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Cysteine metabolism
[[Biochemistry]] ====See Also==== * [[Cysteine]] ====Description==== '''Cysteine metabolism''' is comprised . . . the biological pathways that consume or create [[cysteine]]. The pathways of different amino acids and . . . complex systems. ====Discussion==== =====Human cysteine metabolism===== In human cysteine metabolism, . . . L-cysteine is consumed in several ways as shown below. . . . L-cysteine is also consumed in [[methionine]] and [[glutathione]] . . .
3K - last updated 2006-08-20 06:10 UTC by TomGreenfield
Cystine
[[Biochemistry]] ====See Also==== * [[Cysteine]] ====Description==== Cystine is an organic compound described . . . -249 °C. It forms upon oxidation of a pair of cysteine molecules. It was discovered in 1810 by William . . . readily reduced to give the corresponding thiol, cysteine. This reaction is typically effected with . . . North American diets, but the availability of cysteine makes it be the rate-limiting substrate for . . . body. It is the sulfhydryl (thiol) group (SH) of cysteine that serves as proton-donor and is responsible . . .
4K - last updated 2007-08-20 01:44 UTC by AlanGoldenberg
G-protein-coupled receptors
[[Biochemistry]] ====See Also==== * [[Ligand]] * [[Receptor]] * [[Receptor antagonist]] * [[Second messengers]] . . . loops also contain two highly conserved cysteine residues which build disulfide bonds to stabilize . . .
10K - last updated 2006-07-08 10:41 UTC by PeterDAdamo
Methylenetetrahydrofolate reductase (MTHFR) polymorphism
[[Polymorphism]] ====See Also==== * [[Mutation]] * [[Thymidylate synthase (TS) polymorphism]] * [[5,10-methylenetetrahydrofolate . . . process that converts the amino acid homocysteine to another amino acid, methionine. The body . . . MTHFR gene. This variant does not metabolize homocysteine as well as the normal MTHFR enzyme, and blood . . . homocysteine levels in individuals with this variant enzyme . . . [[Polymorphism]]s have been linked to hyperhomocysteinemia (high blood homocysteine levels). Various . . .
5K - last updated 2006-05-26 06:58 UTC by AlanGoldenberg
Mucosal Immune Response
[[Immunology]] ====Description==== <div class="quote"> [http://www.dadamo.com/knowbase/immunity/immunity5.htm . . . in part of antibodies lining the GI tract. Cysteine residues have recently been shown to predominate . . .
2K - last updated 2006-04-17 19:17 UTC by dhcp64-134-129-168.wbt.phx.wayport.net
Natural Killer (NK) Cells
[[Immunology]] ====See Also==== * [[T lymphocyte]] * [[Cell mediated immunity]] * [[Cytokines]] ====Definition==== . . . viral hepatitis. ({{Droge W, Holm E. Role of cysteine and glutathione in HIV infection and other . . .
8K - last updated 2006-05-03 21:02 UTC by PeterDAdamo
Serpins
[[Physiology]] ====See Also==== * [[Alpha 1-antitrypsin (A1AT)]] * [[Serine proteases]] * [[Serum pepsinogen . . . antigen 1 (SCCA1), have been shown to inhibit cysteine proteases using the same mechanism as other . . . serpins use to inhibit serine proteases. Cysteine proteases differ from serine proteases in . . . that they are defined by the presence of a cysteine residue, rather than a serine residue, in . . .
6K - last updated 2006-05-27 15:23 UTC by TomGreenfield
Sodium dodecyl sulfate polyacrylamide gel electrophoresis
[[Biochemistry]] ====See Also==== * [[Gel electrophoresis]] ====Description==== Sodium Dodecyl Sulfate . . . pHs promote disulfide bond formation between cysteine residues in the proteins, especially when . . . at high concentrations because the pKa of cysteine ranges from 8-9 and because reducing agent . . . the proteins at a pH well below the pKa of cysteine (e.g., bis-Tris, pH 6.5) and include reducing . . .
6K - last updated 2006-05-01 11:58 UTC by PeterDAdamo
Ubiquitin
[[Genomics]] ====See Also==== * [[Proteasome]] * [[RNA]] * [[Translation (RNA translation)]] ====Description==== . . . step transfers ubiquitin to the E1 active site cysteine residue, with release of AMP. This step results . . . carboxyl group of ubiquitin and the E1 cysteine sulfhydryl group. # Transfer of ubiquitin . . . from E1 to the active site cysteine of an ubiquitin-conjugating enzyme E2 via . . .
7K - last updated 2006-07-07 11:47 UTC by PeterDAdamo
Von Willebrand factor (vWF)
[[Biochemistry]] ====See Also==== * [[Factor VIII]] * [[Clotting factors]] ====Description==== <b>Von . . . when this is activated * the "cysteine knot" domain (at the C-terminal end of the . . . in the Golgi apparatus by crosslinking of cysteine residues via disulfide bonds. With respect . . .
6K - last updated 2007-05-29 03:53 UTC by AlanGoldenberg
What's New
<table><tr><td> http://www.dadamo.com/wiki/coral-sm.jpg </td><td>Articles . . . added===== ---- <aggregate "Cystine" "Cysteine" "Histidine" "Valine" "Aspartic acid" "Lysine" . . . "Asparagine" "Arginine" "Homeobox (Hox) Gene" "Cysteine metabolism" "Functome" "Alanine" "Serine" . . .
2K - last updated 2007-08-20 01:47 UTC by AlanGoldenberg
11 pages found.