{"product_id":"the-molecular-structure-of-amino-acids-determination-by-x-ray-diffraction-analysis-von-galina-v-gurskaya","title":"The Molecular Structure of Amino Acids","description":"\u003cp\u003eThe last decade has seen great progress in the study'of the structure and functions of living organisms at the molecular level; molecular biology has become a new branch of science [1-16]. One of the major problems of molecular biology concerns the structure of proteins. Some information about protein structure is provided by the electron microscope, by the ultracentrifuge, and by small-angle x-ray scattering; the last gives the fullest information about the atomic structure of protein molecules, but x-ray study of biological objects represents a difficult and laborious task. In this way the struc­ tures of three proteins have been established: hemoglobin, myoglobin [2, 8J, and lysozyme [10]; work has begun on ribonuclease, insulin, chymo­ trypSin, carboxypeptidase, and so on [14-16]. A knowledge of the structures of amino acids and peptides is of con­ siderable value in elucidating the structure and functions of proteins. Near­ ly all proteins consist largely of 22 principal amino acids, which are linked together in polypeptide chains. The peptide link always arises between an a-amino group and the carboxyl group in the next amino acid residue, so all polypeptide chains have the same backbone, to which are attached dif­ ferent radicals R (Fig. 1).\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9781468415681\"\u003e\u003ch3\u003eDetermination by X-Ray Diffraction Analysis\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9781468415681","offer_id":39417053118557,"sku":"9781468415681","price":53.49,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/b79d18c0-7ec6-46f7-be52-40f368139520.jpg?v=1775796069","url":"https:\/\/shop.autorenwelt.de\/products\/the-molecular-structure-of-amino-acids-determination-by-x-ray-diffraction-analysis-von-galina-v-gurskaya","provider":"Autorenwelt Shop","version":"1.0","type":"link"}