Variant chr5-148523291-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_000870.7(HTR4):c.409C>A(p.Arg137Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,460,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

HTR4
NM_000870.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.24

Variant links:

Genes affected

HTR4 (HGNC:5299): (5-hydroxytryptamine receptor 4) This gene is a member of the family of serotonin receptors, which are G protein coupled receptors that stimulate cAMP production in response to serotonin (5-hydroxytryptamine). The gene product is a glycosylated transmembrane protein that functions in both the peripheral and central nervous system to modulate the release of various neurotransmitters. Multiple transcript variants encoding proteins with distinct C-terminal sequences have been described. [provided by RefSeq, May 2010]

HTR4 links:

LOC107986462 (HGNC:):

LOC107986462 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.924

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HTR4	NM_000870.7 linkuse as main transcript	c.409C>A	p.Arg137Ser	missense_variant	5/7	ENST00000377888.8
LOC107986462	XR_001742935.2 linkuse as main transcript	n.442-26794G>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HTR4	ENST00000377888.8 linkuse as main transcript	c.409C>A	p.Arg137Ser	missense_variant	5/7	1	NM_000870.7		Q13639-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460890

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726746

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000505

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

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

Sep 29, 2023

The c.409C>A (p.R137S) alteration is located in exon 4 (coding exon 4) of the HTR4 gene. This alteration results from a C to A substitution at nucleotide position 409, causing the arginine (R) at amino acid position 137 to be replaced by a serine (S). 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

Pathogenic

0.84

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Uncertain

0.080

CADD

Pathogenic

DANN

Uncertain

1.0

Eigen

Pathogenic

0.82

Eigen_PC

Pathogenic

0.78

FATHMM_MKL

Uncertain

0.81

LIST_S2

Uncertain

0.91

D;D;D;D;.;.;D;D

M_CAP

Benign

0.013

MetaRNN

Pathogenic

0.92

D;D;D;D;D;D;D;D

MetaSVM

Benign

-0.46

MutationAssessor

Uncertain

2.5

M;M;M;M;M;M;M;M

MutationTaster

Benign

1.0

D;D;D;D;D;D;D;D;D

PrimateAI

Uncertain

0.64

PROVEAN

Uncertain

-3.0

D;D;D;D;D;D;D;.

REVEL

Uncertain

0.43

Sift

Benign

0.041

D;D;D;T;D;T;D;.

Sift4G

Benign

0.14

T;T;T;T;T;T;T;T

Polyphen

1.0

D;.;D;.;D;.;.;D

Vest4

0.87

MutPred

0.78

Gain of ubiquitination at K132 (P = 0.1181);Gain of ubiquitination at K132 (P = 0.1181);Gain of ubiquitination at K132 (P = 0.1181);Gain of ubiquitination at K132 (P = 0.1181);Gain of ubiquitination at K132 (P = 0.1181);Gain of ubiquitination at K132 (P = 0.1181);Gain of ubiquitination at K132 (P = 0.1181);Gain of ubiquitination at K132 (P = 0.1181);

MVP

0.75

MPC

0.36

ClinPred

0.99

GERP RS

5.6

Varity_R

0.50

gMVP

0.94

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

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