Mammalian glycinamide ribonucleotide transformylase: purification and some properties. 1985

C A Caperelli

Glycinamide ribonucleotide transformylase, the first of the two formyl group transferases of de novo purine biosynthesis requiring 10-formyltetrahydrofolate, has been purified 1500-fold, nearly to homogeneity, from the murine lymphoma cell line L5178Y. Purification of the enzyme was facilitated by the use of a gelatin protease "affinity" resin. This mammalian enzyme is a monomer of approximate Mr 110 000. The kinetic studies are consistent with a sequential reaction mechanism and yield Michaelis constants of 0.4 mM for the substrate, glycinamide ribonucleotide, and 0.25 microM for the cofactor analogue 10-formyl-5,8-dideazafolate. A minimum Vmax of 2 mumol/(min . mg) was obtained for the purified enzyme, from which a turnover number of 4 s-1 was calculated.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008223 Lymphoma A general term for various neoplastic diseases of the lymphoid tissue. Germinoblastoma,Lymphoma, Malignant,Reticulolymphosarcoma,Sarcoma, Germinoblastic,Germinoblastic Sarcoma,Germinoblastic Sarcomas,Germinoblastomas,Lymphomas,Lymphomas, Malignant,Malignant Lymphoma,Malignant Lymphomas,Reticulolymphosarcomas,Sarcomas, Germinoblastic
D008970 Molecular Weight The sum of the weight of all the atoms in a molecule. Molecular Weights,Weight, Molecular,Weights, Molecular
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D004591 Electrophoresis, Polyacrylamide Gel Electrophoresis in which a polyacrylamide gel is used as the diffusion medium. Polyacrylamide Gel Electrophoresis,SDS-PAGE,Sodium Dodecyl Sulfate-PAGE,Gel Electrophoresis, Polyacrylamide,SDS PAGE,Sodium Dodecyl Sulfate PAGE,Sodium Dodecyl Sulfate-PAGEs
D000217 Acyltransferases Enzymes from the transferase class that catalyze the transfer of acyl groups from donor to acceptor, forming either esters or amides. (From Enzyme Nomenclature 1992) EC 2.3. Acyltransferase
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D046911 Macromolecular Substances Compounds and molecular complexes that consist of very large numbers of atoms and are generally over 500 kDa in size. In biological systems macromolecular substances usually can be visualized using ELECTRON MICROSCOPY and are distinguished from ORGANELLES by the lack of a membrane structure. Macromolecular Complexes,Macromolecular Compounds,Macromolecular Compounds and Complexes,Complexes, Macromolecular,Compounds, Macromolecular,Substances, Macromolecular
D051026 Phosphoribosylglycinamide Formyltransferase An enzyme that catalyzes the transfer of a formyl group from N10-formyltetrahydrofolate to N1-(5-phospho-D-ribosyl)glycinamide to yield N2-formyl-N1-(5-phospho-D-ribosyl)glycinamide and tetrahydrofolate. It plays a role in the de novo purine biosynthetic pathway. 2-Amino-N-Ribosylacetamide 5'-Phosphate Transformylase,5'-Phosphoribosylglycinamide Transformylase,GAR Formyltransferase,GAR Transformylase,GARTFase,Glycinamide Ribonucleotide Transformylase,Glycinamideribotide Transformylase,2 Amino N Ribosylacetamide 5' Phosphate Transformylase,5' Phosphoribosylglycinamide Transformylase,5'-Phosphate Transformylase, 2-Amino-N-Ribosylacetamide,Formyltransferase, GAR,Formyltransferase, Phosphoribosylglycinamide,Ribonucleotide Transformylase, Glycinamide,Transformylase, 2-Amino-N-Ribosylacetamide 5'-Phosphate,Transformylase, 5'-Phosphoribosylglycinamide,Transformylase, GAR,Transformylase, Glycinamide Ribonucleotide,Transformylase, Glycinamideribotide
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus

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