NM_001376.5(DYNC1H1):c.1817C>T (p.Thr606Ile) AND Charcot-Marie-Tooth disease axonal type 2O

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Feb 10, 2022
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:: RCV002531408.3

Allele description [Variation Report for NM_001376.5(DYNC1H1):c.1817C>T (p.Thr606Ile)]

NM_001376.5(DYNC1H1):c.1817C>T (p.Thr606Ile)

Gene:

DYNC1H1:dynein cytoplasmic 1 heavy chain 1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

14q32.31

Genomic location:

Preferred name:

NM_001376.5(DYNC1H1):c.1817C>T (p.Thr606Ile)

HGVS:

NC_000014.9:g.101986042C>T
NG_008777.1:g.26515C>T
NM_001376.5:c.1817C>TMANE SELECT
NP_001367.2:p.Thr606Ile
NC_000014.8:g.102452379C>T
NM_001376.4:c.1817C>T

Protein change:

T606I

Links:

dbSNP: rs1566999079

NCBI 1000 Genomes Browser:

rs1566999079

Molecular consequence:

NM_001376.5:c.1817C>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Charcot-Marie-Tooth disease axonal type 2O
Synonyms:: CHARCOT-MARIE-TOOTH NEUROPATHY, AXONAL, TYPE 2O; CHARCOT-MARIE-TOOTH DISEASE, AXONAL, AUTOSOMAL DOMINANT, TYPE 2O; Charcot-Marie-Tooth disease, axonal, type 20; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0013644; MedGen: C3280220; Orphanet: 284232; OMIM: 614228

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV003308991	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Feb 10, 2022)	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

SCV003308991

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Feb 10, 2022)

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. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV003308991.2

#	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 threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 606 of the DYNC1H1 protein (p.Thr606Ile). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with DYNC1H1-related conditions. ClinVar contains an entry for this variant (Variation ID: 560994). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt DYNC1H1 protein function. 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: Sep 29, 2024

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