chr7-124824003-A-G

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The ENST00000357628.8(POT1):c.1864T>C(p.Tyr622His) variant causes a missense change. The variant allele was found at a frequency of 0.00000311 in 1,606,468 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y622S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 1 hom., cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

POT1
ENST00000357628.8 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 6.79

Publications

1 publications found

Variant links:

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]

POT1 Gene-Disease associations (from GenCC):

pulmonary fibrosis and/or bone marrow failure syndrome, telomere-related, 8
Inheritance: AD Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
tumor predisposition syndrome 3
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
glioma susceptibility 9
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
thyroid gland carcinoma
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
cerebroretinal microangiopathy with calcifications and cysts 3
Inheritance: AR Classification: LIMITED Submitted by: G2P, Ambry Genetics

POT1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000357628.8. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
POT1	NM_015450.3	MANE Select	c.1864T>C	p.Tyr622His	missense	Exon 19 of 19	NP_056265.2
POT1	NM_001042594.2		c.1471T>C	p.Tyr491His	missense	Exon 18 of 18	NP_001036059.1
POT1	NR_003102.2		n.2427T>C		non_coding_transcript_exon	Exon 20 of 20

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
POT1	ENST00000357628.8	TSL:2 MANE Select	c.1864T>C	p.Tyr622His	missense	Exon 19 of 19	ENSP00000350249.3
POT1	ENST00000607932.5	TSL:1	n.*218T>C		non_coding_transcript_exon	Exon 14 of 14	ENSP00000476506.1
POT1	ENST00000608057.5	TSL:1	n.*961T>C		non_coding_transcript_exon	Exon 16 of 16	ENSP00000476371.1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

152072

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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

GnomAD2 exomes

AF:

0.0000161

AC:

AN:

248552

AF XY:

0.0000149

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000592

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000333

GnomAD4 exome

AF:

0.00000206

AC:

AN:

1454278

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

723732

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33266

American (AMR)

AF:

0.0000225

AC:

AN:

44464

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26052

East Asian (EAS)

AF:

0.00

AC:

AN:

39514

South Asian (SAS)

AF:

0.00

AC:

AN:

85772

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53328

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5742

European-Non Finnish (NFE)

AF:

0.00000181

AC:

AN:

1106038

Other (OTH)

AF:

0.00

AC:

AN:

60102

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.442

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152190

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74410

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41554

American (AMR)

AF:

0.000131

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67936

Other (OTH)

AF:

0.00

AC:

AN:

2110

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000165

AC:

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Hereditary cancer-predisposing syndrome (1)

Tumor predisposition syndrome 3 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.70

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Pathogenic

0.26

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.44

Eigen

Pathogenic

0.81

Eigen_PC

Pathogenic

0.79

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.93

M_CAP

Benign

0.034

MetaRNN

Uncertain

0.58

MetaSVM

Uncertain

-0.23

MutationAssessor

Pathogenic

3.0

PhyloP100

6.8

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-2.6

REVEL

Uncertain

0.46

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.92

MVP

0.82

MPC

0.36

ClinPred

0.96

GERP RS

6.0

Varity_R

0.78

gMVP

0.87

Mutation Taster

=55/45

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over