Variant chr3-184058483-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_130770.3(HTR3C):c.616C>T(p.Arg206Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000684 in 1,461,230 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

HTR3C
NM_130770.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.193

Variant links:

Genes affected

HTR3C (HGNC:24003): (5-hydroxytryptamine receptor 3C) The product of this gene belongs to the ligand-gated ion channel receptor superfamily. This gene encodes subunit C of the type 3 receptor for 5-hydroxytryptamine (serotonin), a biogenic hormone that functions as a neurotransmitter, a hormone, and a mitogen. This receptor causes fast, depolarizing responses in neurons after activation. Genes encoding subunits C, D and E form a cluster on chromosome 3. [provided by RefSeq, Jul 2008]

HTR3C links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.4152013).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HTR3C	NM_130770.3 linkuse as main transcript	c.616C>T	p.Arg206Cys	missense_variant	6/9	ENST00000318351.2	NP_570126.2	Q8WXA8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HTR3C	ENST00000318351.2 linkuse as main transcript	c.616C>T	p.Arg206Cys	missense_variant	6/9	1	NM_130770.3	ENSP00000322617.1		Q8WXA8

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461230

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

726922

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000720

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 19, 2023

The c.616C>T (p.R206C) alteration is located in exon 6 (coding exon 6) of the HTR3C gene. This alteration results from a C to T substitution at nucleotide position 616, causing the arginine (R) at amino acid position 206 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.049

BayesDel_noAF

Benign

-0.31

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.35

Eigen

Benign

-0.15

Eigen_PC

Benign

-0.41

FATHMM_MKL

Benign

0.044

LIST_S2

Benign

0.69

M_CAP

Benign

0.080

MetaRNN

Benign

0.42

MetaSVM

Benign

-0.43

MutationAssessor

Pathogenic

3.3

PrimateAI

Benign

0.18

PROVEAN

Pathogenic

-5.2

REVEL

Benign

0.22

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.26

MutPred

0.59

Gain of methylation at K207 (P = 0.031);

MVP

0.75

MPC

0.27

ClinPred

0.77

GERP RS

1.3

Varity_R

0.39

gMVP

0.062

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over