membrane attack complex

membrane attack complex

Dictionary of molecular biology. 2004.

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  • membrane attack complex — (MAC) The complex complement components (C5b C9) that create a pore in the plasma membrane of a target cell and leads to cell lysis. C9 probably forms most of the actual pore …   Dictionary of microbiology

  • Membrane attack complex — An abnormal activation of the complement (protein) portion of the blood, forming a cascade reaction that brings blood proteins together, binds them to the cell wall, and then inserts them through the cell membrane. MAC formation allows water,… …   Medical dictionary

  • Complement membrane attack complex — A membrane attack complex attached to a pathogenic cell. The membrane attack complex (MAC) is typically formed on the surface of intruding pathogenic bacterial cells as a result of the activation of the alternative pathway of the complement… …   Wikipedia

  • membrane attack complex inhibitor — former name for S protein; see vitronectin …   Medical dictionary

  • complex — 1. An organized constellation of feelings, thoughts, perceptions, and memories that may be in part unconscious and may strongly influence associations and attitudes. 2. In chemistry, the relatively stable combination of two or more compounds into …   Medical dictionary

  • C8 complex — High Resolution Crystal Structure of Human Complement Component 8 complement component 8, alpha polypeptide Identifiers Symbol …   Wikipedia

  • Pyruvate dehydrogenase complex — (PDC) is a complex of three enzymes that transform pyruvate into acetyl CoA by a process called pyruvate decarboxylation. Acetyl CoA may then be used in the citric acid cycle to carry out cellular respiration, and this complex links the… …   Wikipedia

  • MAC — (= membrane attack complex.) See complement and C9 …   Dictionary of molecular biology

  • immune system — Anat. a diffuse, complex network of interacting cells, cell products, and cell forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris: the system… …   Universalium

  • Complement system — This article is about an aspect of the immune system. For other uses, see complement (disambiguation). The complement system helps or “complements” the ability of antibodies and phagocytic cells to clear pathogens from an organism. It is part of… …   Wikipedia

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