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Cystadenoma
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D003537 |
[A benign neoplasm derived from glandular epithelium, in which cystic accumulations of retained secretions are formed. In some instances, considerable portions of the neoplasm, or even the entire mass, may be cystic. (Stedman, 25th ed)
] |
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Cystadenoma, Mucinous
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D018291 |
[A multilocular tumor with mucin secreting epithelium. They are most often found in the ovary, but are also found in the pancreas, appendix, and rarely, retroperitoneal and in the urinary bladder. They are considered to have low-grade malignant potential.
] |
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Cystadenoma, Papillary
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D018292 |
[A benign neoplasm of the ovary.
] |
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Cystadenoma, Serous
|
D018293 |
[A cystic tumor of the ovary, containing thin, clear, yellow serous fluid and varying amounts of solid tissue, with a malignant potential several times greater than that of mucinous cystadenoma (CYSTADENOMA, MUCINOUS). It can be unilocular, parvilocular, or multilocular. It is often bilateral and papillary. The cysts may vary greatly in size. (Dorland, 27th ed; from Hughes, Obstetric-Gynecologic Terminology, 1972)
] |
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Cystamine
|
D003538 |
[A radiation-protective agent that interferes with sulfhydryl enzymes. It may also protect against carbon tetrachloride liver damage.
] |
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Cystaphos
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D003539 |
[Proposed as an adjuvant to cancer chemotherapy; may have radiation protective properties.
] |
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Cystathionine
|
D003540 |
[Sulfur-containing amino acid formed as an intermediate in the conversion of METHIONINE to CYSTEINE.
] |
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Cystathionine beta-Synthase
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D003541 |
[A multifunctional pyridoxal phosphate enzyme. In the second stage of cysteine biosynthesis it catalyzes the reaction of homocysteine with serine to form cystathionine with the elimination of water. Deficiency of this enzyme leads to HYPERHOMOCYSTEINEMIA and HOMOCYSTINURIA. EC 4.2.1.22.
] |
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Cystathionine gamma-Lyase
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D003542 |
[A multifunctional pyridoxal phosphate enzyme. In the final step in the biosynthesis of cysteine it catalyzes the cleavage of cystathionine to yield cysteine, ammonia, and 2-ketobutyrate. EC 4.4.1.1.
] |
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Cystatin A
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D055312 |
[A cytastin subtype found at high levels in the SKIN and in BLOOD CELLS. Cystatin A incorporates into the cornified cell envelope of stratified squamous epithelial cells and may play a role in bacteriostatic properties of skin.
] |
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Cystatin B
|
D055313 |
[An intracellular cystatin subtype that is found in a broad variety of cell types. It is a cytosolic enzyme inhibitor that protects the cell against the proteolytic action of lysosomal enzymes such as CATHEPSINS.
] |
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Cystatin C
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D055316 |
[An extracellular cystatin subtype that is abundantly expressed in bodily fluids. It may play a role in the inhibition of interstitial CYSTEINE PROTEASES.
] |
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Cystatin M
|
D055332 |
[A cystatin subtype that has a diverse tissue distribution, target specificity, and functions as an endogenous inhibitor of lysosomal cysteine proteases.
] |
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Cystatins
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D015891 |
[Cystatins that occur primarily as extracellular proteins.
, Cystatins that occur as plasma proteins.
, Cystatins that occur primarily as intracellular proteins.
, A homologous group of endogenous CYSTEINE PROTEINASE INHIBITORS. The cystatins inhibit most CYSTEINE ENDOPEPTIDASES such as PAPAIN, and other peptidases which have a sulfhydryl group at the active site.
] |
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Cysteamine
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D003543 |
[A mercaptoethylamine compound that is endogenously derived from the COENZYME A degradative pathway. The fact that cysteamine is readily transported into LYSOSOMES where it reacts with CYSTINE to form cysteine-cysteamine disulfide and CYSTEINE has led to its use in CYSTINE DEPLETING AGENTS for the treatment of CYSTINOSIS.
] |
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Cystectomy
|
D015653 |
[Used for excision of the urinary bladder.
] |
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Cysteic Acid
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D003544 |
[Beta-Sulfoalanine. An amino acid with a C-terminal sulfonic acid group which has been isolated from human hair oxidized with permanganate. It occurs normally in the outer part of the sheep's fleece, where the wool is exposed to light and weather.
] |
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Cysteine
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D003545 |
[A thiol-containing non-essential amino acid that is oxidized to form CYSTINE.
] |
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Cysteine Dioxygenase
|
D050558 |
[An enzyme that catalyzes the conversion of L-CYSTEINE to 3-sulfinoalanine (3-sulfino-L-alanine) in the CYSTEINE metabolism and TAURINE and hypotaurine metabolic pathways.
] |
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Cysteine Endopeptidases
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D003546 |
[ENDOPEPTIDASES which have a cysteine involved in the catalytic process. This group of enzymes is inactivated by CYSTEINE PROTEINASE INHIBITORS such as CYSTATINS and SULFHYDRYL REAGENTS.
] |
