rs755738638

Variant names:

• chr1-7784980-A-C
• rs755738638
• NM_001377275.1:c.103A>C

Your query was ambiguous. Multiple possible variants found:

• chr1-7784980-A-C
• chr1-7784980-A-G

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001377275.1(PER3):​c.103A>C​(p.Arg35Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000141 in 1,415,000 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: PER3 NM_001377275.1 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.316
• Publications: 0 publications found

Genes affected

PER3 (HGNC:8847): (period circadian regulator 3) 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 have been linked to sleep disorders. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2014]

PER3 Gene-Disease associations (from GenCC):

• advanced sleep phase syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BP7: Synonymous conserved (PhyloP=-0.316 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001377275.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PER3	NM_001377275.1	MANE Select	c.103A>C	p.Arg35Arg	synonymous	Exon 2 of 22	NP_001364204.1	P56645-2
	PER3	NM_001289862.2		c.103A>C	p.Arg35Arg	synonymous	Exon 2 of 22	NP_001276791.1	P56645-2
	PER3	NM_001438696.1		c.103A>C	p.Arg35Arg	synonymous	Exon 2 of 22	NP_001425625.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PER3	ENST00000377532.8	TSL:1 MANE Select	c.103A>C	p.Arg35Arg	synonymous	Exon 2 of 22	ENSP00000366755.3	P56645-2
	PER3	ENST00000361923.2	TSL:1	c.103A>C	p.Arg35Arg	synonymous	Exon 1 of 21	ENSP00000355031.2	P56645-1
	PER3	ENST00000614998.4	TSL:1	c.103A>C	p.Arg35Arg	synonymous	Exon 2 of 23	ENSP00000479223.1	A0A087WV69

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000494 AC: 1 AN: 202372 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000106

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000141 AC: 2 AN: 1415000 Hom.: 0 Cov.: 31 AF XY: 0.00000142 AC XY: 1 AN XY: 704016

African (AFR) AF: 0.00 AC: 0 AN: 29284

American (AMR) AF: 0.00 AC: 0 AN: 33560

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24498

East Asian (EAS) AF: 0.00 AC: 0 AN: 35696

South Asian (SAS) AF: 0.00 AC: 0 AN: 79878

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52272

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5608

European-Non Finnish (NFE) AF: 0.00000183 AC: 2 AN: 1095878

Other (OTH) AF: 0.00 AC: 0 AN: 58326

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	6.1
DANN	Benign	0.47
PhyloP100		-0.32
PromoterAI		0.084	Neutral
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs755738638; hg19: chr1-7845040;