Autophagin 4A

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Cysteine ​​protease ATG4A
other names

AUT-like 2 cysteine ​​endopeptidase, autophagin-2, autophagy-related cysteine ​​endopeptidase 2, autophagy-related protein 4 homologous A, hAPG4A

Existing structure data : PDB  2FUY , PDB  2P82

Properties of human protein
Mass / length primary structure 398 amino acids , 45,378 Da
Identifier
External IDs
Enzyme classification
EC, category 3.4.22.-
Orthologue (human)
Entrez 115201
Ensemble ENSG00000101844
UniProt Q8WYN0
Refseq (mRNA) NM_001321287.1
Refseq (protein) NP_001308216.1
PubMed search 115201

Autophagin 4A is an enzyme from the group of cysteine ​​proteases .

properties

Autophagin 4A is produced in many cell types , particularly in the skeletal muscles and the brain . It is involved in transport from the cytosol to vacuoles and in autophagy . Autophagin 4A cuts the C -terminal amino acid of autophagin 8 , which exposes a C -terminal glycine that binds phosphatidylethanolamine and subsequently to a lipid bilayer in the course of autophagy. The preferred substrate for autophagin 4A is GABARAPL2 , followed by MAP1LC3A and GABARAP . It is inhibited by N-ethyl maleimide. Autophagin 4A is redox- regulated; in a reducing environment it is activated, in an oxidizing environment it is inhibited.

Web links

Individual evidence

  1. ^ G. Mariño, JA Uría, XS Puente, V. Quesada, J. Bordallo, C. López-Otín: Human autophagins, a family of cysteine ​​proteinases potentially implicated in cell degradation by autophagy. In: The Journal of biological chemistry. Volume 278, Number 6, February 2003, pp. 3671-3678, doi : 10.1074 / jbc.M208247200 , PMID 12446702 .
  2. a b c d e f ATG4A - Cysteine ​​protease ATG4A - Homo sapiens (human) - ATG4A gene & protein. In: uniprot.org. March 15, 2005, accessed February 12, 2019 .