CA19-9

Also known as CA 19-9, carbohydrate antigen 19-9, cancer antigen 19-9, sialylated Lewis (a) antigen, Carbohydrate antigen 19-9, CA-19-9 Antigen, alpha-Neu5Ac-(2->3)-beta-D-Gal-(1->3)-[alpha-L-Fuc-(1->4)]-D-GlcNAc, NeuAcalpha2,3Galbeta1-3[Fucalpha1-4]GlcNAc

Carbohydrate antigen 19-9 (CA19-9), also known as sialyl-LewisA, is a tetrasaccharide which is usually attached to O-glycans on the surface of cells. It is known to play a role in cell-to-cell recognition processes. It is also a tumor marker used primarily in the management of pancreatic cancer.

Research

9,811 papers

CA19-9 and CEA biosensors in pancreatic cancer.Clinica chimica acta; international journal of clinical chemistry · 2024
CA 19-9: Biochemical and Clinical Aspects.Advances in experimental medicine and biology · 2015
Monitoring Ca19-9 during pancreatic cyst surveillance: Better safe than sorry?United European gastroenterology journal · 2023
CA19-9: the Italian experience.Pancreas · 1994
[CA19-9: more than just a biomarker?].Zeitschrift fur Gastroenterologie · 2020

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Wikidata facts

Mass: 820.296

Show 3 more facts

isomeric SMILES: C[C@H]1[C@H]([C@H]([C@@H]([C@@H](O1)O[C@@H]2[C@H](OC([C@@H]([C@H]2O[C@H]3[C@@H]([C@H]([C@H]([C@H](O3)CO)O)O[C@@]4(C[C@@H]([C@H]([C@@H](O4)[C@@H]([C@@H](CO)O)O)NC(=O)C)O)C(=O)O)O)NC(=O)C)O)CO)O)O)O
canonical SMILES: CC1C(C(C(C(O1)OC2C(OC(C(C2OC3C(C(C(C(O3)CO)O)OC4(CC(C(C(O4)C(C(CO)O)O)NC(=O)C)O)C(=O)O)O)NC(=O)C)O)CO)O)O)O
chemical formula: C₃₁H₅₂N₂O₂₃

Sources (3)

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