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GeneBe

2-238246532-G-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_022817.3(PER2):c.3619-8C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000318 in 1,352,750 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000032 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

PER2
NM_022817.3 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00004755
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.697
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.73).
BP6
Variant 2-238246532-G-A is Benign according to our data. Variant chr2-238246532-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 1090358.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome at 24 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PER2NM_022817.3 linkuse as main transcriptc.3619-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000254657.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PER2ENST00000254657.8 linkuse as main transcriptc.3619-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_022817.3 P1O15055-1
ENST00000456601.1 linkuse as main transcriptn.1231+54G>A intron_variant, non_coding_transcript_variant 2
PER2ENST00000707129.1 linkuse as main transcriptc.3619-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant P1
PER2ENST00000707130.1 linkuse as main transcriptc.3619-8C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant P1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
1
AN:
150380
Hom.:
0
Cov.:
33
FAILED QC
Gnomad AFR
AF:
0.0000244
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000113
AC:
24
AN:
212984
Hom.:
0
AF XY:
0.000103
AC XY:
12
AN XY:
116222
show subpopulations
Gnomad AFR exome
AF:
0.000143
Gnomad AMR exome
AF:
0.000142
Gnomad ASJ exome
AF:
0.000114
Gnomad EAS exome
AF:
0.000454
Gnomad SAS exome
AF:
0.0000376
Gnomad FIN exome
AF:
0.000110
Gnomad NFE exome
AF:
0.0000621
Gnomad OTH exome
AF:
0.000193
GnomAD4 exome
AF:
0.0000318
AC:
43
AN:
1352750
Hom.:
0
Cov.:
24
AF XY:
0.0000280
AC XY:
19
AN XY:
677972
show subpopulations
Gnomad4 AFR exome
AF:
0.000131
Gnomad4 AMR exome
AF:
0.000468
Gnomad4 ASJ exome
AF:
0.000121
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000137
Gnomad4 OTH exome
AF:
0.0000533
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000665
AC:
1
AN:
150380
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
73336
show subpopulations
Gnomad4 AFR
AF:
0.0000244
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:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000425
Hom.:
0

ClinVar

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

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeSep 28, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.73
Cadd
Benign
9.4
Dann
Benign
0.82

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000048
dbscSNV1_RF
Benign
0.0
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: rs1218184730; hg19: chr2-239155173; API