NM_025099.6(CTC1):c.1602C>A (p.His534Gln) AND Dyskeratosis congenita

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Oct 31, 2018
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV000815141.1

Allele description [Variation Report for NM_025099.6(CTC1):c.1602C>A (p.His534Gln)]

NM_025099.6(CTC1):c.1602C>A (p.His534Gln)

Gene:

CTC1:CST telomere replication complex component 1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

17p13.1

Genomic location:

Preferred name:

NM_025099.6(CTC1):c.1602C>A (p.His534Gln)

HGVS:

NC_000017.11:g.8234764G>T
NG_032148.2:g.18332C>A
NM_025099.6:c.1602C>AMANE SELECT
NP_079375.3:p.His534Gln
LRG_1124t1:c.1602C>A
LRG_1124:g.18332C>A
LRG_1124p1:p.His534Gln
NC_000017.10:g.8138082G>T
NM_025099.5:c.1602C>A
NR_046431.2:n.1517C>A

Protein change:

H534Q

Links:

dbSNP: rs1421770599

NCBI 1000 Genomes Browser:

rs1421770599

Molecular consequence:

NM_025099.6:c.1602C>A - missense variant - [Sequence Ontology: SO:0001583]
NR_046431.2:n.1517C>A - non-coding transcript variant - [Sequence Ontology: SO:0001619]

Condition(s)

Name:: Dyskeratosis congenita
Identifiers:: MONDO: MONDO:0015780; MedGen: C0265965; OMIM: PS127550

Recent activity

Clear Turn Off Turn On

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

Help

Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000955587	Invitae	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Oct 31, 2018)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV000955587

Invitae

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Oct 31, 2018)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240-242.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Details of each submission

From Invitae, SCV000955587.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

This sequence change replaces histidine with glutamine at codon 534 of the CTC1 protein (p.His534Gln). The histidine residue is moderately conserved and there is a small physicochemical difference between histidine and glutamine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with CTC1-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glutamine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Apr 23, 2022

ClinVar

Relating variation to medicine