Abstract:
:An exo-polygalacturonase (EC 3.2.1.15) was purified to apparent homogeneity from cultures of Fusarium oxysporum f.sp. lycopersici on synthetic medium supplemented with citrus pectin, using preparative isoelectric focusing. The enzyme, denominated PG2, had an apparent M(r) of 74000 Da upon SDS-PAGE. The pI of the main PG2 isoform was 4.5, and pH and temperature optima were 5.0 and 55 degrees C, respectively. PG2 hydrolyzed polygalacturonic acid in an exo-manner, as demonstrated by anaysis of degradation products. The enzyme was N-glycosylated. The N-terminal amino acid sequence, L-A-F-N-V-P-S-K-P-P, has no identify to other known polygalacturonases.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Di Pietro A,Roncero MIdoi
10.1111/j.1574-6968.1996.tb08592.xsubject
Has Abstractpub_date
1996-12-01 00:00:00pages
295-9issue
2eissn
0378-1097issn
1574-6968pii
S0378109796004272journal_volume
145pub_type
杂志文章abstract::To rapidly identify natural isolates of marine bioluminescent bacteria, we developed amplified ribosomal DNA restriction analysis (ARDRA) methods. ARDRA, which is based on the restriction patterns of 16S rRNA gene digested with five enzymes (EcoRI, DdeI, HhaI, HinfI, RsaI), clearly distinguished the 14 species of mari...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2006.00129.x
更新日期:2006-03-01 00:00:00
abstract::Corynebacterium diphtheriae strains express non-fimbrial surface proteins able to recognize and bind to specific host cells receptors. Protein extracts were obtained from bacterial cells by mechanical process and ammonium sulfate precipitation at 25 and 45% (w/v) saturation. SDS-PAGE analysis of the extracts detected ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10609.x
更新日期:2001-04-13 00:00:00
abstract::Pyruvate, the key regulator in connection of a variety of metabolic pathways, influences transcription of the Escherichia coli genome through controlling the activity of two pyruvate-sensing two-component systems (TCSs), BtsSR and PyrSR. Previously, we identified the whole set of regulatory targets of PyrSR with low-a...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnz251
更新日期:2019-12-01 00:00:00
abstract::We cloned and characterized the Neisseria meningitidis rfaC gene which encodes an enzyme, alpha-1,5 heptosyltransferase I, involved in the synthesis of the deep-core of the lipooligosaccharide. The N. meningitidis rfaC mutant, obtained by an allelic exchange, produced lipooligosaccharide which migrated faster in sodiu...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1997.tb10392.x
更新日期:1997-06-01 00:00:00
abstract::This study focused on the alanine racemase gene (alr-2), which is involved in the synthesis of d-alanine that forms the backbone of the cell wall. A stable alr-2 knockout mutant of Aeromonas hydrophila HBNUAh01 was constructed. When the mutant was supplemented with d-alanine, growth was unaffected; deprivation of d-al...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnv089
更新日期:2015-07-01 00:00:00
abstract::Brettanomyces/Dekkera yeasts have been identified as part of the grape yeast flora. They are well known for colonizing the cellar environmental and spoiling wines, causing haze, turbidity and strong off-flavours in wines and enhancing the volatile acidity. As the general practices applied to combat Brettanomyces/Dekke...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2010.02194.x
更新日期:2011-03-01 00:00:00
abstract::The DnaK chaperone system is involved in various cellular processes such as the control of the folded and oligomeric state of proteins under stress and non-stress conditions. In this study we functionally characterised the homologues of the DnaK system from Clostridium acetobutylicum DnaK, DnaJ, GrpE and OrfA were het...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1999.tb13363.x
更新日期:1999-01-01 00:00:00
abstract::The formation of landomycin A or one of its derivatives (5,6-anhydrolandomycin A) in a heterologous strain has never been achieved. It has now been made possible by the coexpression of a cosmid containing all biosynthetic genes necessary to produce landomycin A together with a pathway-specific regulatory gene. As host...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/S0378-1097(03)00861-9
更新日期:2004-01-15 00:00:00
abstract::Methods for in vivo monitoring of redox changes in different cellular compartments have been developed in recent years, and are mostly based on redox-sensitive variants of the green fluorescent protein (GFP). However, due to the thermodynamic stability of the introduced reactive disulfide bond, these sensors are limit...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2010.01935.x
更新日期:2010-05-01 00:00:00
abstract::A Ca(2+)/calmodulin-dependent protein kinase (CaMK) gene was cloned and characterized from Arthrobotrys dactyloides, a nematode-trapping fungus. The resulting 373-amino-acid protein, FCaMK, has significant homology to mammalian CaMKs. FCaMK contains a serine/threonine kinase domain followed by a calmodulin-binding dom...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2002.tb11237.x
更新日期:2002-06-18 00:00:00
abstract::The effects of overexpression of the apurinic/apyrimidinic DNA endonuclease Nfo on wet and dry heat and UV-C (254 nm) resistance of Bacillus subtilis spores with or without alpha/beta-type small, acid-soluble spore proteins (SASP) were determined. Results revealed that overexpression of Nfo > or =50-fold in spores inc...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2009.01845.x
更新日期:2010-01-01 00:00:00
abstract::Biological halogenation of aromatic compounds implies the generation of reducing equivalents in the form of e.g. NADH. Thermodynamic calculations show that coupling the halogenation step to a step in which the reducing equivalents are oxidized with a potent oxidant such as O2 or N2O makes the halogenation reaction the...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1998.tb13238.x
更新日期:1998-10-15 00:00:00
abstract::The effect of synthetic sex pheromone on pheromone-inducible conjugation between the isogenic Enterococcus faecalis strains OG1RF and OG1SS was investigated in (i) Todd-Hewitt broth medium and (ii) intestinal mucus isolated from germ-free rats. In broth, the presence of synthetic pheromone cCF10 had no detectable effe...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10902.x
更新日期:2001-11-13 00:00:00
abstract::We have identified phosphatidylethanolamine as one of the major phospholipids of Clostridium perfringens by two dimensional thin layer chromatography of the intact lipids and of their deacylation products and by liquid chromatography followed by mass spectrometry of the intact neutral phospholipid fraction. The princi...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/j.femsle.2004.01.048
更新日期:2004-04-01 00:00:00
abstract::Marine snow aggregates are microbial hotspots that support high bacterial abundance and activities. We conducted laboratory experiments to compare cell-specific bacterial protein production (BPP) and protease activity between free-living and attached bacteria. Natural bacterial assemblages attached to model aggregates...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2006.00520.x
更新日期:2007-01-01 00:00:00
abstract::This study was undertaken to investigate the binding activity of Streptococcus suis serotype 2 to albumin. Using flow cytometry we observed a binding activity of S. suis to albumin for virulent as well as for avirulent isolates. Western immunoblots analysis revealed that a 39-kDa S. suis protein was responsible, at le...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1997.tb10249.x
更新日期:1997-02-15 00:00:00
abstract::Resveratrol (3,5,4'-trihydroxy-trans-stilbene), an antifungal phytoalexin produced by grapes, peanuts, and Japanese knotweeds, is thought to be a beneficial dietary phytochemical in red wine and grape juice. Information on its antibacterial properties and biotransformation, however, is limited. We surveyed the interac...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2009.01691.x
更新日期:2009-08-01 00:00:00
abstract::Small plasmids were found in two clinical isolates of Streptococcus pneumoniae from Spain (strains 671 and 678) and in one strain (SpR) isolated in Germany. All three strains contained one plasmid (2.75 to 3.1 kb) which is related to the only previously described pneumococcal plasmid, pDP1. Strains 678 and SpR carried...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(91)90019-7
更新日期:1991-01-01 00:00:00
abstract::The diheme cytochromes c of the widespread TsdA family are bifunctional thiosulfate dehydrogenase/tetrathionate reductases. Here, biochemical information was collected about TsdA from the Epsilonproteobacterium Wolinella succinogenes (WsTsdA). The situation in W. succinogenes is unique since TsdA is closely associated...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnx003
更新日期:2017-02-01 00:00:00
abstract::Haemin (iron protoporphyrin IX) is an essential growth factor for the periodontal pathogen. Porphyromonas gingivalis. Iron protoporphyrin IX (IPP IX) binding to the avirulent P. gingivalis beige variant (W50/BE1) and the black-pigmenting parent wild-type strain W50 was quantified. W50/BE1 grown in a chemostat under ha...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1996.tb08364.x
更新日期:1996-07-15 00:00:00
abstract::The ability to identify pathogenic organisms rapidly provides significant benefits to clinicians; in particular, with respect to best prescription practices and tracking of recurrent infections. Conventional bioassays require 3-5 days before identification of an organism can be made, thus compromising the effectivenes...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/S0378-1097(04)00040-0
更新日期:2004-03-19 00:00:00
abstract::An open reading frame located in the tyrB-uvrA intergenic region of the Escherichia coli MG1655 chromosome was identified as encoding the class B acid phosphatase of this species on the basis of cloning and expression experiments. A protocol for purification of the enzyme (named AphA) was developed, and its properties...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1997.tb10192.x
更新日期:1997-01-15 00:00:00
abstract::Alignment of published 16S rRNA sequences allowed the definition of a pair of oligonucleotides suitable for polymerase chain reaction (PCR). Using this pair of PCR primers, several mycoplasmas including the four human parasites Mycoplasma genitalium, M. hominis, M. salivarium and M. orale were detected. This DNA ampli...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1016/0378-1097(91)90467-o
更新日期:1991-06-01 00:00:00
abstract::Marine ammonia oxidising bacteria were enriched by incubation of sea water, amended with ammonium sulphate, and subsequent subculture in liquid inorganic medium. PCR primers were designed to be specific for rDNA sequences from ammonia oxidisers belonging to the beta-sub-group of the proteobacteria. These primers were ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.1994.tb07059.x
更新日期:1994-07-15 00:00:00
abstract::Lactobacilli have been shown to be important in the maintenance of the healthy urogenital flora. One strain, Lactobacillus fermentum RC-14, releases surface-active components which can inhibit adhesion of uropathogenic bacteria. Using a quantitative method for determining inhibition of adhesion, a protein with high an...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2000.tb09282.x
更新日期:2000-09-01 00:00:00
abstract::The applicability of different PCR-based techniques, random amplified polymorphic DNA, cleaved amplified polymorphic sequence and SSRs (simple sequence repeats) to genetically identify, typify and discriminate among Saccharomyces cerevisiae strains, was investigated. The analysis and comparison of the genetic profiles...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10975.x
更新日期:2001-12-18 00:00:00
abstract::Trichothecenes are an important family of mycotoxins produced by several species of the genus Fusarium. These fungi cause serious disease on infected plants and postharvest storage of crops, and the toxins can cause health problems for humans and animals. Unfortunately, there are few methods for controlling mycotoxin ...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/1574-6968.12236
更新日期:2013-11-01 00:00:00
abstract::The production of exopolysaccharides (EPSs) by a mucoid clinical isolate of Burkholderia cepacia involved in infections in cystic fibrosis patients, was studied. Depending on the growth conditions, this strain was able to produce two different EPS, namely PS-I and PS-II, either alone or together. PS-I is composed of e...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1111/j.1574-6968.2001.tb10792.x
更新日期:2001-08-07 00:00:00
abstract::The phyCg gene encoding a new phytase from Citrobacter gillenii was optimized, synthesized, cloned and expressed in Pichia pastoris. Analysis of the amino acid sequence of the enzyme showed that it belongs to the histidine acid phosphatase family. The amino acid sequence of the PhyCg phytase has the highest homology (...
journal_title:FEMS microbiology letters
pub_type: 杂志文章
doi:10.1093/femsle/fnaa217
更新日期:2020-12-21 00:00:00
abstract::Use of the green fluorescent protein (GFP) of Aequorea victoria as a reporter for protein and DNA localization has provided sensitive, new approaches for studying the organization of the bacterial cell, leading to new insights into diverse cellular processes. GFP has many characteristics that make it useful for locali...
journal_title:FEMS microbiology letters
pub_type: 杂志文章,评审
doi:10.1111/j.1574-6968.2001.tb10854.x
更新日期:2001-10-16 00:00:00