Protein Information

Name cystathionine beta synthase
Synonyms Beta CTSase; Beta thionase; CBS; Cystathionine beta synthase; HIP 4; HIP4; L serine hydro lyase; Methylcysteine synthase…

Compound Information

Name sulfur
CAS sulfur

Reference List

PubMed Abstract RScore(About this table)
19889863 Olson KR, Whitfield NL, Bearden SE, St Leger J, Nilson E, Gao Y, Madden JA: Hypoxic pulmonary vasodilation: a paradigm shift with a hydrogen sulfide mechanism. Am J Physiol Regul Integr Comp Physiol. 2010 Jan;298(1):R51-60. Epub 2009 Nov 4.

H (2) S-synthesizing enzymes, cystathionine beta-synthase, cystathionine gamma-lyase, and 3-mercaptopyruvate sulfur transferase, were identified in lung tissue from both animals by one-dimensional Western blot analysis and immunohistochemistry.
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19531479 Singh S, Padovani D, Leslie RA, Chiku T, Banerjee R: Relative contributions of cystathionine beta-synthase and gamma-cystathionase to H2S biogenesis via alternative trans-sulfuration reactions. J Biol Chem. 2009 Aug 14;284(33):22457-66. Epub 2009 Jun 16.

Finally, our studies reveal that the profligacy of the trans-sulfuration pathway results not only in a multiplicity of H2S-yielding reactions but also yields novel thioether metabolites, thus increasing the complexity of the sulfur metabolome.
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20162368 Stipanuk MH, Ueki I: Dealing with methionine/homocysteine sulfur: cysteine metabolism to taurine and inorganic sulfur. J Inherit Metab Dis. 2010 Feb 17.

Transsulfuration is regulated by stimulation of cystathionine beta-synthase and inhibition of methylene tetrahydrofolate reductase in response to changes in the level of S-adenosylmethionine, and this promotes homocysteine degradation when methionine availability is high.
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19956742 Blank HM, Gajjar S, Belyanin A, Polymenis M: Sulfur metabolism actively promotes initiation of cell division in yeast. PLoS One. 2009 Nov 24;4(11):e8018.

METHODOLOGY/PRINCIPAL FINDINGS: Here we show that yeast cells with more mtDNA have an expanded reductive phase of their metabolic cycle and an increased sulfur metabolic flux.
Furthermore, introduction of a hyperactive cystathionine-beta-synthase (CBS) allele in wild type cells accelerates initiation of DNA replication.
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20191298 Kimura H: Hydrogen sulfide: its production, release and functions. . Amino Acids. 2010 Feb 27.

It is produced by three enzymes, cystathionine beta-synthase, cystathionine gamma-lyase and 3-mercaptopyruvate sulfurtransferase along with cysteine aminotransferase.
In addition to an immediate release of H (2) S from producing enzymes, it can be stored as bound sulfane sulfur, which may release H (2) S in response to physiological stimuli.
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