Cryo-electron microscopy structure of the di-domain core of polyketide synthase 13, essential for mycobacterial mycolic acid synthesis.

Mycobacteria are known for their complex cell wall, which comprises layers of peptidoglycan, polysaccharides and unusual fatty acids known as mycolic acids that form their unique outer membrane. Polyketide synthase 13 (Pks13) of , the bacterial organism causing tuberculosis, catalyses the last step of mycolic acid synthesis prior to export to and assembly in the cell wall. Due to its essentiality, Pks13 is a target for several novel anti-tubercular inhibitors, but its 3D structure and catalytic reaction mechanism remain to be fully elucidated.

Structural analysis of phosphoribosyltransferase-mediated cell wall precursor synthesis in Mycobacterium tuberculosis.

In Mycobacterium tuberculosis, Rv3806c is a membrane-bound phosphoribosyltransferase (PRTase) involved in cell wall precursor production. It catalyses pentosyl phosphate transfer from phosphoribosyl pyrophosphate to decaprenyl phosphate, to generate 5-phospho-β-ribosyl-1-phosphoryldecaprenol. Despite Rv3806c being an attractive drug target, structural and molecular mechanistic insight into this PRTase is lacking.

Placing the US Federal Investment in Religion, Spirituality, and Health Research in Context: A Systematic Review and Comparison with Social Support and Optimism Funding Levels.

Religion and spirituality (R/S) have been linked to better physical and mental health. The US government has funded several research studies that include a focus on R/S but the amount of support over the last several years appears to be declining. To better understand these funding trends for R/S and health research, we chose relevant comparisons from projects that include a focus on social support and optimism.