| IED ID | IndEnz0002015836 |
| Enzyme Type ID | protease015836 |
| Protein Name |
Aspartic proteinase nepenthesin-2 EC 3.4.23.12 Nepenthesin-II |
| Gene Name | nep2 |
| Organism | Nepenthes gracilis (Slender pitcher plant) |
| Taxonomic Lineage | cellular organisms Eukaryota Viridiplantae Streptophyta Streptophytina Embryophyta Tracheophyta Euphyllophyta Spermatophyta Magnoliopsida Mesangiospermae eudicotyledons Gunneridae Pentapetalae Caryophyllales Nepenthaceae Nepenthes Nepenthes gracilis (Slender pitcher plant) |
| Enzyme Sequence | MASPLYSVVLGLAIVSAIVAPTSSTSRGTLLHHGQKRPQPGLRVDLEQVDSGKNLTKYELIKRAIKRGERRMRSINAMLQSSSGIETPVYAGDGEYLMNVAIGTPDSSFSAIMDTGSDLIWTQCEPCTQCFSQPTPIFNPQDSSSFSTLPCESQYCQDLPSETCNNNECQYTYGYGDGSTTQGYMATETFTFETSSVPNIAFGCGEDNQGFGQGNGAGLIGMGWGPLSLPSQLGVGQFSYCMTSYGSSSPSTLALGSAASGVPEGSPSTTLIHSSLNPTYYYITLQGITVGGDNLGIPSSTFQLQDDGTGGMIIDSGTTLTYLPQDAYNAVAQAFTDQINLPTVDESSSGLSTCFQQPSDGSTVQVPEISMQFDGGVLNLGEQNILISPAEGVICLAMGSSSQLGISIFGNIQQQETQVLYDLQNLAVSFVPTQCGAS |
| Enzyme Length | 438 |
| Uniprot Accession Number | Q766C2 |
| Absorption | |
| Active Site | ACT_SITE 114; /evidence=ECO:0000255|PROSITE-ProRule:PRU10094; ACT_SITE 315; /evidence=ECO:0000255|PROSITE-ProRule:PRU10094 |
| Activity Regulation | ACTIVITY REGULATION: Inhibited by pepstatin and by diazoacetyl-D,L-norleucine methyl ester (DAN) in the presence of Cu(2+) ions. {ECO:0000250}. |
| Binding Site | |
| Calcium Binding | |
| catalytic Activity | CATALYTIC ACTIVITY: Reaction=Similar to pepsin, but also cleaves on either side of Asp and at Lys-|-Arg.; EC=3.4.23.12; |
| DNA Binding | |
| EC Number | 3.4.23.12 |
| Enzyme Function | FUNCTION: Extracellular proteinase found in the pitcher fluid of carnivorous plants. Digest prey for nitrogen uptake. |
| Temperature Dependency | BIOPHYSICOCHEMICAL PROPERTIES: Temperature dependence: Optimum temperature is 45 degrees Celsius. Thermostable up to 50 degrees Celsius. Retains 44% of the original activity after incubation for 30 days at 50 degrees Celsius.; |
| PH Dependency | BIOPHYSICOCHEMICAL PROPERTIES: pH dependence: Optimum pH is 3.0. Retains 80% and 60% of the original activity after incubation for 30 days at pH 3.0 and pH 4.0 respectively. Unstable at pH higher than 5.0.; |
| Pathway | |
| nucleotide Binding | |
| Features | Active site (2); Chain (1); Disulfide bond (6); Domain (1); Glycosylation (1); Propeptide (1); Signal peptide (1) |
| Keywords | Aspartyl protease;Disulfide bond;Glycoprotein;Hydrolase;Protease;Secreted;Signal;Zymogen |
| Interact With | |
| Induction | |
| Subcellular Location | SUBCELLULAR LOCATION: Secreted {ECO:0000250}. |
| Modified Residue | |
| Post Translational Modification | |
| Signal Peptide | SIGNAL 1..24; /evidence=ECO:0000255 |
| Structure 3D | |
| Cross Reference PDB | - |
| Mapped Pubmed ID | - |
| Motif | |
| Gene Encoded By | |
| Mass | 46,174 |
| Kinetics | |
| Metal Binding | |
| Rhea ID | |
| Cross Reference Brenda | 3.4.23.12; |