Protein Info for Psyr_0796 in Pseudomonas syringae pv. syringae B728a
Annotation: type 4 prepilin peptidase 1, Aspartic peptidase, MEROPS family A24A
These analyses and tools can help you predict a protein's function, but be skeptical. For enzymes, over 10% of annotations from KEGG or SEED are probably incorrect. For other types of proteins, the error rates may be much higher. MetaCyc and Swiss-Prot have low error rates, but the best hits in these databases are often quite distant, so this protein's function may not be the same. TIGRFam has low error rates. Finally, many experimentally-characterized proteins are not in any of these databases. To find relevant papers, use PaperBLAST.
Protein Families and Features
Best Hits
Swiss-Prot: 78% identical to LEP4_PSEAE: Type 4 prepilin-like proteins leader peptide-processing enzyme (pilD) from Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)
KEGG orthology group: K02654, leader peptidase (prepilin peptidase) / N-methyltransferase [EC: 2.1.1.- 3.4.23.43] (inferred from 100% identity to psb:Psyr_0796)MetaCyc: 78% identical to prepilin leader peptidase/N-methyltransferase (Pseudomonas aeruginosa)
Prepilin peptidase. [EC: 3.4.23.43]; 2.1.1.- [EC: 3.4.23.43]
Predicted SEED Role
"Leader peptidase (Prepilin peptidase) (EC 3.4.23.43) / N-methyltransferase (EC 2.1.1.-)" in subsystem Type IV pilus (EC 2.1.1.-, EC 3.4.23.43)
KEGG Metabolic Maps
- Alkaloid biosynthesis I
- Anthocyanin biosynthesis
- Benzoxazinone biosynthesis
- Biosynthesis of alkaloids derived from shikimate pathway
- Carotenoid biosynthesis - General
- Flavonoid biosynthesis
- Histidine metabolism
- Insect hormone biosynthesis
- Naphthalene and anthracene degradation
- Phenylpropanoid biosynthesis
- Porphyrin and chlorophyll metabolism
- Tryptophan metabolism
- Tyrosine metabolism
- Ubiquinone and menaquinone biosynthesis
Isozymes
Compare fitness of predicted isozymes for: 2.1.1.-, 3.4.23.43
Use Curated BLAST to search for 2.1.1.- or 3.4.23.43
Sequence Analysis Tools
PaperBLAST (search for papers about homologs of this protein)
Search CDD (the Conserved Domains Database, which includes COG and superfam)
Compare to protein structures
Predict protein localization: PSORTb (Gram-negative bacteria)
Predict transmembrane helices and signal peptides: Phobius
Check the current SEED with FIGfam search
Find homologs in fast.genomics or the ENIGMA genome browser
See Q4ZYB8 at UniProt or InterPro
Protein Sequence (290 amino acids)
>Psyr_0796 type 4 prepilin peptidase 1, Aspartic peptidase, MEROPS family A24A (Pseudomonas syringae pv. syringae B728a) MPLLDLLASSPLAFVTTCCILGLIIGSFLNVIVYRLPIMMERDWKAQSRELLGLPAEPDQ PVFNLNRPRSSCPHCAHKIRPWENLPVISYLLLRGKCSQCKAPISKRYPLVELTCAVLSA YVAWHFGFGWQATAMLVLGWGLLAMSLIDADHQLLPDSLVLPLLWLGLIVNAFGLFTSLN DALWGAVAGYLALWSVFWLFKLVTGKEGMGYGDFKLLAMLGAWGGWQVLPLTILLSSLVG AVLGVIMMRVRRVESGTPIPFGPYLAIAGWIALLWGGQITDSYMQFAGFR