Systemin receptor
WebMay 21, 2005 · The systemin receptor (SR160)(Scheer and Ryan 2002), the PSK receptor (Matsubayashi et al. 2002) and the CLV3 receptor (CLV1) (Clark et al. 1997) are members of the LRR receptor kinase family, while the SCR receptor (SRK) (Kachroo et al. 2002) is a cysteine-rich receptor kinase. The CLV1 and SRK genes were identified by map based … WebOct 1, 2002 · SR160 is almost identical to BRI1, a brassinosteroid receptor identified in Lycopersicon esculentum. Competition experiments indicate that brassinosteroid and systemin are probably perceived by different regions of the receptor. Catalytic activity ATP + L-seryl- [protein] = ADP + H+ + O-phospho-L-seryl- [protein]
Systemin receptor
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WebAug 1, 2000 · Ala-17-systemin had also been shown to antagonize systemin binding to its receptor (5, 6). Thus, the activation of MBP kinase by systemin is likely to be mediated through the systemin receptor. Fig. 5A shows that a 48-kDa MBP kinase is activated not only by systemin but also by chitosan and pmg elicitor in suspension-cultured cells of L ... Exceedingly small amounts of tomato systemin are active, femto-molar concentrations of the peptide are sufficient to elicit a response at the whole plant level, making it one of the most potent gene activators identified. A receptor for tomato systemin was identified as a 160KDa leucine-rich repeat receptor like kinase (LRR-RLK), SR160. After being isolated it was found that was very similar in structure to BRI1 from A. thaliana, the receptor that brassinolides bind to on the cell membrane. …
WebSystemin is the only peptide possessing hormone-like activity in plants. It was discovered in Rayn's laboratory in 1992, and its structure was identified in the following year. Before the discovery of systemin, the only known plant molecules involved in cell communication were relatively low molecular weight, non-protein compounds. http://research.cas.sc.edu/stratmann/
WebFeb 14, 2006 · The first systemin receptor to be characterized was discovered in tomato and is predicted to be a leucine-rich repeat transmembrane protein kinase structurally similar to the BRI1 receptor kinase in Arabidopsis ( 15 ). The CEV1 gene encodes a cellulose synthase that can act as a negative regulator of the JA pathway ( 16 ). WebAug 1, 1999 · The data indicate that the SR-160 protein is a biologically relevant systemin receptor in these cells. Single subunit receptors of this size have been characterized for animal epidermal growth factors (Adamson and Rees, 1981; Cadena et al., 1994) but not for plant hormones. The evidence at hand supports a role for the systemin binding protein ...
WebSystemin and its precursor protein, prosystemin, play an essential role in the systemic wound response pathway of tomato plants. We report here the isolation from tomato of a novel prosystemin cDNA (prosysB) that differs from the reported cDNA sequence (prosysA) by the addition of a CAG trinucleotide. Inspection of the prosystemin genomic sequence, …
WebA large number of serotonin (5-HT) receptors have been identified. Only one group of serotonin receptors, called the 5-HT 3 receptors, are ligand-gated ion channels (see Figure 7.11C); the others are metabotropic receptors … scratchpad\\u0027s 4hWebAug 1, 2003 · Plants use a gene-for-gene system for pathogen recognition, as has been demonstrated for the rice blight resistance RLK, Xa21 [12]. Plants also appear to have an innate immune system, which utilizes receptors that share some structural similarity to the. Systemin. Tomato and potato plants respond to insect attack by releasing systemin. scratchpad\\u0027s 4bWebSep 2, 2014 · The systemin receptor was initially identified as the tomato homolog of the brassinosteroid receptor BRI1, but genetic evidence … scratchpad\\u0027s 4c