PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 27934036-5 2016 Using a uniformly 15N-labeled mutant of calbindin D9k loaded with either Tm3+ or Tb3+, reduced R1 and R2 relaxation rates of backbone 15N spins were observed compared with the diamagnetic reference (the same protein loaded with Y3+). tb3+ 81-85 S100 calcium binding protein G Homo sapiens 40-53 3567142-3 1987 Addition of Ca2+ or Tb3+ to the ANS-apo-CaBP system is capable of enhancing its fluorescence up to about 2- or 5-fold, respectively, causing further blue shift of the emission maximum. tb3+ 20-24 S100 calcium binding protein G Homo sapiens 40-44 3567142-6 1987 Biphasic change of response has also been observed in UV absorption of the CaBP with increasing concentration of Tb3+. tb3+ 113-117 S100 calcium binding protein G Homo sapiens 75-79 3567142-8 1987 All these results indicate that the CaBP molecule contains a single ANS binding site and the conformation and/or microenvironment surrounding bound ANS of the protein is altered reversibly with binding of Ca2+ or Tb3+ to it and that there are differences between Ca2+- and Tb3+-induced conformation changes around the ANS-binding site and the tyrosine residue of it. tb3+ 213-217 S100 calcium binding protein G Homo sapiens 36-40 3567142-8 1987 All these results indicate that the CaBP molecule contains a single ANS binding site and the conformation and/or microenvironment surrounding bound ANS of the protein is altered reversibly with binding of Ca2+ or Tb3+ to it and that there are differences between Ca2+- and Tb3+-induced conformation changes around the ANS-binding site and the tyrosine residue of it. tb3+ 273-277 S100 calcium binding protein G Homo sapiens 36-40 6469946-1 1984 Quantitative analyses were carried out on Tb3+ binding to porcine intestinal calcium-binding protein (CaBP). tb3+ 42-46 S100 calcium binding protein G Homo sapiens 102-106 6469946-2 1984 Tb3+ (emission at 547 nm) and intrinsic tyrosine (emission at 303 nm) fluorescences upon excitation at 260 nm increase almost in parallel with increasing Tb3+ concentration up to a molar ratio of 2 against the protein in the CaBP solution. tb3+ 0-4 S100 calcium binding protein G Homo sapiens 225-229 6469946-2 1984 Tb3+ (emission at 547 nm) and intrinsic tyrosine (emission at 303 nm) fluorescences upon excitation at 260 nm increase almost in parallel with increasing Tb3+ concentration up to a molar ratio of 2 against the protein in the CaBP solution. tb3+ 154-158 S100 calcium binding protein G Homo sapiens 225-229 6469946-3 1984 The pH dependence profile of Tb3+ fluorescence of the Tb3+-CaBP complex suggests that some free carboxylate groups are involved in the binding, as also suggested for Ca2+ binding. tb3+ 29-33 S100 calcium binding protein G Homo sapiens 59-63 6469946-4 1984 The results of fluorometric titration of Tb3+ and intrinsic tyrosine fluorescences of the CaBP complex with Tb3+ or Ca2+ led us to conclude that Tb3+ and Ca2+ have two common binding sites for each CaBP molecule. tb3+ 108-112 S100 calcium binding protein G Homo sapiens 90-94 6469946-4 1984 The results of fluorometric titration of Tb3+ and intrinsic tyrosine fluorescences of the CaBP complex with Tb3+ or Ca2+ led us to conclude that Tb3+ and Ca2+ have two common binding sites for each CaBP molecule. tb3+ 108-112 S100 calcium binding protein G Homo sapiens 198-202 6469946-4 1984 The results of fluorometric titration of Tb3+ and intrinsic tyrosine fluorescences of the CaBP complex with Tb3+ or Ca2+ led us to conclude that Tb3+ and Ca2+ have two common binding sites for each CaBP molecule. tb3+ 108-112 S100 calcium binding protein G Homo sapiens 90-94 6469946-4 1984 The results of fluorometric titration of Tb3+ and intrinsic tyrosine fluorescences of the CaBP complex with Tb3+ or Ca2+ led us to conclude that Tb3+ and Ca2+ have two common binding sites for each CaBP molecule. tb3+ 108-112 S100 calcium binding protein G Homo sapiens 198-202 6469946-6 1984 Tb3+ strongly inhibits 45Ca binding to one of the two Ca2+-binding sites in the CaBP. tb3+ 0-4 S100 calcium binding protein G Homo sapiens 80-84 6469946-7 1984 All of these and previous results indicate that each Tb3+ ion can bind to either of two high-affinity Ca2+-binding sites in porcine intestinal CaBP with an affinity different from that for Ca2+ ion. tb3+ 53-57 S100 calcium binding protein G Homo sapiens 143-147 6469946-8 1984 We discuss the localization of the Ca2+- and Tb3+-binding sites in the CaBP. tb3+ 45-49 S100 calcium binding protein G Homo sapiens 71-75