Genetic Variant BDNF:p.Val170Phe (chr11-27658057-C-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001709.5(BDNF):c.508G>T(p.Val170Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V170I) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

BDNF
NM_001709.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.17

Publications

6 publications found

Variant links:

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 links:

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

BDNF-AS links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.883

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001709.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
BDNF	NM_001709.5	MANE Select	c.508G>T	p.Val170Phe	missense	Exon 2 of 2	NP_001700.2
BDNF	NM_001143810.2		c.754G>T	p.Val252Phe	missense	Exon 3 of 3	NP_001137282.1	P23560-4
BDNF	NM_001143809.2		c.595G>T	p.Val199Phe	missense	Exon 2 of 2	NP_001137281.1	P23560-5

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
BDNF	ENST00000356660.9	TSL:1 MANE Select	c.508G>T	p.Val170Phe	missense	Exon 2 of 2	ENSP00000349084.4	P23560-1
BDNF	ENST00000438929.5	TSL:1	c.754G>T	p.Val252Phe	missense	Exon 3 of 3	ENSP00000414303.1	P23560-4
BDNF	ENST00000395986.6	TSL:1	c.553G>T	p.Val185Phe	missense	Exon 2 of 2	ENSP00000379309.2	P23560-3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251480

AF XY:

0.00000736

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461894

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727248

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112012

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000165

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.63

BayesDel_addAF

Pathogenic

0.25

BayesDel_noAF

Pathogenic

0.22

CADD

Pathogenic

(source)

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.53

Eigen

Pathogenic

0.69

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.96

M_CAP

Uncertain

0.094

MetaRNN

Pathogenic

0.88

MetaSVM

Uncertain

-0.079

MutationAssessor

Benign

1.8

PhyloP100

6.2

PrimateAI

Uncertain

0.72

PROVEAN

Uncertain

-3.8

REVEL

Uncertain

0.58

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.048

Polyphen

0.99

Vest4

0.74

MutPred

0.79

Gain of catalytic residue at V170 (P = 0.0777)

MVP

0.82

MPC

1.9

ClinPred

0.93

GERP RS

6.1

Varity_R

0.91

gMVP

0.96

Mutation Taster

=14/86

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over