Before 2003

1984年から2003年3月の発表論文リストです。

    1. Ohtsuka, E., Tozuka, Z., Iwai, S., and Ikehara, M. (1982) A new condensing reagent, 1-(2,4,6-triisopropylbenzenesulfonyl)-5-(pyridin-2-yl)tetrazolide and its use in the synthesis of lambda cro binding heptadecanucleotide on a polymer support. Nucleic Acids Res. 10, 6235-6241

 

    1. Ohtsuka, E., Taniyama, Y., Iwai, S., Yoshida, T., and Ikehara, M. (1984) Deoxyribonucleic acids and related compounds. VIII. Solid-phase synthesis of deoxyribooligonucleotides with 3′-modification by elongation in the 3′-direction. Chem. Pharm. Bull. 32, 85-93

 

    1. Ikehara, M., Ohtsuka, E., Tokunaga, T., Taniyama, Y., Iwai, S., Kitano, K., Miyamoto, S., Ohgi, T., Sakuragawa, Y., Fujiyama, K., Ikari, T., Kobayashi, M., Miyake, T., Shibahara, S., Ono, A., Ueda, T., Tanaka, T., Baba, H., Miki, T., Sakurai, A., Oishi, T., Chisaka, O., and Matsubara, K. (1984) Synthesis of a gene for human growth hormone and its expression in Escherichia coli. Proc. Natl. Acad. Sci. USA 81, 5956-5960

 

    1. Tokunaga, T., Iwai, S., Gomi, H., Kodama, K., Ohtsuka, E., Ikehara, M., Chisaka, O., and Matsubara, K. (1985) Expression of a synthetic human growth hormone gene in yeast. Gene 39, 117-120

 

    1. Ohtsuka, E., Iwai, S., Tokunaga, T., and Ikehara, M. (1985) Deoxyribonucleic acids (DNA) and related compounds. XIII. Synthesis of DNA duplexes containing a ribosome binding site. Chem. Pharm. Bull. 33, 3153-3159

 

    1. Iwai, S., Asaka, M., Inoue, H., and Ohtsuka, E. (1985) A new solid-phase synthesis of ribooligonucleotides using the 3′-phosphoro-p-anisidate protecting group for stepwise synthesis in the 3′-direction. Chem. Pharm. Bull. 33, 4618-4620

 

    1. Ikehara, M., Fujimoto, K., Aoyama, Y., Yanase, K., Matsugi, J., Inaoka, T., Tokunaga, T., Uesugi, S., Iwai, S., and Ohtsuka, E. (1986) Synthesis of a gene coding for human lysozyme. Chem. Pharm. Bull. 34, 2202-2208

 

    1. Itoh, H., Kozasa, T., Nagata, S., Nakamura, S., Katada, T., Ui, M., Iwai, S., Ohtsuka, E., Kawasaki, H., Suzuki, K., and Kaziro, Y. (1986) Molecular cloning and sequence determination of cDNAs for alfa subunits of the guanine nucleotide-binding proteins Gs, Gi, and Go from rat brain. Proc. Natl. Acad. Sci. USA 83, 3776-3780

 

    1. Chisaka, O., Iwai, S., Ohtsuka, E., and Matsubara, K. (1986) Cloning a defined region of DNA using a limited action of DNA polymerase: Application to dissection of hepatitis B virus surface antigen gene. Gene 45, 19-25

 

    1. Kawase, Y., Iwai, S., Inoue, H., Miura, K., and Ohtsuka, E. (1986) Studies on nucleic acid interactions. I. Stabilities of mini-duplexes (dG2A4XA4G2 ・ dC2T4YT4C2) and self-complementary d(GGGAAXYTTCCC) containing deoxyinosine and other mismatched bases. Nucleic Acids Res. 14, 7727-7736

 

    1. Iwai, S., Imura, A., Inoue, Y., Inoue, H., Miura, K., Tokunaga, T., Ikehara, M., and Ohtsuka, E. (1986) Deoxyribonucleic acids and related compounds. XXII. Synthesis of genes for human nerve growth factor and its fused protein. Chem. Pharm. Bull. 34, 4724-4730

 

    1. Miura, K., Inoue, Y., Nakamori, H., Iwai, S., Ohtsuka, E., Ikehara, M., Noguchi, S., and Nishimura, S. (1986) Synthesis and expression of a synthetic gene for the activated human c-Ha-ras protein. Jpn. J. Cancer Res. 77, 45-51

 

    1. Iwai, S., Koizumi, M., Ikehara, M., and Ohtsuka, E. (1987) Solid-phase synthesis of protected oligonucleotide blocks: Applications to block condensation on a polymer support and synthesis of a 3′-modified oligonucleotide. Tetrahedron 43, 59-67

 

    1. Kuchino, Y., Mori, F., Kasai, H., Inoue, H., Iwai, S., Miura, K., Ohtsuka, E., and Nishimura, S. (1987) Misreading of DNA templates containing 8-hydroxydeoxyguanosine at the modified base and at adjacent residues. Nature 327, 77-79

 

    1. Iwai, S., Yamada, E., Asaka, M., Hayase, Y., Inoue, H., and Ohtsuka, E. (1987) A new solid-phase synthesis of oligoribonucleotides by the phosphoro-p-anisidate method using tetrahydrofuranyl protection of 2′-hydroxyl groups. Nucleic Acids Res. 15, 3761-3772

 

    1. Inoue, H., Hayase, Y., Iwai, S., and Ohtsuka, E. (1987) Sequence-dependent hydrolysis of RNA using modified oligonucleotide splints and RNase H. FEBS Lett. 215, 327-330

 

    1. Inoue, H., Hayase, Y., Imura, A., Iwai, S., Miura, K., and Ohtsuka,E. (1987) Synthesis and hybridization studies on two complementary nona(2′-O-methyl)ribonucleotides. Nucleic Acids Res. 15, 6131-6148

 

    1. Kawase, Y., Iwai, S., and Ohtsuka, E. (1988) Synthesis and properties of hexanucleotides containing deoxyinosine. Chem. Pharm. Bull. 36, 118-121

 

    1. Koizumi, M., Iwai, S., and Ohtsuka, E. (1988) Construction of a series of several self-cleaving RNA duplexes using synthetic 21-mers. FEBS Lett. 228, 228-230

 

    1. Iwai, S. and Ohtsuka, E. (1988) Synthesis of oligoribonucleotides by the phosphoramidite approach using 5′-levulinyl and 2′-tetrahydrofuranyl protection. Tetrahedron Lett. 29, 5383-5386

 

    1. Iwai, S. and Ohtsuka, E. (1988) 5′-Levulinyl and 2′-tetrahydrofuranyl protection for the synthesis of oligoribonucleotides by the phosphoramidite approach. Nucleic Acids Res. 16, 9443-9456

 

    1. Koizumi, M., Iwai, S., and Ohtsuka, E. (1988) Cleavage of specific sites of RNA by designed ribozymes. FEBS Lett. 239, 285-288

 

    1. Kawase, Y., Iwai, S., and Ohtsuka, E. (1989) Synthesis and thermal stability of dodecadeoxyribonucleotides containing deoxyinosine pairing with four major bases. Chem. Pharm. Bull. 37, 599-601

 

    1. Kawase, Y., Koizumi, M., Iwai, S., and Ohtsuka, E. (1989) Synthesis of wobble pairing oligoribonucleotides. Chem. Pharm. Bull. 37, 2313-2317

 

    1. Koizumi, M., Hayase, Y., Iwai, S., Kamiya, H., Inoue, H., and Ohtsuka, E. (1989) Design of RNA enzymes distinguishing a single base mutation in RNA. Nucleic Acids Res. 17, 7059-7071

 

    1. Kanaya, S., Kohara, A., Miura, Y., Sekiguchi, A., Iwai, S., Inoue, H., Ohtsuka, E., and Ikehara, M. (1990) Identification of the amino acid residues involved in an active site of Escherichia coli ribonuclease H by site-directed mutagenesis. J. Biol. Chem. 265, 4615-4621

 

    1. Katahira, M., Lee, S. J., Kobayashi, Y., Sugeta, H., Kyogoku, Y., Iwai, S., Ohtsuka, E., Benevides, J. M., and Thomas, G. J., Jr. (1990) Structure in solution of the RNA・DNA hybrid (rA)8・(dT)8 determined by NMR and Raman spectroscopy. J. Am. Chem. Soc. 112, 4508-4512

 

    1. Iwai, S., Sasaki, T., and Ohtsuka, E. (1990) Large scale synthesis of oligoribonucleotides on a solid support: Synthesis of a catalytic RNA duplex. Tetrahedron 46, 6673-6688

 

    1. Murata, T., Iwai, S., and Ohtsuka, E. (1990) Synthesis and characterization of a substrate for T4 endonuclease V containing a phosphorodithioate linkage at the thymine dimer site. Nucleic Acids Res. 18, 7279-7286

 

    1. Nakamura, H., Oda, Y., Iwai, S., Inoue, H., Ohtsuka, E., Kanaya, S., Kimura, S., Katsuda, C., Katayanagi, K., Morikawa, K., Miyashiro, H., and Ikehara, M. (1991) How does RNase H recognize a DNA・RNA hybrid ? Proc. Natl. Acad. Sci. USA 88, 11535-11539

 

    1. Murata, T., Iwai, S., and Ohtsuka, E. (1992) Synthesis of a dodecadeoxyribooligonucleotide containing a 3′-thio analogue of thymidine photodimer. Heterocycles 33, 529-531

 

    1. Hori, N., Iwai, S., Inoue, H., and Ohtsuka, E. (1992) Photoaffinity labeling of T4 endonuclease V with a substrate containing a phenyldiazirine derivative. J. Biol. Chem. 267, 15591-15594

 

    1. Iwai, S., Pritchard, C., Mann, D. A., Karn, J., and Gait, M. J. (1992) Recognition of the high affinity binding site in rev-response element RNA by the human immunodeficiency virus type-1 rev protein. Nucleic Acids Res. 20, 6465-6472

 

    1. Hamy, F., Asseline, U., Grasby, J., Iwai, S., Pritchard, C., Slim, G., Butler, P. J. G., Karn, J., and Gait, M. J. (1993) Hydrogen-bonding contacts in the major groove are required for human immunodeficiency virus type-1 tat protein recognition of TAR RNA. J. Mol. Biol. 230, 111-123

 

    1. Kamiya, H., Murata, N., Murata, T., Iwai, S., Matsukage, A., Masutani, C., Hanaoka, F., and Ohtsuka, E. (1993) Cyclobutane thymine dimers in a ras proto-oncogene hot spot activate the gene by point mutation. Nucleic Acids Res. 21, 2355-2361

 

    1. Oda, Y., Iwai, S., Ohtsuka, E., Ishikawa, M., Ikehara, M., and Nakamura, H. (1993) Binding of nucleic acids to E. coli RNase HI observed by NMR and CD spectroscopy. Nucleic Acids Res. 21, 4690-4695

 

    1. Lee, B. J., Sakashita, H., Ohkubo, T., Ikehara, M., Doi, T., Morikawa, K., Kyogoku, Y., Osafune, T., Iwai, S., and Ohtsuka, E. (1994) Nuclear magnetic resonance study of the interaction of T4 endonuclease V with DNA. Biochemistry 33, 57-64

 

    1. Iwai, S., Maeda, M., Shimada, Y., Hori, N., Murata, T., Morioka, H., and Ohtsuka, E. (1994) Endonuclease V from bacteriophage T4 interacts with its substrate in the minor groove. Biochemistry 33, 5581-5588

 

    1. Uchiyama, Y., Miura, Y., Inoue, H., Ohtsuka, E., Ueno, Y., Ikehara, M., and Iwai, S. (1994) Studies of the interactions between Escherichia coli ribonuclease HI and its substrate. J. Mol. Biol. 243, 782-791

 

    1. Uchiyama, Y., Iwai, S., Ueno, Y., Ikehara, M., and Ohtsuka, E. (1994) Role of the Mg2+ ion in the Escherichia coli ribonuclease HI reaction. J. Biochem. 116, 1322-1329

 

    1. Iwai, S., Maeda, M., Shirai, M., Shimada, Y., Osafune, T., Murata, T., and Ohtsuka, E. (1995) Reaction mechanism of T4 endonuclease V determined by analysis using modified oligonucleotide duplexes. Biochemistry 34, 4601-4609

 

    1. Iwai, S., Kataoka, S., Wakasa, M., Ohtsuka, E., and Nakamura, H. (1995) Recognition of 2′-hydroxyl groups by Escherichia coli ribonuclease HI. FEBS Lett. 368, 315-320

 

    1. Vassylyev, D. G., Kashiwagi, T., Mikami, Y., Ariyoshi, M., Iwai, S., Ohtsuka, E., and Morikawa, K. (1995) Atomic model of a pyrimidine dimer excision repair enzyme complexed with a DNA substrate: Structural basis for damaged DNA recognition. Cell 83, 773-782

 

    1. Nishizaki, T., Iwai, S., Ohkubo, T., Kojima, C., Nakamura, H., Kyogoku, Y., and Ohtsuka, E. (1996) Solution structures of DNA duplexes containing a DNA・RNA hybrid region, d(GG)r(AGAU)d(GAC) ・ d(GTCATCTCC) and d(GGAGA)r(UGAC) ・ d(GTCATCTCC). Biochemistry 35, 4016-4025

 

    1. Iwai, S., Shimizu, M., Kamiya, H., and Ohtsuka, E. (1996) Synthesis of a phosphoramidite coupling unit of the pyrimidine (6-4) pyrimidone photoproduct and its incorporation into oligodeoxynucleotides. J. Am. Chem. Soc. 118, 7642-7643

 

    1. Iwai, S., Wakasa, M., Ohtsuka, E., Kanaya, S., Kidera, A., and Nakamura, H. (1996) Interaction of the basic protrusion of Escherichia coli ribonuclease HI with its substrate. J. Mol. Biol. 263, 699-706

 

    1. Nakaya, T., Iwai, S., Fujinaga, K., Sato, Y., Ohtsuka, E., and Ikuta, K. (1997) Decoy approach using RNA-DNA chimera oligonucleotides to inhibit the regulatory function of human immunodeficiency virus type 1 Rev protein. Antimicrob. Agents Chemother. 41, 319-325

 

    1. Fujiwara, Y. and Iwai, S. (1997) Thermodynamic studies of the hybridization properties of photolesions in DNA. Biochemistry 36, 1544-1550

 

    1. Nishizaki, T., Iwai, S., Ohtsuka, E., and Nakamura, H. (1997) Solution structure of an RNA・2′-O-methylated RNA hybrid duplex containing an RNA・DNA hybrid segment at the center. Biochemistry 36, 2577-2585

 

    1. Hitomi, K., Kim, S.-T., Iwai, S., Harima, N., Otoshi, E., Ikenaga, M., and Todo, T. (1997) Binding and catalytic properties of Xenopus (6-4) photolyase. J. Biol. Chem. 272, 32591-32598

 

    1. Nakajima, S., Sugiyama, M., Iwai, S., Hitomi, K., Otoshi, E., Kim, S.-T., Jiang, C.-Z., Todo, T., Britt, A. B., and Yamamoto, K. (1998) Cloning and characterization of a gene (UVR3) required for photorepair of 6-4 photoproducts in Arabidopsis thaliana. Nucleic Acids Res. 26, 638-644

 

    1. Kamiya, H., Iwai, S., and Kasai, H. (1998) The (6-4) photoproduct of thymine-thymine induces targeted substitution mutations in mammalian cells. Nucleic Acids Res. 26, 2611-2617

 

    1. Sugasawa, K., Ng, J. M. Y., Masutani, C., Iwai, S., van der Spek, P. J., Eker, A. P. M., Hanaoka, F., Bootsma, D., and Hoeijmakers, J. H. J. (1998) Xeroderma pigmentosum group C protein complex is the initiator of global genome nucleotide excision repair. Mol. Cell 2, 223-232

 

    1. Mizukoshi, T., Hitomi, K., Todo, T., and Iwai, S. (1998) Studies on the chemical synthesis of oligonucleotides containing the (6-4) photoproduct of thymine-cytosine and its repair by (6-4) photolyase. J. Am. Chem. Soc. 120, 10634-10642

 

    1. Iwai, S., Mizukoshi, T., Fujiwara, Y., Masutani, C., Hanaoka, F., and Hayakawa, Y. (1999) Benzimidazolium triflate-activated synthesis of (6-4) photoproduct-containing oligonucleotides and its application. Nucleic Acids Res. 27, 2299-2303

 

    1. Masutani, C., Araki, M., Yamada, A., Kusumoto, R., Nogimori, T., Maekawa, T., Iwai, S., and Hanaoka, F. (1999) Xeroderma pigmentosum variant (XP-V) correcting protein from HeLa cells has a thymine dimer bypass DNA polymerase activity. EMBO J. 18, 3491-3501

 

    1. Masutani, C., Kusumoto, R., Yamada, A., Dohmae, N., Yokoi, M., Yuasa, M., Araki, M., Iwai, S., Takio, K., and Hanaoka, F. (1999) The XPV (xeroderma pigmentosum variant) gene encodes human DNA polymerase eta. Nature 399, 700-704

 

    1. Fujiwara, Y., Masutani, C., Mizukoshi, T., Kondo, J., Hanaoka, F., and Iwai, S. (1999) Characterization of DNA recognition by the human UV-damaged DNA-binding protein. J. Biol. Chem. 274, 20027-20033

 

    1. Kanno, S., Iwai, S., Takao, M., and Yasui, A. (1999) Repair of apurinic/apyrimidinic sites by UV damage endonuclease; a repair protein for UV and oxidative damage. Nucleic Acids Res. 27, 3096-3103

 

    1. Ohtsubo, T., Nishioka, K., Imaiso, Y., Iwai, S., Shimokawa, H., Oda, H., Fujiwara, T., and Nakabeppu, Y. (2000) Identification of human MutY homolog (hMYH) as a repair enzyme for 2-hydroxyadenine in DNA and detection of multiple forms of hMYH located in nuclei and mitochondria. Nucleic Acids Res. 28, 1355-1364

 

    1. Hitomi, K., Okamoto, K., Daiyasu, H., Miyashita, H., Iwai, S., Toh, H., Ishiura, M., and Todo, T. (2000) Bacterial cryptochrome and photolyase: Characterization of two photolyase-like genes of Synechocystis sp. PCC6803. Nucleic Acids Res. 28, 2353-2362

 

    1. Masutani, C., Kusumoto, R., Iwai, S., and Hanaoka, F. (2000) Mechanisms of accurate translesion synthesis by human DNA polymerase eta. EMBO J. 19, 3100-3109

 

    1. Yamada, A., Masutani, C., Iwai, S., and Hanaoka, F. (2000) Complementation of defective translesion synthesis and UV light sensitivity in xeroderma pigmentosum variant cells by human and mouse DNA polymerase eta. Nucleic Acids Res. 28, 2473-2480

 

    1. Ohashi, E., Ogi, T., Kusumoto, R., Iwai, S., Masutani, C., Hanaoka, F., and Ohmori, H. (2000) Error-prone bypass of certain DNA lesions by the human DNA polymerase kappa. Genes Dev. 14, 1589-1594

 

    1. Kobayashi, Y., Ishikawa, T., Hirayama, J., Daiyasu, H., Kanai, S., Toh, H., Fukuda, I., Tsujimura, T., Terada, N., Kamei, Y., Yuba, S., Iwai, S., and Todo, T. (2000) Molecular analysis of zebrafish photolyase/cryptochrome family: Two types of cryptochromes present in zebrafish. Genes Cells 5, 725-738

 

    1. Tissier, A., Frank, E. G., McDonald, J. P., Iwai, S., Hanaoka, F., and Woodgate, R. (2000) Misinsertion and bypass of thymine-thymine dimers by human DNA polymerase iota. EMBO J. 19, 5259-5266

 

    1. Iwai, S. (2000) Synthesis of thymine glycol containing oligonucleotides from a building block with the oxidized base. Angew. Chem. Int. Ed. 39, 3874-3876

 

    1. Haruki, M., Tsunaka, Y., Morikawa, M., Iwai, S., and Kanaya, S. (2000) Catalysis by Escherichia coli ribonuclease HI is facilitated by a phosphate group of the substrate. Biochemistry 39, 13939-13944

 

    1. Kusumoto, R., Masutani, C., Sugasawa, K., Iwai, S., Araki, M., Uchida, A., Mizukoshi, T., and Hanaoka, F. (2001) Diversity of the damage recognition step in the global genomic nucleotide excision repair in vitro. Mutation Res. 485, 219-227

 

    1. Sugasawa, K., Okamoto, T., Shimizu, Y., Masutani, C., Iwai, S., and Hanaoka, F. (2001) A multistep damage recognition mechanism for global genomic nucleotide excision repair. Genes Dev. 15, 507-521

 

    1. Hitomi, K., Nakamura, H., Kim, S.-T., Mizukoshi, T., Ishikawa, T., Iwai, S., and Todo, T. (2001) Role of two histidines in the (6-4) photolyase reaction. J. Biol. Chem. 276, 10103-10109

 

    1. Ura, K., Araki, M., Saeki, H., Masutani, C., Ito, T., Iwai, S., Mizukoshi, T., Kaneda, Y., and Hanaoka, F. (2001) ATP-dependent chromatin remodeling facilitates nucleotide excision repair of UV-induced DNA lesions in synthetic dinucleosomes. EMBO J. 20, 2004-2014

 

    1. Ishikawa, T., Uematsu, N., Mizukoshi, T., Iwai, S., Iwasaki, H., Masutani, C., Hanaoka, F., Ueda, R., Ohmori, H., and Todo, T. (2001) Mutagenic and nonmutagenic bypass of DNA lesions by Drosophila DNA polymerases dpol eta and dpol iota. J. Biol. Chem. 276, 15155-15163

 

    1. Iwai, S. (2001) Synthesis and thermodynamic studies of oligonucleotides containing the two isomers of thymine glycol. Chem. Eur. J. 7, 4343-4351

 

    1. Boudsocq, F., Iwai, S., Hanaoka, F., and Woodgate, R. (2001) Sulfolobus solfataricus P2 DNA polymerase IV (Dpo4): an archaeal DinB-like DNA polymerase with lesion-bypass properties akin to eukaryotic pol eta. Nucleic Acids Res. 29, 4607-4616

 

    1. Mizukoshi, T., Kodama, T. S., Fujiwara, Y., Furuno, T., Nakanishi, M., and Iwai, S. (2001) Structural study of DNA duplexes containing the (6-4) photoproduct by fluorescence resonance energy transfer. Nucleic Acids Res. 29, 4948-4954

 

    1. Sugasawa, K., Shimizu, Y., Iwai, S., and Hanaoka, F. (2002) A molecular mechanism for DNA damage recognition by the xeroderma pigmentosum group C protein complex. DNA Repair 1, 95-107

 

    1. Sakai, Y., Furuichi, M., Takahashi, M., Mishima, M., Iwai, S., Shirakawa, M., and Nakabeppu, Y. (2002) A molecular basis for the selective recognition of 2-hydroxy-dATP and 8-oxo-dGTP by human MTH1. J. Biol. Chem. 277, 8579-8587

 

    1. Kusumoto, R., Masutani, C., Iwai, S., and Hanaoka, F. (2002) Translesion synthesis by human DNA polymerase eta across thymine glycol lesions. Biochemistry 41, 6090-6099

 

    1. Hey, T., Lipps, G., Sugasawa, K., Iwai, S., Hanaoka, F., and Krauss, G. (2002) The XPC-HR23B complex displays high affinity and specificity for damaged DNA in a true-equilibrium fluorescence assay. Biochemistry 41, 6583-6587
    2. Otsuka, C., Kobayashi, K., Kawaguchi, N., Kunitomi, N., Moriyama, K., Hata, Y., Iwai, S., Loakes, D., Noskov, V.N., Pavlov, Y., and Negishi, K. (2002) Use of yeast transformation by oligonucleotides to study DNA lesion bypass in vivo. Mutation Res. 502, 53-60

 

    1. Takahashi, M., Maraboeuf, F., Sakai, Y., Yakushiji, H., Mishima, M., Shirakawa, M., Iwai, S., Hayakawa, H., Sekiguchi, M., and Nakabeppu, Y. (2002) Role of tryptophan residues in the recognition of mutagenic oxidized nucleotides by human antimutator MTH1 protein. J. Mol. Biol. 319, 129-139

 

    1. Servant, L., Cazaux, C., Bieth, A., Iwai, S., Hanaoka, F., and Hoffmann, J.-S. (2002) A role for DNA polymerase beta in mutagenic UV lesion bypass. J. Biol. Chem. 277, 50046-50053

 

    1. Shimizu, Y., Iwai, S., Hanaoka, F., and Sugasawa, K. (2003) Xeroderma pigmentosum group C protein interacts physically and functionally with thymine DNA glycosylase. EMBO J. 22, 164-173

 

  1. Futami, T., Miyagishi, M., Iwai, S., Seki, M., and Taira, K. (2003) Stimulatory effect of an indirectly attached RNA helicase-recruiting sequence on the suppression of gene expression by antisense oligonucleotides. Antisense Nucleic Acid Drug Dev. 13, 9-17