Nonribosomal peptide synthase involved in the synthesis of nidulanin A and derived compounds (PubMed:23248299). Nidulanin A is a tetracyclopeptide with the sequence L-Phe-L-Kyn-L-Val-D-Val and an isoprene unit N-linked to the amino group of L-kynurenine (PubMed:23248299). The NRPS nlsA is responsible of the synthesis of the cyclopeptide and the prenyltransferase nptA adds the isoprene unit on the L-kynurenine residue of nidulanin A (PubMed:23248299). Further modifications lead to additional oxygenated related compounds (PubMed:23248299). Secondary metabolite biosynthesis. NRP synthetases are composed of discrete domains (adenylation (A), thiolation (T) or peptidyl carrier protein (PCP) and condensation (C) domains) which when grouped together are referred to as a single module (By similarity). Each module is responsible for the recognition (via the A domain) and incorporation of a single amino acid into the growing peptide product (By similarity). Thus, an NRP synthetase is generally composed of one or more modules and can terminate in a thioesterase domain (TE) that releases the newly synthesized peptide from the enzyme (By similarity). Occasionally, methyltransferase domains (responsible for amino acid methylation) are present within the NRP synthetase (By similarity). Impairs the biosynthesis of nidulanin A and related compounds (PubMed:23248299). Belongs to the NRP synthetase family.