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  1. 1.   Carbohydrate antigen microarray analysis of serum IgG and IgM antibodies before and after adult porcine islet xenotransplantation in cynomolgus macaques
  2. Nanno, Yoshihide; Sterner, Eric; Gildersleeve,Jeffrey; Hering, Bernhard J.; Burlak, Christopher
  3. PLOS ONE. 2021, Jun 17; 16(6):
  1. 2.   Crystal structures of beta-1,4-galactosyltransferase 7 enzyme reveal conformational changes and substrate binding
  2. Tsutsui, Y.; Ramakrishnan, B.; Qasba, P. K.
  3. Journal of Biological Chemistry. 2013, 1-Nov; 288(44): 31963-70.
  1. 3.   The N-acetyl-binding pocket of N-acetylglucosaminyltransferases also accommodates a sugar analog with a chemical handle at C2
  2. Pasek, M.; Ramakrishnan, B.; Boeggeman, E.; Mercer, N.; Dulcey, A. E.; Griffiths, G. L.; Qasba, P. K.
  3. Glycobiology. 2012, Mar; 22(3): 379-388.
  1. 4.   Crystal Structure of the Catalytic Domain of Drosophila beta 1,4-Galactosyltransferase-7
  2. Ramakrishnan, B.; Qasba, P. K.
  3. Journal of Biological Chemistry. 2010, May; 285(20): 15619-15626.
  1. 5.   Bioconjugation and detection of lactosamine moiety using alpha1,3-galactosyltransferase mutants that transfer C2-modified galactose with a chemical handle
  2. Pasek, M.; Ramakrishnan, B.; Boeggeman, E.; Manzoni, M.; Waybright, T. J.; Qasba, P. K.
  3. Bioconjugate Chemistry. 2009, Mar 18; 20(3): 608-18.
  1. 6.   Deoxygenated Disaccharide Analogs as Specific Inhibitors of beta 1-4-Galactosyltransferase 1 and Selectin-mediated Tumor Metastasis
  2. Brown, J. R.; Yang, F.; Sinha, A.; Ramakrishnan, B.; Tor, Y.; Qasba, P. K.; Esko, J. D.
  3. Journal of Biological Chemistry. 2009 284(8): 4952-4959.
  1. 7.   Site-specific linking of biomolecules via glycan residues using Glycosyltransferases
  2. Qasba, P. K.; Boeggeman, E.; Ramakrishnan, B.
  3. Biotechnology Progress. 2008 24(3): 520-526.
  1. 8.   Structure and Function of beta-1,4-Galactosyltransferase
  2. Qasba, P. K.; Ramakrishnan, B.; Boeggeman, E.
  3. Current Drug Targets. 2008 9(4): 292-309.
  1. 9.   Letter to the Glyco-Forum: Catalytic domains of glycosyltransferases with 'add-on' domains
  2. Qasba, P. K.; Ramakrishnan, B.
  3. Glycobiology. 2007, May; 17(5): 7G-9G.
  1. 10.   Direct identification of nonreducing GlcNAc residues on N-glycans of glycoproteins using a novel chemoenzymatic method
  2. Boeggeman, E.; Ramakrishnan, B.; Kilgore, C.; Khidekel, N.; Hsieh-Wilson, L. C.; Simpson, J. T.; Qasba, P. K.
  3. Bioconjugate Chemistry. 2007, May-Jun; 18(3): 806-814.
  1. 11.   Role of a single amino acid in the evolution of glycans of invertebrates and vertebrates
  2. Ramakrishnan, B.; Qasba, P. K.
  3. Journal of Molecular Biology. 2007, Jan; 365(3): 570-576.
  1. 12.   Mutant glycosyltransferases assist in the development of a targeted drug delivery system and contrast agents for MRI
  2. Qasba, P. K.; Ramakrishnan, B.; Boeggeman, E.
  3. Aaps Journal. 2006 8(1): E190-E195.
  1. 13.   Oligosaccharide preferences of beta 1,4-galactosyltransferase-I: Crystal structures of Met340His mutant of human beta 1,4-galactosyltransferase-I with a pentasaccharide and trisaccharides of the N-glycan moiety
  2. Ramasamy, V.; Ramakrishnan, B.; Boeggeman, E.; Ratner, D. M.; Seeberger, P. H.; Qasba, P. K.
  3. Journal of Molecular Biology. 2005, OCT 14; 353(1): 53-67.
  1. 14.   Effect of the Met344His mutation on the conformational dynamics of bovine beta-1,4-galactosyltransferase: Crystal structure of the Met344His mutant in complex with chitobiose
  2. Ramakrishnan, B.; Boeggeman, E.; Qasba, P. K.
  3. Biochemistry. 2004, OCT 5; 43(39): 12513-12522.
  1. 15.   Structure and catalytic cycle of beta-1,4-galactosyltransferase
  2. Ramakrishnan, B.; Boeggeman, E.; Ramasamy, V.; Qasba, P. K.
  3. Current Opinion in Structural Biology. 2004, OCT; 14(5): 593-600.
  1. 16.   Comparison of the closed conformation of the beta 1,4- galactosyltransferase-1 (beta 4Gal-T1) in the presence and absence of alpha-lactalbumin (LA)
  2. Ramakrishnan, B.; Qasba, P. K.
  3. Journal of Biomolecular Structure & Dynamics. 2003 21(1): 1-8.
  1. 17.   The role of tryptophan 314 in the conformational changes of beta 1,4-galactosyltransferase-I
  2. Ramasamy, V.; Ramakrishnan, B.; Boeggeman, E.; Qasba, P. K.
  3. Journal of Molecular Biology. 2003 331(5): 1065-1076.
  1. 18.   The N-terminal stem region of bovine and human beta 1,4- galactosyltransferase I increases the in vitro folding efficiency of their catalytic domain from inclusion bodies
  2. Boeggeman, E. E.; Ramakrishnan, B.; Qasba, P. K.
  3. Protein Expression and Purification. 2003 30(2): 219-229.
  1. 19.   Studies on the metal binding sites in the catalytic domain of beta 1,4-galactosyltransferase
  2. Boeggeman, E.; Qasba, P. K.
  3. Glycobiology. 2002 12(7): 395-407.
  1. 20.   beta-1,4-galactosyltransferase and lactose synthase: Molecular mechanical devices
  2. Ramakrishnan, B.; Boeggeman, E.; Qasba, P. K.
  3. Biochemical and Biophysical Research Communications. 2002 291(5): 1113-1118.
  1. 21.   Crystal structure of beta 1,4-galactosyltransferase complex with UDP-Gal reveals an oligosaccharide acceptor binding site
  2. Ramakrishnan, B.; Balaji, P. V.; Qasba, P. K.
  3. Journal of Molecular Biology. 2002 318(2): 491-502.
  1. 22.   alpha-Lactalbumin (LA) stimulates milk beta-1,4- galactosyltransferase I (beta 4Gal-T1) to transfer glucose from UDP-glucose to N-acetylglucosamine - Crystal structure of beta 4Gal-T1-LA complex with UDP-Glc
  2. Ramakrishnan, B.; Shah, P. S.; Qasba, P. K.
  3. Journal of Biological Chemistry. 2001 276(40): 37665-37671.
  1. 23.   Crystal structure of lactose synthase reveals a large conformational change in its catalytic component, the beta 1,4- galactosyltransferase-1
  2. Ramakrishnan, B.; Qasba, P. K.
  3. Journal of Molecular Biology. 2001 310(1): 205-218.
  1. 24.   Active site studies of bovine alpha 1 -> 3-galactosyltransferase and its secondary structure prediction
  2. Shah, P. S.; Bizik, F.; Dukor, R. K.; Qasba, P. K.
  3. Biochimica et Biophysica Acta - Protein Structure & Molecular Enzymology. 2000 1480(1-2): 222-234.
  1. 25.   Molecular Divergence of Lysozymes and Alpha-Lactalbumin
  2. Qasba, P. K.; Kumar, S.
  3. Critical Reviews in Biochemistry and Molecular Biology. 1997 32(4): 255 ff..
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