SPG21

Spastic paraplegia 21 (autosomal recessive, Mast syndrome)
Identifiers
SymbolsSPG21 ; ACP33; GL010; MAST
External IDsOMIM: 608181 MGI: 106403 HomoloGene: 9603 GeneCards: SPG21 Gene
RNA expression pattern
More reference expression data
Orthologs
SpeciesHumanMouse
Entrez5132427965
EnsemblENSG00000090487ENSMUSG00000032388
UniProtQ9NZD8Q9CQC8
RefSeq (mRNA)NM_001127889NM_138584
RefSeq (protein)NP_001121361NP_613050
Location (UCSC)Chr 15:
65.26 – 65.28 Mb
Chr 9:
65.46 – 65.49 Mb
PubMed search

Maspardin is a protein that in humans is encoded by the SPG21 gene.[1][2][3]

The protein encoded by this gene was identified by a two-hybrid screen using CD4 as the bait. It binds to the hydrophobic C-terminal amino acids of CD4 which are involved in repression of T cell activation. The interaction with CD4 is mediated by the noncatalytic alpha/beta hydrolase fold domain of this protein. It is thus proposed that this gene product modulates the stimulatory activity of CD4.[3]

Interactions

SPG21 has been shown to interact with CD4.[1]

References

  1. 1.0 1.1 Zeitlmann L, Sirim P, Kremmer E, Kolanus W (Mar 2001). "Cloning of ACP33 as a novel intracellular ligand of CD4". J Biol Chem 276 (12): 9123–32. doi:10.1074/jbc.M009270200. PMID 11113139.
  2. Simpson MA, Cross H, Proukakis C, Pryde A, Hershberger R, Chatonnet A, Patton MA, Crosby AH (Oct 2003). "Maspardin Is Mutated in Mast Syndrome, a Complicated Form of Hereditary Spastic Paraplegia Associated with Dementia". Am J Hum Genet 73 (5): 1147–56. doi:10.1086/379522. PMC 1180493. PMID 14564668.
  3. 3.0 3.1 "Entrez Gene: SPG21 spastic paraplegia 21, maspardin (autosomal recessive, Mast syndrome)".

Further reading