C-TERMINUS AMIDATION ENZYME COMPOSITION, PROCESS FOR ITS PREPARATION AND ITS USE
申请人:SHISEIDO COMPANY LIMITED
公开号:EP0447547A1
公开(公告)日:1991-09-25
A C-terminus amidation enzyme composition of serum or blood plasma origin, which acts on a C-terminus glycine adduct represented by formula (I) (wherein A represents a residue other than α-amino or imino group and α-carboxyl group of a natural α-amino acid origin, and X represents a hydrogen atom or a residue of an amino acid derivative bound to the N atom via a carbonyl group) to produce a C-terminus amidation product represented by formula (II) (wherein A and X are as defined above) and glyoxylic acid, is disclosed. A process for preparing the composition and its use are also disclosed.
一种来源于血清或血浆的 C-端酰胺化酶组合物,它作用于式(I)代表的 C-端甘氨酸加合物(其中 A 代表除天然 α-氨基酸来源的 α-氨基或亚胺基和 α-羧基以外的残基),X 代表氢原子或通过羰基与 N 原子结合的氨基酸衍生物残基、和 X 代表氢原子或通过羰基与 N 原子结合的氨基酸衍生物残基),以产生由式 (II) 代表的 C 端酰胺化产物(其中 A 和 X 如上定义)和乙醛酸。还公开了制备该组合物的工艺及其用途。
Enzyme participating in c-terminal amidation, and method of preparing same and use thereof
申请人:SHISEIDO COMPANY LIMITED
公开号:EP0666318A1
公开(公告)日:1995-08-09
An enzyme catalyzing the conversion of a peptide C-terminal glycine adduct represented by the following formula (I):
(wherein A represents a residue other than α-amino group or imino group and α-carboxylic group derived from naturally occurring α-amino acid, X represents hydrogen atom or a residue of an amino acid derivative which is bonded to N atom through carbonyl group) to a peptide C-terminal α-hydroxyglycine adduct represented by the following formula (II):
(wherein A and X have the same meanings as above), and further catalyzing the conversion of the peptide C-terminal α-hydroxylglycine adduct represented by the above formula (II) to a C-terminal amidated compound represented by the following formula (III):
(wherein A and X have the see meanings as defined above), which comprises culturing host cells transformed with an expression plasmid comprising a DNA coding for said enzyme, and recovering both or either of said enzymes from the culture, characterized in that in said DNA a portion corresponding to the membrane spanning region has been excised.
催化下式(I)所代表的肽 C 端甘氨酸加合物转化的酶:
(其中 A 代表α-氨基或亚胺基和α-羧基以外的残基,α-氨基或亚胺基和α-羧基来自天然存在的α-氨基酸,X 代表氢原子或通过羰基与 N 原子结合的氨基酸衍生物残基)转化为下式(II)代表的肽 C-末端α-羟基甘氨酸加合物:
(其中A和X的含义同上),并进一步催化由上式(II)代表的肽C-末端α-羟基甘氨酸加合物转化为由下式(III)代表的C-末端酰胺化化合物:
(其中A和X的含义与上式相同),其中包括培养用包含编码上述酶的DNA的表达质粒转化的宿主细胞,并从培养物中回收上述两种或其中一种酶,其特征在于,在上述DNA中,对应于跨膜区的部分已被切除。
Enzyme participating in C-terminal amidation, and method of preparing same and use thereof
申请人:SHISEIDO COMPANY LIMITED
公开号:EP0884389A1
公开(公告)日:1998-12-16
An enzyme participating in C-terminal amidation which acts on a peptide C-terminal glycine adduct represented by the following formula (I):
(wherein A represents a residue other than α-amino group or imino group and α-carboxylic group derived from naturally occurring α-amino acid, X represents hydrogen atom or a residue of an amino acid derivative which is bonded to N atom through carbonyl group) to form a peptide C-terminal α-hydroxylglycine adduct represented by the following formula (II):
(wherein A and X have the same meanings as above, and an enzyme participating in peptide C-terminal amidation of a peptide terminal glycine adduct which acts on a peptide C-terminal α-hydroxylglycine adduct represented by the above formula (II) to form a C-terminal amidated compound represented by the following formula (III):
(wherein A and X have the same meanings as described above) a method of producing the same, and the use thereof.
一种参与 C 端酰胺化的酶,它作用于由下式(I)代表的肽 C 端甘氨酸加合物:
(其中 A 代表α-氨基或亚胺基和α-羧基以外的残基,X 代表氢原子或通过羰基与 N 原子结合的氨基酸衍生物残基),以形成下式(II)所代表的肽 C-末端α-羟基甘氨酸加合物:
(其中 A 和 X 的含义同上,以及一种参与肽 C-末端甘氨酸加合物酰胺化的酶,该酶作用于上式(II)代表的肽 C-末端α-羟基甘氨酸加合物,形成下式(III)代表的 C-末端酰胺化化合物:
(其中A和X的含义与上述相同)的生产方法及其用途。
ENZYMES WHICH PARTICIPATE IN C-TERMINAL AMIDATION, AND PRODUCTION AND USE THEREOF