2020. 3. 7. 04:00ㆍ카테고리 없음
Mammalian defensins are abundant antimicrobial peptides that contribute to host defense. They are characterized by several conserved amino acids, including six invariant cysteine residues which form three intramolecular disulfide bonds and stabilize the tertiary structure. Cryptdin-4 (Crp4), a mouse alpha-defensin with potent in vitro bactericidal activity, has a primary structure distinct from all known alpha-defensins in that its polypeptide backbone uniquely lacks three residues between Cys(IV) and Cys(V).
NMR diffusion experiments showed that Crp4 is monomeric in solution, and its three-dimensional solution structure, determined by two-dimensional proton NMR, consists of a triple-stranded antiparallel beta-sheet with the beta-strands joined to each other by a series of tight turns and a beta-hairpin. However, the overall beta-sheet content in Crp4 is lower than that of other alpha-defensin structures, while the shape and orientation of the Crp4 beta-hairpin also differ from those of other alpha-defensin structures. These structural characteristics combined with the high overall cationicity of Crp4 may contribute to its broad bactericidal spectrum and membrane disruptive activity.Organizational Affiliation:Structural Biological Research Group, Department of Biological Sciences, University of Calgary, Calgary, Alberta T2N 1N4, Canada.Hide Full Abstract.
Iptv Player 0.28.1.8826 Dc 25.09.2012
IP-TV Player - a high quality player for broadcasting live channels IP-TV. Individual settings for the channels, the ability to record the stream to a file.
Supports TV format JTV, scheduling recording / viewing, writing background.IPTV (it also DVB-IP, or TVoIP) does NOT mean 'television broadcasting over the Internet.' The beginning of this abbreviation, IP, it means only that you use this data transfer protocol (in this particular case, to transfer video ), but the entire system with the World Wide Web is not bound absolutely nothing. IPTV service provides you with your ISP, ie the company that carried you to the flat network cable (Ethernet) or established the ADSL-modem. IPTV like ordinary cable TV, only in the house, it does not come through a coaxial cable, and on the same channel as the internet (ADSL modem or Ethernet). If your ISP does not provide such a service or provide it only through a set-top box and does not publish a list of channels, the player you do not need.IPTV is a broadcast channel (normally obtained from the satellites), mainly in the formats of MPEG2/MPEG4 the transport network provider, and then view on a computer or special set-top box (Set-Top Box).Some providers use encryption flow to certain channels could be viewed only through the set-top box using an ID card or PIN code, a stream of player can not play. If the provider is selling a service only in conjunction with the prefix and encrypts channels, the player you will also be useless.Features:- Easy and rapid deployment of the network provider- Show open (unencrypted) flows http, udp-multicast, etc.