Preliminary crystallographic analysis of sugar cane phosphoribosylpyrophosphate synthase.

نویسندگان

  • H B Napolitano
  • S A Sculaccio
  • O H Thiemann
  • G Oliva
چکیده

Phosphoribosylpyrophosphate synthases (PRS; EC 2.7.6.1) are enzymes that are of central importance in several metabolic pathways in all cells. The sugar cane PRS enzyme contains 328 amino acids with a molecular weight of 36.6 kDa and represents the first plant PRS to be crystallized, as well as the first phosphate-independent PRS to be studied in molecular detail. Sugar cane PRS was overexpressed in Escherichia coli, purified and crystallized using the hanging-drop vapour-diffusion method. Using X-ray diffraction experiments it was determined that the crystals belong to the orthorhombic system, with space group P2(1)2(1)2 and unit-cell parameters a = 213.2, b = 152.6, c = 149.3 A. The crystals diffract to a maximum resolution of 3.3 A and a complete data set to 3.5 A resolution was collected and analysed.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Measurement of Morphological Characteristics of Raw Cane Sugar Crystals Using Digital Image Analysis

Raw cane sugar is one of the most important product in the sugar industry and is the main raw material for the white sugar production. Morphological and physical properties of this product might influence the final white sugar. For instance, the behavior during centrifugation, transport and storage is related to the characteristics of these crystals. The object of this study was to determine th...

متن کامل

Sugar cane extract: A treatment for atherosclerosis disease?

Introduction: Sugar cane is a giant plant of grain products. Regarding the benefits of the use of medications with herbal origin, in the present study the impact of sugar cane extract on atherosclerosis and LDL-c and HDL-c in the serum of hypercholesterolemic rabbits was studied. Materials and methods: 24 adult male New Zealand rabbits race with an average weight of 2 kg were classified into...

متن کامل

Application of the OCRA Method in the sugar cane harvest and its repercussion on the workers' health. Preliminary study.

In Brazil the sugar ethanol industry has had strong growth in the last 10 years, sometimes due to the growing sugar exportation, sometimes due to the alcohol production for automobile fuel and for exportation. Despite the growing mechanization of the raw material harvest (sugar cane), the manual work still persists. The development of this article was based in the application of the OCRA Method...

متن کامل

Use of Response Surface Methodology Analysis for Xanthan Biopolymer Production by Xanthomonas campestris: Focus on Agitation Rate, Carbon Source, and Temperature

The current study is an attempt to contribute for efficient and cost-effective substrates for xanthan gum production. In this context, the sugar cane molasses wastes can be used as a cheap substrate for xanthan gum production. Xanthan biopolymer production by a novel Xanthomonas campestris strain IBRC-M 10644 was optimized with statistical approaches. Based on the results ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Acta crystallographica. Section F, Structural biology and crystallization communications

دوره 61 Pt 1  شماره 

صفحات  -

تاریخ انتشار 2005