X-ray structure determination, a practical guideedited by G. H. Stout and L. H. Jensen

Albocycline: structure determination by x-ray crystallography.

The structure and absolute configuration of the macrolide antibiotic albocycline (1a) has been determined by X-ray crystallographic analysis on the derived p-bromobenzoate (1b). The absolute configuration of albocycline is 4R, 7S, 12S, 13R.

Crystallization of prostaglandin-H synthase for X-ray structure analysis.

Prostaglandin-H (PGH) synthase from ram seminal vesicles is a dimeric integral membrane protein of molecular weight 140 kDa. PGH synthase is a key enzyme in the biosynthesis of prostaglandins, has cyclooxygenase and peroxidase activities, and contains heme as a coenzyme. In the peroxidation step of its reaction. PGH synthase can use xenobiotics as co-substrates and can catalyze the metabolic ac...

In Vitro Flower Production in Some Species of Hyoscyamus (H. pusillus L., H. arachnoideus Pojark, and H. niger L.)

Various plant organ segments including segments from roots (root tip, and root collar), stems, leaves, and also seeds of several Hyoscyamus species (i.e. H. pusillus, H. arachnoideus, annual and biennial H. niger from two distinct geographical regions) were cultured on MS media with various growth regulator combinations, to assess the ability of flower production. Statistical assessments showed...

Estimating Process Capability Indices Using Univariate g and h Distribution

Process capability of a process is defined as inherent variability of a process which is running under chance cause of variation only. Process capability index is measuring the ability of a process to meet the product specification limit. Generally process capability is measured by 6 assuming that the product characteristic follows Normal distribution. In many practical situations the product ...

A . L . R . 
 Bergenhuyzen , 
 K . A . G . 
 Vermote , 
 H . 
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