Recombinant Human Cystathionine gamma-lyase (CTH)

Uniprot Id

P32929

Target Species

Human

Target Name

CTH

Target Full Name

Cystathionine gamma-lyase

Target Function

Catalyzes the last step in the trans-sulfuration pathway from methionine to cysteine. Has broad substrate specificity. Converts cystathionine to cysteine, ammonia and 2-oxobutanoate. Converts two cysteine molecules to lanthionine and hydrogen sulfide. Can also accept homocysteine as substrate. Specificity depends on the levels of the endogenous substrates. Generates the endogenous signaling molecule hydrogen sulfide (H2S), and so contributes to the regulation of blood pressure. Acts as a cysteine-protein sulfhydrase by mediating sulfhydration of target proteins: sulfhydration consists of converting -SH groups into -SSH on specific cysteine residues of target proteins such as GAPDH, PTPN1 and NF-kappa-B subunit RELA, thereby regulating their function.

Target Involvement

Cystathioninuria (CSTNU)

Target Subcellular Location

Cytoplasm.

Target Protein Families

Trans-sulfuration enzymes family

Target Synonyms

CGL_HUMAN; CTH; cystathionase (cystathionine gamma-lyase); Cystathionine gamma lyase; Cystathionine gamma-lyase; Cysteine desulfhydrase; Gamma cystathionase; Gamma-cystathionase; Homoserine deaminase; Homoserine dehydratase; MGC9471

Target Background

This gene encodes a cytoplasmic enzyme in the trans-sulfuration pathway that converts cystathione derived from methionine into cysteine. Glutathione synthesis in the liver is dependent upon the availability of cysteine. Mutations in this gene cause cystathioninuria. Alternative splicing of this gene results in three transcript variants encoding different isoforms.