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Featured researches published by Tsuneo Okuyama.


Biochemical and Biophysical Research Communications | 1982

Amino acid sequence of galactosamine-containing glycopeptides in the hinge region of a human immunoglobulin D

Tatsunori Takayasu; Satoru Suzuki; Fuyuki Kametani; Nobuhiro Takahashi; Tomotaka Shinoda; Tsuneo Okuyama; Eisuke Munekata

Abstract Amino acid sequence and the location of seven galactosamine oligosaccharide moieties of the hinge region of the δ chain of human IgD NIG-65 have been determined. These oligosaccharide moieties are distributed in two distinct fashions: 1) three clusters each consisting of five amino acid residues with two consecutive attachment sites either Ala-X-Ala-Ser-Ser or Ala-X-Ala-Thr-Thr, where X can be any amino acid including proline, 2) one triplet sequence Val-Pro-Thr with one attachment site. We propose two rules with regard to the acceptor sequence for galactosamine oligosaccharides, the quintet sequence rule and triplet sequence rule.


Seibutsu Butsuri Kagaku | 1989

Analysis of human seminal plasma protein by micro two-dimensional electrophoresis (Part III)

Hiroshi Yosida; Masataka Ono; Takashi Manabe; Tsuneo Okuyama

70名のヒト精漿について変性剤を加えないミクロ二次元電気泳動を行った. 精漿蛋白の泳動像についてみるとMW5,000から1,000,000およびpI3.5からpI8の広範囲にわたり, 約80個のスポットが認められた. 精漿中のAlbおよびAlbより高分子領域の蛋白質については, ほとんどが血清にくらべてその含有量が少なかった.精漿蛋白の低分子領域 (MW5,000付近) では, 5~6個のスポットしか検出されない個体と10数個のスポットが検出される個体との2群がみられたが, このことは健康および不妊歴との相関は認められなかった. また, 精漿の低分子領域 (MW20,000付近) で精漿特異蛋白とされるγ-Seminoprotein が5本の線状のスポットとして検出された.


Biochemistry | 1983

Effect of metal substitution on the chromophore of bovine serum amine oxidase.

Shinnichiro Suzuki; Takeshi Sakurai; Akitsugu Nakahara; Takashi Manabe; Tsuneo Okuyama


Biomedical Research-tokyo | 1980

DETERMINATION OF THE COMPLETE AMINO ACID SEQUENCE OF CALMODULIN (PHENYLALANINE-RICH ACIDIC PROTEIN II) FROM BOVINE BRAIN

Hisataka Kasai; Yukio Kato; Toshiaki Isobe; Hiroshi Kawasaki; Tsuneo Okuyama


Biomedical Research-tokyo | 1983

IMMUNOHISTOCHEMICAL DEMONSTRATION OF NEURONSPECIFIC ENOLASE IN NORMAL AND NEOPLASTIC TISSUES

Takashi Nakajima; Toru Kameya; Masaru Tsumuraya; Yukio Shimosato; Toshiaki Isobe; Tsuneo Okuyama


Biochemistry | 1986

Roles of the two copper ions in bovine serum amine oxidase

Shinnichiro Suzuki; Takeshi Sakurai; Akitsugu Nakahara; Takashi Manabe; Tsuneo Okuyama


Journal of Biochemistry | 1979

Comparative study on the structure of the light chains of human immunoglobulins. II. Assignment of a new subgroup.

Nobuhiro Takahashi; Tatunori Takayasu; Toshiaki Isobe; Tomotaka Shinoda; Tsuneo Okuyama; Akira Shimizu


Biomedical Research-tokyo | 1981

The NH 2 -terminal amino acid sequence of a y-carboxyglutamic acid-containing protein from rat femur cortical bone

Yoko Otawara; Norimasa Hosoya; Sachiko Moriuchi; Hisataka Kasai; Tsuneo Okuyama


Journal of Biochemistry | 1981

Oxidation of .EPSILON.-amino group of lysyl peptides by bovine serum amine oxidase.

Osamu Oda; Takashi Manabe; Tsuneo Okuyama


Biomedical Research-tokyo | 1980

AMINO ACID SEQUENCE OF A LAMBDA BENCE JONES PROTEIN FROM A CASE OF PRIMARY AMYLOIDOSIS

Nobuhiro Takahashi; Tatsunori Takayasu; Tomotaka Shinoda; Shigenori Ito; Tsuneo Okuyama; Akira Shimizu

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Toshiaki Isobe

Tokyo Institute of Technology

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Tomotaka Shinoda

Indiana University Bloomington

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Hiroshi Kawasaki

Tokyo Metropolitan University

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Hisataka Kasai

Tokyo Metropolitan University

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Kiyotsugu Kojima

Tokyo Metropolitan University

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