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NM_019109.5(ALG1):c.176A>C (p.His59Pro) AND ALG1-congenital disorder of glycosylation

Germline classification:
Uncertain significance (2 submissions)
Last evaluated:
Jul 14, 2022
Review status:
2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts
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:
RCV002032638.6

Allele description [Variation Report for NM_019109.5(ALG1):c.176A>C (p.His59Pro)]

NM_019109.5(ALG1):c.176A>C (p.His59Pro)

Genes:
ALG1:ALG1 chitobiosyldiphosphodolichol beta-mannosyltransferase [Gene - OMIM - HGNC]
LOC130058384:ATAC-STARR-seq lymphoblastoid active region 10349 [Gene]
Variant type:
single nucleotide variant
Cytogenetic location:
16p13.3
Genomic location:
Preferred name:
NM_019109.5(ALG1):c.176A>C (p.His59Pro)
HGVS:
  • NC_000016.10:g.5072025A>C
  • NG_009202.1:g.5217A>C
  • NM_019109.5:c.176A>CMANE SELECT
  • NP_061982.3:p.His59Pro
  • NC_000016.9:g.5122026A>C
  • NM_019109.4:c.176A>C
Protein change:
H59P
Links:
dbSNP: rs773372110
NCBI 1000 Genomes Browser:
rs773372110
Molecular consequence:
  • NM_019109.5:c.176A>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
ALG1-congenital disorder of glycosylation
Synonyms:
CONGENITAL DISORDER OF GLYCOSYLATION, TYPE Ik; CDG Ik; Congenital disorder of glycosylation type 1K; See all synonyms [MedGen]
Identifiers:
MONDO: MONDO:0012052; MedGen: C2931005; Orphanet: 79327; OMIM: 608540

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV002154677Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))		Uncertain significance
(Jul 14, 2022) 		germlineclinical testing

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

SCV002802107Fulgent Genetics, Fulgent Genetics
criteria provided, single submitter

(ACMG Guidelines, 2015)		Uncertain significance
(May 19, 2022) 		unknownclinical 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
not providedunknownunknownnot 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

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee.

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]
PMID:
25741868
PMCID:
PMC4544753

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV002154677.2

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

Description

This sequence change replaces histidine, which is basic and polar, with proline, which is neutral and non-polar, at codon 59 of the ALG1 protein (p.His59Pro). This variant is present in population databases (no rsID available, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with ALG1-related conditions. ClinVar contains an entry for this variant (Variation ID: 1254626). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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

From Fulgent Genetics, Fulgent Genetics, SCV002802107.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (1)
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1unknownunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Sep 29, 2024