VCV003065108.2 - ClinVar

NM_024306.5(FA2H):c.688G>A (p.Glu230Lys)

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.

(2)

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
Likely pathogenic(1); Uncertain significance(1)

criteria provided, conflicting classifications

Somatic

No data submitted for somatic clinical impact

Somatic

No data submitted for oncogenicity

Variant Details

Identifiers

NM_024306.5(FA2H):c.688G>A (p.Glu230Lys)

Variation ID: 3065108 Accession: VCV003065108.2

Type and length

single nucleotide variant, 1 bp

Location

Cytogenetic: 16q23.1 16: 74719086 (GRCh38) [ NCBI UCSC ] 16: 74752984 (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	Apr 6, 2024	Jul 15, 2024	Apr 24, 2024

HGVS

Nucleotide	Protein	Molecular consequence
NM_024306.5:c.688G>A MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.	NP_077282.3:p.Glu230Lys	missense
NC_000016.10:g.74719086C>T
NC_000016.9:g.74752984C>T
NG_017070.1:g.60746G>A

Protein change

E230K

Other names

Canonical SPDI

NC_000016.10:74719085:C:T

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.

Links

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.
FA2H		-	-	GRCh38 GRCh37	292	418

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.
Hereditary spastic paraplegia 35	Conflicting interpretations of pathogenicity (2)	criteria provided, conflicting classifications	Apr 24, 2024	RCV003990185.3

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 (Mar 26, 2024)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: clinical testing	Hereditary spastic paraplegia 35 Affected status: unknown Allele origin: germline	Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center Accession: SCV004806568.1 First in ClinVar: Apr 06, 2024 Last updated: Apr 06, 2024
Likely pathogenic (Apr 24, 2024)	criteria provided, single submitter (LabCorp Variant Classification Summary - May 2015) Method: clinical testing	Hereditary spastic paraplegia 35 Affected status: unknown Allele origin: germline	Women's Health and Genetics/Laboratory Corporation of America, LabCorp Accession: SCV005076567.1 First in ClinVar: Jul 15, 2024 Last updated: Jul 15, 2024	Publications: PubMed (3) PubMed: 23566484‚ 36109173‚ 32619247 Comment: Variant summary: FA2H c.688G>A (p.Glu230Lys) results in a conservative amino acid change located in the Fatty acid hydroxylase (IPR006694) of the encoded protein sequence. Three … (more) Variant summary: FA2H c.688G>A (p.Glu230Lys) results in a conservative amino acid change located in the Fatty acid hydroxylase (IPR006694) of the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 4e-06 in 251198 control chromosomes. c.688G>A has been reported in the literature in at-least four individuals affected with Hereditary Spastic Paraplegia (Cao_2020,5. Wang_2022, Xie_2020). These data indicate that the variant is likely to be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 23566484, 36109173, 32619247). ClinVar contains an entry for this variant (Variation ID: 3065108). Based on the evidence outlined above, the variant was classified as likely pathogenic. (less)

Comment:

Variant summary: FA2H c.688G>A (p.Glu230Lys) results in a conservative amino acid change located in the Fatty acid hydroxylase (IPR006694) of the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 4e-06 in 251198 control chromosomes. c.688G>A has been reported in the literature in at-least four individuals affected with Hereditary Spastic Paraplegia (Cao_2020,5. Wang_2022, Xie_2020). These data indicate that the variant is likely to be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 23566484, 36109173, 32619247). ClinVar contains an entry for this variant (Variation ID: 3065108). Based on the evidence outlined above, the variant was classified as likely pathogenic.

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

Title	Author	Journal	Year	Link
Clinical and genetic spectrum of hereditary spastic paraplegia in Chinese children.	Wang J	Developmental medicine and child neurology	2023	PMID: 36109173
[Clinical characteristics and variant analysis of five pedigrees with hereditary spastic paraplegia].	Xie Y	Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics	2020	PMID: 32619247
A rare family with Hereditary Spastic Paraplegia Type 35 due to novel FA2H mutations: a case report with literature review.	Cao L	Journal of the neurological sciences	2013	PMID: 23566484

Text-mined citations for this variant ...

Record last updated Aug 04, 2024

ClinVar Genomic variation as it relates to human health

NM_024306.5(FA2H):c.688G>A (p.Glu230Lys)

Variant Details

Genes

Conditions - Germline

Submissions - Germline

Germline Functional Evidence

Citations for germline classification of this variant

Text-mined citations for this variant ...