The single most important energy source in biological systems; the energy currency of the cell. All cells do work that require energy. Work can be mechanical,biosynthetic,active transport of molecules into and out of cells and cellular compartments (See A...[继续阅读]

    This is a DNA-containing virus whose outer protein coat is in the shape of an icosahedron. There are more than 40 different types of adenoviruses,some of which are among the many viruses that are responsible for the common cold.一种含DNA的病毒,其蛋白质外壳呈20面体。有超过40...[继续阅读]

    An enzyme that catalyzes the synthesis of cyclic AMP from ATP . See ADENOSINE MONOPHOSPHATE ; CYCLIC AMP; and ADENOSINE TRIPHOSPHATE.一种催化ATP生成cAMP 的酶。参阅 adenosine monophosphate,cyclic AMP和adenosine triphosphate。...[继续阅读]

    Junctional complexes that occur at (and anchor) the termini of actin (See ACTIN) cytoskeletal (See CYTOSKELETON) elements. Adherens junctions bear a similarity to desmosomes (See DESMOSOME) and hemidesmosomes (See HEMIDESMOSOME) in that adherens junctiona...[继续阅读]

    A type of cell-cell junction that is a highly specialized region of the cell’s surface. It is also called a desmosome.Adherent junctions are commonly found in tissues that are subjected to mechanical stress such as the skin. They provide very tight contac...[继续阅读]

    One of specialized regions of the plasma membrane that are involved in the adherence of cells to solid surfaces. Bundles of actin microfilaments called stress fibers attach to the plasma membrane in adhesion plaques. The protein vinculin is localized in a...[继续阅读]

    A yeast-transcription termination signal that is incorporated into yeast expression vectors so that cloned yeast genes will form properly terminated mRNA to ensure high amounts of protein expressed. In many cases,mRNA that is not properly terminated is un...[继续阅读]

    A substance that increases the potency of an immunogen or enhances the ability of a weak antigen to induce an antibody response.一种可以提高免疫原活性或增强弱抗原诱导抗体产生能力的化学物质。...[继续阅读]

    One of the several forms that a double helix can assume under different conditions in vivo or in vitro. The molecular characteristics of this helix type differ from the more common B form that is be lieved to be predominant under physiological conditions....[继续阅读]

    Pertaining to the general class of neurons that utilizes catecholamines (adrenaline,dopamine,and noradrenaline) as a neurotransmitter. See NEUROTRANSMITTER.与一类利用儿茶酚胺类物质(肾上腺素、多巴胺、去甲肾上腺素)作为神经递质的神经元有关。参阅neurotransmitter。...[继续阅读]