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  1. 1.   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. 2.   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. 3.   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. 4.   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. 5.   Mutation of arginine 228 to lysine enhances the glucosyltransferase activity of bovine beta-1,4-galactosyltransferase I
  2. Ramakrishnan, B.; Boeggeman, E.; Qasba, P. K.
  3. Biochemistry. 2005, MAR 8; 44(9): 3202-3210.
  1. 6.   Substrate-induced conformational changes in glycosyltransferases
  2. Qasba, P. K.; Ramakrishnan, B.; Boeggeman, E.
  3. Trends in Biochemical Sciences. 2005, JAN; 30(1): 53-62.
  1. 7.   Ions from the Hofmeister series and osmolytes: effects on proteins in solution and in the crystallization process
  2. Collins, K. D.
  3. Methods. 2004, NOV; 34(3): 300-311.
  1. 8.   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. 9.   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. 10.   Interdependence of backbone flexibility, residue conservation, and enzyme function: A case study on 1,4-galactosyltransferase- I
  2. Gunasekaran, K.; Ma, B. Y.; Ramakrishnan, B.; Qasba, P. K.; Nussinov, R.
  3. Biochemistry. 2003 42(13): 3674-3687.
  1. 11.   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. 12.   Reducing the computational complexity of protein folding via fragment folding and assembly
  2. Haspel, N.; Tsai, C. J.; Wolfson, H.; Nussinov, R.
  3. Protein Science. 2003 12(6): 1177-1187.
  1. 13.   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. 14.   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. 15.   Structure-based design of beta 1,4-galactosyltransferase I (beta 4GaI-T1) with equally efficient N- acetylgalactosaminyltransferase activity - Point mutation broadens beta 4GaI-T1 donor specificity
  2. Ramakrishnan, B.; Qasba, P. K.
  3. Journal of Biological Chemistry. 2002 277(23): 20833-20839.
  1. 16.   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. 17.   Comparison of protein fragments identified by limited proteolysis and by computational cutting of proteins
  2. Tsai, C. J.; de Laureto, P. P.; Fontana, A.; Nussinov, R.
  3. Protein Science. 2002 11(7): 1753-1770.
  1. 18.   The hydrophobic effect: A new insight from cold denaturation and a two-state water structure
  2. Tsai, C. J.; Maizel, J. V.; Nussinov, R.
  3. Critical Reviews in Biochemistry and Molecular Biology. 2002 37(2): 55-69.
  1. 19.   Thermodynamic differences among homologous thermophilic and mesophilic proteins
  2. Kumar, S.; Tsai, C. J.; Nussinov, R.
  3. Biochemistry. 2001 40(47): 14152-14165.
  1. 20.   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. 21.   Structured disorder and conformational selection
  2. Tsai, C. J.; Ma, B. Y.; Sham, Y. Y.; Kumar, S.; Nussinov, R.
  3. Proteins-Structure Function and Genetics. 2001 44(4): 418-427.
  1. 22.   Anatomy of protein structures: Visualizing how a one- dimensional protein chain folds into a three-dimensional shape
  2. Tsai, C. J.; Maizel, J. V.; Nussinov, R.
  3. Proceedings of the National Academy of Sciences of the United States of America. 2000 97(22): 12038-12043.
  1. 23.   Involvement of sugars in protein-protein interactions
  2. Qasba, P. K.
  3. Carbohydrate Polymers. 2000 41(3): 293-309.
  1. 24.   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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