rs10244817

Positions:

• chr7-124827416-T-C

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.1595-111A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.254 in 477,982 control chromosomes in the GnomAD database, including 16,258 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.22 (4044 hom., cov: 32)
  • Exomes 𝑓: 0.27 (12214 hom.)
• Consequence: POT1 NM_015450.3 intron
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: 0.0490

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=-0.87).
• BP6: Variant 7-124827416-T-C is Benign according to our data. Variant chr7-124827416-T-C is described in ClinVar as [Benign]. Clinvar id is 677025.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/exons	MANE	Protein	UniProt
POT1	NM_015450.3	c.1595-111A>G		intron_variant		ENST00000357628.8	NP_056265.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
POT1	ENST00000357628.8	c.1595-111A>G		intron_variant		2	NM_015450.3	ENSP00000350249	P1

Frequencies

GnomAD3 genomes AF: 0.218 AC: 33105 AN: 152016 Hom.: 4047 Cov.: 32

Gnomad AFR AF: 0.112

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: 0.200

Gnomad MID AF: 0.228

Gnomad NFE AF: 0.283

Gnomad OTH AF: 0.214

GnomAD4 exome AF: 0.271 AC: 88438 AN: 325848 Hom.: 12214 AF XY: 0.273 AC XY: 46053 AN XY: 168852

Gnomad4 AFR exome AF: 0.112

Gnomad4 AMR exome AF: 0.184

Gnomad4 ASJ exome AF: 0.280

Gnomad4 EAS exome AF: 0.331

Gnomad4 SAS exome AF: 0.194

Gnomad4 FIN exome AF: 0.225

Gnomad4 NFE exome AF: 0.286

Gnomad4 OTH exome AF: 0.251

GnomAD4 genome AF: 0.218 AC: 33091 AN: 152134 Hom.: 4044 Cov.: 32 AF XY: 0.213 AC XY: 15848 AN XY: 74362

Gnomad4 AFR AF: 0.111

Gnomad4 AMR AF: 0.191

Gnomad4 ASJ AF: 0.282

Gnomad4 EAS AF: 0.302

Gnomad4 SAS AF: 0.184

Gnomad4 FIN AF: 0.200

Gnomad4 NFE AF: 0.283

Gnomad4 OTH AF: 0.213

Alfa AF: 0.259 Hom.: 1112

Bravo AF: 0.215

Asia WGS AF: 0.228 AC: 792 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Jun 15, 2018	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	-0.87
CADD	Benign	0.56
DANN	Benign	0.77

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: rs10244817; hg19: chr7-124467470;