| Structural highlights
Function
XEG1_PHYSP 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).[1] [2]
References
- ↑ Ma Z, Song T, Zhu L, Ye W, Wang Y, Shao Y, Dong S, Zhang Z, Dou D, Zheng X, Tyler BM, Wang Y. A Phytophthora sojae Glycoside Hydrolase 12 Protein Is a Major Virulence Factor during Soybean Infection and Is Recognized as a PAMP. Plant Cell. 2015 Jul;27(7):2057-72. PMID:26163574 doi:10.1105/tpc.15.00390
- ↑ Ma Z, Zhu L, Song T, Wang Y, Zhang Q, Xia Y, Qiu M, Lin Y, Li H, Kong L, Fang Y, Ye W, Wang Y, Dong S, Zheng X, Tyler BM, Wang Y. A paralogous decoy protects Phytophthora sojae apoplastic effector PsXEG1 from a host inhibitor. Science. 2017 Feb 17;355(6326):710-714. PMID:28082413 doi:10.1126/science.aai7919
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