JP5205381B2 - アルキン誘導体の酵素的還元方法 - Google Patents
アルキン誘導体の酵素的還元方法 Download PDFInfo
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- JP5205381B2 JP5205381B2 JP2009526110A JP2009526110A JP5205381B2 JP 5205381 B2 JP5205381 B2 JP 5205381B2 JP 2009526110 A JP2009526110 A JP 2009526110A JP 2009526110 A JP2009526110 A JP 2009526110A JP 5205381 B2 JP5205381 B2 JP 5205381B2
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- enzyme
- reductase
- alkyl
- reduction
- seq
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
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- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
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- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
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- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical compound C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
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- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
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- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 1
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- 150000003738 xylenes Chemical class 0.000 description 1
- 239000012138 yeast extract Substances 0.000 description 1
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/24—Preparation of oxygen-containing organic compounds containing a carbonyl group
- C12P7/26—Ketones
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/0004—Oxidoreductases (1.)
- C12N9/0012—Oxidoreductases (1.) acting on nitrogen containing compounds as donors (1.4, 1.5, 1.6, 1.7)
- C12N9/0036—Oxidoreductases (1.) acting on nitrogen containing compounds as donors (1.4, 1.5, 1.6, 1.7) acting on NADH or NADPH (1.6)
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- Genetics & Genomics (AREA)
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- General Health & Medical Sciences (AREA)
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- Biotechnology (AREA)
- General Engineering & Computer Science (AREA)
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- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
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Description
R1は、H、C1-C6-アルキル、C2-C6-アルケニル、又は置換されていてもよい炭素環式若しくは複素環式の芳香族環若しくは非芳香族環であり、
R2は、H、C1-C6-アルキル又はC2-C6-アルケニルである。]
式(1)の化合物を、
(i)配列番号1、2、3、5、7若しくは9の少なくとも1つのポリペプチド配列を含む、又は
(ii)配列番号1、2、3、5、7若しくは9と少なくとも80%の配列同一性を有する機能的に等価なポリペプチド配列を有する
レダクターゼの存在下で還元することによる方法に関する。
を提供する。式(2)の化合物は、特に50%を超えて、特に60、70又は80%を超えて、好ましくは90%を超えて、例えば95〜99%、特に約100%がE配置の形態で存在する。
- C1-C6-アルキル、特にメチル、エチル、プロピル、ブチル、ペンチル又はヘキシル、及び1回以上分岐している対応する類似体、例えばi-プロピル、i-ブチル、sec-ブチル、tert-ブチル、i-ペンチル又はネオペンチル、特に好ましくは上記のC1-C4-アルキル基;
- C2-C6-アルケニル、特に2〜6個の炭素原子を有する上記のアルキル基の一価不飽和類似体、特に好ましくは対応するC2-C4-アルケニル基。
本発明に従って使用するレダクターゼは、本発明の方法において、遊離酵素若しくは固定化酵素として使用することができる。
別段の記載がない限り、例えば制限酵素切断、アガロースゲル電気泳動、DNA断片の精製、ニトロセルロース及びナイロン膜への核酸の転写、DNA断片の結合、微生物の形質転換、微生物の培養、ファージの複製、並びに組換えDNAの配列分析などの本発明において行うクローニング工程は、Sambrook et al. (1989)前掲に記載されているように行うことができる。
大腸菌TG10は大腸菌TG1(Stratagene)から得られる。TG10はテトラサイクリン耐性でラムノース要求性の菌株である。TG10+は、以下のプラスミドを導入することによりTG10から得られる:
a)pAgro4(シャペロン + ストレプトマイシン耐性)(図3参照)及び
b)pHSG575(シャペロン + クロラムフェニコール耐性)(図4参照)。
a)oye 1:サッカロミセス・カールスベルゲンシス(Genbank Q02899)
b)oye 2:サッカロミセス・セレビシエ(Genbank Q03558)
c)oye 3:サッカロミセス・セレビシエ(Genbank P41816)。
pDHE1650 OYE1(図5参照)
pDHE1650 OYE2(図6参照)
pDHE1650 OYE3(図7参照)。
a)酵素の調製
組換え菌株を、100 μg/ml アンピシリン、100 μg/ml ストレプトマイシン及び20 μg/ml クロラムフェニコールを含むLuriaブロス培地(10 g/l トリプトン、10 g/l NaCl及び5 g/l 酵母エキス)で培養した。両シャペロンには0.1 mM IPTG、及びOYEには0.5 g/l L-ラムノースを用いてタンパク質の過剰発現を誘導した。培養物を120 rpm、37℃で22時間振とうした。回収した細胞を-20℃で保存した。
生体内変換は、1 mlの反応容積で、磁気撹拌しながら30℃で1時間かけて行った。反応混合物中の初期濃度は以下のようであった:10 gの乾燥バイオマス/l、10% イソプロパノール[容積/容積]、20 mM 4-フェニル-3-ブチン-2-オン、5 mM EDTA、2 mM NADP+、1 U/mlテルモプラズマ・アシドフィルム(Thermoplasma acidophilum)由来のグルコースデヒドロゲナーゼ、50 mM D-グルコース、50 mM MES緩衝液(KOHを用いてpH 6.8に調整した)。NADHによる生体内変換のために、NADPH再生系(NADP+、グルコースデヒドロゲナーゼ及びグルコース)の代わりに15 mM NADHを用いた。
反応混合物をクロロホルムで抽出し、抽出物を、Supelco BPX5キャピラリーカラム(25 m×0.32 mm(内径)、0.5 μm(固定相の膜厚))及びFID検出器(FID detection)を備えたVarian Star 3400 GCを用いて、キャピラリーガスクロマトグラフィー(GC)により検出した。生成物の内容を、標準サンプルとの共溶出及びGC/MSデータにより確認した。GC/MSは、Hewlett-Packard 5972 TID質量分析計に接続したHewlett-Packard 5890、series II、ガスクロマトグラフにおいて、Restek RTX-5MSキャピラリーカラム(30 m×0.25 mm(内径)、0.25 μm(固定相の膜厚))を用いて行った。クロマトグラム及びm/z比を、Agilent TechnologiesからのMSD ChemStationソフトウェアを用いて分析した。更に、データベースをWiley6ライブラリーを用いてフラグメンテーションパターンでスクリーニングし、未知化合物を同定した。Bruker 300 MHz GYRO NMRを用いて、得られた4-フェニル-3-ブテン-2-オン生成物のシス及びトランス配置を決定した。1D-WINNMRソフトウェアをデータの分析に用い、得られたスペクトルを99%の純度を有するトランス-4-フェニル-3-ブテン-2-オン標準と比較した。
Claims (10)
- 一般式(1)のα,β-不飽和アルキノン誘導体から一般式(2)のアルケノン誘導体を酵素により製造する方法であって、
〔式中、
R1は、H、C1-C6-アルキル、C2-C6-アルケニル、又は置換されていてもよい炭素環式若しくは複素環式の芳香族環若しくは非芳香族環であり、
R2は、H、C1-C6-アルキル又はC2-C6-アルケニルである。〕
式(1)の化合物を、
(i)配列番号1、2、3、5、7若しくは9の少なくとも1つのポリペプチド配列を含む、又は
(ii)配列番号1、2、3、5、7若しくは9と少なくとも90%の配列同一性を有する機能的に等価なポリペプチド配列を有し、前記機能的に等価なポリペプチド配列が、NAD(P)依存反応において、4-フェニル-3-ブチン-2-オンをE-4-フェニル-3-ブテン-2-オンに還元し、かつ、配列番号1、2、若しくは3のアミノ酸配列の1つを含む酵素の活性の少なくとも50%を有する
レダクターゼの存在下で還元することによる方法。 - 還元が、ATPに依存しないでNADPH又はNADHを補因子として用いて行われる、請求項1記載の方法。
- 使用する補因子が酵素により再生される、請求項2記載の方法。
- 補因子がグルコースデヒドロゲナーゼにより再生される、請求項3記載の方法。
- 還元を、水性、水性-アルコール性、又はアルコール性の反応媒体中で行う、請求項1〜4のいずれか1項に記載の方法。
- レダクターゼが固定形態である、請求項1〜5のいずれか1項に記載の方法。
- 酵素が、サッカロミセス・カールスベルゲンシス(Genbank Q02899)、サッカロミセス・セレビシエ(Genbank Q03558)及びサッカロミセス・セレビシエ(Genbank P41816)由来のレダクターゼから選択される、請求項1〜6のいずれか1項に記載の方法。
- R1が置換されていてもよいアリールであり、R2がC1-C6-アルキルである式(1)の化合物を反応させる、請求項1〜7のいずれか1項に記載の方法。
- 式(2)の化合物のE異性体が生じる、請求項1〜8のいずれか1項に記載の方法。
- 反応を0〜45℃の範囲の温度及び/又はpH6〜8の範囲のpHで行う、請求項1〜9のいずれか1項に記載の方法。
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