Halosterols A and B, Chymotrypsin Inhibitory Sterols from Haloxylon recurvum
نویسندگان
چکیده
منابع مشابه
Specificity of chymotrypsin B.
Brown, Shupe, and Laskowski (1) have described the isolation, from beef pancreas, of a crystalline proteolytic enzyme which they have named “activated protein B” or “chymotrypsin B.” Through the kindness of Dr. Laskowski who provided us with a 4 times recrystallized sample of this enzyme, it was possible to examine its action on a series of synthetic peptides and peptide derivatives. The data p...
متن کاملTryptophan and Sterols from Salvia limbata
Background: Salvia limbata is an aromatic herbaceous plant and grows widely in Iran Turkey and Afghanistan. In the previous study, six flavones together with rosmarinic acid were isolated from the ethyl acetate and methanol extracts of S. limbata. In this report, we focused on the isolation and identification of the glycosylated sterols and the main accumulated amino acid of the species S. limb...
متن کاملCrystalline activated protein B (chymotrypsin B).
The protein isolated from beef pancreas (1) was recently identified as the zymogen of a proteolytic enzyme and provisionally called protein B (2). In this paper a method of crystallization of the activated enzyme is described. Further properties of this enzyme have been studied, suggesting that the activated protein B belongs to the group of chymotrypsins. The strongest evidence for this conclu...
متن کاملErgostane-Type Sterols from King Trumpet Mushroom (Pleurotus eryngii) and Their Inhibitory Effects on Aromatase
Two new ergostane-type sterols; (22E)-5α,6α-epoxyergosta-8,14,22-triene-3β,7β-diol (1) and 5α,6α-epoxyergost-8(14)-ene-3β,7α-diol (2) were isolated from the fruiting bodies of king trumpet mushroom (Pleurotus eryngii), along with eight known compounds (3-10). All isolated compounds were evaluated for their inhibitory effects on aromatase. Among them, 4 and 6 exhibited comparable aromatase inhib...
متن کاملtryptophan and sterols from salvia limbata
background: salvia limbata is an aromatic herbaceous plant and grows widely in iran turkey and afghanistan. in the previous study, six flavones together with rosmarinic acid were isolated from the ethyl acetate and methanol extracts of s. limbata. in this report, we focused on the isolation and identification of the glycosylated sterols and the main accumulated amino acid of the species s. limb...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 2006
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.54.623