Names | |
---|---|
IUPAC name
(R)-2-Amino-3-sulfopropanoic acid
| |
Other names
3-Sulfo-l-alanine
| |
Identifiers | |
| |
3D model (
JSmol)
|
|
ChEBI | |
ChemSpider | |
DrugBank | |
ECHA InfoCard | 100.265.539 |
EC Number |
|
MeSH | Cysteic+acid |
PubChem
CID
|
|
UNII |
|
CompTox Dashboard (
EPA)
|
|
| |
| |
Properties [1] | |
C3H7NO5S | |
Molar mass | 169.15 g·mol−1 |
Appearance | White crystals or powder |
Melting point | Decomposes around 272 °C |
Soluble | |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Cysteic acid also known as 3-sulfo-l-alanine is the organic compound with the formula HO3SCH2CH(NH2)CO2H. It is often referred to as cysteate, which near neutral pH takes the form −O3SCH2CH(NH3+)CO2−.
It is an amino acid generated by oxidation of cysteine, whereby a thiol group is fully oxidized to a sulfonic acid/sulfonate group. It is further metabolized via 3-sulfolactate, which converts to pyruvate and sulfite/bisulfite. The enzyme L-cysteate sulfo-lyase catalyzes this conversion. Cysteate is a biosynthetic precursor to taurine in microalgae. [2] By contrast, most taurine in animals is made from cysteine sulfinate. [3]
Names | |
---|---|
IUPAC name
(R)-2-Amino-3-sulfopropanoic acid
| |
Other names
3-Sulfo-l-alanine
| |
Identifiers | |
| |
3D model (
JSmol)
|
|
ChEBI | |
ChemSpider | |
DrugBank | |
ECHA InfoCard | 100.265.539 |
EC Number |
|
MeSH | Cysteic+acid |
PubChem
CID
|
|
UNII |
|
CompTox Dashboard (
EPA)
|
|
| |
| |
Properties [1] | |
C3H7NO5S | |
Molar mass | 169.15 g·mol−1 |
Appearance | White crystals or powder |
Melting point | Decomposes around 272 °C |
Soluble | |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Cysteic acid also known as 3-sulfo-l-alanine is the organic compound with the formula HO3SCH2CH(NH2)CO2H. It is often referred to as cysteate, which near neutral pH takes the form −O3SCH2CH(NH3+)CO2−.
It is an amino acid generated by oxidation of cysteine, whereby a thiol group is fully oxidized to a sulfonic acid/sulfonate group. It is further metabolized via 3-sulfolactate, which converts to pyruvate and sulfite/bisulfite. The enzyme L-cysteate sulfo-lyase catalyzes this conversion. Cysteate is a biosynthetic precursor to taurine in microalgae. [2] By contrast, most taurine in animals is made from cysteine sulfinate. [3]