Published in Mol Pharmacol on March 01, 1975
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The frequently low cobalamin levels in dementia usually signify treatable metabolic, neurologic and electrophysiologic abnormalities. Eur J Haematol (1995) 1.09
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Transport of folate compounds into Lactobacillus Casei. Arch Biochem Biophys (1974) 1.07
Hydroxylated derivatives of 5-methyl-5,6,7,8-tetrahydrofolate. Biochemistry (1971) 1.06
Activation of methionine synthase: further characterization of flavoprotein system. Arch Biochem Biophys (1977) 1.06
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Production of angiotensin-(1-7) by human vascular endothelium. Hypertension (1992) 1.03
Synthesis of a fluorescent derivative of amethopterin,. J Med Chem (1975) 1.02
Multiple forms of dihydrofolate reductase. Biochem Biophys Res Commun (1968) 0.99
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Glutathionylcobalamin as an intermediate in the formation of cobalamin coenzymes. Biochem Biophys Res Commun (1990) 0.98
Coupling of energy to folate transport in Lactobacillus casei. J Bacteriol (1979) 0.96
Transport of vitamin B12 into mouse leukemia cells. Arch Biochem Biophys (1975) 0.96
Dihydrofolate reductase from amethopterin-resistant Lactobacillus casei. Biochemistry (1972) 0.95
Iron-mercaptoethanol-inorganic sulfide complex. Possible model for the chromophore of nonheme iron proteins. Biochemistry (1970) 0.95
Membrane-associated folate transport proteins. Methods Enzymol (1986) 0.94
L1210 dihydrofolate reductase. Kinetics and mechanism of activation by various agents. J Biol Chem (1987) 0.93
Lipoprotein (a), homocysteine, and hypercoagulable states in young men with premature peripheral atherosclerosis: a prospective, controlled analysis. J Vasc Surg (1996) 0.93
Transport of folate compounds in L1210 cells: kinetic evidence that folate influx proceeds via the high-affinity transport system for 5-methyltetrahydrofolate and methotrexate. Cancer Res (1986) 0.93
Homocysteine and lipoprotein(a) interact to increase CAD risk in young men and women. Arterioscler Thromb Vasc Biol (2000) 0.93
Dietary intake of cobalamin in elderly people who have abnormal serum cobalamin, methylmalonic acid and homocysteine levels. Eur J Clin Nutr (1998) 0.92
Thymidylate synthetase and its relationship to dihydrofolate reductase. Ann N Y Acad Sci (1971) 0.92
Methotrexate-alpha-phenylalanine: optimization of methotrexate prodrug for activation by carboxypeptidase A-monoclonal antibody conjugate. Cancer Res (1995) 0.92
The dynamics of cobalamin utilization in L-1210 mouse leukemia cells: a model of cellular cobalamin metabolism. Biochim Biophys Acta (1995) 0.92
Serum glutathione in adolescent males predicts parental coronary heart disease. Circulation (1999) 0.91
Electron transport function of a heat-stable protein and a flavoprotein in the oxidative decarboxylation of glycine by Peptococcus glycinophilus. Biochem Biophys Res Commun (1966) 0.91
Prospective study of hyperhomocysteinemia as an adverse cardiovascular risk factor in end-stage renal disease. Circulation (1998) 0.91
Unexpected inverse relationship between insulin resistance and serum homocysteine in healthy subjects. Physiol Res (2002) 0.91
Rapid analysis of cobalamin coenzymes and related corrinoid analogs by high-performance liquid chromatography. Anal Biochem (1982) 0.91
Amethopterin-induced changes in the multiple forms of dihydrofolate reductase from L1210 cells. Arch Biochem Biophys (1970) 0.90
Binding properties of the 5-methyltetrahydrofolate/methotrexate transport system in L1210 cells. Arch Biochem Biophys (1980) 0.89
Ion-dependent activation of dihydrofolate reductase from L1210 cells. Biochemistry (1967) 0.89
Relative roles of albumin and ceruloplasmin in the formation of homocystine, homocysteine-cysteine-mixed disulfide, and cystine in circulation. J Biol Chem (2001) 0.88
Reduction of homocysteine levels in coronary artery disease by low-dose folic acid combined with vitamins B6 and B12. Am J Cardiol (1999) 0.88
Vitamin B12 deficiency and multiple sclerosis. Lancet (1990) 0.87
Plasma total homocysteine levels, dietary vitamin B6 and folate intake in AD and healthy aging. J Nutr Health Aging (2003) 0.87
Pharmacological characterization of angiotensin II binding sites in the canine pancreas. Peptides (1992) 0.87
Determination of total serum sulfite by HPLC with fluorescence detection. Clin Chem (1995) 0.87
Activation of methotrexate-alpha-alanine by carboxypeptidase A-monoclonal antibody conjugate. Biochemistry (1992) 0.85
Hormone replacement therapy and cobalamin status in elderly women. Am J Clin Nutr (1996) 0.84
Cyclic adenosine 3':5'-monophosphate and methotrexate transport in L1210 cells. Cancer Res (1978) 0.84
Irreversible inactivation of the methotrexate transport system of L1210 cells by carbodiimide-activated substrates. J Biol Chem (1980) 0.84
Serum cobalamin deficiency is uncommon in multiple sclerosis. Arch Neurol (1994) 0.84
Folate uptake in L1210 cells: mediation by an adenine transport system. Biochem Biophys Res Commun (1979) 0.84
Purification and properties of 5,10-methenyltetrahydrofolate synthetase from Lactobacillus casei. J Biol Chem (1984) 0.83
Visualization of folate transport proteins by covalent labeling with fluorescein methotrexate. Adv Enzyme Regul (1990) 0.83
Effects of sulfhydryl inhibitors upon transport of folate compounds into L1210 cells. Biochem Pharmacol (1974) 0.83
Characterization of angiotensin II receptor subtypes in pancreatic acinar AR42J cells. Peptides (1995) 0.83
Receptor binding and internalization of immobilized transcobalamin II by mouse leukaemia cells. Nature (1980) 0.83
Purification of dihydrofolate reductase via amethopterin-aminoethyl starch. J Biol Chem (1968) 0.82
Accumulation of 5-methyltetrahydrofolate in cobalamin-deficient L1210 mouse leukemia cells. J Biol Chem (1982) 0.82
Receptor distribution and the endothelial uptake of transcobalamin II in liver cell suspensions. Blood (1985) 0.82
Homocysteine and coronary artery disease. Cleve Clin J Med (1995) 0.82
Lactoferrin binding by leukemia cell lines. Blood (1987) 0.82
Multiple forms of methemoglobin reductase. Arch Biochem Biophys (1969) 0.82
Accumulation of methylmalonic acid caused by vitamin B12-deficiency disrupts normal cellular metabolism in rat liver. Br J Nutr (1996) 0.82
Affinity labeling of folate transport proteins with the N-hydroxysuccinimide ester of the gamma-isomer of fluorescein-methotrexate. Biochemistry (1991) 0.82
Glial cells as a model for the role of cobalamin in the nervous system: impaired synthesis of cobalamin coenzymes in cultured human astrocytes following short-term cobalamin-deprivation. Biochem Biophys Res Commun (1992) 0.81
Carboxypeptidase-mediated release of methotrexate from methotrexate alpha-peptides. Biochemistry (1989) 0.81
Oxidation-reduction components of a reduced diphosphopyridine nucleotide dehydrogenase. Arch Biochem Biophys (1968) 0.81
Heteronuclear nuclear magnetic resonance studies of cobalt corrinoids. 15. The structure of glutathionylcobalamin: a 1H and 13C two-dimensional nuclear magnetic resonance study at 600 MHz. Biochemistry (1993) 0.81
TPNH-dependent binding of amethopterin by dihydrofolate reductase from Lactobacillus casei. Arch Biochem Biophys (1972) 0.81
Effect of N-bromosuccinimide on dihydrofolate reductase. Biochemistry (1969) 0.80
Cryptofluorescent analogs of cobalamin coenzymes: synthesis and characterization. J Inorg Biochem (1979) 0.80
Purification of B12-binding proteins using a photodissociative affinity matrix. Methods Enzymol (1986) 0.80
B12 -- dependent methionine synthetase as a potential target for cancer chemotherapy. Adv Enzyme Regul (1976) 0.80
Determinants of hyperhomocysteinemia: a matter of nature and nurture. Am J Clin Nutr (1996) 0.80
Interconversion of the multiple forms of dihydrofolate reductase from amethopterin-resistant Lactobacillus casei. Biochem Biophys Res Commun (1971) 0.80
Construction and chemotherapeutic potential of carboxypeptidase-A/monoclonal antibody conjugate. Adv Enzyme Regul (1991) 0.80
Biotin derivatives of methotrexate and folate. Synthesis and utilization for affinity purification of two membrane-associated folate transporters from L1210 cells. J Biol Chem (1991) 0.79