NM_005359.6(SMAD4):c.297G>A (p.Trp99Ter) AND multiple conditions

Germline classification:: Pathogenic (1 submission)
Last evaluated:: Jul 17, 2015
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:: RCV002311328.8

Allele description [Variation Report for NM_005359.6(SMAD4):c.297G>A (p.Trp99Ter)]

NM_005359.6(SMAD4):c.297G>A (p.Trp99Ter)

Gene:

SMAD4:SMAD family member 4 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

18q21.2

Genomic location:

Preferred name:

NM_005359.6(SMAD4):c.297G>A (p.Trp99Ter)

HGVS:

NC_000018.10:g.51048733G>A
NG_013013.2:g.85694G>A
NM_005359.6:c.297G>AMANE SELECT
NP_005350.1:p.Trp99Ter
NP_005350.1:p.Trp99Ter
LRG_318t1:c.297G>A
LRG_318:g.85694G>A
LRG_318p1:p.Trp99Ter
NC_000018.9:g.48575103G>A
NM_005359.5:c.297G>A

Protein change:

W99*

Links:

dbSNP: rs876660079

NCBI 1000 Genomes Browser:

rs876660079

Molecular consequence:

NM_005359.6:c.297G>A - nonsense - [Sequence Ontology: SO:0001587]

Observations:

Condition(s)

Name:: Familial thoracic aortic aneurysm and aortic dissection (TAAD)
Synonyms:: Thoracic aortic aneurysm and aortic dissection; Thoracic aortic aneurysms and dissections
Identifiers:: MONDO: MONDO:0019625; MedGen: C4707243; Orphanet: 91387; OMIM: PS607086

Name:: Hereditary cancer-predisposing syndrome
Synonyms:: Neoplastic Syndromes, Hereditary; Tumor predisposition; Cancer predisposition; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0015356; MeSH: D009386; MedGen: C0027672

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000277200	Ambry Genetics	criteria provided, single submitter (Ambry General Variant Classification Scheme_2022)	Pathogenic (Jul 17, 2015)	germline	clinical testing	Citation Link

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV000277200

Ambry Genetics

criteria provided, single submitter

(Ambry General Variant Classification Scheme_2022)

Pathogenic
(Jul 17, 2015)

germline

clinical testing

Citation Link

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	1	not provided	not provided	1	not provided	clinical testing

Details of each submission

From Ambry Genetics, SCV000277200.6

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

Description

The p.W99* pathogenic mutation (also known as c.297G>A) located in coding exon 2 of the SMAD4 gene, results from a G to A substitution at nucleotide position 297. This changes the amino acid from a tryptophan to a stop codon within coding exon 2. Since premature stop codons are typically deleterious in nature, this alteration is interpreted as a disease-causing mutation (ACMG Recommendations for Standards for Interpretation and Reporting of Sequence Variations. Revision 2007. Genet Med. 2008;10:294).

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

Last Updated: May 1, 2024

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