The acyl carrier protein (ACP) is a cofactor of both fatty acid and polyketide biosynthesis machinery. It is one of the most abundant proteins in cells of E. coli. In both cases, the growing chain is bound to the ACP via a thioester derived from the distal thiol of a 4'-phosphopantetheine moiety. WebPhosphopantetheine, also known as 4'-phosphopantetheine, is a prosthetic group of several acyl carrier proteins including the acyl carrier proteins (ACP) of fatty acid synthases, ACPs of polyketide synthases, the peptidyl carrier proteins (PCP), as well as aryl carrier proteins (ArCP) of nonribosomal peptide synthetases (NRPS). [1]
Structural and binding studies of phosphopantetheine …
WebPhosphopantetheine transferases (PPTases) from E. coli (AcpS) and Bacillus subtilis (Sfp) have been used for the enzyme-mediated protein labeling system ( Fig. 5A ). 143 PPTases catalytically transfer 4′-phosphopantetheine from coenzyme A (CoA) to the serine residue of an acyl carrier protein (ACP) or peptidyl carrier protein (PCP). WebMar 1, 2002 · Furthermore, the helical structure of ACP resembles that of 14-3-3, which suggests that this region of the enzyme may be important in ACP recognition and binding. Therefore, it is likely that the AHL synthase binds acyl-ACP first, followed by a conformational rearrangement of the N-terminal domain and SAM binding in a bi-ter … dan simmons right wing
PDB 2kr5 structure summary ‹ Protein Data Bank in Europe (PDBe) …
WebPhosphopantetheine adenylyltransferase (PPAT, EC. 2.7.7.3) catalyzes an essential step in the reaction that transfers an adenylyl group from adenosine tri phosphate (ATP) to 4' … Phosphopantetheine, also known as 4'-phosphopantetheine, is a prosthetic group of several acyl carrier proteins including the acyl carrier proteins (ACP) of fatty acid synthases, ACPs of polyketide synthases, the peptidyl carrier proteins (PCP), as well as aryl carrier proteins (ArCP) of nonribosomal peptide synthetases (NRPS). It is also present in formyltetrahydrofolate dehydrogenase. WebJul 31, 2014 · (1) Movement of the ACP’s phosphopantetheine (Ppant) arm is thought to be coordinated with protein–protein interactions and significant rearrangement of the PKS enzyme assembly. (2-5) The dynamic structures of ACPs and their Ppant arms are difficult to track due to the flexibility of ACPs and ACPs’ transient interactions with catalytic … birthday poem from the dog