chr7-124843168-T-C

Variant names:

• chr7-124843168-T-C
• rs7801661
• NM_015450.3:c.1007-205A>G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_015450.3(POT1):​c.1007-205A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.247 in 362,668 control chromosomes in the GnomAD database, including 11,939 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.22 (4045 hom., cov: 32)
  • Exomes 𝑓: 0.27 (7894 hom.)
• Consequence: POT1 NM_015450.3 intron
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: 0.497

Genes affected

POT1 (HGNC:17284): (protection of telomeres 1) This gene is a member of the telombin family and encodes a nuclear protein involved in telomere maintenance. Specifically, this protein functions as a member of a multi-protein complex that binds to the TTAGGG repeats of telomeres, regulating telomere length and protecting chromosome ends from illegitimate recombination, catastrophic chromosome instability, and abnormal chromosome segregation. Increased transcriptional expression of this gene is associated with stomach carcinogenesis and its progression. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BP6: Variant 7-124843168-T-C is Benign according to our data. Variant chr7-124843168-T-C is described in ClinVar as [Benign]. Clinvar id is 677024.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.29 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
POT1	NM_015450.3	c.1007-205A>G		intron_variant	Intron 12 of 18	ENST00000357628.8	NP_056265.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
POT1	ENST00000357628.8	c.1007-205A>G		intron_variant	Intron 12 of 18	2	NM_015450.3	ENSP00000350249.3

Frequencies

GnomAD3 genomes AF: 0.218 AC: 33155 AN: 151938 Hom.: 4048 Cov.: 32

Gnomad AFR AF: 0.113

Gnomad AMI AF: 0.262

Gnomad AMR AF: 0.191

Gnomad ASJ AF: 0.282

Gnomad EAS AF: 0.303

Gnomad SAS AF: 0.184

Gnomad FIN AF: 0.201

Gnomad MID AF: 0.231

Gnomad NFE AF: 0.283

Gnomad OTH AF: 0.214

GnomAD4 exome AF: 0.269 AC: 56572 AN: 210612 Hom.: 7894 Cov.: 3 AF XY: 0.270 AC XY: 29158 AN XY: 107986

Gnomad4 AFR exome AF: 0.115

Gnomad4 AMR exome AF: 0.186

Gnomad4 ASJ exome AF: 0.275

Gnomad4 EAS exome AF: 0.331

Gnomad4 SAS exome AF: 0.179

Gnomad4 FIN exome AF: 0.226

Gnomad4 NFE exome AF: 0.281

Gnomad4 OTH exome AF: 0.243

GnomAD4 genome AF: 0.218 AC: 33142 AN: 152056 Hom.: 4045 Cov.: 32 AF XY: 0.214 AC XY: 15892 AN XY: 74340

Gnomad4 AFR AF: 0.113

Gnomad4 AMR AF: 0.190

Gnomad4 ASJ AF: 0.282

Gnomad4 EAS AF: 0.302

Gnomad4 SAS AF: 0.185

Gnomad4 FIN AF: 0.201

Gnomad4 NFE AF: 0.283

Gnomad4 OTH AF: 0.213

Alfa AF: 0.265 Hom.: 3182

Bravo AF: 0.215

Asia WGS AF: 0.230 AC: 796 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

-

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Jun 15, 2018

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	5.3
DANN	Benign	0.70

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: rs7801661; hg19: chr7-124483222; COSMIC: COSV62928764; COSMIC: COSV62928764;