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20 Apr 2002: Communicated by Max F. Perutz, Medical Research Council, Cambridge, United Kingdom, June 20, 1997 (received for review April 2, 1997). ... 20. Leslie, A. G. W. (1992) Joint CCP4 and ESF-EACMB Newsletteron Protein Crystallography (Daresbury Lab.,

20 Apr 2002: Important Tyrosine Residues in PLC247984. (Lck) imidazole in 20 mM Hepes, pH 8.0. ... After induction with 0.2 mM isopropyl-1-thio--D-galacto-pyranoside (Calbiochem), cells were grown for 18 h at 20 C.

20 Apr 2002: Received for publication, November 20, 1997, and in revised form, February 18, 1998). ... The data are averages of twomeasurements that did not differ more than 20%.

19 Apr 2002: Molecular Cell, Vol. 9, 773–788, April, 2002, Copyright  2002 by Cell Press. Molecular Architecture of SMC Proteinsand the Yeast Cohesin Complex. other eukaryotes so far studied and several have alsobeen implicated in sister chromatid cohesion

30 Dec 2002: of 3.7 AÊ , for 255 Ca atoms, and a Z-score of 20.3 (Holm and Sander, 1993). ... J. Mol. Biol., 229,105124. Received August 20, 2002; revised October 4, 2002;accepted October 22, 2002.

20 Apr 2002: For the heavy atom derivatives, crystalswere soaked for 20 h in the reservoir solution containing 1 mM K2PtCl4(data set K2PtCl4 (I)) for 5 h in 5 mM K2PtCl4 (data set ... 1995) Trends Biochem. Sci. 20, 272–27667. Murray, D., Ben-Tal, N., Honig, B., and

20 Apr 2002: Isothermal Titration CalorimetryAcknowledgmentsDi-C4-PtdIns(3)P (1 mM) in running buffer (20 mM Tris [pH 7.4] and. ... Johnson for help with calorimetry, and D.20 C, with an injection volume of 6 l.

5 Jul 2002: sequences. J Biol Chem 1993;268:23552 –23561. 20. Borel AC, Simon SM. ... FEBS. Letters 1997;412:15 – 20. 42. Baker D, Sohl JL, Agard DA.

20 Apr 2002: Biol. Chem. 271 (1996)2507125078. [20] L.W. Runnels, J. Jenco, A. Morris, S.

8 May 2002: c) Suppose that the firm can sell no more than 20 units of outputat the price of 60. ... d) Suppose that thefirmcansell a small amountof additional units ofoutput in the ‘black’ economy (but can sell no more than 20 unitsin the ‘official’ economy)