Protein
Xyloglucan-specific endo-beta-1,4-glucanase 1
Organism
Phytophthora sojae (strain P6497)
Function
Glycoside hydrolase that exhibits xyloglucanase activity (PubMed:26163574). Acts as an important virulence factor during P.sojae infection but also acts as a pathogen-associated molecular pattern (PAMP) in soybean and solanaceous species, where it can trigger defense responses including cell death. XEG1-induced cell death can be suppressed by P.sojae RxLR effectors. The PAMP activity is independent of its xyloglucanase activity (PubMed:26163574). XEG1 induces plant defense responses in a RLP kinase Serk3/Bak1-dependent manner in Nicotiana benthamiana. Moreover, the perception of XEG1 occurs independently of the perception of ethylene-inducing xylanase Eix2 in Tomato (PubMed:26163574). With truncated paralog XLP1, is required to elevate apoplastic sugar during P.sojae infection (PubMed:28082413).
Similarity
Belongs to the glycosyl hydrolase 12 (cellulase H) family.
Sequence
MKGFFAGVVAAATLAVASAGDYCGQWDWAKSTNYIVYNNLWNKNAAASGSQCTGVDKISGSTIAWHTSYTWTGGAATEVKSYSNAALVFSKKQIKNIKSIPTKMKYSYSHSSGTFVADVSYDLFTSSTASGSNEYEIMIWLAAYGGAGPISSTGKAIATVTIGSNSFKLYKGPNGSTTVFSFVATKTITNFSADLQKFLSYLTKNQGLPSSQYLITLEAGTEPFVGTNAKMTVSSFSAAVN