Page last updated: 2024-10-06

L-cysteine biosynthesis III (from L-homocysteine)

Proteins (3)

ProteinSynonymsTaxonomy
Cystathionine beta-synthaseEC 4.2.1.22; Beta-thionase; Serine sulfhydraseHomo sapiens (human)
Cystathionine beta-synthaseEC 4.2.1.22; Beta-thionase; Hemoprotein H-450; Serine sulfhydraseRattus norvegicus (Norway rat)
Cystathionine gamma-lyaseEC 4.4.1.1; Cysteine-protein sulfhydrase; Gamma-cystathionase; Probasin-related antigen; PRB-RARattus norvegicus (Norway rat)

Compounds (12)

CompoundDescription
hydronium ion
Ammonium
MercuryA silver metallic element that exists as a liquid at room temperature. It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents. It can be absorbed through the skin and mucous membranes which leads to MERCURY POISONING. Because of its toxicity, the clinical use of mercury and mercurials is diminishing.
CopperA heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55.
WaterA clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
CadmiumAn element with atomic symbol Cd, atomic number 48, and atomic weight 112.41. It is a metal and ingestion will lead to CADMIUM POISONING.
2-ketobutyrate
ethylmaleimideA sulfhydryl reagent that is widely used in experimental biochemical studies.
CysteineA thiol-containing non-essential amino acid that is oxidized to form CYSTINE.
hydroxylamineA colorless inorganic compound (HONH2) used in organic synthesis and as a reducing agent, due to its ability to donate nitric oxide.
s-adenosylmethioninePhysiologic methyl radical donor involved in enzymatic transmethylation reactions and present in all living organisms. It possesses anti-inflammatory activity and has been used in treatment of chronic liver disease. (From Merck, 11th ed)
2-iodosobenzoic acid