Protein Name:
Cathepsin B-like protease 3
|
UniprotKB/SwissProt ID: Q94K85 (Q94K85)
Gene Name:
CATHB3
Organism: Arabidopsis thaliana (Mouse-ear cress)
Function: Thiol protease that possesses high activity toward the cathepsin synthetic substrate Arg-Arg-7-amino-4-methylcoumarin (RR-AMC) and the papain substrate Gly-Arg-Arg-AMC (GRR-AMC). Can cleave the papain substrate Phe-Arg-AMC (FR-AMC) and the caspase-3 substrate Asp-Glu-Val-Asp-rhodamine 110 (DEVD-R110). Has no activity towards the caspase-6 substrate VEID-AMC, caspase-8 substrate IETD-AMC and caspase-1 substrate YVAD-AMC (PubMed:27058316). Plays a central role in plant programmed cell death (PCD). In addition to its role in protein degradation, may cleave and/or degrade a number of target proteins, activating signaling towards PCD. Contributes to the increase of caspase-3-like activity after UV-C-induced PCD and is required for abiotic stress-induced PCD (PubMed:27058316). Functions redundantly with CATHB1 and CATHB2 in basal defense and distinct forms of plant programmed cell death (PCD). Participates in the establishment of basal resistance against the bacterial pathogen Pseudomonase syringae pv. tomato DC3000. Required for full levels of PCD during resistance (R) gene-mediated hypersensitive response (HR). Involved in the regulation of senescence, a developmental form of PCD in plants (PubMed:19453434). May be involved in the degradation of seed storage proteins during seed germination (PubMed:24600022)
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization: Vacuole
|
|
|
Graphical Visualization of S-nitrosylation Sites:
|
|
The S-nitrosylation sites of Q94K85
|
| No. |
Position |
S-nitrosylated Peptide |
Secondary Structure of S-nitrosylated Peptide |
Solvent Accessibility of nitrosylated Site |
PubMed ID |
| 1 |
328 |
YFMIRRGTNE C GIEDEPVAGL |
|
|
|
|
