نتایج جستجو برای: toxin peptides

تعداد نتایج: 128988  

2015
Elena Kudryashova Wuyuan Lu Dmitri S. Kudryashov

Bacteria are one of the major factors shaping the evolutionary landscape of all eukaryotic organisms including humans. Bacterial epidemics, which have taken hundreds of millions of human lives in the observable history, are arguably some of the most vivid and cruel manifestations of natural selection. The history of co-evolution of eukaryotic and prokaryotic organisms is ingrained in their orga...

Journal: :Protein engineering 1996
S Thennarasu R Nagaraj

Peptides are part of the host defense system against bacteria and fungi in species right across the evolutionary scale. However, endogenous antibacterial peptides are often composed of 25 residues or more and, therefore, are not ideal for therapeutic use. Hence it is of considerable interest to design and engineer short peptides having antimicrobial activity. Peptides composed of 18 amino acids...

Journal: :Toxicon : official journal of the International Society on Toxinology 2013
Mohamed A Abdel-Rahman Veronica Quintero-Hernandez Lourival D Possani

Proteomic analysis of the scorpion venom Scorpio maurus palmatus was performed using reverse-phase HPLC separation followed by mass spectrometry determination. Sixty five components were identified with molecular masses varying from 413 to 14,009 Da. The high percentage of peptides (41.5%) was from 3 to 5 KDa which may represent linear antimicrobial peptides and KScTxs. Also, 155 expressed sequ...

Journal: :avicenna journal of medical biotechnology 0

mycoplasma genitalium (m.genitalium) is a sexually transmitted pathogen. detection of this microorganism in clinical specimens by culture is rather difficult and time consuming. the aim of this study was to produce polyclonal antibody against a synthetic peptide from p110 protein of m.genitalium in order to develop a diagnostic tool for detection of this microorganism in clinical specimens. a s...

Journal: :Journal of biomedical science 2000
R H Shyu M F Shaio S S Tang H F Shyu C F Lee M H Tsai J E Smith H H Huang J J Wey J L Huang H H Chang

Botulinum neurotoxin (BoNT) is one of the most toxic substances known to produce severe neuromuscular paralysis. The currently used vaccine is prepared mainly from biohazardous toxins. Thus, we studied an alternative method and demonstrated that DNA immunization provided sufficient protection against botulism in a murine model. A plasmid of pBoNT/A-Hc, which encodes the fragment C gene of type ...

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