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NM_001082971.2(DDC):c.463G>T (p.Ala155Ser) AND Deficiency of aromatic-L-amino-acid decarboxylase

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Jun 23, 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:
RCV001883826.3

Allele description [Variation Report for NM_001082971.2(DDC):c.463G>T (p.Ala155Ser)]

NM_001082971.2(DDC):c.463G>T (p.Ala155Ser)

Gene:
DDC:dopa decarboxylase [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
7p12.1
Genomic location:
Preferred name:
NM_001082971.2(DDC):c.463G>T (p.Ala155Ser)
HGVS:
  • NC_000007.14:g.50529315C>A
  • NG_008742.1:g.41142G>T
  • NM_000790.4:c.463G>T
  • NM_001082971.2:c.463G>TMANE SELECT
  • NM_001242886.2:c.349G>T
  • NM_001242887.2:c.463G>T
  • NM_001242888.2:c.229G>T
  • NM_001242889.2:c.435+8545G>T
  • NM_001242890.2:c.463G>T
  • NP_000781.2:p.Ala155Ser
  • NP_001076440.2:p.Ala155Ser
  • NP_001229815.2:p.Ala117Ser
  • NP_001229816.2:p.Ala155Ser
  • NP_001229817.2:p.Ala77Ser
  • NP_001229819.2:p.Ala155Ser
  • NC_000007.13:g.50597013C>A
Protein change:
A117S
Links:
dbSNP: rs754716883
NCBI 1000 Genomes Browser:
rs754716883
Molecular consequence:
  • NM_001242889.2:c.435+8545G>T - intron variant - [Sequence Ontology: SO:0001627]
  • NM_000790.4:c.463G>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001082971.2:c.463G>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001242886.2:c.349G>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001242887.2:c.463G>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001242888.2:c.229G>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001242890.2:c.463G>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Deficiency of aromatic-L-amino-acid decarboxylase
Synonyms:
DDC deficiency; Aromatic amino acid decarboxylase deficiency; Dopa decarboxylase deficiency
Identifiers:
MONDO: MONDO:0012084; MedGen: C1291564; Orphanet: 35708; OMIM: 608643

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV002138251Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))		Uncertain significance
(Jun 23, 2022) 		germlineclinical testing

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

Help

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical 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, SCV002138251.2

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (1)

Description

This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 155 of the DDC protein (p.Ala155Ser). This variant is present in population databases (rs754716883, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with DDC-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C65"). 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.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Sep 29, 2024