Biomaterial Database

The role of mannose-binding proteins in host defense. 1992

M Super, and R A Ezekowitz

Harvard Department of Pediatrics, Children's Hospital, Boston, MA 02115.

The human mannose-binding protein (MBP) appears to function as an "ante-antibody" as its physiological role is in first line host defense. Low baseline serum levels are rapidly increased as part of the acute phase reactant and circulating MBP can act as a direct opsonin or activate the classical alternative complement pathway. MBP appears to selectively recognize an array of apparently disparate oligosaccharides that decorate gram-negative and gram-positive bacteria as well as certain parasites, yeasts, and fungi. MBP may be considered a "pattern" recognition molecule that has homologs in primitive life forms. Its ability to distinguish self from nonself indicates that it may play an important role in innate immunity.

UI	MeSH Term	Description	Entries
D007109	Immunity	Nonsusceptibility to the invasive or pathogenic effects of foreign microorganisms or to the toxic effect of antigenic substances.	Immune Process,Immune Response,Immune Processes,Immune Responses,Process, Immune,Response, Immune
D008358	Mannose	A hexose or fermentable monosaccharide and isomer of glucose from manna, the ash Fraxinus ornus and related plants. (From Grant & Hackh's Chemical Dictionary, 5th ed & Random House Unabridged Dictionary, 2d ed)	D-Mannose,Mannopyranose,Mannopyranoside,D Mannose
D008969	Molecular Sequence Data	Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.	Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D002352	Carrier Proteins	Proteins that bind or transport specific substances in the blood, within the cell, or across cell membranes.	Binding Proteins,Carrier Protein,Transport Protein,Transport Proteins,Binding Protein,Protein, Carrier,Proteins, Carrier
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000595	Amino Acid Sequence	The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.	Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
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
D037241	Mannose-Binding Lectins	A subclass of lectins that are specific for CARBOHYDRATES that contain MANNOSE.	Mannose-Specific Lectin,Lectin, Mannose-Specific,Lectins, Mannose-Binding,Mannose Binding Lectins,Mannose Specific Lectin