Detail Information for IndEnz0002009291
IED ID IndEnz0002009291
Enzyme Type ID protease009291
Protein Name Papaya proteinase 4
EC 3.4.22.25
Glycyl endopeptidase
Papaya peptidase B
Papaya proteinase IV
PPIV
Gene Name
Organism Carica papaya (Papaya)
Taxonomic Lineage cellular organisms Eukaryota Viridiplantae Streptophyta Streptophytina Embryophyta Tracheophyta Euphyllophyta Spermatophyta Magnoliopsida Mesangiospermae eudicotyledons Gunneridae Pentapetalae rosids malvids Brassicales Caricaceae Carica Carica papaya (Papaya)
Enzyme Sequence MAIICSFSKLLFVAICLFGHMSLSYCDFSIVGYSQDDLTSTERLIQLFNSWMLKHNKNYKNVDEKLYRFEIFKDNLKYIDERNKMINGYWLGLNEFSDLSNDEFKEKYVGSLPEDYTNQPYDEEFVNEDIVDLPESVDWRAKGAVTPVKHQGYCESCWAFSTVATVEGINKIKTGNLVELSEQELVDCDKQSYGCNRGYQSTSLQYVAQNGIHLRAKYPYIAKQQTCRANQVGGPKVKTNGVGRVQSNNEGSLLNAIAHQPVSVVVESAGRDFQNYKGGIFEGSCGTKVDHAVTAVGYGKSGGKGYILIKNSWGPGWGENGYIRIRRASGNSPGVCGVYRSSYYPIKN
Enzyme Length 348
Uniprot Accession Number P05994
Absorption
Active Site ACT_SITE 157; /evidence=ECO:0000250; ACT_SITE 291; /evidence=ECO:0000250; ACT_SITE 311; /evidence=ECO:0000250
Activity Regulation ACTIVITY REGULATION: Not inhibited by cystatin.
Binding Site
Calcium Binding
catalytic Activity CATALYTIC ACTIVITY: Reaction=Preferential cleavage: Gly-|-Xaa, in proteins and in small molecule substrates.; EC=3.4.22.25;
DNA Binding
EC Number 3.4.22.25
Enzyme Function FUNCTION: Thiol protease with a substrate specificity very different from the other thiol proteases.
Temperature Dependency
PH Dependency
Pathway
nucleotide Binding
Features Active site (3); Beta strand (9); Chain (1); Disulfide bond (3); Helix (7); Propeptide (1); Sequence conflict (1); Signal peptide (1); Turn (2)
Keywords 3D-structure;Direct protein sequencing;Disulfide bond;Hydrolase;Protease;Signal;Thiol protease;Zymogen
Interact With
Induction
Subcellular Location
Modified Residue
Post Translational Modification
Signal Peptide SIGNAL 1..18; /evidence=ECO:0000255
Structure 3D X-ray crystallography (1)
Cross Reference PDB 1GEC;
Mapped Pubmed ID -
Motif
Gene Encoded By
Mass 39,024
Kinetics
Metal Binding
Rhea ID
Cross Reference Brenda 3.4.22.25;