摘要:
The present invention provides a process for the expression of a recombinant gene, which contains AGA and/or AGG codons for arginine, in Escherichia coli after transformation with an expression vector which contains the recombinant gene, wherein the amount of t-RNA present in the E. coli cells which incorporates arginine and recognises the codons AGG and AGA is increased to at least fivefold of the amount normally occurring in these cells.
摘要:
A polypeptide which has the activity of an inhibitor DE-3 from Erythrina caffra and which reversibly and selectively binds serine proteases from a protein mixture is obtainable by culturing prokaryotic or eukaryotic host cells which have been transformed or transfected with a nucleic acid that codes for the said polypeptide in a manner that allows the host cells to express the said polypeptide under suitable nutrient conditions and isolating the said polypeptide, wherein the polypeptide has an amino acid sequence which is functionally analogous to SEQ ID NO:2, has a partial region that is more than 85% homologous to the region of amino acids 39-139 of this sequence, has two disulfide bridges and begins N-terminally with SEQ ID NO:4 or with a SEQ ID NO:4 extended N-terminally by methionine and has a binding capacity for tissue plasminogen activators of 1.25 MU/ml and more and is particularly suitable for purifying plasminogen activators such as tissue plasminogen activators (t-PA and derivatives).
摘要翻译:通过培养原核或真核宿主细胞获得具有来自艾瑞氏菌(Erythrina caffra)的抑制剂DE-3并且可逆地和选择性地结合蛋白质混合物的丝氨酸蛋白酶的多肽,所述原核或真核宿主细胞已经用编码 所述多肽以允许宿主细胞在合适的营养条件下表达所述多肽并分离所述多肽的方式,其中所述多肽具有功能上类似于SEQ ID NO:2的氨基酸序列,其部分区域是 与该序列的氨基酸39-139的区域同源超过85%具有两个二硫键,并与SEQ ID NO:4进行N-末端或与蛋氨酸N-末端扩增的SEQ ID NO:4,并具有 组织纤溶酶原激活剂的结合能力为1.25 MU / ml以上,特别适用于纯化纤溶酶原激活剂如组织纤溶酶原激活剂(t-PA和de rivatives)。
摘要:
A new thrombolytically active protein is not glycosylated and consists of the following amino acid sequence: ##STR1## or said amino acid sequence with an additional N-terminal methionine. DNA sequences encoding the thrombolytically active, non-glycosylated protein and pharmaceutical compositions containing said protein are also disclosed. The protein possesses particularly favorable properties when used to dissolve blood clots.
摘要:
The invention relates to a device (1) for cooling a metal strip (2) between two rolling stands (3), wherein the strip (2) is led over a leading-over element (4) of a flat form and arranged under the leading-over element (4) is a spraying element (5), which directs cooling medium (7) onto the underside (8) of the strip (2) through at least one opening (6) in the leading-over element (4). To achieve an improved spray pattern, the invention provides that at least two openings (6) are introduced into the leading-over element (4), said openings being arranged next to each other in a direction transverse (Q) to the conveying direction (F) of the strip (2) and having an elongated form, wherein the longitudinal axis (9) of the opening (6) is aligned at an angle (α) with respect to the conveying direction (F) of the strip.
摘要:
The present invention relates to a fusion protein comprising IGF-I or an IGF-I variant N-terminally linked to the C-terminus of a propeptide. The invention relates also to a method involving the use of the aforementioned fusion protein in the production of a lysine-PEGylated IGF-I or IGF-I variant. The method comprises the steps of cultivating a prokaryotic host cell comprising an expression vector containing a nucleic acid encoding the fusion protein and causing the cell to express the fusion protein, recovering and PEGylating said fusion protein, cleaving said PEGylated fusion protein with IgA protease, and recovering lysine-PEGylated IGF-I or IGF-I variant. The invention relates also to a lysine-PEGylated IGF-I or IGF-I variant produced using the above method. In addition, the invention relates to a method for treating a neurodegenerative disorders like Alzheimer's Disease using the lysine-PEGylated IGF-I or IGF-I variant and a composition comprising the lysine-PEGylated IGF-I or IGF-I variant.
摘要:
According to one aspect of the present invention, a dispenser for one or more razor cartridges includes a base, two side walls, a front wall, a rear wall, a first divider, a second divider, a cover, and a side spring. The first divider is located between the front wall and the rear wall. The second divider is located between the first divider and the front wall, forming a chamber between the second divider and the first divider. The chamber is sized and shaped to receive at least a portion of a razor cartridge. The cover extends partially over the chamber between the first divider and second divider, and is sized to provide an opening through which the razor cartridge can be inserted into the chamber. The side spring extends widthwise into the chamber. The cover and the side spring frictionally engage the razor cartridge when inserted into the chamber.