Abstract：
:A number of peptidases and proteases have been identified in Escherichia coli. Although their specific physiological roles are often not known, some of them have been shown to be involved in: the maturation of nascent polypeptide chains; the maturation of protein precursors; the signal peptide processing of exported proteins; the degradation of abnormal proteins; the use of small peptides as nutrients; the degradation of colicins; viral morphogenesis; the inactivation of some regulatory proteins for which a limited lifetime is a physiological necessity. Some of these enzymes act in concert to carry out specific functions. At present, twelve peptidases and seventeen proteases have been characterized. The specificity for only a few of them is known. The possible roles and the properties of these enzymes are discussed in this review.
journal_name
FEMS Microbiol Revjournal_title
FEMS microbiology reviewsauthors
Lazdunski AMdoi
10.1016/0168-6445(89)90035-1subject
Has Abstractpub_date
1989-09-01 00:00:00pages
265-76issue
3eissn
0168-6445issn
1574-6976journal_volume
5pub_type
杂志文章,评审abstract：:Natural genetic transformation is widely distributed in bacteria. It is a genetically programmed process that is inherent to the species. Transformation requires a specialized membrane-associated machinery for uptake of exogenous double-stranded DNA. It also requires dedicated cytosolic proteins, some of which have be...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2009.00164.x
更新日期：2009-05-01 00:00:00
abstract：:We review and update the work on genetic elements, e.g., viruses and plasmids (exluding IS elements and transposons) in the kingdom Crenarchaeota (Thermoproteales and Sulfolobales) and the orders Thermococcales and Thermoplasmales in the kingdom Euryarchaeota of the archael domain, including unpublished data from our ...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.1996.tb00239.x
更新日期：1996-05-01 00:00:00
abstract：:The genus Rickettsia (Alphaproteobacteria, Rickettsiales, Rickettsiaceae) is comprised of obligate intracellular parasites, with virulent species of interest both as causes of emerging infectious diseases and for their potential deployment as bioterrorism agents. Currently, there are no effective commercially availabl...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/1574-6976.12084
更新日期：2015-01-01 00:00:00
abstract：:DNA microarrays are a powerful and promising approach to gain a detailed understanding of the bacterial response and the molecular cross-talk that can occur as a consequence of host-pathogen interactions. However, published studies mainly describe the host response to infection. Analysis of bacterial gene regulation i...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2008.00103.x
更新日期：2008-05-01 00:00:00
abstract：:Wall teichoic acids (WTAs) are charged glycopolymers containing phosphodiester-linked polyol units and represent one of the major components of Gram-positive cell envelope. WTAs have important physiological functions in cell division, gene transfer, surface adhesion, drug resistance, and biofilm formation, and are cri...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章
doi：10.1093/femsre/fuaa064
更新日期：2020-12-03 00:00:00
abstract：:The genus Corynebacterium belongs to the taxonomic class Actinobacteria representing the high G+C branch of gram-positive bacteria. Among the most prominent members of this genus is Corynebacterium glutamicum, which is used by the biotechnological industry for the fermentative production of l-amino acids. Because of i...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2010.00228.x
更新日期：2010-09-01 00:00:00
abstract：:Formate is a substrate, or product, of diverse reactions catalyzed by eukaryotic organisms, eubacteria, and archaebacteria. A survey of metabolic groups reveals that formate is a common growth substrate, especially among the anaerobic eubacteria and archaebacteria. Formate also functions as an accessory reductant for ...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6968.1990.tb04940.x
更新日期：1990-12-01 00:00:00
abstract：:General principles of membrane function have been elucidated by the study of lactic acid bacteria. In this review, the operation and function of ion pumps, secondary transport systems and solute ATPases will be discussed. Despite their differences in kinetics and mechanisms between the transport systems, structural si...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6968.1990.tb04881.x
更新日期：1990-09-01 00:00:00
abstract：:Gram-positive bacteria have developed elaborate mechanisms to control ammonium assimilation, at the levels of both transcription and enzyme activity. In this review, the common and specific mechanisms of nitrogen assimilation and regulation in Gram-positive bacteria are summarized and compared for the genera Bacillus,...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2010.00216.x
更新日期：2010-07-01 00:00:00
abstract：:Purine salvage is an essential function for all obligate parasitic protozoa studied to date and most are also capable of efficient uptake of preformed pyrimidines. Much progress has been made in the identification and characterisation of protozoan purine and pyrimidine transporters. While the genes encoding protozoan ...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1016/j.femsre.2005.03.004
更新日期：2005-11-01 00:00:00
abstract：:Research innovations are constantly occurring in universities, research institutions and industrial research laboratories. These are reported in the scientific literature and presented to the scientific community in various congresses and symposia as well as through direct contacts and collaborations. Conversion of th...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1016/j.femsre.2005.04.001
更新日期：2005-08-01 00:00:00
abstract：:Metals are required cofactors for numerous fundamental processes that are essential to both pathogen and host. They are coordinated in enzymes responsible for DNA replication and transcription, relief from oxidative stress, and cellular respiration. However, excess transition metals can be toxic due to their ability t...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/1574-6976.12087
更新日期：2014-11-01 00:00:00
abstract：:Type II (proteic) toxin-antitoxin (TA) operons are widely spread in bacteria and archaea. They are organized as operons in which, usually, the antitoxin gene precedes the cognate toxin gene. The antitoxin generally acts as a transcriptional self-repressor, whereas the toxin acts as a co-repressor, both proteins consti...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fuv002
更新日期：2015-07-01 00:00:00
abstract：:First insights on the human gut microbiome have been gained from medium-sized, cross-sectional studies. However, given the modest portion of explained variance of currently identified covariates and the small effect size of gut microbiota modulation strategies, upscaling seems essential for further discovery and chara...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fux027
更新日期：2017-08-01 00:00:00
abstract：:The yeast Saccharomyces cerevisiae has been a favorite organism for pioneering studies on nutrient-sensing and signaling mechanisms. Many specific nutrient responses have been elucidated in great detail. This has led to important new concepts and insight into nutrient-controlled cellular regulation. Major highlights i...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/1574-6976.12065
更新日期：2014-03-01 00:00:00
abstract：:Methanogens form a very large and diverse group of microorganisms within the domain of the Archaea. Energy for their growth is obtained by the reduction of a variety of substrates into methane. Several genes, coding for enzymes involved in methanogenesis or in the central metabolism have been cloned and studied. The m...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.1994.tb00138.x
更新日期：1994-10-01 00:00:00
abstract：:Based on structural, biochemical, and genetic data, the soluble diiron monooxygenases can be divided into four groups: the soluble methane monooxygenases, the Amo alkene monooxygenase of Rhodococcus corallinus B-276, the phenol hydroxylases, and the four-component alkene/aromatic monooxygenases. The limited phylogenet...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1016/S0168-6445(03)00023-8
更新日期：2003-10-01 00:00:00
abstract：:The increasing numbers of characterized base-pairing small RNAs (sRNAs) and the identification of these regulators in a broad range of bacteria are allowing comparisons between species and explorations of sRNA evolution. In this review, we describe some examples of trans-encoded base-pairing sRNAs that are species-spe...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fuv014
更新日期：2015-05-01 00:00:00
abstract：:More than a century ago, the term 'virus' was introduced to describe infectious agents that are invisible by light microscopy and capable of passing through sterilizing filters. In addition to their extremely small size, most viruses have minimal genomes and gene contents, and rely almost entirely on host cell-encoded...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fuv037
更新日期：2015-11-01 00:00:00
abstract：:Sequencing-based studies have illuminated increased transcriptional complexity within the genome structure of bacteria and have resulted in the identification of many small regulatory RNAs (sRNA) and a large amount of antisense transcription. It remains an open question whether these sRNAs all indeed play regulatory r...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fuv022
更新日期：2015-05-01 00:00:00
abstract：:Plant cell wall consists mainly of the large biopolymers cellulose, hemicellulose, lignin and pectin. These biopolymers are degraded by many microorganisms, in particular filamentous fungi, with the aid of extracellular enzymes. Filamentous fungi have a key role in degradation of the most abundant biopolymers found in...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1016/j.femsre.2004.11.006
更新日期：2005-09-01 00:00:00
abstract：:The bacterium Chlamydia trachomatis is the etiological agent of the most common sexually transmitted infection in North America and Europe. Medical complications resulting from genital C. trachomatis infections arise predominantly in women where the initial infections often remain asymptomatic and thus unrecognized. U...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fuw027
更新日期：2016-11-01 00:00:00
abstract：:Host-adapted strains of Salmonella enterica cause systemic infections and have the ability to persist systemically for long periods of time and pose significant public-health problems. Multidrug-resistant S. enterica serovar Typhi (S. Typhi) and nontyphoidal Salmonella (NTS) are on the increase and are often associate...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2012.00332.x
更新日期：2012-05-01 00:00:00
abstract：:Lipopeptides constitute a structurally diverse group of metabolites produced by various bacterial and fungal genera. In the past decades, research on lipopeptides has been fueled by their antimicrobial, antitumour, immunosuppressant and surfactant activities. However, the natural functions of lipopeptides in the lifes...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2010.00221.x
更新日期：2010-11-01 00:00:00
abstract：:O-antigen polysaccharide is a major immunogenic feature of the lipopolysaccharide of Gram-negative bacteria, and most species produce a large variety of forms that differ substantially from one another. There are 18 known O-antigen forms in the Yersinia pseudotuberculosis complex, which are typical in being composed o...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fux002
更新日期：2017-03-01 00:00:00
abstract：:Glucuronide and sulfate conjugation are important pathways in the peripheral metabolism of thyroid hormone. These reactions occur predominantly in the liver, and especially the glucuronides are excreted in the bile. Although an enterohepatic circulation after intestinal hydrolysis of iodothyronine conjugates is sugges...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6968.1988.tb02709.x-i1
更新日期：1988-02-01 00:00:00
abstract：:The genome of bacteriophage fd has been engineered to allow foreign amino acid sequences to be displayed in the exposed N-terminal segment of the major coat protein in the virus particle: small peptides can be encoded directly; larger peptides are encoded in hybrid virions, in which wild-type coat protein subunits are...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.1995.tb00184.x
更新日期：1995-08-01 00:00:00
abstract：:In the present review, we aim to provide a general introduction to different facets of the arms race between pathogens and their hosts/environment, emphasizing its evolutionary aspects. We focus on vector-borne parasitic protozoa, which have to adapt to both invertebrate and vertebrate hosts. Using Leishmania, Trypano...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1093/femsre/fuw018
更新日期：2016-09-01 00:00:00
abstract：:Legionella pneumophila is naturally found in fresh water were the bacteria parasitize within protozoa. It also survives planctonically in water or biofilms. Upon aerosol formation via man-made water systems, L. pneumophila can enter the human lung and cause a severe form of pneumonia, called Legionnaires' disease. The...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2002.tb00607.x
更新日期：2002-06-01 00:00:00
abstract：:For many years, the bacterial cells were regarded as tiny vessels lacking internal organization. This view, which stemmed from the scarcity of membrane-bounded organelles, has changed considerably in recent years, mainly due to advancements in imaging capabilities. Consequently, despite the rareness of conventional or...
journal_title：FEMS microbiology reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1574-6976.2012.00348.x
更新日期：2012-09-01 00:00:00
