Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_025099.6(CTC1):c.3583C>G(p.Arg1195Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict 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. R1195Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Consequence

CTC1
NM_025099.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.29

Publications

1 publications found

Variant links:

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 1
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, G2P
dyskeratosis congenita
Inheritance: AR, AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
Coats plus syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

CTC1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.20366585).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_025099.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CTC1	NM_025099.6	MANE Select	c.3583C>G	p.Arg1195Gly	missense	Exon 23 of 23	NP_079375.3
CTC1	NM_001411067.1		c.3352C>G	p.Arg1118Gly	missense	Exon 21 of 21	NP_001397996.1
CTC1	NR_046431.2		n.3433C>G		non_coding_transcript_exon	Exon 22 of 22

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CTC1	ENST00000651323.1	MANE Select	c.3583C>G	p.Arg1195Gly	missense	Exon 23 of 23	ENSP00000498499.1
CTC1	ENST00000932859.1		c.3550C>G	p.Arg1184Gly	missense	Exon 23 of 23	ENSP00000602918.1
CTC1	ENST00000968384.1		c.3487C>G	p.Arg1163Gly	missense	Exon 23 of 23	ENSP00000638443.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000401

AC:

AN:

249524

AF XY:

0.00000739

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Dyskeratosis congenita (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Uncertain

0.048

BayesDel_noAF

Benign

-0.17

CADD

Benign

(source)

DANN

Benign

0.90

DEOGEN2

Benign

0.39

Eigen

Benign

-0.47

Eigen_PC

Benign

-0.51

FATHMM_MKL

Benign

0.20

LIST_S2

Benign

0.77

M_CAP

Benign

0.070

MetaRNN

Benign

0.20

MetaSVM

Benign

-0.53

MutationAssessor

Uncertain

2.3

PhyloP100

1.3

PrimateAI

Benign

0.22

PROVEAN

Benign

-2.3

REVEL

Uncertain

0.39

Sift

Benign

0.037

Sift4G

Uncertain

0.025

Polyphen

0.63

Vest4

0.30

MutPred

0.48

Loss of methylation at R1195 (P = 0.0118)

MVP

0.54

MPC

0.29

ClinPred

0.22

GERP RS

2.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.23

gMVP

0.55

Mutation Taster

=59/41

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

NM_025099.6:c.3583C>G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over