Genetic Variant NM_001384272.1:c.602C>G (chr6-55255335-C-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

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

The NM_001384272.1(HCRTR2):c.602C>G(p.Ala201Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000682 in 1,613,866 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

HCRTR2
NM_001384272.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.75

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 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2949588).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
HCRTR2	NM_001384272.1 link	c.602C>G	p.Ala201Gly	missense_variant	Exon 3 of 7	ENST00000370862.4	NP_001371201.1
HCRTR2	NM_001526.5 link	c.602C>G	p.Ala201Gly	missense_variant	Exon 4 of 8		NP_001517.2
HCRTR2	XM_017010798.2 link	c.602C>G	p.Ala201Gly	missense_variant	Exon 4 of 9		XP_016866287.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HCRTR2	ENST00000370862.4 link	c.602C>G	p.Ala201Gly	missense_variant	Exon 3 of 7	1	NM_001384272.1	ENSP00000359899.3		O43614
HCRTR2	ENST00000615358.4 link	c.602C>G	p.Ala201Gly	missense_variant	Exon 4 of 8	1		ENSP00000477548.1		O43614

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152088

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251126

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135712

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461778

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727196

show subpopulations

Gnomad4 AFR exome

AF:

0.000179

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:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152088

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74294

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000718

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 06, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.602C>G (p.A201G) alteration is located in exon 3 (coding exon 3) of the HCRTR2 gene. This alteration results from a C to G substitution at nucleotide position 602, causing the alanine (A) at amino acid position 201 to be replaced by a glycine (G). 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

0.14

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.52

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.051

T;T

Eigen

Benign

-0.022

Eigen_PC

Benign

0.056

FATHMM_MKL

Uncertain

0.97

LIST_S2

Benign

0.84

T;.

M_CAP

Benign

0.018

MetaRNN

Benign

0.29

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.99

L;L

PrimateAI

Benign

0.46

PROVEAN

Benign

-1.1

.;N

REVEL

Benign

0.068

Sift

Benign

0.22

.;T

Sift4G

Benign

0.46

T;T

Polyphen

0.39

B;B

Vest4

0.46

MutPred

0.57

Loss of catalytic residue at A201 (P = 0.0551);Loss of catalytic residue at A201 (P = 0.0551);

MVP

0.69

MPC

0.63

ClinPred

0.68

GERP RS

4.5

Varity_R

0.12

gMVP

0.40

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