rs201891953
Variant names:
Your query was ambiguous. Multiple possible variants found:
Variant summary
Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3
The NM_025099.6(CTC1):c.2192G>T(p.Arg731Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000129 in 1,548,554 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R731Q) has been classified as Likely benign.
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 7.2e-7 ( 0 hom. )
Consequence
CTC1
NM_025099.6 missense
NM_025099.6 missense
Scores
3
10
6
Clinical Significance
Not reported in ClinVar
Conservation
PhyloP100: 2.54
Publications
3 publications found
Genes affected
CTC1 (HGNC:26169): (CST telomere replication complex component 1) This gene encodes a component of the CST complex. This complex plays an essential role in protecting telomeres from degradation. This protein also forms a heterodimer with the CST complex subunit STN1 to form the enzyme alpha accessory factor. This enzyme regulates DNA replication. Mutations in this gene are the cause of cerebroretinal microangiopathy with calcifications and cysts. Alternate splicing results in both coding and non-coding variants. [provided by RefSeq, Mar 2012]
CTC1 Gene-Disease associations (from GenCC):
- cerebroretinal microangiopathy with calcifications and cysts 1Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, G2P
- dyskeratosis congenitaInheritance: AR, AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
- Coats plus syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Genome browser will be placed here
ACMG classification
Classification was made for transcript
Our verdict: Uncertain_significance. The variant received 3 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.794
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes 0.00000657 AC: 1AN: 152104Hom.: 0 Cov.: 32 show subpopulations
GnomAD3 genomes
AF:
AC:
1
AN:
152104
Hom.:
Cov.:
32
Gnomad AFR
AF:
Gnomad AMI
AF:
Gnomad AMR
AF:
Gnomad ASJ
AF:
Gnomad EAS
AF:
Gnomad SAS
AF:
Gnomad FIN
AF:
Gnomad MID
AF:
Gnomad NFE
AF:
Gnomad OTH
AF:
GnomAD4 exome AF: 7.16e-7 AC: 1AN: 1396450Hom.: 0 Cov.: 33 AF XY: 0.00000145 AC XY: 1AN XY: 689922 show subpopulations ⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
GnomAD4 exome
AF:
AC:
1
AN:
1396450
Hom.:
Cov.:
33
AF XY:
AC XY:
1
AN XY:
689922
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
AC:
0
AN:
30964
American (AMR)
AF:
AC:
0
AN:
32866
Ashkenazi Jewish (ASJ)
AF:
AC:
0
AN:
21032
East Asian (EAS)
AF:
AC:
0
AN:
39350
South Asian (SAS)
AF:
AC:
0
AN:
73642
European-Finnish (FIN)
AF:
AC:
0
AN:
50570
Middle Eastern (MID)
AF:
AC:
0
AN:
5404
European-Non Finnish (NFE)
AF:
AC:
1
AN:
1085096
Other (OTH)
AF:
AC:
0
AN:
57526
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.225
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome 0.00000657 AC: 1AN: 152104Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74296 show subpopulations
GnomAD4 genome
AF:
AC:
1
AN:
152104
Hom.:
Cov.:
32
AF XY:
AC XY:
0
AN XY:
74296
show subpopulations
African (AFR)
AF:
AC:
0
AN:
41418
American (AMR)
AF:
AC:
0
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
AC:
0
AN:
3470
East Asian (EAS)
AF:
AC:
0
AN:
5192
South Asian (SAS)
AF:
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
AC:
1
AN:
68020
Other (OTH)
AF:
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
Hom.:
Bravo
AF:
ClinVar
Not reported inComputational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
DANN
Benign
DEOGEN2
Uncertain
D
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T
M_CAP
Benign
D
MetaRNN
Pathogenic
D
MetaSVM
Uncertain
D
MutationAssessor
Uncertain
M
PhyloP100
PrimateAI
Benign
T
PROVEAN
Uncertain
D
REVEL
Uncertain
Sift
Benign
T
Sift4G
Uncertain
D
Polyphen
D
Vest4
MutPred
Gain of helix (P = 0.0696);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.