Document 0559 DOCN M9480559 TI Luffin-S--a small novel ribosome-inactivating protein from Luffa cylindrica. Characterization and mechanism studies. DT 9410 AU Gao W; Ling J; Zhong X; Liu W; Zhang R; Yang H; Cao H; Zhang Z; Shanghai Institute of Biochemistry, Academia Sinica, P.R. China. SO FEBS Lett. 1994 Jun 27;347(2-3):257-60. Unique Identifier : AIDSLINE MED/94307395 AB We purified and characterized a novel RIP (ribosome inactivating protein), Luffin-S from the seeds of Luffa cylindrica. Different from Luffin-A and B, which are RNA N-glycosidases with molecular weights of 27 and 28 kDa, respectively, Luffin-S has an M.W. of only approx. 10 kDa, much smaller than any other RIPs so far investigated. Its abundant resources, toxicity similar to TCS in a cell-free protein synthesis system and unique mechanism as phosphodiesterase, like alpha-sarcin, promisingly make it a potential toxic moiety of immunotoxin. DE Amino Acids/ANALYSIS Animal Cell-Free System Comparative Study Drug Stability Electrophoresis, Polyacrylamide Gel Fungal Proteins/ANALYSIS/METABOLISM Heat HIV-1/DRUG EFFECTS Molecular Weight Phosphoric Diester Hydrolases/*ISOLATION & PURIF/METABOLISM/ PHARMACOLOGY Plant Proteins/*ISOLATION & PURIF/METABOLISM/PHARMACOLOGY Protein Synthesis Inhibitors Rabbits Ribonuclease, Pancreatic/ANALYSIS/METABOLISM Ribosomes/*DRUG EFFECTS RNA, Ribosomal/METABOLISM Seeds/*CHEMISTRY JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).