PMID- 23115247 OWN - NLM STAT- MEDLINE DCOM- 20130325 LR - 20211021 IS - 1083-351X (Electronic) IS - 0021-9258 (Print) IS - 0021-9258 (Linking) VI - 287 IP - 53 DP - 2012 Dec 28 TI - Functional glycomic analysis of human milk glycans reveals the presence of virus receptors and embryonic stem cell biomarkers. PG - 44784-99 LID - 10.1074/jbc.M112.425819 [doi] AB - Human milk contains a large diversity of free glycans beyond lactose, but their functions are not well understood. To explore their functional recognition, here we describe a shotgun glycan microarray prepared from isolated human milk glycans (HMGs), and our studies on their recognition by viruses, antibodies, and glycan-binding proteins (GBPs), including lectins. The total neutral and sialylated HMGs were derivatized with a bifunctional fluorescent tag, separated by multidimensional HPLC, and archived in a tagged glycan library, which was then used to print a shotgun glycan microarray (SGM). This SGM was first interrogated with well defined GBPs and antibodies. These data demonstrated both the utility of the array and provided preliminary structural information (metadata) about this complex glycome. Anti-TRA-1 antibodies that recognize human pluripotent stem cells specifically recognized several HMGs that were then further structurally defined as novel epitopes for these antibodies. Human influenza viruses and Parvovirus Minute Viruses of Mice also specifically recognized several HMGs. For glycan sequencing, we used a novel approach termed metadata-assisted glycan sequencing (MAGS), in which we combine information from analyses of glycans by mass spectrometry with glycan interactions with defined GBPs and antibodies before and after exoglycosidase treatments on the microarray. Together, these results provide novel insights into diverse recognition functions of HMGs and show the utility of the SGM approach and MAGS as resources for defining novel glycan recognition by GBPs, antibodies, and pathogens. FAU - Yu, Ying AU - Yu Y AD - Department of Biochemistry and the Glycomics Center, Emory University School of Medicine, Atlanta, Georgia 30322, USA. FAU - Mishra, Shreya AU - Mishra S FAU - Song, Xuezheng AU - Song X FAU - Lasanajak, Yi AU - Lasanajak Y FAU - Bradley, Konrad C AU - Bradley KC FAU - Tappert, Mary M AU - Tappert MM FAU - Air, Gillian M AU - Air GM FAU - Steinhauer, David A AU - Steinhauer DA FAU - Halder, Sujata AU - Halder S FAU - Cotmore, Susan AU - Cotmore S FAU - Tattersall, Peter AU - Tattersall P FAU - Agbandje-McKenna, Mavis AU - Agbandje-McKenna M FAU - Cummings, Richard D AU - Cummings RD FAU - Smith, David F AU - Smith DF LA - eng GR - HHSN266200700006C/AI/NIAID NIH HHS/United States GR - P41 GM103694/GM/NIGMS NIH HHS/United States GR - R01 GM085448/GM/NIGMS NIH HHS/United States GR - GM62116/GM/NIGMS NIH HHS/United States GR - U54 GM062116/GM/NIGMS NIH HHS/United States GR - R01 CA029303/CA/NCI NIH HHS/United States GR - R24 GM098791/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20121031 PL - United States TA - J Biol Chem JT - The Journal of biological chemistry JID - 2985121R RN - 0 (Biomarkers) RN - 0 (Polysaccharides) RN - 0 (Receptors, Virus) SB - IM MH - Animals MH - Biomarkers/*chemistry MH - Carbohydrate Sequence MH - Cell Line MH - Embryonic Stem Cells/metabolism MH - *Glycomics MH - Humans MH - Mice MH - Milk, Human/*chemistry/metabolism MH - Molecular Sequence Data MH - Polysaccharides/*chemistry/metabolism MH - Receptors, Virus/*analysis/genetics/metabolism PMC - PMC3531791 EDAT- 2012/11/02 06:00 MHDA- 2013/03/26 06:00 PMCR- 2013/12/28 CRDT- 2012/11/02 06:00 PHST- 2012/11/02 06:00 [entrez] PHST- 2012/11/02 06:00 [pubmed] PHST- 2013/03/26 06:00 [medline] PHST- 2013/12/28 00:00 [pmc-release] AID - S0021-9258(20)41713-2 [pii] AID - M112.425819 [pii] AID - 10.1074/jbc.M112.425819 [doi] PST - ppublish SO - J Biol Chem. 2012 Dec 28;287(53):44784-99. doi: 10.1074/jbc.M112.425819. Epub 2012 Oct 31.