Repositioning Candidate Details
| Candidate ID: | R0046 |
| Source ID: | DB00138 |
| Source Type: | approved; nutraceutical |
| Compound Type: | small molecule |
| Compound Name: | Cystine |
| Synonyms: | (R,R)-3,3'-dithiobis(2-aminopropanoic acid); Cystine; L-alpha-Diamino-beta-dithiolactic acid; L-Cystine; L-Dicysteine; β,β'-dithiodialanine |
| Molecular Formula: | C6H12N2O4S2 |
| SMILES: | N[C@@H](CSSC[C@H](N)C(O)=O)C(O)=O |
| Structure: |
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| DrugBank Description: | A covalently linked dimeric nonessential amino acid formed by the oxidation of cysteine. Two molecules of cysteine are joined together by a disulfide bridge to form cystine. |
| CAS Number: | 56-89-3 |
| Molecular Weight: | 240.3 |
| DrugBank Indication: | It has been claimed that L-cysteine has anti-inflammatory properties, that it can protect against various toxins, and that it might be helpful in osteoarthritis and rheumatoid arthritis. More research will have to be done before L-cysteine can be indicated for any of these conditions. Research to date has mostly been in animal models. |
| DrugBank Pharmacology: | L-Cystine is a covalently linked dimeric nonessential amino acid formed by the oxidation of cysteine. Two molecules of cysteine are joined together by a disulfide bridge to form cystine. Cystine is a chemical substance which naturally occurs as a deposit in the urine, and can form a calculus (hard mineral formation) when deposited in the kidney. The compound produced when two cysteine molecules linked by a disulfide (S-S) bond. Cystine is required for proper vitamin B6 utilization and is also helpful in the healing of burns and wounds, breaking down mucus deposits in illnesses such as bronchitis as well as cystic fibrosis. Cysteine also assists in the supply of insulin to the pancreas, which is needed for the assimilation of sugars and starches. It increases the level of glutathione in the lungs, liver, kidneys and bone marrow, and this may have an anti-aging effect on the body by reducing age-spots etc. |
| DrugBank MoA: | Certain conditions, e.g. an acetaminophen overdose, deplete hepatic glutathione and subject the tissues to oxidative stress resulting in loss of cellular integrity. L-Cystine serves as a major precursor for synthesis of glutathione. |
| Targets: | Cystine/glutamate transporter; Cystinosin |
| Inclusion Criteria: | Therapeutic strategy associated |
| Strategy ID | Strategy | Synonyms | Related Targets | Related Drugs | |
|---|---|---|---|---|---|
| S03 | Anti-fibrosis | fibrosis | Angiotensin Receptor Blocker (ARB); CCR2/CCR5 antagonist; Thyroid receptor β agonist; PEGylated human FGF21 analogue; Monoclonal antibody to lysyl oxidase-like 2 (LOXL2); Galectin-3 inhibitor; FGF19 variant | Losartan; Cenicriviroc; VK-2809; MGL-3196; Pegbelfermin; Simtuzumab; GR-MD-02; NGM282 | Details |
| S04 | Anti-oxidative stress | oxidative stress | α-tocopherol: antioxidant | Vitamin E | Details |
| S05 | Anti-inflammatory | inflammatory | Bile acid; TNF-a inhibitor; Dual PPAR-α and -δ agonists; Toll-Like Receptor; (TLR)-4 antagonist; Caspase inhibitor; ASK-1 inhibitor | Ursodeoxycholic Acid; Pentoxifylline; Elafibranor; JKB-121; Emricasan; Selonsertib; | Details |
| Target ID | Target Name | GENE | Action | Class | UniProtKB ID | Entry Name |
|---|
| Diseases ID | DO ID | Disease Name | Definition | Class | |
|---|---|---|---|---|---|
| I15 | 1290 | Bone disease | A connective tissue disease that affects the structure or development of bone or causes an impairment of normal bone function. http://en.wikipedia.org/wiki/Bone_disease | disease of anatomical entity/ musculoskeletal system disease/connective tissue disease | Details |