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Full-Text Articles in Biochemistry
Myxobacteria Versus Sponge-Derived Alkaloids: The Bengamide Family Identified As Potent Immune Modulating Agents By Scrutiny Of Lc-Ms/Elsd Libraries., Tyler A. Johnson, Johann Sohn, Yvette M Vaske, Kimberly N White, Tanya L Cohen, Helene C Vervoort, Karen Tenney, Frederick A Valeriote, Leonard F Bjeldanes, Phillip Crews
Myxobacteria Versus Sponge-Derived Alkaloids: The Bengamide Family Identified As Potent Immune Modulating Agents By Scrutiny Of Lc-Ms/Elsd Libraries., Tyler A. Johnson, Johann Sohn, Yvette M Vaske, Kimberly N White, Tanya L Cohen, Helene C Vervoort, Karen Tenney, Frederick A Valeriote, Leonard F Bjeldanes, Phillip Crews
Tyler Johnson
A nuclear factor-κB (NF-κB) luciferase assay has been employed to identify the bengamides, previously known for their anti-tumor activity, as a new class of immune modulators. A unique element of this study was that the bengamide analogs were isolated from two disparate sources, Myxococcus virescens (bacterium) and Jaspis coriacea (sponge). Comparative LC-MS/ELSD and NMR analysis facilitated the isolation of M. viriscens derived samples of bengamide E (8) and two congeners, bengamide E' (13) and F' (14) each isolated as an insperable mixture of diastereomers. Additional compounds drawn from the UC, Santa Cruz repository allowed expansion of the structure activity relationship …
The Role Of Protein Kinases Rog1 And Srf6 In The Wak Stress Response Pathway, Jaepil Eric Yoon
The Role Of Protein Kinases Rog1 And Srf6 In The Wak Stress Response Pathway, Jaepil Eric Yoon
Jaepil Eric Yoon
The wall-associated kinases (WAKs) are receptor kinases that bind cell wall pectin to activate expansion and stress response pathways in Arabidopsis thaliana. When bound to pectin polymers, WAKs initiate expansion by inducing the expression of vacuolar invertases that increase cellular turgor pressure, which pushes out against the cell wall. WAKs also bind pathogen or wounding induced pectin fragments called oligogalacturonic acids (OGs). When bound to OGs, WAKs induce a stress response, which leads to the activation of MAP kinases, MPK3 and MPK6. Phosphoproteomics and mass spectrometry identified receptor kinase SRF6, cytoplasmic kinase ROG1, and nuclear DNA binding protein REM2 to …