VCV001794630.3 - ClinVar

NM_000533.5(PLP1):c.110A>C (p.His37Pro)

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_000533.5(PLP1):c.110A>C (p.His37Pro)

Variation ID: 1794630 Accession: VCV001794630.3

Type and length

single nucleotide variant, 1 bp

Location

Cytogenetic: Xq22.2 X: 103785687 (GRCh38) [ NCBI UCSC ] X: 103040616 (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	Nov 29, 2022	Jul 29, 2024	Jun 14, 2024

HGVS

Nucleotide	Protein	Molecular consequence
NM_000533.5:c.110A>C MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.	NP_000524.3:p.His37Pro	missense
NM_001128834.3:c.110A>C	NP_001122306.1:p.His37Pro	missense
NM_001305004.1:c.5-60A>C		intron variant
NM_199478.3:c.110A>C	NP_955772.1:p.His37Pro	missense
NC_000023.11:g.103785687A>C
NC_000023.10:g.103040616A>C
NG_008863.2:g.14177A>C
NG_016452.2:g.51596T>G

... more HGVS ... less HGVS

Protein change

H37P

Other names

Canonical SPDI

NC_000023.11:103785686:A: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.

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.
PLP1		Sufficient evidence for dosage pathogenicity	Sufficient evidence for dosage pathogenicity	GRCh38 GRCh37	17	609
RAB9B		-	-	GRCh38 GRCh37	3	594

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.
Inborn genetic diseases	Uncertain significance (1)	criteria provided, single submitter	Jan 23, 2018	RCV002437310.2
Pelizaeus-Merzbacher disease	Likely pathogenic (1)	criteria provided, single submitter	Jun 14, 2024	RCV004595664.1

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 (Jan 23, 2018)	criteria provided, single submitter (Ambry Variant Classification Scheme 2023) Method: clinical testing	Inborn genetic diseases Affected status: unknown Allele origin: germline	Ambry Genetics Accession: SCV002744773.2 First in ClinVar: Nov 29, 2022 Last updated: May 01, 2024	Comment: The p.H37P variant (also known as c.110A>C), located in coding exon 2 of the PLP1 gene, results from an A to C substitution at nucleotide … (more) The p.H37P variant (also known as c.110A>C), located in coding exon 2 of the PLP1 gene, results from an A to C substitution at nucleotide position 110. The histidine at codon 37 is replaced by proline, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. (less)
Likely pathogenic (Jun 14, 2024)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: clinical testing	Pelizaeus-Merzbacher disease (X-linked inheritance) Affected status: yes, unknown Allele origin: unknown	Molecular Diagnostics Lab, Nemours Children's Health, Delaware Accession: SCV005088445.1 First in ClinVar: Jul 29, 2024 Last updated: Jul 29, 2024	Comment: This missense variant (c.110T>C, p.His37Pro) has not been observed in population databases (gnomAD). It has not been described in the literature. Variant prediction programs suggest … (more) This missense variant (c.110T>C, p.His37Pro) has not been observed in population databases (gnomAD). It has not been described in the literature. Variant prediction programs suggest a deleterious effect on the PLP1 protein, but no functional studies have been published. (less) Observation 1: Clinical Features: Profound static encephalopathy (present) , Bilateral vocal cord paralysis (present) , Gastroesophageal reflux (present) Age: 0-9 years Sex: male Tissue: blood Observation 2: Age: 0-9 years Sex: male Tissue: blood

Comment:

The p.H37P variant (also known as c.110A>C), located in coding exon 2 of the PLP1 gene, results from an A to C substitution at nucleotide position 110. The histidine at codon 37 is replaced by proline, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

Comment:

This missense variant (c.110T>C, p.His37Pro) has not been observed in population databases (gnomAD). It has not been described in the literature. Variant prediction programs suggest a deleterious effect on the PLP1 protein, but no functional studies have been published.

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 this variant ...

Record last updated Jul 29, 2024

ClinVar Genomic variation as it relates to human health

NM_000533.5(PLP1):c.110A>C (p.His37Pro)

Variant Details

Genes

Conditions - Germline

Submissions - Germline

Germline Functional Evidence

Citations for germline classification of this variant

Text-mined citations for this variant ...