C-TERMINUS MODIFICATION METHOD, C-TERMINUS IMMOBILIZATION METHOD AND ANALYSIS METHOD FOR PROTEIN OR PEPTIDE

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United States of America Patent

APP PUB NO 20090325227A1
SERIAL NO

12090747

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Abstract

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The present invention provides a method for inexpensively, easily and efficiently modifying the C-terminus of a protein or peptide; a method for easily and reliably isolating a C-terminal peptide fragment of a protein or peptide; and a method for rapidly, accurately and reliably determining an amino acid sequence of a protein or peptide by using a mass spectroscope. A method comprising the step of adding a formylation reagent and a catalyst to a protein or peptide to convert a carboxyl group into an aldehyde group. A method comprising the step of reacting a nucleophilic reagent with the aldehyde group to modify the C-terminus of the protein or peptide. A method comprising the step of reacting a support having a nucleophilic group to immobilize the protein or peptide. A method comprising the step of fragmenting the immobilized protein or peptide, washing the support, and isolating the C-terminal peptide fragment from the support. A method comprising the step of subjecting the isolated C-terminal peptide fragment to mass spectrometry and determining an amino acid sequence.

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Patent Owner(s)

Patent OwnerAddress
SHIMADZU CORPORATION1 NISHINOKYO-KUWABARACHO NAKAGYO-KU KYOTO-SHI KYOTO 604-8511
OSAKA UNIVERSITY1-1 YAMADAOKA SUITA-SHI OSAKA 5650871
NARA WOMEN'S UNIVERSITYKITAUOYAHIGASHI-MACHI NARA-SHI NARA 630-8506

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ando, Eiji Kyoto, JP 42 270
Kuyama, Hiroki Kyoto, JP 14 69
Nakazawa, Takashi Nara, JP 82 1049
Nishida, Kimiko Osaka, JP 1 5
Oka, Mutsumi Kyoto, JP 6 27
Okamura, Takaaki Osaka, JP 12 103
Tsunasawa, Susumu Kyoto, JP 10 52
Ueyama, Norikazu Osaka, JP 10 50
Yamaguchi, Minoru Kyoto, JP 72 598

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