Genetic Variant HTR3E:p.Val62Leu (chr3-184100601-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001256613.2(HTR3E):c.184G>C(p.Val62Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000576 in 1,613,882 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000059 ( 0 hom. )

Consequence

HTR3E
NM_001256613.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.528

Variant links:

Genes affected

HTR3E (HGNC:24005): (5-hydroxytryptamine receptor 3E) This locus encodes a 5-hydroxytryptamine (serotonin) receptor subunit. The encoded protein, subunit E, may play a role in neurotransmission in myenteric neurons. Genes encoding subunits C, D and E form a cluster on chromosome 3. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Feb 2012]

HTR3E links:

HTR3E-AS1 (HGNC:41032): (HTR3E antisense RNA 1)

HTR3E-AS1 links:

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ACMG classification

Classification made for transcript

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=0.062230945).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HTR3E	NM_001256613.2 link	c.184G>C	p.Val62Leu	missense_variant	Exon 2 of 9	ENST00000415389.6	NP_001243542.1	A5X5Y0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HTR3E	ENST00000415389.6 link	c.184G>C	p.Val62Leu	missense_variant	Exon 2 of 9	1	NM_001256613.2	ENSP00000401444.2		A5X5Y0-1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152070

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000398

AC:

AN:

251468

Hom.:

AF XY:

0.0000662

AC XY:

AN XY:

135910

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000588

AC:

AN:

1461812

Hom.:

Cov.:

AF XY:

0.0000660

AC XY:

AN XY:

727214

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000701

Gnomad4 OTH exome

AF:

0.000132

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152070

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74270

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000901

Hom.:

Bravo

AF:

0.0000529

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 27, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.229G>C (p.V77L) alteration is located in exon 1 (coding exon 1) of the HTR3E gene. This alteration results from a G to C substitution at nucleotide position 229, causing the valine (V) at amino acid position 77 to be replaced by a leucine (L). 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

-0.32

BayesDel_noAF

Benign

-0.51

CADD

Benign

0.23

DANN

Benign

0.76

DEOGEN2

Benign

0.043

T;.;.;.;.

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.043

LIST_S2

Benign

0.11

T;T;T;T;T

M_CAP

Benign

0.016

MetaRNN

Benign

0.062

T;T;T;T;T

MetaSVM

Benign

-0.91

MutationAssessor

Benign

1.8

L;L;.;.;.

PrimateAI

Benign

0.27

PROVEAN

Benign

-1.2

N;N;N;N;N

REVEL

Benign

0.13

Sift

Benign

0.34

T;T;T;T;T

Sift4G

Benign

0.36

T;T;T;T;T

Polyphen

0.015

B;B;B;B;.

Vest4

0.089

MutPred

0.38

Loss of glycosylation at T64 (P = 0.1167);Loss of glycosylation at T64 (P = 0.1167);.;.;.;

MVP

0.27

MPC

0.058

ClinPred

0.052

GERP RS

-3.5

Varity_R

0.037

gMVP

0.039

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over