A D-galactose-binding lectin with mitogenic activity from Musca domestica pupae. 2009

Xiaohong Cao, and Dezhi Mao, and Chunling Wang, and Bin Zeng, and Aihua Wang, and Meifang Lu, and Chengjian Xu
Key Laboratory of Food Safety and Sanitation, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin, China.

A lectin with potent mitogenic activity was isolated from Musca domestica pupae. The lectin was a monomer with a molecular weight of 55 kDa. The purification procedure mainly involved affinity chromatography on galactose-Sepharose-4B. The lectin agglutinated trypsin-treated rabbit blood cells. D-galactose was detected to inhibit the lectin's hemagglutination activity. The lectin was metal independent and temperature dependent and was detected by the periodic acid-Shiff reaction to be a glycoprotein with a carbohydrate content of 2.1%. Observations with an atomic force microscope indicated that the lectin was a globular protein about 75 nm in size, with several carbohydrate chains linked to it. It elicited a mitogenic response from mouse splenocytes in vitro, with the maximal response at a concentration of 20 microg/ml. No lectin has been reported before from Musca domestica pupae, and the lectin we discovered could be of great importance in insect immunity and hypoimmune diseases.

UI MeSH Term Description Entries
D008670 Metals Electropositive chemical elements characterized by ductility, malleability, luster, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. (Grant & Hackh's Chemical Dictionary, 5th ed) Metal
D008934 Mitogens Substances that stimulate mitosis and lymphocyte transformation. They include not only substances associated with LECTINS, but also substances from streptococci (associated with streptolysin S) and from strains of alpha-toxin-producing staphylococci. (Stedman, 25th ed) Mitogen,Phytomitogen,Phytomitogens
D011679 Pupa An inactive stage between the larval and adult stages in the life cycle of INSECTA. Chrysalis,Pupae
D005690 Galactose An aldohexose that occurs naturally in the D-form in lactose, cerebrosides, gangliosides, and mucoproteins. Deficiency of galactosyl-1-phosphate uridyltransferase (GALACTOSE-1-PHOSPHATE URIDYL-TRANSFERASE DEFICIENCY DISEASE) causes an error in galactose metabolism called GALACTOSEMIA, resulting in elevations of galactose in the blood. D-Galactose,Galactopyranose,Galactopyranoside,D Galactose
D006384 Hemagglutination The aggregation of ERYTHROCYTES by AGGLUTININS, including antibodies, lectins, and viral proteins (HEMAGGLUTINATION, VIRAL). Hemagglutinations
D006793 Houseflies Flies of the species Musca domestica (family MUSCIDAE), which infest human habitations throughout the world and often act as carriers of pathogenic organisms. Musca domestica,Housefly,Musca domesticas,domesticas, Musca
D006863 Hydrogen-Ion Concentration The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013154 Spleen An encapsulated lymphatic organ through which venous blood filters.
D013696 Temperature The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms. Temperatures

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