Effects of selected sulfhydryl inhibitors on nonhistone chromosomal proteins of HeLa cells. 1975

F E Knock, and G S Stein, and J Davis, and R M Galt, and Y T Oester, and R Sylvester

Effects of the SH inhibitor sodium iodoacetate, alone and with adjuncts menadiol diphosphate, sodium malonate, sodium fluoride and heparin, on incorporation of tryptophane-3 H into nonhistone chromosomal proteins of HeLa cells were examined. The drugs block incorporation of tryptophane-3 H into nonhistone chromosomal proteins far more than incorporation of leucine-3 H into total cellular proteins. Drug effects on thymidine phosphorylation and DNA synthesis in HeLa cells exceed corresponding effects on fibroblasts from normal healing wounds.

UI MeSH Term Description Entries
D007461 Iodoacetates Iodinated derivatives of acetic acid. Iodoacetates are commonly used as alkylating sulfhydryl reagents and enzyme inhibitors in biochemical research. Iodoacetic Acids,Acids, Iodoacetic
D007930 Leucine An essential branched-chain amino acid important for hemoglobin formation. L-Leucine,Leucine, L-Isomer,L-Isomer Leucine,Leucine, L Isomer
D008314 Malonates Derivatives of malonic acid (the structural formula CH2(COOH)2), including its salts and esters.
D008466 Mechlorethamine A biologic alkylating agent that exerts its cytotoxic effects by forming DNA ADDUCTS and DNA interstrand crosslinks, thereby inhibiting rapidly proliferating cells. The hydrochloride is an antineoplastic agent used to treat HODGKIN DISEASE and LYMPHOMA. Chlorethazine,Chlormethine,Mechlorethamine Oxide,Mustine,Nitrogen Mustard,Nitrogen Mustard N-Oxide,Bis(2-chloroethyl)methylamine,Caryolysine,Cloramin,Embichin,Mechlorethamine Hydrochloride,Mechlorethamine Hydrochloride N-Oxide,Mechlorethamine N-Oxide,Methylchlorethamine,Mitomen,Mustargen,NSC-10107,NSC-762,Nitrogranulogen,Nitromin,Hydrochloride N-Oxide, Mechlorethamine,Hydrochloride, Mechlorethamine,Mechlorethamine Hydrochloride N Oxide,Mechlorethamine N Oxide,N-Oxide, Mechlorethamine Hydrochloride,N-Oxide, Nitrogen Mustard,NSC 10107,NSC 762,NSC10107,NSC762,Nitrogen Mustard N Oxide
D009363 Neoplasm Proteins Proteins whose abnormal expression (gain or loss) are associated with the development, growth, or progression of NEOPLASMS. Some neoplasm proteins are tumor antigens (ANTIGENS, NEOPLASM), i.e. they induce an immune reaction to their tumor. Many neoplasm proteins have been characterized and are used as tumor markers (BIOMARKERS, TUMOR) when they are detectable in cells and body fluids as monitors for the presence or growth of tumors. Abnormal expression of ONCOGENE PROTEINS is involved in neoplastic transformation, whereas the loss of expression of TUMOR SUPPRESSOR PROTEINS is involved with the loss of growth control and progression of the neoplasm. Proteins, Neoplasm
D009698 Nucleoproteins Proteins conjugated with nucleic acids. Nucleoprotein
D004254 DNA Nucleotidyltransferases Enzymes that catalyze the incorporation of deoxyribonucleotides into a chain of DNA. EC 2.7.7.-. Nucleotidyltransferases, DNA
D004273 DNA, Neoplasm DNA present in neoplastic tissue. Neoplasm DNA
D005347 Fibroblasts Connective tissue cells which secrete an extracellular matrix rich in collagen and other macromolecules. Fibroblast
D005459 Fluorides Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices. Fluoride

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