rs731779

Positions:

• chr13-46877903-A-C

Variant summary

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

The NM_000621.5(HTR2A):​c.613+14487T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.157 in 151,988 control chromosomes in the GnomAD database, including 1,994 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 0.16 (1994 hom., cov: 31)
• Consequence: HTR2A NM_000621.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.00500

Genes affected

HTR2A (HGNC:5293): (5-hydroxytryptamine receptor 2A) This gene encodes one of the receptors for serotonin, a neurotransmitter with many roles. Mutations in this gene are associated with susceptibility to schizophrenia and obsessive-compulsive disorder, and are also associated with response to the antidepressant citalopram in patients with major depressive disorder (MDD). MDD patients who also have a mutation in intron 2 of this gene show a significantly reduced response to citalopram as this antidepressant downregulates expression of this gene. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.185 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HTR2A	NM_000621.5	c.613+14487T>G		intron_variant		ENST00000542664.4
HTR2A	NM_001165947.5	c.124+14487T>G		intron_variant
HTR2A	NM_001378924.1	c.613+14487T>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HTR2A	ENST00000542664.4	c.613+14487T>G		intron_variant		1	NM_000621.5	P1
HTR2A	ENST00000543956.5	c.124+14487T>G		intron_variant		1

Frequencies

GnomAD3 genomes AF: 0.157 AC: 23843 AN: 151870 Hom.: 1988 Cov.: 31

Gnomad AFR AF: 0.119

Gnomad AMI AF: 0.0910

Gnomad AMR AF: 0.122

Gnomad ASJ AF: 0.100

Gnomad EAS AF: 0.185

Gnomad SAS AF: 0.184

Gnomad FIN AF: 0.157

Gnomad MID AF: 0.104

Gnomad NFE AF: 0.188

Gnomad OTH AF: 0.143

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

GnomAD4 genome AF: 0.157 AC: 23876 AN: 151988 Hom.: 1994 Cov.: 31 AF XY: 0.156 AC XY: 11551 AN XY: 74282

Gnomad4 AFR AF: 0.120

Gnomad4 AMR AF: 0.122

Gnomad4 ASJ AF: 0.100

Gnomad4 EAS AF: 0.186

Gnomad4 SAS AF: 0.184

Gnomad4 FIN AF: 0.157

Gnomad4 NFE AF: 0.188

Gnomad4 OTH AF: 0.145

Alfa AF: 0.177 Hom.: 3225

Bravo AF: 0.153

Asia WGS AF: 0.212 AC: 736 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	1.2
DANN	Benign	0.83

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

LitVar

Other links and lift over

dbSNP: rs731779; hg19: chr13-47452038;