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53886

Sigma-Aldrich

Tn Antigen

≥99.0% (TLC), powder or crystals

Synonym(s):

GalNac-α-1-O-serine, O-[2-(Acetylamino)-2-deoxy-α-D-galactopyranosyl]-L-serine

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About This Item

Empirical Formula (Hill Notation):
C11H20N2O8
CAS Number:
67262-86-6
Molecular Weight:
308.29
MDL number:
MFCD01863462
UNSPSC Code:
12352204
PubChem Substance ID:
329758013
NACRES:
NA.32

product name

Tn Antigen, ≥99.0% (TLC)

Assay

≥99.0% (TLC)

form

powder or crystals

storage temp.

−20°C

SMILES string

CC(=O)N[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@@H]1OC[C@H](N)C(O)=O

InChI

1S/C11H20N2O8/c1-4(15)13-7-9(17)8(16)6(2-14)21-11(7)20-3-5(12)10(18)19/h5-9,11,14,16-17H,2-3,12H2,1H3,(H,13,15)(H,18,19)/t5-,6+,7+,8-,9+,11-/m0/s1

InChI key

REDMNGDGDYFZRE-WKWISIMFSA-N

General description

Tn antigen is a truncated O-glycan, that is commonly noticed in colorectal cancer (CRC). It is usually expressed at high levels in cancer cells. Tn antigen is small in size and simple in structure. It has a non-physiological glycan structure in humans, hence it may be identified as foreign by the immune system.

Biochem/physiol Actions

Tn antigen stimulates colorectal cancer metastasis through the activation of epithelial-mesenchymal transition, mediated by H-Ras. It acts as a precursor to several significant complex O-glycans. Subpopulations of blood cells in all lineages carrying the Tn antigen results in a hematological disorder called Tn syndrome.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Catharina Steentoft et al.
Glycobiology, 28(9), 656-669 (2018-01-26)
Cancer immunotherapy is rapidly advancing in the treatment of a variety of hematopoietic cancers, including pediatric acute lymphoblastic leukemia and diffuse large B cell lymphoma, with chimeric antigen receptor (CAR)-T cells. CARs are genetically encoded artificial T cell receptors that
The Tn antigen?structural simplicity and biological complexity
Ju T, et al.
Angewandte Chemie (International Edition in English), 50(8), 1770-1791 (2011)
Xichen Dong et al.
BioMed research international, 2018, 9532389-9532389 (2018-07-24)
Immature truncated O-glycans such as Tn antigen are frequently detected in human colorectal cancer (CRC); however, the precise pathological consequences of Tn antigen expression on CRC are unknown. T-synthase is the key enzyme required for biosynthesis of mature O-glycans. Here
Neha M Sahasrabudhe et al.
Biological chemistry, 399(7), 649-659 (2018-06-13)
Colorectal cancer is the third most common cancer type worldwide. It is characterized by a high expression of aberrantly glycosylated ligands, such as the Tn antigen (GalNAcα1-Ser/Thr), which is a major ligand for the C-type lectin macrophage galactose-type lectin (MGL).
Yasuyuki Matsumoto et al.
Glycobiology, 30(5), 282-300 (2019-11-20)
The Tn antigen is a neoantigen abnormally expressed in many human carcinomas and expression correlates with metastasis and poor survival. To explore its biomarker potential, new antibodies are needed that specifically recognize this antigen in tumors. Here we generated two
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