chr7-124892319-T-C

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_015450.3(POT1):​c.71A>G​(p.Asn24Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000778 in 1,541,440 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 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. N24D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000050 ( 0 hom. )

Consequence

POT1
NM_015450.3 missense

Scores

1
9
8

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 3.87

Publications

3 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.33774412).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015450.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POT1
NM_015450.3
MANE Select
c.71A>Gp.Asn24Ser
missense
Exon 6 of 19NP_056265.2Q9NUX5-1
POT1
NM_001042594.2
c.-192A>G
5_prime_UTR
Exon 6 of 18NP_001036059.1A8MTK3
POT1
NR_003102.2
n.514A>G
non_coding_transcript_exon
Exon 6 of 20

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POT1
ENST00000357628.8
TSL:2 MANE Select
c.71A>Gp.Asn24Ser
missense
Exon 6 of 19ENSP00000350249.3Q9NUX5-1
POT1
ENST00000607932.5
TSL:1
n.71A>G
non_coding_transcript_exon
Exon 2 of 14ENSP00000476506.1Q5MJ34
POT1
ENST00000608057.5
TSL:1
n.71A>G
non_coding_transcript_exon
Exon 2 of 16ENSP00000476371.1Q5MJ35

Frequencies

GnomAD3 genomes
AF:
0.0000330
AC:
5
AN:
151490
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
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
GnomAD2 exomes
AF:
0.0000159
AC:
3
AN:
188946
AF XY:
0.0000193
show subpopulations
Gnomad AFR exome
AF:
0.000256
Gnomad AMR exome
AF:
0.00
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:
0.00
GnomAD4 exome
AF:
0.00000504
AC:
7
AN:
1389832
Hom.:
0
Cov.:
29
AF XY:
0.00000435
AC XY:
3
AN XY:
690048
show subpopulations
African (AFR)
AF:
0.000105
AC:
3
AN:
28450
American (AMR)
AF:
0.00
AC:
0
AN:
28964
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24146
East Asian (EAS)
AF:
0.00
AC:
0
AN:
34412
South Asian (SAS)
AF:
0.00
AC:
0
AN:
74584
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52760
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5562
European-Non Finnish (NFE)
AF:
0.00000277
AC:
3
AN:
1083604
Other (OTH)
AF:
0.0000174
AC:
1
AN:
57350
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000330
AC:
5
AN:
151608
Hom.:
0
Cov.:
32
AF XY:
0.0000405
AC XY:
3
AN XY:
74128
show subpopulations
African (AFR)
AF:
0.000121
AC:
5
AN:
41482
American (AMR)
AF:
0.00
AC:
0
AN:
15150
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3456
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67584
Other (OTH)
AF:
0.00
AC:
0
AN:
2104
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.545
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000663
Hom.:
0
Bravo
AF:
0.0000567
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
1
-
Hereditary cancer-predisposing syndrome (1)
-
1
-
POT1-related disorder (1)
-
1
-
Tumor predisposition syndrome 3 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.21
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.30
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.83
D
Eigen
Uncertain
0.32
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Benign
0.83
T
M_CAP
Benign
0.030
D
MetaRNN
Benign
0.34
T
MetaSVM
Benign
-0.81
T
MutationAssessor
Uncertain
2.7
M
PhyloP100
3.9
PrimateAI
Uncertain
0.64
T
PROVEAN
Uncertain
-3.6
D
REVEL
Uncertain
0.30
Sift
Benign
0.040
D
Sift4G
Uncertain
0.055
T
Polyphen
0.58
P
Vest4
0.88
MVP
0.62
MPC
1.8
ClinPred
0.68
D
GERP RS
5.7
Varity_R
0.48
gMVP
0.83
Mutation Taster
=51/49
polymorphism

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

Other links and lift over

dbSNP: rs372235657; hg19: chr7-124532373; COSMIC: COSV62928268; COSMIC: COSV62928268; API