PRX periaxin [Homo sapiens (human)] - Gene

Summary

Official Symbol: PRXprovided by HGNC
Official Full Name: periaxinprovided by HGNC
Primary source: HGNC:HGNC:13797
See related: Ensembl:ENSG00000105227 MIM:605725; AllianceGenome:HGNC:13797
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Homo sapiens
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as: CMT4F
Summary: This gene encodes a protein involved in peripheral nerve myelin upkeep. The encoded protein contains 2 PDZ domains which were named after PSD95 (post synaptic density protein), DlgA (Drosophila disc large tumor suppressor), and ZO1 (a mammalian tight junction protein). Two alternatively spliced transcript variants have been described for this gene which encode different protein isoforms and which are targeted differently in the Schwann cell. Mutations in this gene cause Charcot-Marie-Tooth neuoropathy, type 4F and Dejerine-Sottas neuropathy. [provided by RefSeq, Jul 2008]
Expression: Broad expression in lung (RPKM 13.6), ovary (RPKM 2.9) and 16 other tissues See more
Orthologs: mouse all
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Genomic context

Location:: 19q13.2

Exon count:: 8

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCh38.p14 (GCF_000001405.40)	19	NC_000019.10 (40393764..40414789, complement)
RS_2024_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	19	NC_060943.1 (43214390..43235423, complement)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	19	NC_000019.9 (40899671..40920696, complement)

Chromosome 19 - NC_000019.10 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

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See details

Project title: HPA RNA-seq normal tissues HPA RNA-seq normal tissues
Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
BioProject: PRJEB4337
Publication: PMID 24309898
Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

The study identified a variant of periaxin in a Chinese family with congenital cataract by exome sequencing.
Title: Identification of a PRX variant in a Chinese family with congenital cataract by exome sequencing.
results offer a possible mechanism to the formation of periaxin complexes, improvement of complex stability, and establishment of a link between the extracellular matrix and the cytoskeleton
Title: Intermolecular disulfide bond in the dimerization of S-periaxin mediated by Cys88 and Cys139.
we were able to simplify this complex phenotype and identified a causative mutation (p.R1070*) in the gene periaxin (PRX), a gene previously shown to cause peripheral neuropathy (Dejerine-Sottas syndrome) when this mutation is present
Title: The use of whole-exome sequencing to disentangle complex phenotypes.
Study of the periaxin gene should be considered in patients with severe demyelinating neuropathy associated with early infantile scoliosis.
Title: [Charcot-Marie-Tooth disease associated with periaxin mutations (CMT4F): Clinical, electrophysiological and genetic analysis of 24 patients].
a variation of clinical phenotypes for CMT4F caused by a novel, nonsense PRX mutation, was shown.
Title: Late-onset Charcot-Marie-Tooth disease 4F caused by periaxin gene mutation.
Novel mutations in the PRX and the MTMR2 genes are responsible for unusual Charcot-Marie-Tooth disease phenotypes.
Title: Novel mutations in the PRX and the MTMR2 genes are responsible for unusual Charcot-Marie-Tooth disease phenotypes.
In this review, periaxin protein is required for the maintenance of peripheral nerve myelin; however, patients with PRX mutations have early-onset autosomal recessive demyelinating Charcot-Marie-Tooth disease or Dejerine-Sottas neuropathy.
Title: Four novel cases of periaxin-related neuropathy and review of the literature.
novel mutation in vocal cord paralysis
Title: Laryngeal neuropathy of Charcot-Marie-Tooth disease: further observations and novel mutations associated with vocal fold paresis.
Thirty sequence variants have been found in the analysed genes from patients with Charcot-Marie-Tooth disorders: 5 pathogenic mutations in the GDAP1 gene and 2 pathogenic mutations in the PRX gene.
Title: [Charcot-Marie-Tooth disorders with autosomal recessive inheritance. Search for the molecular diagnostics model].
Data show that the mutations in the periaxin (PRX) gene is associated with early-onset demyelinating AR-CMT and severe sensory loss.
Title: Two novel mutations in the GDAP1 and PRX genes in early onset Charcot-Marie-Tooth syndrome.

Submit: New GeneRIF Correction See all GeneRIFs (15)

Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Associated conditions

Description	Tests
Charcot-Marie-Tooth disease type 4F MedGen: C3540453 OMIM: 614895 GeneReviews: Charcot-Marie-Tooth Hereditary Neuropathy Overview	Compare labs
Dejerine-Sottas disease MedGen: C0011195 OMIM: 145900 GeneReviews: Not available	Compare labs

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables molecular_function	ND No biological Data available more info
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed

Process	Evidence Code	Pubs
involved_in axon ensheathment	NAS Non-traceable Author Statement more info	PubMed
involved_in peripheral nervous system myelin maintenance	IBA Inferred from Biological aspect of Ancestor more info
involved_in regulation of RNA splicing	IBA Inferred from Biological aspect of Ancestor more info

Component	Evidence Code	Pubs
located_in anchoring junction	IEA Inferred from Electronic Annotation more info
is_active_in cytoplasm	IBA Inferred from Biological aspect of Ancestor more info
located_in cytoplasm	IDA Inferred from Direct Assay more info	PubMed
is_active_in nucleus	IBA Inferred from Biological aspect of Ancestor more info
located_in nucleus	IDA Inferred from Direct Assay more info	PubMed
located_in plasma membrane	TAS Traceable Author Statement more info

General protein information

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Preferred Names: periaxin

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.