rs3792603

Positions:

• chr4-55435891-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_004898.4(CLOCK):​c.2362-297T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.163 in 152,212 control chromosomes in the GnomAD database, including 2,543 homozygotes. 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: 𝑓 0.16 (2543 hom., cov: 32)
• Consequence: CLOCK NM_004898.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.238

Genes affected

CLOCK (HGNC:2082): (clock circadian regulator) The protein encoded by this gene plays a central role in the regulation of circadian rhythms. The protein encodes a transcription factor of the basic helix-loop-helix (bHLH) family and contains DNA binding histone acetyltransferase activity. The encoded protein forms a heterodimer with ARNTL (BMAL1) that binds E-box enhancer elements upstream of Period (PER1, PER2, PER3) and Cryptochrome (CRY1, CRY2) genes and activates transcription of these genes. PER and CRY proteins heterodimerize and repress their own transcription by interacting in a feedback loop with CLOCK/ARNTL complexes. Polymorphisms in this gene may be associated with behavioral changes in certain populations and with obesity and metabolic syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

TMEM165 (HGNC:30760): (transmembrane protein 165) This gene encodes a predicted transmembrane protein with a perinuclear Golgi-like distribution in fibroblasts. Mutations in this gene are associated with the autosomal recessive disorder congenital disorder of glycosylation, type IIk. Knockdown of this gene's expression causes decreased sialylation in HEK cells and suggests this gene plays a role in terminal Golgi glycosylation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2012]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.209 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CLOCK	NM_004898.4	c.2362-297T>C		intron_variant		ENST00000513440.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CLOCK	ENST00000513440.6	c.2362-297T>C		intron_variant		1	NM_004898.4	P1

Frequencies

GnomAD3 genomes AF: 0.163 AC: 24801 AN: 152094 Hom.: 2541 Cov.: 32

Gnomad AFR AF: 0.0488

Gnomad AMI AF: 0.253

Gnomad AMR AF: 0.173

Gnomad ASJ AF: 0.163

Gnomad EAS AF: 0.0977

Gnomad SAS AF: 0.210

Gnomad FIN AF: 0.287

Gnomad MID AF: 0.146

Gnomad NFE AF: 0.212

Gnomad OTH AF: 0.156

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.163 AC: 24808 AN: 152212 Hom.: 2543 Cov.: 32 AF XY: 0.166 AC XY: 12332 AN XY: 74404

Gnomad4 AFR AF: 0.0487

Gnomad4 AMR AF: 0.174

Gnomad4 ASJ AF: 0.163

Gnomad4 EAS AF: 0.0975

Gnomad4 SAS AF: 0.211

Gnomad4 FIN AF: 0.287

Gnomad4 NFE AF: 0.212

Gnomad4 OTH AF: 0.155

Alfa AF: 0.192 Hom.: 1663

Bravo AF: 0.145

Asia WGS AF: 0.176 AC: 611 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	3.1
DANN	Benign	0.59

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

Other links and lift over

dbSNP: rs3792603; hg19: chr4-56302058;