Abstract:
:A novel antimicrobial peptide, named misgurin, was isolated and characterized from the loach (mudfish), Misgurnus anguillicaudatus. The 21-amino-acid peptide with a molecular mass of 2502 Da was purified to homogeneity using a heparin-affinity column and C18 reverse-phase and gel-permeation high-performance liquid chromatography. The complete amino acid sequence of misgurin, which was determined by an automated amino acid sequencer, was Arg-Gln-Arg-Val-Glu-Glu-Leu-Ser-Lys-Phe-Ser-Lys-Lys-Gly-Ala-Ala-Ala-Arg- Arg-Arg-Lys. Misgurin is a strongly basic peptide which has 5 arginine and 4 lysine residues. Comparison of the amino acid sequence with those of other known antimicrobial peptides revealed that misgurin was a novel antimicrobial peptide. Misgurin showed a strong antimicrobial activity in vitro against a broad spectrum of microorganisms without significant hemolytic activity and was about 6 times more potent than magainin 2. Scanning electron microscopy confirmed that the peptide caused damage to the cell membrane by a pore-forming mechanism similar to that of magainin 2. This damage occurred at the minimal inhibition concentration (MIC), but at higher concentration than MIC it lysed the cell.
journal_name
FEBS Lettjournal_title
FEBS lettersauthors
Park CB,Lee JH,Park IY,Kim MS,Kim SCdoi
10.1016/s0014-5793(97)00684-4subject
Has Abstractpub_date
1997-07-14 00:00:00pages
173-8issue
2-3eissn
0014-5793issn
1873-3468pii
S0014-5793(97)00684-4journal_volume
411pub_type
杂志文章相关文献
FEBS LETTERS文献大全abstract::Fructose-1,6-bisphosphatase, a key enzyme in gluconeogenesis, undergoes catabolite inactivation when glucose is added to gluconeogenetically active cells of the yeast Saccharomyces cerevisiae. Phosphorylation of the enzyme is followed by rapid degradation. To elucidate the cellular proteolytic system involved in catab...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(94)00668-7
更新日期:1994-08-01 00:00:00
abstract::Higher basal 2-deoxy-D-glucose uptake in rheumatoid synovial cells than in non-rheumatoid synovial cells, was found to be associated with an increased interleukin-1 beta (IL-1 beta) secretion (respectively 850 +/- 238 vs. 8.3 +/- 2.4 pg/24 h/10(5) cells, mean +/- S.E.M.). When exogenous human recombinant IL-1 beta was...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(92)80481-u
更新日期:1992-05-25 00:00:00
abstract::An Mr 21 000 polypeptide, designated APPG, has been purified by reverse-phase, high-performance liquid chromatography (RP-HPLC), from acid extracts of porcine anterior pituitary glands. This acidic protein possesses an isoelectric point of 4.9. Amino acid analysis shows that it is not a glycoprotein and estimates it t...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(82)81055-7
更新日期:1982-10-18 00:00:00
abstract::Macrophages contain arginase and an inducible NO synthase, demonstrated by using L-arginine, the common substrate, for production of both nitric oxide and urea. Arginase was inhibited by nitrite, the stable end product of NO. This inhibition was non-competitive, and could not be explained by the reaction of nitrite wi...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(96)00659-x
更新日期:1996-07-22 00:00:00
abstract::Polysulfide is a bound sulfur species derived from endogenous H2S. When mouse neuroblastoma, Neuro2A cells were exposed to tert-butyl hydroperoxide after treatment with polysulfide, a significant decline in cell toxicity was observed. Rapid uptake of polysulfides induced translocation of Nrf2 into the nucleus, resulti...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2013.09.013
更新日期:2013-11-01 00:00:00
abstract::The GTPase RhoA is essential for the development of pre-T cells in the thymus. To investigate the mechanisms used by RhoA to control thymocyte development we have used Affymetrix gene profiling to identify RhoA regulated genes in T cell progenitors. The data show that RhoA plays a specific and essential role in pre-T ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2007.07.077
更新日期:2007-09-04 00:00:00
abstract::We applied 1D homonuclear Hartmann-Hahn (1D-HOHAHA) and difference NOE experiments to determine the chemical structure of Forssman's antigen, a glycolipid purified from sheep red blood cells. The subspectra corresponding to the individual sugar components were extracted from overlapping proton resonances by selective ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(87)81188-2
更新日期:1987-07-13 00:00:00
abstract::The hirudin-like factor 1 (HLF1) of Hirudo medicinalis belongs to a new class of leech-derived factors. In previous investigations, HLF1 did not exhibit anticoagulatory activities. Here, we describe the analysis of natural and synthetic variants of HLF1 and HLF-Hyb, a yet uncharacterized member of the HLF family. Modi...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1002/1873-3468.13683
更新日期:2020-03-01 00:00:00
abstract::In Graves' disease (GD) the presence of antibodies to the thyroid stimulating hormone (TSH) receptor leads to stimulation of the thyroid gland. The thyroid stimulating activity of Graves' IgG is normally ascertained by bioassays measuring cAMP production. We have investigated the effect of Graves' IgG on the quantitat...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(88)80377-6
更新日期:1988-05-09 00:00:00
abstract::We amplified, using the polymerase chain reaction and calcitonin receptor (CTR) specific primers, RNA extracted from medullary thyroid carcinoma (MTC) and the derived TT cell line. Both secrete large amounts of calcitonin. Electrophoresis of amplification products revealed, in both cases, an ethidium bromide-stained b...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(94)80503-2
更新日期:1994-04-04 00:00:00
abstract::The nature of the G-proteins present in the pre- and post-synaptic plasma membranes and in the synaptic vesicles of cholinergic nerve terminals purified from the Torpedo electric organ was investigated. In pre- and post-synaptic plasma membranes, Bordetella pertussis toxin, known to catalyze the ADP-ribosylation of th...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(87)80190-4
更新日期:1987-09-28 00:00:00
abstract::The Escherichia coli signal transduction protein PII, product of the glnB gene, was overproduced and purified. The predicted molecular weight of the protein based on the correct nucleotide sequence is 12,427 and is very close to the value 12,435 obtained by matrix-assisted laser desorption mass spectrometry. Hexagonal...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(94)80203-3
更新日期:1994-01-17 00:00:00
abstract::Glucocorticoid-induced TNFR-related protein (GITR) is constitutively expressed in T regulatory (Treg) cells and regulates their suppressive function. We identified two methylated CpG islands in the Gitr locus. Using a ChIP assay, we demonstrate that both DNMT1 and methyl-CpG-binding domain Protein 4 (MBD4) bind to the...
journal_title:FEBS letters
pub_type: 信件
doi:10.1002/1873-3468.12690
更新日期:2017-07-01 00:00:00
abstract::We have successfully delivered FITC and FITC-Dextran (70, 250 kDa) into canola protoplasts by centrifuging cells with different amounts of microbubbles at variable centrifuge speed. The efficiency is around 90%, while cell viability remains high. Confocal microscopy images show that both FITC and FITC-Dextran are scat...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2012.12.005
更新日期:2013-01-31 00:00:00
abstract::The von Hippel-Lindau (VHL) tumor suppressor gene regulates the extracellular matrix by controlling fibronectin deposition. To identify novel VHL target genes, we subjected mRNA from VHL-deficient RCC cells (786-0-pRC) and a transfectant re-expressing wildtype VHL (786-0-VHL) to differential expression profiling. Amon...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(03)01392-9
更新日期:2004-01-02 00:00:00
abstract::Effects of amino acid substitutions in the first extracellular loop region of the delta- and mu-opioid receptors were examined. Substitution of lysine-108 of the delta-receptor (delta K108) with asparagine improved affinity to [D-Ala2,MePhe4,Gly-ol5]enk ephalin (DAGO), a mu-selective peptide agonist, to be comparable ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(95)01034-c
更新日期:1995-10-09 00:00:00
abstract::Rabphilin is a synaptic vesicle-associated protein proposed to play a role in regulating neurotransmitter release. Here we report the isolation and identification of a novel protein complex containing rabphilin, annexin A4 and synaptotagmin 1. We show that the rabphilin C2B domain interacts directly with the N-terminu...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/S0014-5793(03)01513-8
更新日期:2004-02-13 00:00:00
abstract::Fourteen truncated forms of Leuconostoc mesenteroides NRRL B512-F dextransucrase, involving N-, C- or N- plus C-terminal domain truncations were tested for their ability to bind dextrans. The shortest fragment (14kDa molecular weight) that still exhibited a strong interaction with dextran was localized between amino a...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2007.08.062
更新日期:2007-10-02 00:00:00
abstract::Platinum electrodes can be coated with cytochrome b5-phospholipid monolayers by the Langmuir-Blodgett technique. Cyclic voltammetry of a series of dyes shows that the coated electrodes become selective for certain electroactive species. The electron transfer reactions of negatively charged species are inhibited at the...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(87)81463-1
更新日期:1987-03-09 00:00:00
abstract::Ovine trophoblastic protein B (oTPB), an embryonic protein, is a 20 kDa secretory protein which is synthesized by the ovine conceptus from days 12 to 22 of pregnancy. oTPB was purified by HPLC using ion-exchange chromatography on a DEAE column and was subsequently chromatographed on a reversed-phase column. Automated ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(88)80574-x
更新日期:1988-02-08 00:00:00
abstract::DNA methylation has a profound impact on the regulation of gene expression in normal cell development, and aberrant methylation has been recognized as a key factor in the pathogenesis of human diseases such as cancer. The discovery of modified nucleobases arising from 5-methylcytosine (5mC) through consecutive oxidati...
journal_title:FEBS letters
pub_type: 杂志文章,评审
doi:10.1002/1873-3468.13058
更新日期:2018-06-01 00:00:00
abstract::The gene for human tetranectin was isolated from a genomic library with a mixture of degenerate oligonucleotide probes. The gene is about 12 kbp and contains two intervening sequences. The gene encodes a protein of 202 amino acid residues, with a signal peptide of 21 amino acid residues, followed by the tetranectin se...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(92)80729-z
更新日期:1992-08-31 00:00:00
abstract::The four chain agglutinins from Abrus precatorius, Viscum album and Ricinus communis promote depurination of the 28 S rRNA from rabbit reticulocyte ribosomes characteristic of the common ribosome-inactivating proteins (RIPs). These agglutinins inhibited mammalian protein synthesis at nanomolar concentrations but they ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(93)80193-x
更新日期:1993-08-23 00:00:00
abstract::The cDNA coding for mature human alpha 1-proteinase inhibitor (alpha 1-PI) has been inserted into a variety of yeast expression vectors. Yeast cells transformed with these plasmids were then assayed for the production of mature, unglycosylated alpha 1-PI. The production level is optimal when the recombinant plasmid ca...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(86)81391-6
更新日期:1986-08-11 00:00:00
abstract::In the present study, we investigated the roles and molecular mechanisms of miR-320a in human nasopharyngeal carcinoma (NPC). miR-320a expression was strongly reduced in NPC tissues and cell lines. Overexpression of miR-320a significantly suppressed NPC cell growth, migration, invasion and tumor growth in a xenograft ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2014.08.021
更新日期:2014-10-16 00:00:00
abstract::Seryl-tRNA synthetases (SerRSs) fall into two distinct evolutionary groups of enzymes, bacterial and methanogenic. These two types of SerRSs display only minimal sequence similarity, primarily within the class II conserved motifs, and possess distinct modes of tRNA(Ser) recognition. In order to determine whether the t...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2005.06.073
更新日期:2005-08-15 00:00:00
abstract::Resonance Raman spectra were observed for compound II of horseradish peroxidase A2, and the Fe(IV) = O stretching Raman line was identified at 775 cm-1. This Raman line shifted to 741 cm-1 upon a change of solvent from H2(16)O to H2(18)O, indicating occurrence of the oxygen exchange between the Fe(IV) = O heme and bul...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(86)81038-9
更新日期:1986-11-24 00:00:00
abstract::Random sequences of 120-130 amino acid residues were inserted into a surface loop region of Escherichia coli RNase HI. This library was screened and about 10% of the clones were found to retain RNase H activity. Subsequent random mutagenesis led to an increase in RNase H activity and solubility of the protein. The ins...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(96)01522-0
更新日期:1997-02-03 00:00:00
abstract::The triplex structure in vitro is well established; however, no direct evidence has been available concerning its existence in the cell. Using the direct chemical probing here we show that the triplex H structure can exist in E. coli cells at acidic intracellular pH values; this structure differs in some details from ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(90)81324-h
更新日期:1990-11-12 00:00:00
abstract::Skeletal muscle plays key roles in metabolic homeostasis. Loss of muscle mass, called muscle atrophy exacerbates disease-associated metabolic perturbations. In this study, we characterized the molecular functions and mechanisms underlying regulation of skeletal muscle atrophy induced by denervation. Denervation signif...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2013.11.009
更新日期:2014-01-03 00:00:00