• phosphate
  • Therefore, Neufeld suggested that I-cell disease was caused by a deficiency in the enzymes that add a specific mannose 6-phosphate tag onto lysosomal enzymes so they can be targeted to the lysosome. (wikipedia.org)
  • Once the enzyme has dissociated from the mannose 6-phosphate receptor, it is translocated from the endosome to the lysosome where the phosphate tag is removed from the enzyme. (wikipedia.org)
  • mitochondria
  • Importantly, the endomembrane system does not include the membranes of chloroplasts or mitochondria, but might have evolved from the latter (see below: Evolution). (wikipedia.org)
  • hexosaminidase
  • For example, the fatal Tay-Sachs disease arises as a genetic defect which leads to no functional hexosaminidase A produced, causing GM2 to accumulate in lysosomes. (wikipedia.org)
  • bacterial
  • Helicobacter pylori Cag type IV secretion system (Cag-T4SS) is a multi-component transporter of oncoprotein CagA across the bacterial membranes into the host epithelial cells. (jove.com)
  • Translocation of CagA across the bacterial membranes to cell surface is CagI-independent process. (jove.com)
  • surfaces
  • For example, A,B, and O blood group antigens give rise to the various blood types and these arise from carbohydrates on their cell surfaces. (oregonstate.edu)
  • Since water is a polar molecule with partial positive charges on both hydrogen atoms, it is attracted to cell surfaces and membranes. (wikipedia.org)
  • molecules
  • The best studied example of carbohydrate-based cell adhesion is the initiation of extravasation resulting from binding of moving leukocytes to endothelial cells, which is mediated by selectin cell adhesion molecules. (searlescholars.net)
  • These pores are about 120 nm in diameter and regulate the passage of molecules between the nucleus and cytoplasm, permitting some to pass through the membrane, but not others. (wikipedia.org)
  • According to this model, the cell membrane consists of a highly viscous fluid matrix of two layers of phospholipid molecules. (studyadda.com)
  • The cell membrane separates the cell from the external environment, taking in those molecules that the cell requires and expelling those that need to be removed, without wasting any time. (evolutiondeceit.com)
  • Recognition
  • In many cases, the saccharide-binding activity of this group of lectins can be ascribed to discrete calcium-dependent carbohydrate-recognition domains (C-type CRDs). (searlescholars.net)
  • Lectins perform recognition on the cellular and molecular level and play numerous roles in biological recognition phenomena involving cells, carbohydrates, and proteins. (wikipedia.org)
  • complex
  • Basically, the membrane is a border protecting the cell from the outside, but it also possesses very many complex features and duties that scientists have still not discovered. (evolutiondeceit.com)
  • But the selection in the cell membrane is not fixed and mechanical, but is a very complex process that alters in accordance with conditions. (evolutiondeceit.com)
  • cells
  • The first proposal that the membranes within cells form a single system that exchanges material between its components was by Morré and Mollenhauer in 1974. (wikipedia.org)
  • The fact that such an important security system is performed by the membranes in trillions of cells is an example of Allah's compassion for human beings. (evolutiondeceit.com)