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Results: 1 to 20 of 111

1.

Initial step of B12-dependent enzymatic catalysis: energetic implications regarding involvement of the one-electron-reduced form of adenosylcobalamin cofactor.

Kozlowski PM, Kamachi T, Kumar M, Yoshizawa K.

J Biol Inorg Chem. 2012 Feb;17(2):293-300. doi: 10.1007/s00775-011-0850-3. Epub 2011 Oct 28.

PMID:
22033630
[PubMed - indexed for MEDLINE]
2.

Molecular modeling of the mechanochemical triggering mechanism for catalysis of carbon-cobalt bond homolysis in coenzyme B12.

Brown KL, Marques HM.

J Inorg Biochem. 2001 Jan 15;83(2-3):121-32.

PMID:
11237251
[PubMed - indexed for MEDLINE]
3.

Solution structure and thermolysis of Cobeta-5'-deoxyadenosylimidazolylcobamide, a coenzyme B12 analogue with an imidazole axial nucleoside.

Brown KL, Zou X, Banka RR, Perry CB, Marques HM.

Inorg Chem. 2004 Dec 13;43(25):8130-42.

PMID:
15578853
[PubMed - indexed for MEDLINE]
4.

DFT study of Co-C bond cleavage in the neutral and one-electron-reduced alkyl-cobalt(III) phthalocyanines.

Galezowski W, Kuta J, Kozlowski PM.

J Phys Chem B. 2008 Mar 13;112(10):3177-83. doi: 10.1021/jp0769678. Epub 2008 Feb 14.

PMID:
18271575
[PubMed - indexed for MEDLINE]
5.

The enzymatic activation of coenzyme B12.

Brown KL.

Dalton Trans. 2006 Mar 7;(9):1123-33. Epub 2006 Feb 7. Review.

PMID:
16482346
[PubMed - indexed for MEDLINE]
7.

On the importance of ribose orientation in the substrate activation of the coenzyme B12-dependent mutases.

Durbeej B, Sandala GM, Bucher D, Smith DM, Radom L.

Chemistry. 2009 Aug 24;15(34):8578-85. doi: 10.1002/chem.200901002.

PMID:
19630017
[PubMed - indexed for MEDLINE]
8.

Computational insights into the mechanism of radical generation in B12-dependent methylmalonyl-CoA mutase.

Kwiecien RA, Khavrutskii IV, Musaev DG, Morokuma K, Banerjee R, Paneth P.

J Am Chem Soc. 2006 Feb 1;128(4):1287-92.

PMID:
16433547
[PubMed - indexed for MEDLINE]
9.

Mechanistic aspects of propene epoxidation by hydrogen peroxide. Catalytic role of water molecules, external electric field, and zeolite framework of TS-1.

Stare J, Henson NJ, Eckert J.

J Chem Inf Model. 2009 Apr;49(4):833-46. doi: 10.1021/ci800227n.

PMID:
19267473
[PubMed - indexed for MEDLINE]
10.

DFT studies of trans and cis influences in the homolysis of the Co-C bond in models of the alkylcobalamins.

Govender PP, Navizet I, Perry CB, Marques HM.

J Phys Chem A. 2013 Apr 11;117(14):3057-68. doi: 10.1021/jp311788t. Epub 2013 Apr 2.

PMID:
23510290
[PubMed - indexed for MEDLINE]
11.

The first experimental test of the hypothesis that enzymes have evolved to enhance hydrogen tunneling.

Doll KM, Bender BR, Finke RG.

J Am Chem Soc. 2003 Sep 10;125(36):10877-84.

PMID:
12952467
[PubMed - indexed for MEDLINE]
12.

Transition from hydrogen atom to hydride abstraction by Mn4O4(O2PPh2)6 versus [Mn4O4(O2PPh2)6]+: O-H bond dissociation energies and the formation of Mn4O3(OH)(O2PPh2)6.

Carrell TG, Bourles E, Lin M, Dismukes GC.

Inorg Chem. 2003 May 5;42(9):2849-58.

PMID:
12716176
[PubMed - indexed for MEDLINE]
13.

Enzymatic radical catalysis: coenzyme B12-dependent diol dehydratase.

Toraya T.

Chem Rec. 2002;2(5):352-66. Review.

PMID:
12369058
[PubMed - indexed for MEDLINE]
14.

Reductive cleavage mechanism of methylcobalamin: elementary steps of Co-C bond breaking.

Kozlowski PM, Kuta J, Galezowski W.

J Phys Chem B. 2007 Jul 5;111(26):7638-45. Epub 2007 Jun 13.

PMID:
17567060
[PubMed - indexed for MEDLINE]
15.

Mechanism of the hydration of carbon dioxide: direct participation of H2O versus microsolvation.

Nguyen MT, Matus MH, Jackson VE, Vu TN, Rustad JR, Dixon DA.

J Phys Chem A. 2008 Oct 16;112(41):10386-98. doi: 10.1021/jp804715j. Epub 2008 Sep 25.

PMID:
18816037
[PubMed - indexed for MEDLINE]
16.
17.

Catalytic roles of active-site amino acid residues of coenzyme B12-dependent diol dehydratase: protonation state of histidine and pull effect of glutamate.

Kamachi T, Toraya T, Yoshizawa K.

J Am Chem Soc. 2004 Dec 15;126(49):16207-16.

PMID:
15584757
[PubMed - indexed for MEDLINE]
18.

The influence of hydrogen bonding interactions on the C-H bond activation step in class I ribonucleotide reductases.

Zipse H.

Org Biomol Chem. 2003 Feb 21;1(4):692-9.

PMID:
12929456
[PubMed - indexed for MEDLINE]
19.

Direct participation of potassium ion in the catalysis of coenzyme B(12)-dependent diol dehydratase.

Toraya T, Yoshizawa K, Eda M, Yamabe T.

J Biochem. 1999 Oct;126(4):650-4.

PMID:
10502670
[PubMed - indexed for MEDLINE]
Free Article
20.

Theoretical analysis of the diradical nature of adenosylcobalamin cofactor-tyrosine complex in B12-dependent mutases: inspiring PCET-driven enzymatic catalysis.

Kozlowski PM, Kamachi T, Kumar M, Nakayama T, Yoshizawa K.

J Phys Chem B. 2010 May 6;114(17):5928-39. doi: 10.1021/jp100573b.

PMID:
20387785
[PubMed - indexed for MEDLINE]

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