rs2304670

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_ModerateBP6_ModerateBP7BA1

The NM_022817.3(PER2):​c.1992G>A​(p.Ala664=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.092 in 1,613,452 control chromosomes in the GnomAD database, including 7,586 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.098 ( 776 hom., cov: 33)
Exomes 𝑓: 0.091 ( 6810 hom. )

Consequence

PER2
NM_022817.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.216
Variant links:
Genes affected
PER2 (HGNC:8846): (period circadian regulator 2) This gene is a member of the Period family of genes and is expressed in a circadian pattern in the suprachiasmatic nucleus, the primary circadian pacemaker in the mammalian brain. Genes in this family encode components of the circadian rhythms of locomotor activity, metabolism, and behavior. This gene is upregulated by CLOCK/ARNTL heterodimers but then represses this upregulation in a feedback loop using PER/CRY heterodimers to interact with CLOCK/ARNTL. Polymorphisms in this gene may increase the risk of getting certain cancers and have been linked to sleep disorders. [provided by RefSeq, Jan 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.33).
BP6
Variant 2-238256995-C-T is Benign according to our data. Variant chr2-238256995-C-T is described in ClinVar as [Benign]. Clinvar id is 3055371.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-0.216 with no splicing effect.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.119 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PER2NM_022817.3 linkuse as main transcriptc.1992G>A p.Ala664= synonymous_variant 17/23 ENST00000254657.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PER2ENST00000254657.8 linkuse as main transcriptc.1992G>A p.Ala664= synonymous_variant 17/231 NM_022817.3 P1O15055-1
PER2ENST00000707129.1 linkuse as main transcriptc.1992G>A p.Ala664= synonymous_variant 17/23 P1
PER2ENST00000707130.1 linkuse as main transcriptc.1992G>A p.Ala664= synonymous_variant 17/23 P1

Frequencies

GnomAD3 genomes
AF:
0.0977
AC:
14860
AN:
152152
Hom.:
776
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.104
Gnomad AMI
AF:
0.0855
Gnomad AMR
AF:
0.0590
Gnomad ASJ
AF:
0.130
Gnomad EAS
AF:
0.0580
Gnomad SAS
AF:
0.127
Gnomad FIN
AF:
0.171
Gnomad MID
AF:
0.114
Gnomad NFE
AF:
0.0906
Gnomad OTH
AF:
0.0923
GnomAD3 exomes
AF:
0.0974
AC:
24462
AN:
251084
Hom.:
1437
AF XY:
0.102
AC XY:
13805
AN XY:
135746
show subpopulations
Gnomad AFR exome
AF:
0.107
Gnomad AMR exome
AF:
0.0356
Gnomad ASJ exome
AF:
0.129
Gnomad EAS exome
AF:
0.0535
Gnomad SAS exome
AF:
0.141
Gnomad FIN exome
AF:
0.168
Gnomad NFE exome
AF:
0.0944
Gnomad OTH exome
AF:
0.0958
GnomAD4 exome
AF:
0.0914
AC:
133524
AN:
1461182
Hom.:
6810
Cov.:
32
AF XY:
0.0940
AC XY:
68339
AN XY:
726928
show subpopulations
Gnomad4 AFR exome
AF:
0.106
Gnomad4 AMR exome
AF:
0.0382
Gnomad4 ASJ exome
AF:
0.125
Gnomad4 EAS exome
AF:
0.0585
Gnomad4 SAS exome
AF:
0.140
Gnomad4 FIN exome
AF:
0.163
Gnomad4 NFE exome
AF:
0.0857
Gnomad4 OTH exome
AF:
0.0969
GnomAD4 genome
AF:
0.0976
AC:
14868
AN:
152270
Hom.:
776
Cov.:
33
AF XY:
0.102
AC XY:
7600
AN XY:
74440
show subpopulations
Gnomad4 AFR
AF:
0.104
Gnomad4 AMR
AF:
0.0589
Gnomad4 ASJ
AF:
0.130
Gnomad4 EAS
AF:
0.0579
Gnomad4 SAS
AF:
0.128
Gnomad4 FIN
AF:
0.171
Gnomad4 NFE
AF:
0.0906
Gnomad4 OTH
AF:
0.0909
Alfa
AF:
0.0904
Hom.:
932
Bravo
AF:
0.0889
Asia WGS
AF:
0.0760
AC:
264
AN:
3478
EpiCase
AF:
0.0893
EpiControl
AF:
0.0886

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

PER2-related disorder Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesNov 11, 2019This variant is classified as 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
BayesDel_noAF
Benign
-0.33
CADD
Benign
11
DANN
Benign
0.91

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.

Other links and lift over

dbSNP: rs2304670; hg19: chr2-239165636; COSMIC: COSV54521519; COSMIC: COSV54521519; API