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    • 1. 发明申请
    • LIPOLYTIC ENZYME USES THEREOF IN THE FOOD INDUSTRY
    • 蛋白
    • WO2006008653A2
    • 2006-01-26
    • PCT/IB2005/002602
    • 2005-07-18
    • DANISCO A/SMIASNIKOV, AndreiSØE, Jørn, BorchMIKKELSEN, Jørn, DalgaardPOVELAINEN, MiraPITKANEN, Virve
    • MIASNIKOV, AndreiSØE, Jørn, BorchMIKKELSEN, Jørn, DalgaardPOVELAINEN, MiraPITKANEN, Virve
    • C11B3/00C11C3/00C07F9/10C12N15/55C12N9/20C12P7/64A23C9/13A21D2/26
    • C12N9/1029A21D8/042A23J7/00C11B3/003C12N9/20C12P7/6418C12P7/6445C12P7/6481C12Y301/01003
    • The invention also encompases the use of a lipolytic enzyme obtainable from one of the following genera: Streptomyces, Corynebacterium and Thermobifida in various methods and uses, wherein said lipolytic enzyme is capable of hydrolysing a glycolipid or a phospholipid or transferring an acyl group from a glycolipid or phospholipids to a acyl acceptor. Preferably, the lipolytic enzyme for use in these methods and uses comprises an amino acid sequence as shown in any one of SEQ. ID. No.s 4, 5, 7, 8, 12, 14 or 16 or an amino acid sequence having at least 70% identity therewith or comprises a nucleotide sequence shown as SEQ ID No. 3, 6, 9, 13, 15 or 17 or a nulceotide seqeunce which has at least 70% identity therewith. The present invention also relates to a lipolytic enzyme capable of hydrolysing at least a galactolipid or capable of transferring an acyl group from a galactolipid to one or more acyl acceptor substrates, wherein the enzyme is obtainable from Steptomyces species and includes a lipolytic enzyme comprising an amino acid sequence as shown in SEQ ID No. 4 or an amino acid sequence which has at least 60% identity thereto. The enzyme may be encoded by a nucleic acid selected from the group consisting of: a) a nucleic acid comprising a nucleotide sequence shown in SEQ ID No. 3; b) a nucleic acid which is related to the nucleotide sequence of SEQ ID No. 3 by the degeneration of the genetic code; and c) a nucleic acid comprising a nucleotide sequence which has at least 70% identity with the nucleotide sequence shown in SEQ ID No. 3.
    • 本发明还包括使用可从各种方法获得的脂肪分解酶:链霉菌,棒状杆菌和热嗜热菌,其中所述脂肪分解酶能够水解糖脂或磷脂或从糖脂转移酰基 或磷脂转化为酰基受体。 优选地,用于这些方法和用途的脂肪分解酶包含SEQ ID NO:1中任一项所示的氨基酸序列。 ID。 第4,5,7,8,12,14或16号氨基酸序列或与其具有至少70%同一性的氨基酸序列,或包含SEQ ID No.3,6,13,13,15或17所示的核苷酸序列 或与其具有至少70%同一性的nucceotide seqonunce。 本发明还涉及能够至少水解半乳糖脂或能够将酰基从半乳糖脂转移至一种或多种酰基受体底物的脂解酶,其中所述酶可从步态物种获得,并且包括脂肪分解酶,其包含氨基 如SEQ ID No.4所示的酸序列或与其具有至少60%同一性的氨基酸序列。 该酶可以由选自以下的核酸编码:a)包含SEQ ID No.3所示核苷酸序列的核酸; b)通过遗传密码的退化与SEQ ID No.3的核苷酸序列相关的核酸; 和c)包含与SEQ ID No.3所示核苷酸序列具有至少70%同一性的核苷酸序列的核酸。
    • 4. 发明申请
    • PROTEIN
    • 蛋白
    • WO2010150213A1
    • 2010-12-29
    • PCT/IB2010/052868
    • 2010-06-23
    • DANISCO A/SMIASNIKOV, AndreiBOTT, Richard, RSØRENSEN, Jens, Frisbæk
    • MIASNIKOV, AndreiBOTT, Richard, RSØRENSEN, Jens, Frisbæk
    • C12N9/18C12N9/20A23L1/015C12N15/55
    • C12N9/20A21D8/042C12N9/18C12Y301/01003C12Y301/01004C12Y301/01026C12Y301/01032
    • The present invention relates to a method for preparing a variant lipolytic enzyme comprising expressing in a host organism a nucleotide sequence which has at least 90% identity with a nucleotide sequence encoding a fungal lipolytic enzyme and comprises at at least one modification at a position which corresponds in the encoded amino acid sequence to a) the introduction of at least one glycosylation site (or one additional glycosylation site) in the amino acid sequence compared with the original fungal lipolytic enzyme; b) the introduction of at least one amino acid at a surface position on the polypeptide and at a location in an external loop distal to the active site (catalytic triad) of the enzyme which is more hydrophilic (compared with the original amino acid); or c) a substitution or insertion at one or more of positions 33, 63, 78, 190, 305, 306 or 320 or a deletion at one or more positions 311-312 or 307-319, wherein each amino acid position corresponds to the position of the amino acid sequence when aligned with SEQ ID No. 2; wherein when the nucleotide sequence has at least 90% identity with a nucleotide sequence encoding the fungal lipolytic enzyme shown in SEQ ID No. 22 or SEQ ID No. 23 the modification is not a substitution at position 63 and the deletion is not at position 311 -312. Preferably the nucleotide sequence has at least 90% identity with SEQ ID No. 1. The invention also relates to polypeptide produced by the method and to novel nucleic acids.
    • 本发明涉及一种制备变体脂肪分解酶的方法,其包括在宿主生物体中表达与编码真菌脂肪分解酶的核苷酸序列具有至少90%同一性的核苷酸序列,并且包括在对应的位置处的至少一个修饰 在编码的氨基酸序列中a)与原始真菌脂肪分解酶相比,在氨基酸序列中引入至少一个糖基化位点(或另外一个糖基化位点); b)在多肽的表面位置和远离更亲水的酶(与原始氨基酸相比)的活性位点(催化三单元组)的外部环路的位置处引入至少一个氨基酸; 或c)在位置33,63,78,190,305,306或320中的一个或多个处的取代或插入或在一个或多个位置311-312或307-319处的缺失,其中每个氨基酸位置对应于 当与SEQ ID No.2对齐时,氨基酸序列的位置; 其中当所述核苷酸序列与编码SEQ ID No.22或SEQ ID No.23所示的真菌脂肪分解酶的核苷酸序列具有至少90%同一性时,所述修饰不是位置63处的取代,并且缺失不在位置311 -312。 优选地,核苷酸序列与SEQ ID No.1具有至少90%的同一性。本发明还涉及通过该方法产生的多肽和新的核酸。