scholarly journals Analysis of the Interactions Taking Place in the Recognition Site of a Bimetallic Mg(II)−Zn(II) Enzyme, Isopentenyl Diphosphate Isomerase. A Parallel Quantum-Chemical and Polarizable Molecular Mechanics Study

2010 ◽  
Vol 114 (14) ◽  
pp. 4884-4895 ◽  
Author(s):  
Nohad Gresh ◽  
Nicole Audiffren ◽  
Jean-Philip Piquemal ◽  
Jerome de Ruyck ◽  
Marie Ledecq ◽  
...  
Keyword(s):  
Molecular Mechanics ◽  
Quantum Chemical ◽  
Recognition Site ◽  
Isopentenyl Diphosphate ◽  
Isopentenyl Diphosphate Isomerase

scholarly journals Biosynthesis of pinene in purple non-sulfur photosynthetic bacteria

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Xiaomin Wu ◽  
Guang Ma ◽  
Chuanyang Liu ◽  
Xin-yuan Qiu ◽  
Lu Min ◽  
...  
Keyword(s):  
Fusion Protein ◽  
Heterologous Expression ◽  
Rhodobacter Sphaeroides ◽  
Photosynthetic Bacteria ◽  
Fine Chemicals ◽  
Isopentenyl Diphosphate ◽  
Isopentenyl Diphosphate Isomerase ◽  
Geranyl Diphosphate ◽  
Ribosome Binding ◽  
Geranyl Diphosphate Synthase

Abstract Background Pinene is a monoterpene, that is used in the manufacture of fragrances, insecticide, fine chemicals, and renewable fuels. Production of pinene by metabolic-engineered microorganisms is a sustainable method. Purple non-sulfur photosynthetic bacteria belong to photosynthetic chassis that are widely used to synthesize natural chemicals. To date, researches on the synthesis of pinene by purple non-sulfur photosynthetic bacteria has not been reported, leaving the potential of purple non-sulfur photosynthetic bacteria synthesizing pinene unexplored. Results Rhodobacter sphaeroides strain was applied as a model and engineered to express the fusion protein of heterologous geranyl diphosphate synthase (GPPS) and pinene synthase (PS), hence achieving pinene production. The reaction condition of pinene production was optimized and 97.51 μg/L of pinene was yielded. Then, genes of 1-deoxy-d-xylulose 5-phosphate synthase, 1-deoxy-d-xylulose 5-phosphate reductoisomerase and isopentenyl diphosphate isomerase were overexpressed, and the ribosome binding site of GPPS-PS mRNA was optimized, improving pinene titer to 539.84 μg/L. Conclusions In this paper, through heterologous expression of GPPS-PS, pinene was successfully produced in R. sphaeroides, and pinene production was greatly improved by optimizing the expression of key enzymes. This is the first report on pinene produce by purple non-sulfur photosynthetic bacteria, which expands the availability of photosynthetic chassis for pinene production.

scholarly journals Crystal Structure of Type 2 Isopentenyl Diphosphate Isomerase fromThermus thermophilusin Complex with Inorganic Pyrophosphate†

Biochemistry ◽  
2008 ◽  
Vol 47 (35) ◽  
pp. 9051-9053 ◽  
Author(s):  
Jérôme de Ruyck ◽  
Jenny Pouyez ◽  
Steven C. Rothman ◽  
Dale Poulter ◽  
Johan Wouters
Keyword(s):  
Crystal Structure ◽  
Isopentenyl Diphosphate ◽  
Inorganic Pyrophosphate ◽  
Isopentenyl Diphosphate Isomerase

scholarly journals Improved Squalene Production via Modulation of the Methylerythritol 4-Phosphate Pathway and Heterologous Expression of Genes from Streptomyces peucetius ATCC 27952 in Escherichia coli

2009 ◽  
Vol 75 (22) ◽  
pp. 7291-7293 ◽  
Author(s):  
Gopal Prasad Ghimire ◽  
Hei Chan Lee ◽  
Jae Kyung Sohng
Keyword(s):  
Escherichia Coli ◽  
Heterologous Expression ◽  
Farnesyl Diphosphate ◽  
Farnesyl Diphosphate Synthase ◽  
Isopentenyl Diphosphate ◽  
Isopentenyl Diphosphate Isomerase ◽  
Streptomyces Peucetius ◽  
E Coli ◽  
Expression Of Genes ◽  
Genes Encoding

ABSTRACT Putative hopanoid genes from Streptomyces peucetius were introduced into Escherichia coli to improve the production of squalene, an industrially important compound. High expression of hopA and hopB (encoding squalene/phytoene synthases) together with hopD (encoding farnesyl diphosphate synthase) yielded 4.1 mg/liter of squalene. This level was elevated to 11.8 mg/liter when there was also increased expression of dxs and idi, E. coli genes encoding 1-deoxy-d-xylulose 5-phosphate synthase and isopentenyl diphosphate isomerase.

Quantum Chemical and Molecular Mechanics Studies on the Binding of Stereoisomers of the Oligopeptide Antibiotics Amidinomycin and Noformycin to the Minor Groove of B-DNA

1993 ◽  
Vol 10 (4) ◽  
pp. 709-726 ◽  
Author(s):  
Anne-Marie Sapse ◽  
Waldo Feng ◽  
Lillian Fugler-Domenico ◽  
Shahrzad Kabir ◽  
Tomi Joseph ◽  
...  
Keyword(s):  
Molecular Mechanics ◽  
Quantum Chemical ◽  
Minor Groove
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