Identification
BMDB Protein ID BMDBP00818
Secondary Accession Numbers None
Name Cystathionine gamma-lyase
Synonyms Not Available
Gene Name CTH
Protein Type Enzyme
Biological Properties
General Function Amino acid transport and metabolism
Specific 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 (By similarity).
Pathways
  • Amino-acid biosynthesis
  • Cysteine Metabolism
  • Glycine and Serine Metabolism
  • Homocysteine Degradation
  • L-cysteine biosynthesis
  • L-cysteine from L-homocysteine and L-serine: step 2/2
  • Methionine Metabolism
  • Selenoamino Acid Metabolism
Reactions
Selenocystathionine + Water → Selenocysteine + Ammonia + 2-Ketobutyric acid details
L-Cysteine + Water → Hydrogen sulfide + Pyruvic acid + Ammonia details
L-Cystathionine + Water → L-Cysteine + 2-Ketobutyric acid + Ammonia details
L-Cystathionine + Water → L-Cysteine + 2-Ketobutyric acid details
GO Classification Not Available
Cellular Location Not Available
Gene Properties
Chromosome Location 7
Locus Not Available
SNPs CTH
Gene Sequence
>1218 bp
ATGCAGGAAAAAGAAGCCTCCCCACACGGATTCCTGCCTAGGTTCCAGCATTTCGCTACG
CAGGCCATCCACGTGGGCCAAGAACCGGAGCAATGGACCTCCCAAGCTGTAGTGCCCCCT
ATCTCGCTGTCCACCACGTTCAAGCAAGGGGCTCCTGGCCAGCACTCGGGTTTTGAGTAT
AGCCGTTCTGGAAATCCCACCCGGAATTGCTTGGAAAAAGCAGTGGCGGCGCTGGATGGG
GCTAAGTACAGTTTGGCCTTTGCTTCAGGTTTAGCAGCCACTGTGACCATTACCCATCTC
TTAAAAGCAGGAGACCAGATTATTTGTATGGATGATGTGTATGGAGGTACAAACAGGTAC
TTCAGGCAGGTGGCAACTGAATTTGGATTAAAGATTTCTTTTGTTGATTGTTCCAAACCC
AAATTGCTAGAGGCAGCTATTACACCAGAAACCAAGCTTGTTTGGATTGAAACCCCCACA
AACCCTAGCTTGAAGATGATTGACATTGAAGCCTGCGCACATACGGTCCATAAACATGGA
GACATCATTTTGGTTGTGGATAACACTTTTATGTCAGCATATTTCCAGCGGCCTTTGTCT
CTGGGAGCTGATATTTGTATGTATTCAGCAACAAAATACATGAATGGCTACAGTGATGTT
GTAATGGGCTTAGTGTCACTGAATTCTGAGAGCCTTCATGATAGGCTCCGTTTCTTGCAA
AATTCTCTTGGAGCAGTTCCATCTCCTATTGACTGTTACCTCTGCAATCGGGGTCTGAAG
ACTCTACAAGTCCGCATGGAGAAGCATTTCGAAAACGGAATGGCAGTTGCTCAGTTTTTG
GAGTCGAATCCTCAGGTGGAAAAGGTTATTTATCCTGGGCTGCCTTCTCATCCTCAGCAT
GAGCTGGCCAAGCGTCAGTGCACAGGTTGCCCGGGGATGGTCACCTTTTATATCAAGGGC
TCTCTTCAACATGCTGAAACTTTCCTCCAGAACTTAAAGTTATTTACTCTGGCTGAAAGC
TTGGGAGGATACGAAAGTCTTGCTGAGCTTCCGGCAATCATGACCCATGCATCAGTGCCT
AAGAGTGACAGAGAAGTCCTTGGAATTAGTGACACACTTATTCGACTCTCAGTGGGCTTA
GAGGATAAACAAGACCTACTGGATGATCTAGATCAAGCTTTGAAGGCAGCTAACCCTCCA
AATGCAAGTTCCAACTAG
Protein Properties
Number of Residues 405
Molecular Weight 44406.0
Theoretical pI 6.39
Pfam Domain Function Not Available
Signals
  • None
Transmembrane Regions Not Available
Protein Sequence
>Cystathionine gamma-lyase
MQEKEASPHGFLPRFQHFATQAIHVGQEPEQWTSQAVVPPISLSTTFKQGAPGQHSGFEY
SRSGNPTRNCLEKAVAALDGAKYSLAFASGLAATVTITHLLKAGDQIICMDDVYGGTNRY
FRQVATEFGLKISFVDCSKPKLLEAAITPETKLVWIETPTNPSLKMIDIEACAHTVHKHG
DIILVVDNTFMSAYFQRPLSLGADICMYSATKYMNGYSDVVMGLVSLNSESLHDRLRFLQ
NSLGAVPSPIDCYLCNRGLKTLQVRMEKHFENGMAVAQFLESNPQVEKVIYPGLPSHPQH
ELAKRQCTGCPGMVTFYIKGSLQHAETFLQNLKLFTLAESLGGYESLAELPAIMTHASVP
KSDREVLGISDTLIRLSVGLEDKQDLLDDLDQALKAANPPNASSN
GenBank ID Protein AAX46332.1
UniProtKB/Swiss-Prot ID Q58DW2
UniProtKB/Swiss-Prot Entry Name CGL_BOVIN
PDB IDs Not Available
GenBank Gene ID BT021485
GeneCard ID CTH
GenAtlas ID Not Available
HGNC ID Not Available
References
General References Not Available