VCV002505338.2 - ClinVar

NM_000209.4(PDX1):c.735dup (p.Gly246fs)

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.

(1)

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.

Likely pathogenic

criteria provided, single submitter

Somatic

No data submitted for somatic clinical impact

Somatic

No data submitted for oncogenicity

Variant Details

Identifiers

NM_000209.4(PDX1):c.735dup (p.Gly246fs)

Variation ID: 2505338 Accession: VCV002505338.2

Type and length

Duplication, 1 bp

Location

Cytogenetic: 13q12.2 13: 27924583-27924584 (GRCh38) [ NCBI UCSC ] 13: 28498720-28498721 (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	Dec 2, 2023	Jan 6, 2024	May 31, 2023

HGVS

Nucleotide	Protein	Molecular consequence
NM_000209.4:c.735dup MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.	NP_000200.1:p.Gly246fs	frameshift
NC_000013.11:g.27924584dup
NC_000013.10:g.28498721dup
NG_008183.1:g.9554dup
NG_127503.1:g.215dup

... more HGVS ... less HGVS

Protein change

G246fs

Other names

Canonical SPDI

NC_000013.11:27924583:A:AA

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.
PDX1		-	-	GRCh38 GRCh37	168	204

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.
Maturity-onset diabetes of the young type 4	Likely pathogenic (1)	criteria provided, single submitter	May 31, 2023	RCV003444069.2

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.
Likely pathogenic (May 31, 2023)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: clinical testing	Maturity-onset diabetes of the young type 4 (Autosomal dominant inheritance) Affected status: yes Allele origin: paternal	Department of Laboratory Medicine, Seoul National University Bundang Hospital Accession: SCV003932341.2 First in ClinVar: Dec 02, 2023 Last updated: Jan 06, 2024	Publications: PubMed (2) PubMed: 37652665‚ 30192042 Comment: The frameshift variant detected in this study was located at the 3' end of the last exon of PDX1 gene, predicted to result in less … (more) The frameshift variant detected in this study was located at the 3' end of the last exon of PDX1 gene, predicted to result in less than 10 % decrease in the total protein (PVS1_Moderate). The variant segregated during more than four meioses in the family (PP1_Moderate), and it is extremely rare in the general gnomAD population (PM2_Supporting). PP4 was also applied based on the calculated score of 75.5% on the Exeter MODY probability calculator. In summary, it was classified as likely pathogenic. (less) Number of individuals with the variant: 5 Age: 10-19 years

Comment:

The frameshift variant detected in this study was located at the 3' end of the last exon of PDX1 gene, predicted to result in less than 10 % decrease in the total protein (PVS1_Moderate). The variant segregated during more than four meioses in the family (PP1_Moderate), and it is extremely rare in the general gnomAD population (PM2_Supporting). PP4 was also applied based on the calculated score of 75.5% on the Exeter MODY probability calculator. In summary, it 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
Novel pathogenic PDX1 gene variant in a Korean family with maturity-onset diabetes of the young.	Kim H	Cold Spring Harbor molecular case studies	2024	PMID: 37652665
Recommendations for interpreting the loss of function PVS1 ACMG/AMP variant criterion.	Abou Tayoun AN	Human mutation	2018	PMID: 30192042

Text-mined citations for this variant ...

Record last updated Jan 06, 2024

ClinVar Genomic variation as it relates to human health

NM_000209.4(PDX1):c.735dup (p.Gly246fs)

Variant Details

Genes

Conditions - Germline

Submissions - Germline

Germline Functional Evidence

Citations for germline classification of this variant

Text-mined citations for this variant ...