

Gnomad AFR AF: 0.304

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.221

Gnomad ASJ AF: 0.00202

Gnomad EAS AF: 0.164

Gnomad SAS AF: 0.0151

Gnomad FIN AF: 0.0000942

Gnomad MID AF: 0.0158

Gnomad NFE AF: 0.00270

Gnomad OTH AF: 0.0925

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.114 AC: 17302 AN: 152156 Hom.: 2483 Cov.: 32 AF XY: 0.115 AC XY: 8565 AN XY: 74426

Gnomad4 AFR AF: 0.304

Gnomad4 AMR AF: 0.222

Gnomad4 ASJ AF: 0.00202

Gnomad4 EAS AF: 0.164

Gnomad4 SAS AF: 0.0149

Gnomad4 FIN AF: 0.0000942

Gnomad4 NFE AF: 0.00271

Gnomad4 OTH AF: 0.0916

Alfa AF: 0.0834 Hom.: 466

Bravo AF: 0.141

Asia WGS AF: 0.0820 AC: 285 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	8.0
DANN	Benign	0.65

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs12273539; hg19: chr11-27683311;