88 Advances in Biochemical Engineering/Biotechnology Series Editor: T.Scheper Editorial Board: W.Babel · I.Endo · S.-O.Enfors · A.Fiechter · M.Hoare · W.-S.Hu B.Mattiasson · J.Nielsen · H.Sahm · K.Schügerl · G.Stephanopoulos U.von Stockar · G.T.Tsao · C.Wandrey · J.-J.Zhong Advances in Biochemical Engineering/Biotechnology Series Editor:T.Scheper Recently Published and Forthcoming Volumes Recent Progress ofBiochemical Biomethanation I and Biomedical Engineering in Japan II Volume Editor:Ahring,B.K. Volume Editor:Kobayashi,T. Vol.81,2003 Vol.91,2004 Process Integration in Biochemical Recent Progress ofBiochemical Engineering and Biomedical Engineering in Japan I Volume Editors:von Stockar,U., Volume Editor:Kobayashi,T. van der Wielen,L.A.M. Vol.90,2004 Vol.80,2003 Physiological Stress Responses Microbial Production ofl-Amino Acids in Bioprocesses Volume Editors:Faurie,R.,Thommel J. Volume Editor:Enfors,S.-O. 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Vol.82,2003 Molecular Biotechnology of Fungal bb-Lactam Antibiotics and Related Peptide Synthetases Volume Editor: A.A.Brakhage With contributions by Q.Al-Abdallah · M.S.Barber · M.A.van den Berg · R.A.L.Bovenberg · A.A.Brakhage · J.Casqueiro · H.von Döhren · A.J.M.Driessen · A.Eliasson · M.E.Evers · A.Gehrke · U.Giesecke · N.Gunnarsson · B.Hoff· U.Kück · J.F.Martín · W.Minas · J.Nielsen · H.Plattner · A.Reichert · E.K.Schmitt · P.Spröte · H.Trip · A.Tüncher · R.V.Ullán 2 3 Advances in Biochemical Engineering/Biotechnologyreviews actual trends in modern biotechnology.Its aim is to cover all aspects of this interdisciplinary technology where knowledge,methods and expertise are required for chemistry,biochemistry,micro-biology,genetics,chemical engineering and computer science. Special volumes are dedicated to selected topics which focus on new biotechnological products and new processes for their synthesis and purification.They give the state-of-the-art ofa topic in a comprehensive way thus being a valuable source for the next 3–5 years.It also discusses new discoveries and applications. In general,special volumes are edited by well known guest editors.The series editor and publisher will however always be pleased to receive suggestions and supplementary information.Manuscripts are accepted in English. In references Advances in Biochemical Engineering/Biotechnology is abbreviated as Adv Biochem Engin/Biotechnolas a journal. 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Typesetting:Fotosatz-Service Köhler GmbH,Würzburg Cover:KünkelLopka GmbH,Heidelberg;design & production GmbH,Heidelberg Printed on acid-free paper 02/3020mh – 5 4 3 2 1 0 Series Editor Professor Dr.T.Scheper Institute ofTechnical Chemistry University ofHannover Callinstraße 3 30167 Hannover,Germany [email protected] Volume Editor Professor Dr.Axel A.Brakhage Institute ofMicrobiology University ofHannover Schneiderberg 50 30167 Hannover,Germany [email protected] Editorial Board Prof.Dr.W.Babel Prof.Dr.I.Endo Section ofEnvironmental Microbiology Faculty ofAgriculture Leipzig-Halle GmbH Dept.ofBioproductive Science Permoserstraße 15 Laboratory ofApplied Microbiology 04318 Leipzig,Germany Utsunomiya University [email protected] Mine-cho 350,Utsunomiya-shi Tochigi 321-8505,Japan [email protected] Prof.Dr.S.-O.Enfors Prof.Dr.A.Fiechter Department ofBiochemistry and Institute ofBiotechnology Biotechnology Eidgenössische Technische Hochschule Royal Institute ofTechnology ETH-Hönggerberg Teknikringen 34 8093 Zürich,Switzerland 100 44 Stockholm,Sweden [email protected] [email protected] Prof.Dr.M.Hoare Prof.W.-S.Hu Department ofBiochemical Engineering Chemical Engineering and Materials Science University College London University ofMinnesota Torrington Place 421 Washington Avenue SE London,WC1E 7JE,UK Minneapolis,MN 55455-0132,USA [email protected] [email protected] VI Editorial Board Prof.Dr.B.Mattiasson Prof.J.Nielsen Department ofBiotechnology Center for Process Biotechnology Chemical Center,Lund University Technical University ofDenmark P.O.Box 124,221 00 Lund,Sweden Building 223 [email protected] 2800 Lyngby,Denmark [email protected] Prof.Dr.H.Sahm Prof.Dr.K.Schügerl Institute ofBiotechnolgy Institute ofTechnical Chemistry Forschungszentrum Jülich GmbH University ofHannover,Callinstraße 3 52425 Jülich,Germany 30167 Hannover,Germany [email protected] [email protected] Prof.Dr.G.Stephanopoulos Prof.Dr.U.von Stockar Department ofChemical Engineering Laboratoire de Génie Chimique et Massachusetts Institute ofTechnology Biologique (LGCB),Départment de Chimie Cambridge,MA 02139-4307,USA Swiss Federal Institute [email protected] ofTechnology Lausanne 1015 Lausanne,Switzerland [email protected] Prof.Dr.G.T.Tsao Prof.Dr.C.Wandrey Director Institute ofBiotechnology Lab.ofRenewable Resources Eng. 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Preface Preface The concept ofone microorganism killing another was introduced by Pasteur who coined the term antibiosis in 1877,but it was much later that this concept was realised in the form of an actual antibiotic.In 1929,the microbiologist Alexander Fleming published his observation about the inhibition ofthe gro- wth ofStaphylococcus aureuson an agar plate contaminated with Penicillium notatum.Three years later,it was shown that the growth inhibition was due to penicillin.The work was taken up further at Oxford University by pathologist Howard Florey and biochemist Ernst Chain.The first clinical trials with peni- cillin were undertaken in 1941.During the late 1940s the fungus Cephalospo- rium acremonium (now renamed Acremonium chrysogenum) was isolated from the sea at Cagliari (Italy) by Guiseppi Brotzu.This fungus was found to produce a b-lactam compound designated cephalosporin. The discovery of antibiotics for clinical use started with a b-lactam compound and is perhaps the most important discovery in the history of therapeutic medicine. The application ofantibiotics to the therapy ofinfectious diseases may conceivab- ly have saved more lives than any other medical therapy.The success ofb-lac- tams in the treatment ofinfectious disease is due to their high specificity and their low toxicity.Despite a growing number ofantibiotics and the incidence of penicillin-resistant isolates,b-lactams are still by far the most frequently used antibiotic. In this volume,it was my aim to get together leading scientists in the area of research on fungal b-lactam antibiotics who cover the most recent develop- ments in all areas ofresearch on this important group ofcompounds.Both the economic aspects and the industrial production offungal b-lactam antibiotics are summarised in the chapter by Barber et al. Because fungal b-lactam antibiotics are of great clinical importance, the biochemistry and genetics of their biosyntheses are well elucidated which is summarised in several chapters in this book.From an academic point ofview the analysis of the regulation of b-lactam biosynthesis represents the most advanced system for elucidating the regulation ofa fungal secondary metabo- lism gene cluster.Furthermore,with regard to applied aspects,this knowledge is ofgreat value to strategies for increasing production levels by the use ofgene regulators. Because penicillin and cephalosporin are produced by different fungi and differ in the later steps ofthe biosynthesis,the regulation ofpenicil- X Preface lin biosynthesis is described by Brakhage et al.and that ofcephalosporin bio- synthesis by Schmitt et al.Data presented in these chapters show that we are far from having a complete picture of the regulation of fungal b-lactam bio- syntheses.Within the last few years,several studies have indicated that the fun- gal b-lactam biosynthesis genes are controlled by a complex regulatory net- work.A comparison with the regulatory mechanisms (regulatory proteins and DNA elements) involved in the regulation ofgenes ofprimary metabolism in lower eukaryotes is thus of great interest. Furthermore, such investigations have contributed to the elucidation of signals leading to the production of b-lactams,their physiological meaning for the producing fungi and can be expected to have a major impact on rational strain improvement programs. Recently,the knowledge ofthe whole cephalosporin biosynthesis was comple- ted by cloning and characterisation of the missing isopenicillin N epimerase system which is reported by Martin et al. Investigations in recent years have shown that the various steps of b-lactam biosynthesis occur in different compartments.This finding is important not only for academic reasons but also for strategies to produce new compounds by meta- bolic engineering.Therefore,the current knowledge is reviewed by Evers et al. A major aspect of all biotechnological processes concerns their metabolic basis which,for antibiotics, includes the control offluxes towards antibiotics and the role ofprimary metabolism in production ofantibiotics.This impor- tant area is covered by the chapter by Gunnarsson et al. Among the constant challenges in managing bacterial infections are the outbreak of new infectious diseases and the evolution of known commensal and pathogenic bacteria to problem status by acquisition of new resistant determinants. Therefore, there is increasing pressure to provide more and superior antibiotics.A promising approach to identifying novel compounds is based on combinatorial biosynthesis. Because the biosynthesis of b-lactam antibiotics involves a non-ribosomal peptide synthetase (NRPS) which is rat- her well characterised,this NRPS represents a good starting point for combi- natorial biosynthesis offungal compounds.In addition to the biochemistry of b-lactam biosynthesis,this aspect is discussed in detail in the chapter by Hans von Döhren. Because this book covers the current knowledge ofall main aspects offun- gal b-lactam antibiotics,I hope it will be a useful reference source for both applied investigators and basic research scientists. I am deeply indebted to the authors ofthe chapters in this volume for their intelligent and diligent efforts which made this joint project possible.The care and energy with which they approached this work are gratefully acknowled- ged.I thank the series editor Thomas Scheper for his enthusiasm for preparing this volume and for his excellent scientific co-operation.The editorial and pro- duction staff of Springer Verlag are gratefully acknowledged for the fruitful and professional collaboration. Hannover,August 2004 Axel A.Brakhage