| capping | 1. Movement of cross linked cell surface material to the posterior region of a moving cell or to the perinuclear region. 2. The intracellular accumulation of intermediate filament protein in the pericentriolar region following microtubule disruption by colchicine. 3. The blocking of further addition of subunits by binding of a cap protein to the free end of a linear polymer such as actin. See: cap binding protein. (18 Nov 1997) |
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| capping of mRNA | The process of adding a guanosine nucleotide to the 5'-end (the beginning) of an eukaryotic mRNA, then methylating (adding a -CH3 to) the guanosine. (09 Oct 1997) |
| capping proteins | Proteins that bind to one end of actin filaments, preventing both addition and loss of actin monomers. (05 Mar 2000) |
| dental pulp capping | Application of a protective agent to an exposed pulp (direct capping) or the remaining thin layer of dentin over a nearly exposed pulp (indirect capping) in order to allow the pulp to recover and maintain its normal vitality and function. (12 Dec 1998) |
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| direct pulp capping | A procedure for covering and protecting an exposed vital pulp. (05 Mar 2000) |
| immunologic capping | The process by which lymphoid cell surface immunoglobulin receptors, when exposed to bivalent anti-ig antibodies, collect in patches and form a cap at one pole of the cell. The caps may then be endocytosed or shed into the environment in the form of antigen-antibody complexes. Capping has also been induced by lectins and antigens. (12 Dec 1998) |
| indirect pulp capping | The application of a suspension of calcium hydroxide to a thin layer of dentin overlying the pulp (near exposure) in order to stimulate secondary dentin formation and protect the pulp. (05 Mar 2000) |