NM_000170.3(GLDC):c.1229G>A (p.Arg410Lys) AND Non-ketotic hyperglycinemia

This record was updated by the submitter. Please see the current version.

Germline classification:: Conflicting interpretations of pathogenicity (6 submissions)
Last evaluated:: Feb 1, 2024
Review status:: criteria provided, conflicting classifications

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:: RCV000299139.23

Allele description

NM_000170.3(GLDC):c.1229G>A (p.Arg410Lys)

Gene:

GLDC:glycine decarboxylase [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

9p24.1

Genomic location:

Preferred name:

NM_000170.3(GLDC):c.1229G>A (p.Arg410Lys)

HGVS:

NC_000009.12:g.6595046C>T
NG_016397.1:g.55647G>A
NM_000170.3:c.1229G>AMANE SELECT
NP_000161.2:p.Arg410Lys
NP_000161.2:p.Arg410Lys
LRG_643t1:c.1229G>A
LRG_643:g.55647G>A
LRG_643p1:p.Arg410Lys
NC_000009.11:g.6595046C>T
NM_000170.2:c.1229G>A

Protein change:

R410K

Links:

dbSNP: rs144090917

NCBI 1000 Genomes Browser:

rs144090917

Molecular consequence:

NM_000170.3:c.1229G>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Non-ketotic hyperglycinemia
Synonyms:: Glycine encephalopathy; Nonketotic hyperglycinemia
Identifiers:: MONDO: MONDO:0011612; MedGen: C0751748; Orphanet: 407; OMIM: PS605899; Human Phenotype Ontology: HP:0008288

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000267344	Soonchunhyang University Bucheon Hospital, Soonchunhyang University Medical Center	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Mar 18, 2016)	germline	reference population	PubMed (2) [See all records that cite these PMIDs] 12126939, 25741868
SCV000480516	Illumina Laboratory Services, Illumina	criteria provided, single submitter (ICSL Variant Classification Criteria 13 December 2019)	Likely benign (Apr 28, 2017)	germline	clinical testing	PubMed (1) [See all records that cite this PMID] Citation Link,
SCV000636350	Invitae	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Benign (Feb 1, 2024)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001137744	Mendelics	criteria provided, single submitter (Mendelics Assertion Criteria 2017)	Benign (Jul 13, 2023)	unknown	clinical testing	Citation Link,
SCV001435262	Broad Center for Mendelian Genomics, Broad Institute of MIT and Harvard	criteria provided, single submitter (ACMG Guidelines, 2015)	Benign	germline	research	PubMed (2) [See all records that cite these PMIDs] 12126939, 25741868
SCV001462765	Natera, Inc.	no assertion criteria provided	Benign (Jan 9, 2020)	germline	clinical testing

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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
not provided	germline	yes	not provided	not provided	not provided	not provided	not provided	research
not provided	unknown	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing
East Asian	germline	unknown	1	not provided	not provided	not provided	not provided	reference population

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

Novel mutations in the P-protein (glycine decarboxylase) gene in patients with glycine encephalopathy (non-ketotic hyperglycinemia).

Toone JR, Applegarth DA, Kure S, Coulter-Mackie MB, Sazegar P, Kojima K, Ichinohe A.

Mol Genet Metab. 2002 Jul;76(3):243-9.

PubMed [citation]

PMID:: 12126939

See all PubMed Citations (3)

Details of each submission

From Soonchunhyang University Bucheon Hospital, Soonchunhyang University Medical Center, SCV000267344.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	East Asian	1	not provided	not provided	reference population	PubMed (2)

#	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		1	not provided	not provided	not provided

From Illumina Laboratory Services, Illumina, SCV000480516.3

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

Description

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign.

#	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

From Invitae, SCV000636350.8

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

#	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

From Mendelics, SCV001137744.2

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

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

From Broad Center for Mendelian Genomics, Broad Institute of MIT and Harvard, SCV001435262.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	research	PubMed (2)

Description

The homozygous p.Arg410Lys variant in GLDC has been identified in an individual with non-ketotic hyperglycinaemia (PMID: 12126939), but has also been identified in >2% of Latino chromosomes and 8 homozygotes by ExAC (http://gnomad.broadinstitute.org/). In summary, this variant meets criteria to be classified as benign for autosomal recessive non-ketotic hyperglycinaemia.

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

From Natera, Inc., SCV001462765.1

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

#	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: Aug 4, 2024

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