Design of improved synthetic antifungal peptides with targeted variations in charge, hydrophobicity and chirality based on a correlation study between biological activity and primary structure of plant defensin γ-cores

Amino Acids ◽  
2021 ◽  
Author(s):  
Estefany Braz Toledo ◽  
Douglas Ribeiro Lucas ◽  
Thatiana Lopes Biá Ventura Simão ◽  
Sanderson Dias Calixto ◽  
Elena Lassounskaia ◽  
...  
1990 ◽  
Vol 9 (2) ◽  
pp. 221-227 ◽  
Author(s):  
Ad�lia C. O. Cintra ◽  
Carlos A. Vieira ◽  
Jos� R. Giglio

RSC Advances ◽  
2018 ◽  
Vol 8 (19) ◽  
pp. 10644-10653 ◽  
Author(s):  
H. K. Kumara ◽  
R. Suhas ◽  
D. M. Suyoga Vardhan ◽  
M. Shobha ◽  
D. Channe Gowda

The present investigation involves the synthesis and spectroscopic and biological activity studies of the bis-hydrazones of quinazolinones derived from aspartic acid and glutamic acid.


1998 ◽  
Vol 44 (5) ◽  
pp. 477-481 ◽  
Author(s):  
S Minka ◽  
M Bruneteau

The lipopolysaccharides LPS I and LPS II, isolated from the hypovirulent EV40 strain of Yersinia pestis, are composed only of type R lipopolysaccharides. This type consists of two forms, a and b, depending on their solubility pattern in a solvent mixture containing varying proportions of chloroform, methanol, hexane, and hydrochloric acid. LPS I consists of one subtype, RIb, while LPS II consists of two subtypes, RIIa and RIIb. Analysis by gel electrophoresis shows that the mass of these lipopolysaccharide forms are in the vicinity of 2000-3000 Da. The RIb and RIIb subtypes, which are found in the majority of lipopolysaccharide I and II fractions, are composed of ketoses and amines that are similar to those occurring in LPS I and LPS II. In contrast, the two subtypes RIIa and RIIb are different both in terms of the composition of lipid A and the extent of its substitution. Certain fractions of RIIa contain only lipid A and 3-deoxy-D-manno-octulosonic acid (KDO), while other fractions of RIIb possess a lipid A, which is not substituted by arabinose. The whole set of these R-type lipopolysaccharide forms are excellent models for the study of the role of the primary structure of the polysaccharide region, and for the effect of lipid A substitution on the biological activity of bacterial lipopolysaccharides.Key words: Yersinia pestis, hypovirulence, lipopolysaccharides, R type.[Journal translation]


1987 ◽  
Vol 40 (11) ◽  
pp. 1515-1519 ◽  
Author(s):  
E. MEYERS ◽  
G. S. BISACCHI ◽  
L. DEAN ◽  
W. C. Liu ◽  
B. MINASSIAN ◽  
...  

2008 ◽  
Vol 156 (3) ◽  
pp. 509-514 ◽  
Author(s):  
Ichiro Yamamoto ◽  
Hiroyuki Kaiya ◽  
Chihiro Tsutsui ◽  
Takafumi Sakai ◽  
Akira Tsukada ◽  
...  

1967 ◽  
Vol 167 (1009) ◽  
pp. 350-364 ◽  

Fleming discovered an enzyme which he called lysozyme; it had ‘the power of rapidly dissolving certain bacteria, which is possessed by many animal and vegetable tissues and secretions and to a very marked degree by egg-white' (Fleming 1922). Hen egg-white lysozyme was crystallized by Abraham & Robinson in 1937; its homogeneity was verified by different chromatographic and physical methods, which have recently been reviewed (Jollès, P. 1960, 1964). Since 1958, Jollès and others have been engaged in elucidating the primary structure; they published a preliminary formula in 1961 (Jollès, J. & Jollès, P. 1961), followed in 1963 by a detailed study (Jollès, J., Jauregui-Adell, Bernier & Jollès, P. 1963); their structure differed slightly from that of Canfield (1963). The positions of the four disulphide bonds were also established (see table 1), and the complete formula is indicated in figure 1.


FEBS Letters ◽  
1973 ◽  
Vol 30 (2) ◽  
pp. 151-156 ◽  
Author(s):  
Irene Foss ◽  
Knut Sletten ◽  
Olav Trygstad

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