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- Publications
- Influence
Studies on Separation of Amino Acids and Related Compounds. V. A Racemization Test in Peptide Synthesis by the Use of an Amino Acid Analyzer
- N. Izumiya, M. Muraoka, H. Aoyagi
- Chemistry
- 1 December 1971
Several tripeptides, H-Gly-DL-Ala-B-OH, in which B residues are DL-alanine, L-valine, L-leucine, L-phenyl-alanine, L-proline, and L-serine have been synthesized and the separation of each… Expand
Comparison of Oxidation Products from DNA Components by γ-Irradiation and Fenton-Type Reactions
- Naoko Murata-Kamiya, H. Kamiya, M. Muraoka, H. Kaji, H. Kasai
- Chemistry
- 1 June 1997
The four 2'-deoxyribonucleosides were gamma-irradiated or were aerobically treated with Fenton-type-reagents, Fe(II)-EDTA or a renal carcinogen Fe(II)-nitrilotriacetic acid (NTA) under the neutral… Expand
Copolymers of adenylic and 2-aminoadenylic acids. Effect of progressive changes in hydrogen bonding and stacking on interaction with poly(uridylic acid).
- M. Muraoka, H. Miles, F. Howard
- Chemistry, Medicine
- Biochemistry
- 27 May 1980
Random copolymers of adenylic acid and 2-aminoadenylic acid form both double and triple helices with poly(uridylic acid) [poly(U)]. Transition temperatures of two-stranded helices increase with 2NH2A… Expand
Genotoxicity of ribo- and deoxyribonucleosides of 8-hydroxyguanine, 5-hydroxycytosine, and 2-hydroxyadenine: induction of SCE in human lymphocytes and mutagenicity in Salmonella typhimurium TA 100.
- K. Arashidani, N. Iwamoto-Tanaka, M. Muraoka, H. Kasai
- Biology, Medicine
- Mutation research
- 17 July 1998
The induction of SCE by ribo- and deoxyribonucleosides of 8-hydroxyguanine, 5-hydroxycytosine, and 2-hydroxyadenine was tested using human peripheral blood lymphocytes. All of these compounds caused… Expand
Synthesis and Properties of 2′4′- and 3′-5′-Linked Ribodinucleoside Monophosphates Containing 2-Aminoadenosine and Uridine
- M. Muraoka, Akiko Iida, S. Takahashi, T. Ebata, S. Uesugi
- Chemistry
- 1 September 1991
Abstract Self complementary diribonucleoside monophosphates containing 2-aminoadenosine (n2A) and uridine (U) residues, (2′-5′) n2ApU (1), (3′-5′) n2ApU (2), (2′-5′) Upn2A (3) and (3′-5′) Upn2A (4),… Expand
The effects of various GTP analogues on microtubule assembly.
- M. Muraoka, H. Fukuzawa, +7 authors H. Sakai
- Chemistry, Medicine
- Cell structure and function
- 1 April 1999
We synthesized 27 GTP analogues with modification or substitution at positions C2, C6, C8 and ribose moiety to investigate their effect on microtubule (Mt) assembly. It was found that C2 and C6 are… Expand
Induction of metallothionein synthesis in transplanted murine tumors by X irradiation.
- K. Shibuya, M. Satoh, M. Muraoka, Y. Watanabe, M. Oida, H. Shimizu
- Biology, Medicine
- Radiation research
- 1 July 1995
Although recent studies have shown that radiation can induce metallothionein (MT) synthesis in normal tissues, the induction of tumor MT synthesis by irradiation has not been reported. We examined… Expand
Synthesis and Properties of 2,6-Diamino-8,2'-anhydro-8-mercapto-9-β-D-arabinofuranosylpurine
- M. Muraoka
- Chemistry
- 25 December 1981
2, 6-Diamino-9-β-D-ribofuranosylpurine (I) was brominated with saturated bromine-water to the 8-bromo compound (II), which was tosylated at the 2'-hydroxygroup via the 2', 3'-O-dibutylstannylene… Expand
Syntheses of 2-acylaminoacetamidine and 3-acylaminopropionamidine derivatives.
- T. Ueda, Y. Okamoto, T. Tsuji, M. Muraoka
- Chemistry, Medicine
- Chemical & pharmaceutical bulletin
- 25 December 1968
For the purpose to examine as to their antiviral activities, 2-acylaminoacetamidine (II) and 3-acylaminopropionamidine hydrochlorides (III) were synthesized from the corresponding nitriles via ethyl… Expand
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