Membrane Bound Organelle

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Membrane Bound Organelle is an Organized structure of distinctive Morphology and function, bounded by a Single Or Double Lipid Bilayer Membrane and occurring within the Cell. Includes the Nucleus, Mitochondria, Plastids, Vacuoles, and Vesicles.

  • AKA: Biological Membrane.
  • Context:
  • Example(s):
  • Counter-Example(s):
    • PMID 10361306: “The napEDABC locus coding for the periplasmic nitrate reductase of Thiosphaera pantotropha has been cloned and sequenced . The large and small subunits of the enzyme are coded by napA and napB . The sequence of NapA indicates that this protein binds the GMP-conjugated form of the molybdopterin cofactor .Cysteine-181 is proposed to ligate the molybdenum atom .It is inferred that the active site of the periplasmic nitrate reductase is structurally related to those of the molybdenum-dependent formate dehydrogenases and bacterial assimilatory nitrate reductases, but is distinct from that of the membrane-bound respiratory nitrate reductases .”
  • See: Mitochondria, Nucleus.



  • (Wikipedia, 2009) ⇒
    • A biological membrane or biomembrane is an enclosing or separating amphipathic layer that acts as a barrier within or around a cell. It is, almost invariably, a lipid bilayer, composed of a double layer of lipid (usually phospholipid) molecules and proteins that may constitute close to 50% of membrane content. [1]
  • Gene Ontology
    • Accession: GO:0043227
    • Ontology: molecular function
    • Synonyms
      • exact: membrane-enclosed organelle
    • Definition
      • Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane. [source: GOC:go_curators]