2-238246445-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_022817.3(PER2):c.3698G>A(p.Ser1233Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000957 in 1,609,408 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. S1233S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

PER2
NM_022817.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.928

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]

PER2 links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.014330268).

BS2

High AC in GnomAd at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PER2	NM_022817.3 linkuse as main transcript	c.3698G>A	p.Ser1233Asn	missense_variant	23/23	ENST00000254657.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PER2	ENST00000254657.8 linkuse as main transcript	c.3698G>A	p.Ser1233Asn	missense_variant	23/23	1	NM_022817.3	P1	O15055-1
	ENST00000456601.1 linkuse as main transcript	n.1198C>T		non_coding_transcript_exon_variant	4/7	2
PER2	ENST00000707129.1 linkuse as main transcript	c.3698G>A	p.Ser1233Asn	missense_variant	23/23			P1
PER2	ENST00000707130.1 linkuse as main transcript	c.3698G>A	p.Ser1233Asn	missense_variant	23/23			P1

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00144

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000196

AC:

AN:

250638

Hom.:

AF XY:

0.000192

AC XY:

AN XY:

135584

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000377

Gnomad ASJ exome

AF:

0.00169

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000441

Gnomad OTH exome

AF:

0.000653

GnomAD4 exome

AF:

0.0000995

AC:

145

AN:

1457270

Hom.:

Cov.:

AF XY:

0.000106

AC XY:

AN XY:

725210

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000448

Gnomad4 ASJ exome

AF:

0.00123

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000383

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000451

Gnomad4 OTH exome

AF:

0.000133

GnomAD4 genome

AF:

0.0000592

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74312

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00144

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000203

Hom.:

Bravo

AF:

0.000102

ExAC

AF:

0.000115

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

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

Oct 22, 2021

The c.3698G>A (p.S1233N) alteration is located in exon 23 (coding exon 22) of the PER2 gene. This alteration results from a G to A substitution at nucleotide position 3698, causing the serine (S) at amino acid position 1233 to be replaced by an asparagine (N). 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

0.079

BayesDel_addAF

Benign

-0.57

BayesDel_noAF

Benign

-0.74

Cadd

Benign

Dann

Benign

0.84

DEOGEN2

Benign

0.040

Eigen

Benign

-0.62

Eigen_PC

Benign

-0.66

FATHMM_MKL

Benign

0.054

LIST_S2

Benign

0.54

M_CAP

Benign

0.0094

MetaRNN

Benign

0.014

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.28

PROVEAN

Benign

-0.10

REVEL

Benign

0.10

Sift

Benign

0.76

Sift4G

Benign

1.0

Polyphen

0.46

Vest4

0.064

MutPred

0.16

Loss of phosphorylation at S1233 (P = 0.0302);

MVP

0.44

MPC

0.62

ClinPred

0.035

GERP RS

3.1

Varity_R

0.033

gMVP

0.13

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.

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