bacilliformis, R. niveus (accession number X56992) and R. microsporus
var. chinensis (accession number M63451) using BLAST algorithm. Since the fragment sequence showed high similarity to the selected proteinases, gene-specific primers were designed to perform 5′-RACE and 3′-RACE as well as for the amplification of a full-length cDNA of the aspartic proteinase gene from the first strand 5′-RACE-Ready cDNA NVP-HSP990 order of M. circinelloides by SMART™ RACE PCR Kit (Takara Europe-Clontech, Saint-Germain-en-Laye, France). Recombinant plasmids construction and codon usage adaptation A set of expression plasmids were constructed by cloning a partial MCAP, whole MCAP, or SyMCAP gene in frame with the alpha-factor (α-MF) secretion signal https://www.selleckchem.com/products/Thiazovivin.html and the C-terminal polyhistidine tag (6x His tag) into the multiple cloning site of pGAPZα-A, indicating that all MCAP products were cloned downstream of the glyceraldehyde-3-phosphate dehydrogenase (GAP) promoter . The whole MCAP
coding sequence (with intron sequence) was MAPK inhibitor amplified from M. circinelloides genomic DNA while the full-length cDNA (without intron) or partial sequence cDNA (without signal peptide and without intron) encoding MCAP was amplified from the 5′ of the first strand cDNA. The final concentrations of components for PCR of recombinant plasmids was: 1 × ThermoPol reaction buffer, 200 pmol μL-1 dNTPs, 2 pmol μL-1 of each primer, 1 ng μL-1 plasmid DNA, 0.04 units μL-1 Taq DNA polymerase. The first round of PCR amplification was carried out at 63°C for 5 cycles, and the second round of amplification was at 66°C for 25 cycles. To construct the plasmids pGAPZα+MCAP, pGAPZα+MCAP-2, pGAPZα+MCAP-SP1, pGAPZα+MCAP-3 and pGAPZα+MCAP-5, the PCR reactions were carried out using the following forward primers: APMC-F, APMC-Met-F,
APMC-EcoNaeI-F, XhoI-N-MCAP-F and MCAP-3 F, respectively. While the BCKDHB reverse primer APMC-NotI-R was used in all the PCR reactions (Table 2). The PCR products were purified as previously described and were digested using restriction enzymes for which specific sites had been previously added using primers. The digested PCR products were then ligated into the appropriate sites of the multiple cloning site of pGAPZα-A using T4 DNA ligase. Additionally, original MCAP was adapted to the optimal codon usage of P. pastoris and cloned in frame with DNA sequence for the N-terminal α- factor signal sequence, under the GAP promoter (performed by MWG Operon, Ebersberg, Germany). The final plasmid construct was designated as pGAPZα+SyMCAP-6. The ligated products were transformed into electrocompetent E. coli cells with further selection in LB-zeocin plates and expression was performed using P. pastoris X-33. Transformation of recombinant plasmids containing MCAP gene into P. pastoris To examine the expression of MCAP constructs in P.