5-175683481-A-G

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2 PP2 BP4_Strong

The NM_001367711.1(HRH2):c.248A>G(p.Lys83Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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 (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: HRH2 NM_001367711.1 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: -1.46

Genes affected

HRH2 (HGNC:5183): (histamine receptor H2) Histamine is a ubiquitous messenger molecule released from mast cells, enterochromaffin-like cells, and neurons. Its various actions are mediated by histamine receptors H1, H2, H3 and H4. Histamine receptor H2 belongs to the family 1 of G protein-coupled receptors. It is an integral membrane protein and stimulates gastric acid secretion. It also regulates gastrointestinal motility and intestinal secretion and is thought to be involved in regulating cell growth and differentiation. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2008]

ACMG classification

Verdict is Likely_benign. Variant got -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, HRH2
• BP4: Computational evidence support a benign effect (MetaRNN=0.055622816).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HRH2	NM_001367711.1	c.248A>G	p.Lys83Arg	missense_variant	2/3	ENST00000636584.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HRH2	ENST00000636584.2	c.248A>G	p.Lys83Arg	missense_variant	2/3	3	NM_001367711.1	P1
HRH2	ENST00000377291.2	c.248A>G	p.Lys83Arg	missense_variant	2/3	1
HRH2	ENST00000624694.2	c.248A>G	p.Lys83Arg	missense_variant, NMD_transcript_variant	1/3	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

Myoepithelial tumor Uncertain:1

Uncertain significance, no assertion criteria provided

research

Caryl and Israel Englander Institute for Precision Medicine, Weill Cornell Medicine

Nov 01, 2022

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.060
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.65
Cadd	Benign	0.14
Dann	Benign	0.55
Eigen	Benign	-1.8
Eigen_PC	Benign	-1.9
FATHMM_MKL	Benign	0.048	N
LIST_S2	Benign	0.46	T;T;T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.056	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-0.24	N;.;N
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.23	T
PROVEAN	Benign	-0.89	N;.;N
REVEL	Benign	0.079
Sift	Benign	0.67	T;.;T
Sift4G	Benign	0.54	T;.;T
Polyphen		0.0	.;.;B
Vest4		0.036
MutPred		0.45		Loss of methylation at K83 (P = 0.0029);Loss of methylation at K83 (P = 0.0029);Loss of methylation at K83 (P = 0.0029);
MVP		0.53
MPC		0.69
ClinPred		0.029	T
GERP RS		-11
Varity_R		0.066
gMVP		0.30

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.

Other links and lift over

hg19: chr5-175110484;