Cysteine protease required for autophagy, which is able to cleave the C-terminal part of ATG8 that may be subsequently converted to a smaller form, with a revealed C-terminal glycine. The C-terminal glycine of ATG8 is conjugated to phosphatidylethanolamine by an amide bond. This conjugated form has the capacity for the binding to autophagosomes. 478 Cysteine protease ATG4B APG4B Autophagy-related protein 4 homolog B OsAtg4 OsI_017321 MTSLPDRGVSSSSSDPLCEGNIAPCSSSSEQKEDCSLKQSKTSILSCVFNSPFNIFEAHQDSSANKSPKSSSGSYDWLRVLRRIVCSGSMWRFLGTSKVLTSSDVWFLGKCYKLSSEESSSDSDSESGHATFLEDFSSRIWITYRRGFDAISDSKYTSDVNWGCMVRSSQMLVAQALIFHHLGRSWRRPSEKPYNPEYIGILHMFGDSEACAFSIHNLLQAGNSYGLAAGSWVGPYAMCRAWQTLVRTNREQHEVVDGNESFPMALYVVSGDEDGERGGAPVVCIDVAAQLCCDFNKGQSTWSPILLLVPLVLGLDKINPRYIPLLKETFTFPQSLGILGGKPGTSTYIAGVQDDRALYLDPHEVQMAVDIAADNIEADTSSYHCSTVRDLALDLIDPSLAIGFYCRDKDDFDDFCSRATELVDKANGAPLFTVVQSVQPSKQMYNQDDVLGISGDGNINVEDLDASGETGEEEWQIL APG4 ATG4B ATG4B_ORYSI