12-56444961-G-T

Variant names:

• chr12-56444961-G-T
• rs774045
• NM_003920.5:c.-62+4349C>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_003920.5(TIMELESS):​c.-62+4349C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000662 in 150,970 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: 𝑓 0.0000066 (0 hom., cov: 30)
• Consequence: TIMELESS NM_003920.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.221
• Publications: 13 publications found

Genes affected

TIMELESS (HGNC:11813): (timeless circadian regulator) The protein encoded by this gene is highly conserved and is involved in cell survival after damage or stress, increase in DNA polymerase epsilon activity, maintenance of telomere length, and epithelial cell morphogenesis. The encoded protein also plays a role in the circadian rhythm autoregulatory loop, interacting with the PERIOD genes (PER1, PER2, and PER3) and others to downregulate activation of PER1 by CLOCK/ARNTL. Changes in this gene or its expression may promote prostate cancer, lung cancer, breast cancer, and mental disorders. [provided by RefSeq, Feb 2014]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003920.5. 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
	TIMELESS	NM_003920.5	MANE Select	c.-62+4349C>A		intron	N/A	NP_003911.2	Q9UNS1-1
	TIMELESS	NM_001330295.2		c.-62+4349C>A		intron	N/A	NP_001317224.1	Q9UNS1-2
	TIMELESS	NR_138471.2		n.117+4349C>A		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TIMELESS	ENST00000553532.6	TSL:1 MANE Select	c.-62+4349C>A		intron	N/A	ENSP00000450607.1	Q9UNS1-1
	TIMELESS	ENST00000865172.1		c.-62+4349C>A		intron	N/A	ENSP00000535231.1
	TIMELESS	ENST00000927926.1		c.-62+4349C>A		intron	N/A	ENSP00000597985.1

Frequencies

GnomAD3 genomes AF: 0.00000662 AC: 1 AN: 150970 Hom.: 0 Cov.: 30

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

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

GnomAD4 genome AF: 0.00000662 AC: 1 AN: 150970 Hom.: 0 Cov.: 30 AF XY: 0.0000136 AC XY: 1 AN XY: 73532

African (AFR) AF: 0.0000244 AC: 1 AN: 41026

American (AMR) AF: 0.00 AC: 0 AN: 14990

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5166

South Asian (SAS) AF: 0.00 AC: 0 AN: 4780

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10366

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67884

Other (OTH) AF: 0.00 AC: 0 AN: 2062

Alfa AF: 0.00 Hom.: 752

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	1.5
DANN	Benign	0.47
PhyloP100		0.22

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: rs774045; hg19: chr12-56838745;