VCV000989621.5 - ClinVar

NM_001352514.2(HLCS):c.737A>G (p.Tyr246Cys)

Germline

Classification

criteria provided, single submitter. Learn more about how ClinVar calculates review status.

Likely benign

1 out of 2 submissions contributed to this classification

The aggregate germline classification for this variant, typically for a monogenic or Mendelian disorder as in the ACMG/AMP guidelines, or for response to a drug. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the aggregate classification.

Somatic

No data submitted for somatic clinical impact

Somatic

No data submitted for oncogenicity

Variant Details

Identifiers

NM_001352514.2(HLCS):c.737A>G (p.Tyr246Cys)

Variation ID: 989621 Accession: VCV000989621.5

Type and length

single nucleotide variant, 1 bp

Location

Cytogenetic: 21q22.13 21: 36937149 (GRCh38) [ NCBI UCSC ] 21: 38309449 (GRCh37) [ NCBI UCSC ]

Timeline in ClinVar

	First in ClinVar Help The date this variant first appeared in ClinVar with each type of classification.	Last submission Help The date of the most recent submission for each type of classification for this variant.	Last evaluated Help The most recent date that a submitter evaluated this variant for each type of classification.
Germline	Jan 2, 2021	Feb 15, 2026	Aug 21, 2023

HGVS

Nucleotide	Protein	Molecular consequence
NM_001352514.2:c.737A>G MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.	NP_001339443.1:p.Tyr246Cys	missense
NM_000411.8:c.296A>G	NP_000402.3:p.Tyr99Cys	missense
NM_001242784.3:c.296A>G	NP_001229713.1:p.Tyr99Cys	missense
NM_001242785.2:c.296A>G	NP_001229714.1:p.Tyr99Cys	missense
NM_001352515.2:c.296A>G	NP_001339444.1:p.Tyr99Cys	missense
NM_001352516.2:c.296A>G	NP_001339445.1:p.Tyr99Cys	missense
NM_001352517.1:c.296A>G	NP_001339446.1:p.Tyr99Cys	missense
NM_001352518.2:c.296A>G	NP_001339447.1:p.Tyr99Cys	missense
NR_148020.2:n.596A>G		non-coding transcript variant
NR_148021.1:n.753A>G		non-coding transcript variant
NC_000021.9:g.36937149T>C
NC_000021.8:g.38309449T>C
NG_016193.2:g.58246A>G

... more HGVS ... less HGVS

Protein change

Y246C, Y99C

Other names

Canonical SPDI

NC_000021.9:36937148:T:C

Global minor allele frequency (GMAF) Help The global minor allele frequency calculated by the 1000 Genomes Project. The minor allele at this location is indicated in parentheses and may be different from the allele represented by this VCV record.

Allele frequency Help The frequency of the allele represented by this VCV record.

The Genome Aggregation Database (gnomAD), exomes 0.00000

Trans-Omics for Precision Medicine (TOPMed) 0.00000

Exome Aggregation Consortium (ExAC) 0.00001

Links

ClinGen: CA10020706 dbSNP: rs765150200 VarSome

Genes

Gene	OMIM	ClinGen Gene Dosage Sensitivity Curation		Variation Viewer Help Links to Variation Viewer, a genome browser to view variation data from NCBI databases.	Related variants
Gene	OMIM	HI score Help The haploinsufficiency score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.	TS score Help The triplosensitivity score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.		Within gene Help The number of variants in ClinVar that are contained within this gene, with a link to view the list of variants.	All Help The number of variants in ClinVar for this gene, including smaller variants within the gene and larger CNVs that overlap or fully contain the gene.
HLCS		Gene associated with autosomal recessive phenotype	No evidence available	GRCh38 GRCh37	1110	1210

Conditions - Germline

Condition Help The condition for this variant-condition (RCV) record in ClinVar.	Classification Help The aggregate germline classification for this variant-condition (RCV) record in ClinVar. The number of submissions that contribute to this aggregate classification is shown in parentheses. (# of submissions)	Review status Help The aggregate review status for this variant-condition (RCV) record in ClinVar. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status.	Last evaluated Help The most recent date that a submitter evaluated this variant for the condition.	Variation/condition record Help The RCV accession number, with most recent version number, for the variant-condition record, with a link to the RCV web page.
Holocarboxylase synthetase deficiency	Likely benign (2)	criteria provided, single submitter	Aug 21, 2023	RCV001277488.6

Submissions - Germline

Classification Help The submitted germline classification for each SCV record. (Last evaluated)	Review status Help Stars represent the review status, or the level of review supporting the submitted (SCV) record. This value is calculated by NCBI based on data from the submitter. Read our rules for calculating the review status. This column also includes a link to the submitter’s assertion criteria if provided, and the collection method. (Assertion criteria)	Condition Help The condition for the classification, provided by the submitter for this submitted (SCV) record. This column also includes the affected status and allele origin of individuals observed with this variant.	Submitter Help The submitting organization for this submitted (SCV) record. This column also includes the SCV accession and version number, the date this SCV first appeared in ClinVar, and the date that this SCV was last updated in ClinVar.	Expand all rows Collapse all rows Help This column includes more information supporting the classification, including citations, the comment on classification, and detailed evidence provided as observations of the variant by the submitter.
Likely benign (Aug 21, 2023) C Contributing to aggregate classification	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Holocarboxylase synthetase deficiency	Labcorp Genetics (formerly Invitae), Labcorp Accession: SCV002947698.4 First in ClinVar: Feb 07, 2023 Last updated: Feb 15, 2026	Observation: 1 Collection method: clinical testing Allele origin: germline Affected status: unknown Observation 1 Collection method: clinical testing Allele origin: germline Affected status: unknown

Uncertain significance (Sep 04, 2020) N Not contributing to aggregate classification	no assertion criteria provided	Holocarboxylase synthetase deficiency	Natera, Inc. Accession: SCV001464443.1 First in ClinVar: Jan 02, 2021 Last updated: Jan 02, 2021	Observation: 1 Collection method: clinical testing Allele origin: germline Affected status: unknown Observation 1 Collection method: clinical testing Allele origin: germline Affected status: unknown

Citations for germline classification of this variant

There are no citations for germline classification of this variant in ClinVar. If you know of citations for this variation, please consider submitting that information to ClinVar.

Text-mined citations for rs765150200 ...

These citations are identified by LitVar using the rs number, so they may include citations for more than one variant at this location. Please review the LitVar results carefully for your variant of interest.

Record last updated Apr 13, 2026