3-184031766-A-G

Position:

• chr3-184031766-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Moderate BP6_Moderate

The NM_001145143.1(HTR3D):​c.25A>G​(p.Lys9Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/15 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Genomes: not found (cov: 30)
• Consequence: HTR3D NM_001145143.1 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.492

Genes affected

HTR3D (HGNC:24004): (5-hydroxytryptamine receptor 3D) The protein encoded this gene belongs to the ligand-gated ion channel receptor superfamily. This gene encodes subunit D of the type 3 receptor for 5-hydroxytryptamine (serotonin), a biogenic hormone that functions as a neurotransmitter, a mitogen and a hormone. This hormone has been linked to neuropsychiatric disorders, including anxiety, depression, and migraine. Serotonin receptors causes fast and depolarizing responses in neurons following activation. The genes encoding subunits C, D and E of this type 3 receptor form a cluster on chromosome 3. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2009]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.13067254).
• BP6: Variant 3-184031766-A-G is Benign according to our data. Variant chr3-184031766-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 2540131.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HTR3D	NM_001145143.1	c.25A>G	p.Lys9Glu	missense_variant	1/8	ENST00000428798.7
HTR3D	NM_001410851.1	c.-164+195A>G		intron_variant
HTR3D	NM_182537.3	c.-198+195A>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HTR3D	ENST00000428798.7	c.25A>G	p.Lys9Glu	missense_variant	1/8	5	NM_001145143.1
HTR3D	ENST00000334128.6	c.-198+195A>G		intron_variant		1

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 30

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 25, 2023

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.58
CADD	Benign	0.52
DANN	Benign	0.70
Eigen	Benign	-0.87
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.00060	N
LIST_S2	Benign	0.21	T
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.13	T
MetaSVM	Benign	-0.70	T
MutationTaster	Benign	1.0	N;N
PROVEAN	Benign	-0.73	N
REVEL	Benign	0.051
Sift	Uncertain	0.0030	D
Sift4G	Benign	0.84	T
Vest4		0.16
MutPred		0.43		Loss of ubiquitination at K9 (P = 0.027);
MVP		0.40
ClinPred		0.047	T
GERP RS		-3.0

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-183749554;