VCV000212492.12 - ClinVar

NM_006009.4(TUBA1A):c.273A>G (p.Gln91=)

Germline

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.

(4)

Stars represent the aggregate review status, or the level of review supporting the aggregate germline classification for this VCV record. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. The number of submissions which contribute to this review status is shown in parentheses.

Conflicting classifications of pathogenicity
Uncertain significance(2); Likely benign(1)

criteria provided, conflicting classifications

Somatic

No data submitted for somatic clinical impact

Somatic

No data submitted for oncogenicity

Variant Details

Identifiers

NM_006009.4(TUBA1A):c.273A>G (p.Gln91=)

Variation ID: 212492 Accession: VCV000212492.12

Type and length

single nucleotide variant, 1 bp

Location

Cytogenetic: 12q13.12 12: 49186412 (GRCh38) [ NCBI UCSC ] 12: 49580195 (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	Oct 5, 2015	Oct 8, 2024	Jul 8, 2022

HGVS

Nucleotide	Protein	Molecular consequence
NM_006009.4:c.273A>G MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.	NP_006000.2:p.Gln91=	synonymous
NM_001270399.2:c.273A>G	NP_001257328.1:p.Gln91=	synonymous
NM_001270400.2:c.168A>G	NP_001257329.1:p.Gln56=	synonymous
NC_000012.12:g.49186412T>C
NC_000012.11:g.49580195T>C
NG_008966.1:g.7667A>G

... more HGVS ... less HGVS

Protein change

Other names

Canonical SPDI

NC_000012.12:49186411:T:C

Functional consequence Help The effect of the variant on RNA or protein function, based on experimental evidence from submitters.

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.

Exome Aggregation Consortium (ExAC) 0.00068

Links

ClinGen: CA205585 dbSNP: rs765483435 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.
TUBA1A		No evidence available	No evidence available	GRCh38 GRCh37	371	382

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.
not specified	Uncertain significance (1)	criteria provided, single submitter	May 28, 2015	RCV000192635.6
not provided	Conflicting interpretations of pathogenicity (2)	criteria provided, conflicting classifications	Jul 8, 2022	RCV001568164.7
TUBA1A-related disorder	Likely benign (1)	no assertion criteria provided	Mar 22, 2019	RCV003977533.2

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.	More information 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.
Uncertain significance (May 28, 2015)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: clinical testing	not specified Affected status: unknown Allele origin: germline	Genetic Services Laboratory, University of Chicago Accession: SCV000249300.1 First in ClinVar: Oct 05, 2015 Last updated: Oct 05, 2015
Likely benign (Apr 17, 2021)	criteria provided, single submitter (GeneDx Variant Classification Process June 2021) Method: clinical testing	Not Provided Affected status: yes Allele origin: germline	GeneDx Accession: SCV001791988.1 First in ClinVar: Aug 19, 2021 Last updated: Aug 19, 2021
Uncertain significance (Jul 08, 2022)	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015)) Method: clinical testing	not provided Affected status: unknown Allele origin: germline	Labcorp Genetics (formerly Invitae), Labcorp Accession: SCV003303166.1 First in ClinVar: Feb 07, 2023 Last updated: Feb 07, 2023	Comment: This sequence change affects codon 91 of the TUBA1A mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid … (more) This sequence change affects codon 91 of the TUBA1A mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid sequence of the TUBA1A protein. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with TUBA1A-related conditions. ClinVar contains an entry for this variant (Variation ID: 212492). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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. (less)
Likely benign (Mar 22, 2019)	no assertion criteria provided Method: clinical testing	TUBA1A-related condition Affected status: unknown Allele origin: germline	PreventionGenetics, part of Exact Sciences Accession: SCV004791854.2 First in ClinVar: Mar 16, 2024 Last updated: Oct 08, 2024	Comment: This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).

Comment:

This sequence change affects codon 91 of the TUBA1A mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid sequence of the TUBA1A protein. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with TUBA1A-related conditions. ClinVar contains an entry for this variant (Variation ID: 212492). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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.

Germline Functional Evidence

There is no functional evidence in ClinVar for this variation. If you have generated functional data for this variation, please consider submitting that data to ClinVar.

Comment:

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 rs765483435 ...

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 Oct 08, 2024

ClinVar Genomic variation as it relates to human health

NM_006009.4(TUBA1A):c.273A>G (p.Gln91=)

Variant Details

Genes

Conditions - Germline

Submissions - Germline

Germline Functional Evidence

Citations for germline classification of this variant

Text-mined citations for rs765483435 ...