Abstract:
PURPOSE: A multimeric antibacterial peptide is provided to enable direct administration in vivo without isolation and purification of antibacterial peptides. CONSTITUTION: A multimeric antibacterial peptide expressed on cell surface contains one or more monomers cleaved by pepsin of formula 1(N terminal-[antibacterial peptide-pepsin cleavage amino acid linker]-C terminal) or formula 2(N terminal-[pepsin cleavage amino acid linker-antibacterial peptide]-C terminal). The antibacterial peptide contains the linker and other amino acids. The pepsin cleavage amino acid linker is an amino acid of leucine, phenyl alanine, or tyrosine. An antibacterial pharmaceutical composition contains the multimer as an active ingredient.
Abstract:
PURPOSE: A composition containing peptides for preventing or treating cancer is provided to select cancer cell only and to ensure anticancer effect. CONSTITUTION: A composition for preventing or treating cancer contains peptides of amino acid sequence, APKAMX1LLX2LLX1LQKKGI. The peptide is denoted by amino acid sequence of sequence number 1 or 2. The composition additionally contains pharmaceutically acceptable carrier. The cancer is skin cancer, cervical cancer, lung cancer, or blood cancer.
Abstract:
A novel antibacterial peptide is provided to show strong antibacterial activity on a wider range of microorganism species compared with a conventional antibacterial peptide and have less or no toxicity than the conventional antibacterial peptide. A peptide having the antibacterial activity in a highly concentrated salt is represented by a formula(1) of N-terminal-A P K A M X^1 X^2 X^3 X^4 X^5 L Q K K G I-C-terminal, wherein A is alanine; P is proline; K is lysine; M is methionine; X^1 is one basic amino acid; X^2 is two hydrophobic amino acids selected from the group consisting of alanine, valine and leucine; X^3 is two basic amino acids; X^4 is two hydrophobic amino acids selected from the group consisting of alanine, valine and leucine; X^5 is one basic amino acid; L is leucine; Q is glutamine; G is glycine; and I is iso-leucine. An antibacterial composition comprises the peptide as an effective ingredient.
Abstract translation:提供了一种新型抗菌肽,与常规抗菌肽相比,在更广泛的微生物种类上显示出强的抗菌活性,并且具有比常规抗菌肽更少或没有毒性。 在高浓度盐中具有抗菌活性的肽由N末端-A P K A M X 1 X X 2 X 3 3 X 4 X 5 L Q K K G I-C-末端的式(1)表示,其中A是丙氨酸; P是脯氨酸; K为赖氨酸; M是甲硫氨酸; X ^ 1是一种碱性氨基酸; X ^ 2是选自丙氨酸,缬氨酸和亮氨酸的两种疏水性氨基酸; X ^ 3是两种碱性氨基酸; X ^ 4是选自丙氨酸,缬氨酸和亮氨酸的两种疏水性氨基酸; X ^ 5是一种碱性氨基酸; L是亮氨酸; Q是谷氨酰胺; G是甘氨酸; 我是异亮氨酸。 抗菌组合物包含该肽作为有效成分。
Abstract:
PURPOSE: A transposon for bidirectional intramolecular genome deletions, a construction of a microorganism mutant and the identification of nonessential genes using the same transposon are provided, thereby effectively constructing the nonessential gene-removed Escherichia coli mutant. CONSTITUTION: Transposon TnRIBD sequentially comprises Tn5 transposase recognition site having the nucleotide sequence of SEQ ID NO: 2; tetR gene having the nucleotide sequence of SEQ ID NO: 4; Tnγδ transposase recognition site having the nucleotide sequence of SEQ ID NO: 3; CmR gene having the nucleotide sequence of SEQ ID NO: 5; Tnγδ transposase recognition site having the reverse complementary nucleotide sequence with SEQ ID NO: 3; sacB gene having the nucleotide sequence of SEQ ID NO: 6; and Tn5 transposase recognition site having the reverse complementary nucleotide sequence with SEQ ID NO: 2 in a direction of 5' to 3'. A construction method of a microorganism mutant comprises the steps of: constructing the transposon comprising the transposase recognition site and a selection marker; inserting the transposon into a certain site in the genome of a microorganism; and cloning a transposase expression vector into the genome of the microorganism to remove a portion of chromosome in both ends.
Abstract translation:目的:提供用于双向分子内基因组缺失的转座子,构建微生物突变体和使用相同转座子鉴定非必需基因,从而有效构建非必需基因去除的大肠杆菌突变体。 构成:转座子TnRIBD依次包含具有SEQ ID NO:2的核苷酸序列的Tn5转座酶识别位点; 具有SEQ ID NO:4的核苷酸序列的tetR基因; 具有SEQ ID NO:3的核苷酸序列的Tnγδ转座酶识别位点; 具有SEQ ID NO:5的核苷酸序列的CmR基因; 具有与SEQ ID NO:3相反的互补核苷酸序列的Tnγδ转座酶识别位点; 具有SEQ ID NO:6的核苷酸序列的sacB基因; 和具有与SEQ ID NO:2相反的互补核苷酸序列的5'至3'的Tn5转座酶识别位点。 微生物突变体的构建方法包括以下步骤:构建包含转座酶识别位点和选择标记的转座子; 将转座子插入微生物基因组中的某个位点; 并将转座酶表达载体克隆到微生物的基因组中以去除两端染色体的一部分。
Abstract:
본 발명은 신규한 UDP-당전이효소에 관한 것으로, 구체적으로 인삼 유래의 신규한 UDP-당전이효소 단백질 및 이의 용도에 관한 것으로서, 상기 단백질을 이용하여 PPD(protopanaxadiol) 타입의 진세노사이드를 전환시켜 글리코실화된 진세노사이드를 제조하는 방법, 상기 단백질, 형질전환체 또는 이의 배양물을 유효성분으로 포함하는 글리코실화된 진세노사이드로의 전환용 조성물, MeJA(methyl jasmonate)를 이용하여 상기 단백질의 발현을 증가시키는 방법 및 MeJA를 유효성분으로 포함하는 상기 단백질의 발현 증가용 조성물에 관한 것이다.