homotetramer
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Magnesium transporters — This page links directly from the magnesium in biological systems page. All forms of life require magnesium, and yet the molecular mechanisms of Mg2+ uptake from the environment and the distribution (transport) of this vital element within the… … Wikipedia
PFKL — Phosphofructokinase, liver, also known as PFKL, is a human gene.cite web | title = Entrez Gene: PFKL phosphofructokinase, liver| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=5211| accessdate = ] PBB… … Wikipedia
Hemoglobin — The oxygen carrying pigment and predominant protein in the red blood cells. Hemoglobin forms an unstable, reversible bond with oxygen. In its oxygenated state it is called oxyhemoglobin and is bright red. In the reduced state it is called… … Medical dictionary
Magnesium transporter — This page links directly from the magnesium in biological systems page. Magnesium transporters are proteins that transport magnesium across the cell membrane. All forms of life require magnesium, yet the molecular mechanisms of Mg2+ uptake from… … Wikipedia
Superoxide dismutase — For other senses of the term SOD/Sod, see Sod (disambiguation). Superoxide dismutase Structure of a human Mn superoxide dismutase 2 tetramer.[1] … Wikipedia
Dihydrofolate reductase — Ribbon diagram of human dihydrofolate reductase in complex with folate (blue). From PDB 1DRF … Wikipedia
Magnesium in biology — Magnesium is an essential element in biological systems. Magnesium occurs typically as the Mg2+ ion. It is an essential mineral nutrient for life[1][2][3] and is present in every cell type in every organism. For example, ATP (adenosine… … Wikipedia
Transthyretin — (TTR) is a serum and cerebrospinal fluid carrier of the thyroid hormone thyroxine (T4). TTR was originally called prealbumin [MeshName|Prealbumin] because it ran faster than albumins on electrophoresis gels.Binding affinitiesIt functions in… … Wikipedia
Protein structure — Proteins are an important class of biological macromolecules present in all biological organisms, made up of such elements as carbon, hydrogen, nitrogen, phosphorus, oxygen, and sulfur. All proteins are polymers of amino acids. The polymers, also … Wikipedia
Potassium channel — Top view of potassium ions (purple) moving through potassium channel (PDB 1BL8) In the field of cell biology, potassium channels are the most widely distributed type of ion channel and are found in virtually all living organisms … Wikipedia
