Cysteine and methionine metabolism
| PAG Title | Cysteine and methionine metabolism |
| PAG ID | WIG000500 |
| Type | P |
| Source Link |  MSigDB |
| Publication Reference | NA |
| PAG Description | Cysteine and methionine are sulfur-containing amino acids. Cysteine is synthesized from serine through different pathways in different organism groups. In bacteria and plants, cysteine is converted from serine (via acetylserine) by transfer of hydrogen sulfide. In animals, methionine-derived homocysteine is used as sulfur source and its condensation product with serine (cystathionine) is converted to cysteine. Cysteine is metabolized to pyruvate in multiple routes. Methionine is an essential amino acid, which animals cannot synthesize. In bacteria and plants, methionine is synthesized from aspartate. S-Adenosylmethionine (SAM), synthesized from methionine and ATP, is a methyl group donor in many important transfer reactions including DNA methylation for regulation of gene expression. SAM may also be used to regenerate methionine in the methionine salvage pathway. |
| Species | Homo sapiens |
| Quality Metric Scores | nCoCo Score: 1,190 |
| Information Content | Rich |
| Other IDs | M10911 |
| Base PAG ID | WIG000500 |
| Human Phenotyte Annotation | |
| Curator | PAGER curation team |
| Curator Contact | PAGER-contact@googlegroups.com |
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