Variant 6-55263803-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001384272.1(HCRTR2):c.743G>T(p.Arg248Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000517 in 1,605,468 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000054 ( 0 hom. )

Consequence

HCRTR2
NM_001384272.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.06

Variant links:

Genes affected

HCRTR2 (HGNC:4849): (hypocretin receptor 2) The protein encoded by this gene is a G-protein coupled receptor involved in the regulation of feeding behavior. The encoded protein binds the hypothalamic neuropeptides orexin A and orexin B. A related gene (HCRTR1) encodes a G-protein coupled receptor that selectively binds orexin A. [provided by RefSeq, Jan 2009]

HCRTR2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
HCRTR2	NM_001384272.1 linkuse as main transcript	c.743G>T	p.Arg248Leu	missense_variant	4/7	ENST00000370862.4
HCRTR2	NM_001526.5 linkuse as main transcript	c.743G>T	p.Arg248Leu	missense_variant	5/8
HCRTR2	XM_017010798.2 linkuse as main transcript	c.743G>T	p.Arg248Leu	missense_variant	5/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HCRTR2	ENST00000370862.4 linkuse as main transcript	c.743G>T	p.Arg248Leu	missense_variant	4/7	1	NM_001384272.1	P1
HCRTR2	ENST00000615358.4 linkuse as main transcript	c.743G>T	p.Arg248Leu	missense_variant	5/8	1		P1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

151968

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000589

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000280

AC:

AN:

249576

Hom.:

AF XY:

0.0000371

AC XY:

AN XY:

134900

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000291

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:

0.0000444

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000544

AC:

AN:

1453500

Hom.:

Cov.:

AF XY:

0.0000580

AC XY:

AN XY:

723720

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.0000706

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

151968

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74218

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000589

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

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 16, 2021

The c.743G>T (p.R248L) alteration is located in exon 4 (coding exon 4) of the HCRTR2 gene. This alteration results from a G to T substitution at nucleotide position 743, causing the arginine (R) at amino acid position 248 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

0.26

BayesDel_addAF

Benign

-0.049

BayesDel_noAF

Benign

-0.18

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.097

T;T

Eigen

Uncertain

0.30

Eigen_PC

Uncertain

0.40

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.96

D;.

M_CAP

Benign

0.016

MetaRNN

Uncertain

0.62

D;D

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.3

L;L

MutationTaster

Benign

1.0

PrimateAI

Benign

0.47

Sift4G

Benign

0.38

T;T

Polyphen

0.74

P;P

Vest4

0.67

MutPred

0.65

Loss of MoRF binding (P = 0.0346);Loss of MoRF binding (P = 0.0346);

MVP

0.72

MPC

0.82

ClinPred

0.34

GERP RS

5.8

Varity_R

0.27

gMVP

0.62

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