Variant 18-24477491-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_021624.4(HRH4):c.1102G>A(p.Ala368Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000686 in 1,457,926 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

HRH4
NM_021624.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.85

Variant links:

Genes affected

HRH4 (HGNC:17383): (histamine receptor H4) Histamine is a ubiquitous messenger molecule released from mast cells, enterochromaffin-like cells, and neurons. Its various actions are mediated by a family of histamine receptors, which are a subset of the G-protein coupled receptor superfamily. This gene encodes a histamine receptor that is predominantly expressed in haematopoietic cells. The protein is thought to play a role in inflammation and allergy reponses. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2009]

HRH4 links:

Genome browser will be placed here

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=0.38302535).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
HRH4	NM_021624.4 linkuse as main transcript	c.1102G>A	p.Ala368Thr	missense_variant	3/3	ENST00000256906.5
HRH4	NM_001143828.2 linkuse as main transcript	c.838G>A	p.Ala280Thr	missense_variant	2/2
HRH4	NM_001160166.2 linkuse as main transcript	c.*734G>A		3_prime_UTR_variant	2/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HRH4	ENST00000256906.5 linkuse as main transcript	c.1102G>A	p.Ala368Thr	missense_variant	3/3	1	NM_021624.4	P1	Q9H3N8-1
HRH4	ENST00000426880.2 linkuse as main transcript	c.838G>A	p.Ala280Thr	missense_variant	2/2	1			Q9H3N8-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000161

AC:

AN:

248260

Hom.:

AF XY:

0.0000298

AC XY:

AN XY:

134410

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:

0.000132

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000686

AC:

AN:

1457926

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

725134

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:

0.000105

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000165

AC:

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

Aug 08, 2023

The c.1102G>A (p.A368T) alteration is located in exon 3 (coding exon 3) of the HRH4 gene. This alteration results from a G to A substitution at nucleotide position 1102, causing the alanine (A) at amino acid position 368 to be replaced by a threonine (T). 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

0.21

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.34

Cadd

Uncertain

Dann

Pathogenic

1.0

DEOGEN2

Benign

0.28

T;.

Eigen

Uncertain

0.55

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.79

T;T

M_CAP

Benign

0.024

MetaRNN

Benign

0.38

T;T

MetaSVM

Benign

-0.69

MutationAssessor

Pathogenic

3.0

M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.43

PROVEAN

Uncertain

-3.8

D;D

REVEL

Benign

0.23

Sift

Pathogenic

0.0

D;D

Sift4G

Uncertain

0.0040

D;D

Polyphen

1.0

D;.

Vest4

0.33

MutPred

0.71

Loss of ubiquitination at K363 (P = 0.0603);.;

MVP

0.65

MPC

0.34

ClinPred

0.96

GERP RS

4.2

Varity_R

0.69

gMVP

0.21

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