| Epitope ID | EP0022 | 
  | Epitope name | Sialyl Tn Antigen | 
  | Structure |  | 
  | Sequence | Neu5Ac(a2-6)GalNAc(a1-)Ser/Thr | 
  | Aliases |  | 
  | History | Red blood cells of blood group Tn were later found to coexpress sialyl Tn antigen,which is considered as a rare histo-blood group antigen. | 
  | DB | GlyTouCan:G36123IU | 
  | Molecular weight | 512.5(Ser/Thr) | 
  | Composition | (Neu5Ac)1(GalNAc)1(Ser/Thr)1 | 
  | Species | Fasciola hepatica[7]Homo sapiens
 Human Immunodeficiency Virus[9]
 Mesocestoides vogae[90]
 Rattus norvegicus[6]
 Trypanosoma cruzi[8]
 | 
  | Tissue and Cellular distribution | ACF/aberrant crypt foci[103]B cell
 cancer/bladder [49]
 cancer/breast [2][3][21][22][23][24][25][26][55][104]
 cancer/colon[51][52]
 cancer/colon(rat)[53]
 cancer/colon(rat)(DMH induced)[84]
 cancer/colorectal [10][11][12][13][14][1][15][16][17][18][19][20][54][105]
 cancer/esophageal [50][5]
 cancer/liver [4]
 cancer/iterome cancer [46][47][48]
 cancer/pancreas[38][39]
 cancer/stomach[27][28][29][30][31][32][33][34][35][36][37]
 epithelial cell/bronchi(ferret)[89]
 epithelial cell/uterine cervical[46]
 erythroblastic cell
 intestinal metaplasia[85]
 malignant prostatic gland[106]
 metaplasia mucosa/stomach[107]
 normal colonic mucosa[14]
 normal epithelia/oral cavity[97]
 normal/duodenum[53]
 normal/gonocyte[89]
 normal/ileum[53]
 normal/jejunum[53]
 prostate intraepithelial neoplasia[106]
 serum[93]
 tumor/anaplastic meningioma[75]
 tumor/ovary[40][41][42][43][44][45]
 | 
  | Subcellular distribution | goalec cell vacuoles/cytoplasm of columnar cells[72]Golgi compartment and RER/human colorectal cancer[69]
 trans-Golgi apparatus/human colorectal adenoma[69]
 | 
  | Developmental change | as early as nine weeks of gastation[72]slight increase between 12 and 28 days of differenciation in BG01 human embryonic stem cells[98]
 Gonocytes expressed abundant sialyl-Tn and sialyl-T, and adult spermatogonia were devoid. [89]
 | 
  | Cell line | EEB/erythroblastic leukemia[86]HEL/human erythroleukemia
 HMA-1/human breast carcinoma[55]
 HT-29/human colon adenocarcinoma[52]
 K562/human erythromyeloblastoid leukemia
 LMCR/rat colon adenocarcinoma[53]
 LS174T/human colon adenocarcinoma[51]
 LS180/human colon adenocarcinoma[54]
 LSC/human colon cancer[76]
 MCF-7/human breast adenocarcinoma
 | 
  | Receptor | Siglec-6[56*][57*] | 
  | Function | apoptosis of monocyte-derived dendritic cells[91] decrease of adhesion and increase of migration[92][108]
 increase of tumor growth[92][108]
 associated with morphological changes, decreased growth and increased migration of MDA-MB-231 cells[102]
 | 
  | Diseases | anaplastic meningioma[75]Barrett's esophagus [94]
 bladder cancer[49]
 breast cancer[2][3][21][22][23][24][25][26]
 colon cancer[51][52][53][84][93]
 colorectal cancer[10][11][12][13][14][1][15][16][17][18][19][20]
 erythroblastic leukemia[86]
 esophageal cancer[50][5]
 gastric cancer[27][28][29][30][31][32][33][34][35][36][37]
 helicobacter pylori chronic gastritis(HpCG)[70]
 liver cancer[4]
 iterome cancer[46][47][48]
 ovary tumor[40][41][42][43][44][45]
 pancreas cancer[38][39]
 | 
  | Application | tumor marker[109] | 
  | Comment |  |