Corynebacterium ammoniagenes ws_2211
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REPOSITORIES: ENA
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Project description:Corynebacterium ammoniagenes 9.6(T)(=DSM 20306(T)) Genome sequencing
| PRJNA242361 | ENA
Project description:Corynebacterium ammoniagenes T-723
| PRJDB12713 | ENA
Project description:Whole Genome sequencing and assembly of Corynebacterium ammoniagenes KCCM 40472
| PRJNA371386 | ENA
Project description:BACKGROUND: The prokaryotic FAD synthetase family - a group of bifunctional enzymes that catalyse riboflavin phosphorylation and FMN adenylylation within a single polypeptide chain- was analysed in terms of sequence and structure. RESULTS: Sequences of nearly 800 prokaryotic species were aligned. Those related with bifunctional FAD synthetase activities showed conservation of several consensus regions and highly conserved residues. A 3D model for the FAD synthetase from Corynebacterium ammoniagenes (CaFADS) was generated. This model confirms that the N-terminal and C-terminal domains are related to nucleotydyltransferases and riboflavin kinases, respectively. Models for the interaction of CaFADS with its substrates were also produced, allowing location of all the protein substrates in their putative binding pockets. These include two independent flavin binding sites for each CaFADS activity. CONCLUSION: For the first time, the putative presence of a flavin binding site for the adenylylation activity, independent from that related with the phosphorylation activity, is shown. Additionally, these models suggest the functional relevance of some residues putatively involved in the catalytic processes. Their relevant roles were analysed by site-directed mutagenesis. A role was confirmed for H28, H31, S164 and T165 in the stabilisation of the P groups and the adenine moiety of ATP and, the P of FMN for the adenylylation. Similarly, T208, N210 and E268 appear critical for accommodation of the P groups of ATP and the ribityl end of RF in the active site for the phosphorylation process. Finally, the C-terminal domain was shown to catalyse the phosphorylation process on its own, but no reaction at all was observed with the individually expressed N-terminal domain.
| S-EPMC2573891 | biostudies-literature
Project description:The pyrE gene, encoding orotate phosphoribosyltransferase (OPRTase), was cloned by nested PCR and colony blotting from Corynebacterium ammoniagenes ATCC 6872, which is widely used in nucleotide production. Sequence analysis shows that there is a lack of an important conserved lysine (Lys 73 in Salmonella enterica serovar Typhimurium OPRTase) in the C. ammoniagenes OPRTase. This lysine has been considered to contribute to the initiation of catalysis. The enzyme was overexpressed and purified from a recombinant Escherichia coli strain. The molecular mass of the purified OPRTase was determined to be 45.4 +/- 1.5 kDa by gel filtration. Since the molecular mass for the subunit of the enzyme was 21.3 +/- 0.6 kDa, the native enzyme exists as a dimer. Divalent magnesium was necessary for the activity of the enzyme and can be substituted for by Mn2+ and Co2+. The optimal pH for the forward (phosphoribosyl transfer) reaction is 10.5 to 11.5, which is higher than that of other reported OPRTases, and the optimal pH for the reverse (pyrophosphorolysis) reaction is 5.5 to 6.5. The Km values for the four substrates were determined to be 33 microM for orotate, 64 microM for 5-phosphoribosyl-1-pyrophosphate (PRPP), 45 microM for orotidine-5-phosphate (OMP), and 36 microM for pyrophosphate. The Km value for OMP is much larger than those of other organisms. These differences may be due to the absence of Lys 73, which is present in the active sites of other OPRTases and is known to interact with OMP and PRPP.
| S-EPMC2168641 | biostudies-literature
Project description:The data set comprises results from the whole cellular proteome, secreted proteins and proteins located on the bacterial surface of Corynebacterium pseudotuberculosis. The theroretical proteome was created from genome analysis and characterized using bioinformatical analysis.
2022-11-21 | PXD036354 | Pride
Project description:Corynebacterium timonense genome sequence
| PRJEB67 | ENA
Project description:Corynebacterium reamassiliensis genome sequence
| PRJEB646 | ENA
Project description:Strains: non-producing refernece strain pXMJ19 (CR099 pXMJ19; Goldbeck et al., 2021) and Pediocin-producer pxMJ19 ped (CR099 pXMJ19 Ptac pedACDCg, Goldbeck et al., 2021) Pediocin-producing and non-producing strains of Corynebacterium glutamicum were compared in a whole genome microarray analysis setup in order to identify potential strain optimization targets
2023-03-08 | GSE220713 | GEO