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Properties of tetrahydropteroylpentaglutamate bound to 10-formyltetrahydrofolate dehydrogenase.
Kim DW, Huang T, Schirch D, Schirch V. Kim DW, et al. Biochemistry. 1996 Dec 10;35(49):15772-83. doi: 10.1021/bi9619684. Biochemistry. 1996. PMID: 8961940
This abundant liver enzyme is known to bind its product tetrahydropteroylpentaglutamate (H4PteGlu5) so tightly that it does not dissociate during size exclusion chromatography. 10-Formyltetrahydrofolate dehydrogenase is also known to exhibit strong product inhibition by H4 …
This abundant liver enzyme is known to bind its product tetrahydropteroylpentaglutamate (H4PteGlu5) so tightly that it does not disso …
The bifunctional enzyme formiminotransferase-cyclodeaminase is a tetramer of dimers.
MacKenzie RE, Aldridge M, Paquin J. MacKenzie RE, et al. J Biol Chem. 1980 Oct 10;255(19):9474-8. J Biol Chem. 1980. PMID: 7410436 Free article.
The purified transferase fragment has approximately 68% of the activity of the native enzyme, but has lost specificity for the naturally occurring polyglutamate derivatives of tetrahydrofolate. This is illustrated by an increase in Km for tetrahydropteroylpentaglutamate fr …
The purified transferase fragment has approximately 68% of the activity of the native enzyme, but has lost specificity for the naturally occ …
Enzymatic properties of dimethylglycine dehydrogenase and sarcosine dehydrogenase from rat liver.
Porter DH, Cook RJ, Wagner C. Porter DH, et al. Arch Biochem Biophys. 1985 Dec;243(2):396-407. doi: 10.1016/0003-9861(85)90516-8. Arch Biochem Biophys. 1985. PMID: 2417560
Dimethylglycine dehydrogenase (EC 1.5.99.2) and sarcosine dehydrogenase (EC 1.5.99.1) are flavoproteins which catalyze the oxidative demethylation of dimethylglycine to sarcosine and sarcosine to glycine, respectively. During these reactions tightly bound tetrahydropteroylpent …
Dimethylglycine dehydrogenase (EC 1.5.99.2) and sarcosine dehydrogenase (EC 1.5.99.1) are flavoproteins which catalyze the oxidative demethy …
Enzymatic synthesis of folylpolyglutamates. Characterization of the reaction and its products.
McGuire JJ, Hsieh P, Coward JK, Bertino JR. McGuire JJ, et al. J Biol Chem. 1980 Jun 25;255(12):5776-88. J Biol Chem. 1980. PMID: 6892914 Free article.
Synthesis of pentaglutamate forms, the predominant chain length of rat liver folates in vivo, was detected at low (dl)-5,6,7,8-tetrahydrofolic acid, but hexaglutamate was not detected. Synthetic (l)-5,6,7,8-tetrahydropteroylpentaglutamate was a poor substrate for the synth …
Synthesis of pentaglutamate forms, the predominant chain length of rat liver folates in vivo, was detected at low (dl)-5,6,7,8-tetrahydrofol …
Inhibitory action of 10-deazaaminopterins and their polyglutamates on human thymidylate synthase.
Ueda T, Dutschman GE, Nair MG, Degraw JI, Sirotnak FM, Cheng YC. Ueda T, et al. Mol Pharmacol. 1986 Aug;30(2):149-53. Mol Pharmacol. 1986. PMID: 2426568
In contrast, 10-ethyl-10-deazaaminopterin and its polyglutamates inhibited TMPS in a competitive fashion with a Ki value of 410 microM for the monoglutamate. With 5,10-methylene-tetrahydropteroylpentaglutamate as a substrate, 10-deazaaminopterin and its polyglutamates beha …
In contrast, 10-ethyl-10-deazaaminopterin and its polyglutamates inhibited TMPS in a competitive fashion with a Ki value of 410 microM for t …
Effect of a histidine-excess diet on a tetrahydrofolylpolyglutamate pattern in rat liver.
Kohashi M, Takahashi A, Iwai K. Kohashi M, et al. J Nutr Sci Vitaminol (Tokyo). 1990 Feb;36(1):11-9. doi: 10.3177/jnsv.36.11. J Nutr Sci Vitaminol (Tokyo). 1990. PMID: 2362222
Hepatic methyltetrahydropteroylpentaglutamate (CH3-H4PteGlu5), and tetrahydropteroylmonoglutamate concentrations in His-rats was 5.7- and 2-fold higher than controls, respectively. The tetrahydropteroylpentaglutamate (H4PteGlu5) concentration in the His-rats was 74% lower …
Hepatic methyltetrahydropteroylpentaglutamate (CH3-H4PteGlu5), and tetrahydropteroylmonoglutamate concentrations in His-rats was 5.7- and 2- …
Purification and partial characterization of rat liver folate binding protein: cytosol I.
Cook RJ, Wagner C. Cook RJ, et al. Biochemistry. 1982 Aug 31;21(18):4427-34. doi: 10.1021/bi00261a036. Biochemistry. 1982. PMID: 6897000
Sodium dodecyl sulfate electrophoresis revealed a single band with a molecular weight of about 100 000 which suggests the native protein is composed of two identical subunits. The partially purified protein contains bound tetrahydropteroylpentaglutamate....
Sodium dodecyl sulfate electrophoresis revealed a single band with a molecular weight of about 100 000 which suggests the native protein is …