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Ciba Foundation Symposium - Isotopes in Biochemistry PDF

313 Pages·1951·16.951 MB·English
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BIOCHEMISTRY Reports of Conferences held at The Ciba Foundation and published by J. & A. Churchill La:- TOLEMIAS OF PREGNANCY Human and Veterinary LIVER DISEASE In the press STEROID HORMONES AND TUMOUR . . . GROWTH Ready end 1951 METABOLISM STEROIDS AND OF THEIR ESTIMATION Readyzend 195 1 Other volumes in preparation CIBA FOUNDATION CONFERENCE ON ISOTOPES I N BIOCHEMISTRY Consulting Editors J. N. DAVIDSON, M.D., D.&., F.R.S.E. L. H. GRAY, M.A.,Ph.D. s. A. McFARLANE, M.A., B.&., M.B., a.~. A. NEUBERGER, M.D., Ph.D., F.R.S. POPJAK, G. M.D.,D.&. c. RIMINGTON, M.A..P~.D. Editor for the Ciba Foundation G. E. W. WOLSTENHOLME, O.B.E., M.A.,M.B.,B.C~. With 79 Illustrations LONDON J. & A. CHURCHILL LTD. 104 GLOUCESTER PLACE, W.l 1951 ALL RIGHTSR ESERVED This book m y n ot be reproduced by any means, in whole w in part, with- out permission. Application with regard tn copyright should be addressed to the Publishers. Printed in &eat Britain FOREWORD SIR CHARLES HARINGTOFN.R,. S., M.A., Ph.D. THE advent of an entirely new tool of research is always something of an event in science. There can be few more striking illustrations of this than the story of the advances in knowledge that have been made with the aid of isotopes. The speed of development of this branch of research is due to the realization of some of the potentialities of the method even before separated isotopes were available, and to the eagerness with which such pioneers as Hevesy exploited the possibilities as soon as the discovery of induced radioactivity made the preparation of minimal amounts of radioactive isotopes possible; it was still further increased by the dramatic circumstances of the war-time work on nuclear fission, which brought the technique within the reach of laboratories in all branches of science. So far as biological science is concerned it was obvious at the outset that the tracer isotope technique would find its widest application in biochemistry; it offered indeed a method of attack on problems of intermediary metabolism and biosynthesis which had hitherto been unapproachable. It was unfortunate, though perhaps only natural, that the sudden general availability of isotopes for biochemical research should have led to some rather hasty experimenta- tion in which the more obvious problems were studied without deep thought. Such work, although it may provide quick answers to some questions of interest, is far from representing the best use of the new method. As time has passed, there has been more opportunity for reflection, and the result of this is apparent in the nature of the biochemical problems that are now being tackled with the V vi FOREWORD aid of isotopes as tracers. All of these problems require powers of biochemical interpretation ; many of them demand also new work in organic chemistry, both for the synthesis of the specifically labelled precursors whose metabolic fate it is desired to study, and for the stepwise degradation of the biosynthetic product, so that the process of its formation can be analysed. Again new methods of isolation of intermediary metabolites may have to be devised. Thus the full develop- ment of the isotope tecfinique in this field can only be achieved with the aid of concurrent advances in more con- ventional chemical and biochemical methods. The collection of papers in the present volume, contributed at an informal meeting by a number of leading workers, affords as good an illustration as could be wished of the stage of isotope research in biochemistry that has now been reached by the process of development that has been outlined. The Ciba Foundation are to be congratulated on performing a useful service in assembling a number of contributions which are not only of the greatest intrinsic interest but, in so far as they indicate the potentialities of isotope research in biochemistry, will serve as an inspiration for the further cultivation of this productive field of work. CONTENTS PAGE Foreword by SIR CHARLES HARINGTONP,~ D,F RS, D.ir ector, National Institute for Medical Research, London . v Opening Address A. S. MCFARLANE, MB, c.m , National Institute for MA, Medical Research, London . 1 part I-STEROIDS s. Chairman: A. MCFARLANE, MA, BSc, MB, ChB Editm: A. S. MCFARLANEM, A, BSC, MB, c h ~ Metabolism of l*C-labelled steroids C. P. LEBLON. DP,h D, Dept. of Anatomy, McGiIl University, Montreal . 4 Discussion R. J. BOSCOITc, . P. LEBLONDM, . MAROIS, a. HEIDEL- . . ia BERGER High cholesterol content of human spleen K. BERNHARDPh,y siologisch-chemischesI nstitut, University. of Bade 14 Discussion . . D. RI-NBERG, K. BERNHARDK,. BLOCH 16 The biosynthesis of radioactive cholesterol br surviving liver slices S. GURIN, PhD, and R. 0. BRADYM, D, Dept.. of Physiologica.l Chemistry, University of Pennsylvania 17 Discussion . . K. BLOCHW, . G. DAUBEND, . RITTENBERG 24 Studies with deuterium steroids T. F. GALLAGHEPhRD,, Sloan-Kettering Institute, New York 28 Discussion R. J. BOSCOTTT,. F. GALLAGHEDR. , RIITEN-BERGK, . . . BLOCH 38 vii viii CONTENTS PAGE Part 11-HBMOGLOBIN AND METABOLIC DERIVATIVES Chairman : SIR CHARLES HARINGTOPNh,D , FRS Editor : c. RIMINGTOPNh,D The biosynthetic mechanism of porphyrin formation n. SHEMINP, hD, and J. WITTENBERGPh,D . Dept. of Bio- . . chemistry, Columbia University, New York 41 Discussion A. N~UBERGEDR. ,S E,EMINH~. G. WOOD,K . BLOCH, . C.. RIMINGTODN., RITTENBERSG. , GURIN 64 t Studies mammaIian red cells on A. NEUBERGEMR,D ,p m, FRS, National Institute for Medical . Research, London 68 Discussion B. THORELLA, . NEUBERGERA,. WORMALLD,. RITTEN- BERGP, . L. MOLLISON . 82 Preliminary investigations for a study of energy utilized by the surviving fowl erythrocyte in hsem synthesis C. RIMINGTOPNh,D , Dept. of Chemical Pathology, University . . College Hospital, London 86 Discussion D. SHEMINC, . RIMINGTONH,. G. WOODH, . A. SLOVITER 89 Iron metabolism in pathological conditions A. VANNOTTMI, D,C linique MCdicale Universitaire, HBpital . . Cantonal, Lausanne 90 Discussion A. S. MCFARLANEA, . VANNOTTKI,. ATERMANJ, . E. FALK 94 Part 111-USE OF TRACERS IN THE STUDY OF BIOLOGICAL EFFECTS OF RADIATION Chairman: SIR JOHCNO CKROFT, FRS Editor : L. H. GRAYM, A, PhD The modification of X-ray sensitivity by chemicals A. HOLLAENDEPR~, DG, . E. STAPLETOaNn,d W. T. BURNEIT, JR.,D ivision of Biology, Oak Ridge National Laboratory, . . Tenn. 96 CONTENTS ix P' AGE Discussion L. H. GRAY, A. HOLLAENDEMR. , GORDONB,. E. HOLMES, H. A. SLOVITERA, . S. PARKESJ,. F. LOUTIT,L . F. . LAMERTON 109 Effect of X-rays on nucleic acid and protein synthesis in the Jensen rat sarcoma BARBARAE . HOLMESP,. h D, Dept. of Radiotherapeutics, University of Cambridge 114 Discussion R. J. BOSCOITB, . E. HOLMESG,. B. BROWN. 120 Radiation dose in tracer experiments involving auto- radiography S. R. PELC,P ~D,R adiotherapeutic Research Unit of the Medical Research Council, Hammersmith Hospital, London 122 Discussion L. F. LAMERTOSN. ,R . PEW,L . H. GRAY,A . HOLLAENDER, . B. E. HOLMES 136 Synthesis of deoxyribose nucleic acid and nuclear incor- poration of as shown by autoradiographs ALMAH OWARDPh, D, and s. R. PELCP,h D, Radiotherapeutic Research Unit of the Me.d ical Research Council, Hammer- smith Hospital, London 138 Discussion C. HEIDELBERGERA,. HOWARDC, . P. LEBLONDG, . POPJAK, S. R. PEW,G . B. BROWNB, . E. HOLMES,A . S. . MCFARLANE 148 Part IV-NUCLEIC ACIDS s. ChaiTWn : A. MCFARLANEM, A, B.Sc., MB, ChB Editor : J. N. DAVIDSOMND, , DSC, FRS.ED The biosynthesis of pyrimidines in uitro D. WRIGHTW ILSON,P ~D,D ept. of Physical Chemistry, . University of Pennsylvania 152 Discussion E. HAMMARSTKE. NA, TERMANA,. NEUBERGERD,. W. . WILSON 162 Studies with organic- and bio-synthetic nucleosides and nucleotides . G. B. BROWNP,h D, Sloan-Kettering Institute, New York 164 CONTENTS X PAGE Discussion . . C. HEIDELBERGEE. RH,A MMARSTGE.N B, . BROWN 171 The use of radiophosphorus in the study of the nucleic acids J. N. DAVIDSONM,D , D.S C, FRS.ED, Biochemistry Dept.,. University of Glasgow 175 Rate of synthesis and quantitative variations of the ribo- nucleic acid during the growth of a culture of Polytomella coeca R. JEENER,D ept. of Animal Physiology, Universit4 Libre . . de Bruxelles (presented by D. SZAFARZ) 184 Discussion G. B. BROWNJ,. N. DAVIDSOCN. ,P . LEBLONDD,. SZAFARZ, . . G. POPJ~K 188 Part V-PROTEINS AND AMINO-ACIDS Choirman : A. s. MCFARLANEM, A, BSC, MB, c h ~ EditOt : A. NEURERGEMRD, , PhD, FRS A method for the evaluation of the rate of protein synthesis in man D. RITTENBERGP,h D, D.e pt. of Biochemistry, Columbi.a University, New York 190 Discussion . . A. NEUBERGEDR., RITTENBERG, 201 Turnover rates during formation of proteins and poly- nucleotides in regenerating tissues E. HAMMARSTEMND, , D.e pt. of Biochemistry, Karolinska. Institutet, Stockholm 203 Discussion . . D. RITTENBERGE., HAMMARSTGE.N B, . BROWN 211 Synthesis of phenylalanine and tyrosine in yeast K. BLOCH,P hD, Dept. of Biochemistry, University o.f . Chicago. 213 Discussion R. BENTLEY, H. R. V. ARNSTEIN,E . E. POCHIND,.. RIITENBERGK, . BLOCHH, . A. KREBS,H . G. WOOD 224

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