peptide synthase; Provisional

peptide synthase; Provisional

peptide synthase; Provisional

The adenylation domain of nonribosomal peptide synthetases (NRPS). The adenylation (A) domain of NRPS recognizes a specific amino acid or hydroxy acid and activates it as an (amino) acyl adenylate by hydrolysis of ATP. The activated acyl moiety then forms a thioester bond to the enzyme-bound cofactor phosphopantetheine of a peptidyl carrier protein domain. NRPSs are large multifunctional enzymes which synthesize many therapeutically useful peptides in bacteria and fungi via a template-directed, nucleic acid independent nonribosomal mechanism. These natural products include antibiotics, immunosuppressants, plant and animal toxins, and enzyme inhibitors. NRPS has a distinct modular structure in which each module is responsible for the recognition, activation, and in some cases, modification of a single amino acid residue of the final peptide product. The modules can be subdivided into domains that catalyze specific biochemical reactions.

The adenylation domain of nonribosomal peptide synthetases (NRPS), including Streptoalloteichus tallysomycin biosynthesis genes. The adenylation (A) domain of NRPS recognizes a specific amino acid or hydroxy acid and activates it as an (amino) acyl adenylate by hydrolysis of ATP. The activated acyl moiety then forms a thioester to the enzyme-bound cofactor phosphopantetheine of a peptidyl carrier protein domain. NRPSs are large multifunctional enzymes which synthesize many therapeutically useful peptides in bacteria and fungi via a template-directed, nucleic acid independent nonribosomal mechanism. These natural products include antibiotics, immunosuppressants, plant and animal toxins, and enzyme inhibitors. NRPS has a distinct modular structure in which each module is responsible for the recognition, activation, and in some cases, modification of a single amino acid residue of the final peptide product. The modules can be subdivided into domains that catalyze specific biochemical reactions. This family includes the TLM biosynthetic gene cluster from Streptoalloteichus that consists of nine NRPS genes; the N-terminal module of TlmVI (NRPS-5) and the starter module of BlmVI (NRPS-5) are comprised of the acyl CoA ligase (AL) and acyl carrier protein (ACP)-like domains, which are thought to be involved in the biosynthesis of the beta-aminoalaninamide moiety.

Crystalstructure of dimodular LgrA in a condensation state [Brevibacillus parabrevis],6MFZ_B Crystal structure of dimodular LgrA in a condensation state [Brevibacillus parabrevis]

Crystalstructure of a 5-domain construct of LgrA in the substrate donation state [Brevibacillus parabrevis],6MG0_A Crystal structure of a 5-domain construct of LgrA in the thiolation state [Brevibacillus parabrevis],6MG0_B Crystal structure of a 5-domain construct of LgrA in the thiolation state [Brevibacillus parabrevis]

ChainA, BmdB, Bacillamide NRPS [Thermoactinomyces vulgaris]

ChainE, BmdB, bacillamide NRPS [Thermoactinomyces vulgaris]

Crystalstructure of an adenylation domain interrupted by a methylation domain (AMA4) from nonribosomal peptide synthetase TioS [Micromonospora sp. ML1]

Mycosubtilin synthase subunit C OS=Bacillus subtilis OX=1423 GN=mycC PE=3 SV=1

Linear gramicidin synthase subunit C OS=Brevibacillus parabrevis OX=54914 GN=lgrC PE=3 SV=1

Plipastatin synthase subunit D OS=Bacillus subtilis (strain 168) OX=224308 GN=ppsD PE=1 SV=2

Mycosubtilin synthase subunit B OS=Bacillus subtilis OX=1423 GN=mycB PE=3 SV=1

Linear gramicidin synthase subunit B OS=Brevibacillus parabrevis OX=54914 GN=lgrB PE=1 SV=1