Biomaterial Database

Comparison of inhibition of erythrocyte pyrimidine 5'-nucleotidase and delta-aminolevulinic acid dehydratase by lead. 1988

K Tomokuni, and M Ichiba

Department of Community Health Science, Saga Medical School, Japan.

The effect of lead on the activities of erythrocyte pyrimidine 5'-nucleotidase (P5N) and delta-aminolevulinic acid dehydratase (ALAD) was investigated in control and lead-exposed workers. The inhibitory effect of lead in vivo and in vitro was more remarkable on the ALAD than on the P5N activity values. It was demonstrated that the pH optimum of both ALAD and P5N in lead workers shifts to the acidic side (nearly pH 6.0) compared to that in control workers.

UI	MeSH Term	Description	Entries
D007854	Lead	A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.2, symbol Pb.
D008297	Male		Males
D009708	Nucleotidases	A class of enzymes that catalyze the conversion of a nucleotide and water to a nucleoside and orthophosphate. EC 3.1.3.-.
D004912	Erythrocytes	Red blood cells. Mature erythrocytes are non-nucleated, biconcave disks containing HEMOGLOBIN whose function is to transport OXYGEN.	Blood Cells, Red,Blood Corpuscles, Red,Red Blood Cells,Red Blood Corpuscles,Blood Cell, Red,Blood Corpuscle, Red,Erythrocyte,Red Blood Cell,Red Blood Corpuscle
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000623	Porphobilinogen Synthase	An enzyme that catalyzes the formation of porphobilinogen from two molecules of 5-aminolevulinic acid. EC 4.2.1.24.	Aminolevulinate Hydro-Lyase,Aminolevulinic Acid Dehydratase,ALA-Dehydrase,delta-Aminolevulinate Dehydratase,delta-Aminolevulinic Acid Dehydratase,ALA Dehydrase,Acid Dehydratase, Aminolevulinic,Acid Dehydratase, delta-Aminolevulinic,Aminolevulinate Hydro Lyase,Dehydratase, Aminolevulinic Acid,Dehydratase, delta-Aminolevulinate,Dehydratase, delta-Aminolevulinic Acid,Hydro-Lyase, Aminolevulinate,Synthase, Porphobilinogen,delta Aminolevulinate Dehydratase,delta Aminolevulinic Acid Dehydratase
D015720	5'-Nucleotidase	A glycoprotein enzyme present in various organs and in many cells. The enzyme catalyzes the hydrolysis of a 5'-ribonucleotide to a ribonucleoside and orthophosphate in the presence of water. It is cation-dependent and exists in a membrane-bound and soluble form. EC 3.1.3.5.	5'-AMP Nucleotidase,AMP Phosphatase,Adenylate Phosphatase,Antigens, CD73,CD73 Antigens,Cytidylate Phosphatase,Ecto-5'-Nucleotidase,IMP Nucleotidase,IMP Phosphatase,Inosinate Phosphatase,Pyrimidine 5'-Nucleotidase,Thymidine Phosphatase,Uridylate 5'-Nucleotidase,5'-Nucleotidase Phosphoribolase,Antigen, CD73,IMPase,5' AMP Nucleotidase,5' Nucleotidase,5' Nucleotidase Phosphoribolase,CD73 Antigen,Ecto 5' Nucleotidase,Pyrimidine 5' Nucleotidase,Uridylate 5' Nucleotidase