Choi G - Search Results

1

Pseudoreversion of the catalytic activity of Y14F by the additional substitution(s) of tyrosine with phenylalanine in the hydrogen bond network of delta 5-3-ketosteroid isomerase from Pseudomonas putida biotype B.

Choi G, Ha NC, Kim MS, Hong BH, Oh BH, Choi KY. Choi G, et al. Among authors: choi ky. Biochemistry. 2001 Jun 12;40(23):6828-35. doi: 10.1021/bi002767+. Biochemistry. 2001. PMID: 11389596

2

Contribution of a low-barrier hydrogen bond to catalysis is not significant in ketosteroid isomerase.

Jang DS, Choi G, Cha HJ, Shin S, Hong BH, Lee HJ, Lee HC, Choi KY. Jang DS, et al. Among authors: choi ky, choi g. Mol Cells. 2015 May;38(5):409-15. doi: 10.14348/molcells.2015.2266. Epub 2015 May 7. Mol Cells. 2015. PMID: 25947291 Free PMC article.

3

Mutational analysis of the three cysteines and active-site aspartic acid 103 of ketosteroid isomerase from Pseudomonas putida biotype B.

Kim SW, Joo S, Choi G, Cho HS, Oh BH, Choi KY. Kim SW, et al. Among authors: choi ky, choi g. J Bacteriol. 1997 Dec;179(24):7742-7. doi: 10.1128/jb.179.24.7742-7747.1997. J Bacteriol. 1997. PMID: 9401033 Free PMC article.

4

Crystal structure and enzyme mechanism of Delta 5-3-ketosteroid isomerase from Pseudomonas testosteroni.

Cho HS, Choi G, Choi KY, Oh BH. Cho HS, et al. Among authors: choi ky, choi g. Biochemistry. 1998 Jun 9;37(23):8325-30. doi: 10.1021/bi9801614. Biochemistry. 1998. PMID: 9622484

5

Roles of active site aromatic residues in catalysis by ketosteroid isomerase from Pseudomonas putida biotype B.

Kim DH, Nam GH, Jang DS, Choi G, Joo S, Kim JS, Oh BH, Choi KY. Kim DH, et al. Among authors: choi ky, choi g. Biochemistry. 1999 Oct 19;38(42):13810-9. doi: 10.1021/bi991040m. Biochemistry. 1999. PMID: 10529226

6

Crystal structure of delta(5)-3-ketosteroid isomerase from Pseudomonas testosteroni in complex with equilenin settles the correct hydrogen bonding scheme for transition state stabilization.

Cho HS, Ha NC, Choi G, Kim HJ, Lee D, Oh KS, Kim KS, Lee W, Choi KY, Oh BH. Cho HS, et al. Among authors: choi ky, choi g. J Biol Chem. 1999 Nov 12;274(46):32863-8. doi: 10.1074/jbc.274.46.32863. J Biol Chem. 1999. PMID: 10551849 Free article.

7

Asp-99 donates a hydrogen bond not to Tyr-14 but to the steroid directly in the catalytic mechanism of Delta 5-3-ketosteroid isomerase from Pseudomonas putida biotype B.

Choi G, Ha NC, Kim SW, Kim DH, Park S, Oh BH, Choi KY. Choi G, et al. Among authors: choi ky. Biochemistry. 2000 Feb 8;39(5):903-9. doi: 10.1021/bi991579k. Biochemistry. 2000. PMID: 10653633

8

Contribution of the hydrogen-bond network involving a tyrosine triad in the active site to the structure and function of a highly proficient ketosteroid isomerase from Pseudomonas putida biotype B.

Kim DH, Jang DS, Nam GH, Choi G, Kim JS, Ha NC, Kim MS, Oh BH, Choi KY. Kim DH, et al. Among authors: choi ky, choi g. Biochemistry. 2000 Apr 25;39(16):4581-9. doi: 10.1021/bi992119u. Biochemistry. 2000. PMID: 10769113

9

Equilibrium and kinetic analysis of folding of ketosteroid isomerase from Comamonas testosteroni.

Kim DH, Jang DS, Nam GH, Yun S, Cho JH, Choi G, Lee HC, Choi KY. Kim DH, et al. Among authors: choi ky, choi g. Biochemistry. 2000 Oct 24;39(42):13084-92. doi: 10.1021/bi000872d. Biochemistry. 2000. PMID: 11041875

10

Role of catalytic residues in enzymatic mechanisms of homologous ketosteroid isomerases.

Oh KS, Cha SS, Kim DH, Cho HS, Ha NC, Choi G, Lee JY, Tarakeshwar P, Son HS, Choi KY, Oh BH, Kim KS. Oh KS, et al. Among authors: choi ky, choi g. Biochemistry. 2000 Nov 14;39(45):13891-6. doi: 10.1021/bi001629h. Biochemistry. 2000. PMID: 11076530

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