6-55255310-T-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001384272.1(HCRTR2):​c.577T>A​(p.Cys193Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00173 in 1,614,004 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0014 ( 1 hom., cov: 32)
Exomes 𝑓: 0.0018 ( 5 hom. )

Consequence

HCRTR2
NM_001384272.1 missense

Scores

2
17

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 3.13
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.014897615).
BP6
Variant 6-55255310-T-A is Benign according to our data. Variant chr6-55255310-T-A is described in ClinVar as [Likely_benign]. Clinvar id is 3042350.Status of the report is no_assertion_criteria_provided, 0 stars.
BS2
High Homozygotes in GnomAdExome4 at 5 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HCRTR2NM_001384272.1 linkuse as main transcriptc.577T>A p.Cys193Ser missense_variant 3/7 ENST00000370862.4
HCRTR2NM_001526.5 linkuse as main transcriptc.577T>A p.Cys193Ser missense_variant 4/8
HCRTR2XM_017010798.2 linkuse as main transcriptc.577T>A p.Cys193Ser missense_variant 4/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HCRTR2ENST00000370862.4 linkuse as main transcriptc.577T>A p.Cys193Ser missense_variant 3/71 NM_001384272.1 P1
HCRTR2ENST00000615358.4 linkuse as main transcriptc.577T>A p.Cys193Ser missense_variant 4/81 P1

Frequencies

GnomAD3 genomes
AF:
0.00145
AC:
221
AN:
152080
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000290
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00368
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00124
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.0190
Gnomad NFE
AF:
0.00200
Gnomad OTH
AF:
0.00144
GnomAD3 exomes
AF:
0.00176
AC:
441
AN:
251244
Hom.:
0
AF XY:
0.00195
AC XY:
265
AN XY:
135800
show subpopulations
Gnomad AFR exome
AF:
0.000246
Gnomad AMR exome
AF:
0.00254
Gnomad ASJ exome
AF:
0.000695
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00150
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.00235
Gnomad OTH exome
AF:
0.00456
GnomAD4 exome
AF:
0.00176
AC:
2566
AN:
1461806
Hom.:
5
Cov.:
31
AF XY:
0.00181
AC XY:
1316
AN XY:
727216
show subpopulations
Gnomad4 AFR exome
AF:
0.000538
Gnomad4 AMR exome
AF:
0.00244
Gnomad4 ASJ exome
AF:
0.000459
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00136
Gnomad4 FIN exome
AF:
0.0000562
Gnomad4 NFE exome
AF:
0.00193
Gnomad4 OTH exome
AF:
0.00184
GnomAD4 genome
AF:
0.00145
AC:
220
AN:
152198
Hom.:
1
Cov.:
32
AF XY:
0.00149
AC XY:
111
AN XY:
74398
show subpopulations
Gnomad4 AFR
AF:
0.000289
Gnomad4 AMR
AF:
0.00367
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00124
Gnomad4 FIN
AF:
0.000188
Gnomad4 NFE
AF:
0.00200
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.00156
Hom.:
0
Bravo
AF:
0.00149
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00259
AC:
10
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00314
AC:
27
ExAC
AF:
0.00176
AC:
214
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00344
EpiControl
AF:
0.00338

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

HCRTR2-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesDec 21, 2022This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
18
DANN
Benign
0.70
DEOGEN2
Benign
0.067
T;T
Eigen
Benign
-0.61
Eigen_PC
Benign
-0.46
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.85
T;.
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.015
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.99
L;L
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-0.60
.;N
REVEL
Benign
0.10
Sift
Benign
0.14
.;T
Sift4G
Benign
0.46
T;T
Polyphen
0.0050
B;B
Vest4
0.43
MutPred
0.64
Loss of catalytic residue at M191 (P = 9e-04);Loss of catalytic residue at M191 (P = 9e-04);
MVP
0.63
MPC
0.52
ClinPred
0.012
T
GERP RS
2.7
Varity_R
0.16
gMVP
0.68

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.

Other links and lift over

dbSNP: rs41381449; hg19: chr6-55120108; API