Studies of Porins
نویسندگان
چکیده
منابع مشابه
postnatal studies of bats (pipistrellus kuhlii and miniopterus schreibersii) & histomorphology and histochemistry studies of organs and diseases of (neurergus microspilotus and n. kaiseri)
1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...
Structure-Function Study Of Porins
Single channel current-voltage (IV) relations were measured from proteins that form channels across the outer membranes of Gram-negative bacteria – porins and their mutants in solutions of KCl. The wild-type porins and some of their specific mutants have known x-rays structures, which lays the foundation for this theoretical work. The ionic strength of KCl ranges from 100mM to 3M. Using the alr...
متن کاملSolute uptake through general porins.
General diffusion porins are among the few membrane proteins that have been thoroughly investigated by many techniques, including X-ray crystallography, AFM microscopy, computer modeling, electrophysiology and biochemistry. This had led to a good understanding of the process of solute transport per se. However, other aspects of porin function remain enigmatic, such as the molecular basis and ph...
متن کاملPorins increase copper susceptibility of Mycobacterium tuberculosis.
Copper resistance mechanisms are crucial for many pathogenic bacteria, including Mycobacterium tuberculosis, during infection because the innate immune system utilizes copper ions to kill bacterial intruders. Despite several studies detailing responses of mycobacteria to copper, the pathways by which copper ions cross the mycobacterial cell envelope are unknown. Deletion of porin genes in Mycob...
متن کاملInflammatory effects of Salmonella typhimurium porins.
The inflammatory activity of porins purified from Salmonella typhimurium has been investigated. Porins (0.3 to 30 micrograms) injected into the rat paw induced a dose-related edema that was not due to lipopolysaccharide contamination and did not appear to be dependent on the activation of the complement system. The edema induced by 30 micrograms of porins was comparable to that caused by 1 mg o...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 1984
ISSN: 0006-3495
DOI: 10.1016/s0006-3495(84)84127-2