5-148509891-C-T

Variant summary

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

The NM_000870.7(HTR4):c.641G>A(p.Arg214His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000682 in 1,613,806 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: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000069 ( 0 hom. )

Consequence

HTR4
NM_000870.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.89

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, 0.88

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HTR4	NM_000870.7 linkuse as main transcript	c.641G>A	p.Arg214His	missense_variant	6/7	ENST00000377888.8
LOC107986462	XR_001742935.2 linkuse as main transcript	n.442-40194C>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.641G>A	p.Arg214His	missense_variant	6/7	1	NM_000870.7		Q13639-1

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

151924

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:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000478

AC:

AN:

250788

Hom.:

AF XY:

0.0000664

AC XY:

AN XY:

135508

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000618

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.0000691

AC:

101

AN:

1461764

Hom.:

Cov.:

AF XY:

0.0000853

AC XY:

AN XY:

727180

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

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:

0.0000845

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000592

AC:

AN:

152042

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74322

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000567

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

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

Mar 31, 2023

The c.641G>A (p.R214H) alteration is located in exon 5 (coding exon 5) of the HTR4 gene. This alteration results from a G to A substitution at nucleotide position 641, causing the arginine (R) at amino acid position 214 to be replaced by a histidine (H). 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

0.18

BayesDel_addAF

Uncertain

0.081

BayesDel_noAF

Uncertain

0.080

Cadd

Pathogenic

Dann

Uncertain

1.0

Eigen

Pathogenic

0.72

Eigen_PC

Pathogenic

0.68

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.96

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

M_CAP

Benign

0.025

MetaRNN

Pathogenic

0.88

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

MetaSVM

Benign

-0.68

MutationAssessor

Benign

1.8

L;L;L;L;L;L;L;L

MutationTaster

Benign

1.0

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

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-3.8

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

REVEL

Uncertain

0.44

Sift

Uncertain

0.015

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

Sift4G

Benign

0.13

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

Polyphen

1.0

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

Vest4

0.89

MutPred

0.82

Loss of MoRF binding (P = 0.0731);Loss of MoRF binding (P = 0.0731);Loss of MoRF binding (P = 0.0731);Loss of MoRF binding (P = 0.0731);Loss of MoRF binding (P = 0.0731);Loss of MoRF binding (P = 0.0731);Loss of MoRF binding (P = 0.0731);Loss of MoRF binding (P = 0.0731);

MVP

0.68

MPC

0.91

ClinPred

0.75

GERP RS

6.0

Varity_R

0.37

gMVP

0.78

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