Proteolipid protein 1

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Proteolipid protein 1
Protein PLP1 PDB 2XPG.png
Rendering based on PDB 2XPG.
Available structures
PDB Ortholog search: PDBe, RCSB
Symbols PLP1 ; GPM6C; HLD1; MMPL; PLP; PLP/DM20; PMD; SPG2
External IDs OMIM300401 MGI97623 HomoloGene448 GeneCards: PLP1 Gene
RNA expression pattern
PBB GE PLP1 210198 s at tn.png
More reference expression data
Species Human Mouse
Entrez 5354 18823
Ensembl ENSG00000123560 ENSMUSG00000031425
UniProt P60201 P60202
RefSeq (mRNA) NM_000533 NM_001290561
RefSeq (protein) NP_000524 NP_001277490
Location (UCSC) Chr X:
103.77 – 103.79 Mb
Chr X:
136.82 – 136.84 Mb
PubMed search [1] [2]

Proteolipid protein 1 is a protein associated with Pelizaeus-Merzbacher disease. It is a 4 transmembrane domain protein which is proposed to bind other copies of itself on the extracellular side of the membrane. In a myelin sheath, as the layers of myelin wraps come together, PLP will bind itself and tightly hold the cellular membranes together.

This gene encodes a transmembrane proteolipid protein that is the predominant myelin protein present in the central nervous system (CNS). The encoded protein functions in myelination. This protein may play a role in the compaction, stabilization, and maintenance of myelin sheaths, as well as in oligodendrocyte development and axonal survival. Mutations associated with this gene cause X-linked Pelizaeus-Merzbacher disease and spastic paraplegia type 2. Two transcript variants encoding distinct isoforms have been identified for this gene.[1]

In melanocytic cells PLP1 gene expression may be regulated by MITF.[2]


Proteolipid protein 1 has been shown to interact with Myelin basic protein.[3][4]

See also[edit]


  1. ^ "Entrez Gene: PLP1 proteolipid protein 1 (Pelizaeus-Merzbacher disease, spastic paraplegia 2, uncomplicated)". 
  2. ^ Hoek KS, Schlegel NC, Eichhoff OM, et al. (2008). "Novel MITF targets identified using a two-step DNA microarray strategy". Pigment Cell Melanoma Res. 21 (6): 665–76. doi:10.1111/j.1755-148X.2008.00505.x. PMID 19067971. 
  3. ^ Wood, D D; Vella G J; Moscarello M A (Oct 1984). "Interaction between human myelin basic protein and lipophilin". Neurochem. Res. (UNITED STATES) 9 (10): 1523–31. doi:10.1007/BF00964678. ISSN 0364-3190. PMID 6083474. 
  4. ^ Edwards, A M; Ross N W; Ulmer J B; Braun P E (Jan 1989). "Interaction of myelin basic protein and proteolipid protein". J. Neurosci. Res. (UNITED STATES) 22 (1): 97–102. doi:10.1002/jnr.490220113. ISSN 0360-4012. PMID 2467009. 

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