cluster of gene 中文意思是什麼

cluster of gene 解釋
基因群
  • cluster : n 1 叢集；叢；（葡萄等的）串，掛；（花）團；（秧）蔸；組。2 （蜂、人等的）叢，群，群集。3 【物理...
  • of : OF ＝Old French 古法語。
  • gene : n. 【生物學】基因。 dominant gene顯性基因。
  1. In addition to avermectins, s. avermitilis produces oligomycin, a strongly toxic compound. gene deletion vector pxl05 was used to disrupt oligomycin polyketide synthase ( pks ) encoding genes ( olma ) in streptomyces avermitilis cz8 - 73, the producer of anthelmintic avermectins b and the cell growth inhibitor oligomycin. olma gene cluster in the chromosome was displaced by deletion allele on the plasmid via double crossover

    本研究以產阿維菌素b和寡黴素的阿維鏈黴菌cz8 - 73為出發菌株，構建了基因缺失載體pxl05 ，並將其轉入cz8 - 73中，通過缺失載體和染色體之間的同源雙交換，對染色體上長達90kb的寡黴素聚酮合酶（ pks ）基因簇（ olma ）進行了缺失。
  2. Abstract : the risk of cluster headache ( ch ) is associated with the g - allele of the g1246a polymorphism in the hypocretin receptor 2 ( hcrtr2 ) gene

    摘要：叢集性頭痛的危險與食慾素受體2的g1246a等位基因多形性有關。
  3. [ b ] abstract : [ / b ] the risk of cluster headache ( ch ) is associated with the g - allele of the g1246a polymorphism in the hypocretin receptor 2 ( hcrtr2 ) gene

    摘要：叢集性頭痛的危險與食慾素受體2的g1246a等位基因多形性有關。
  4. [ size = 2 ] [ b ] abstract : [ / b ] the risk of cluster headache ( ch ) is associated with the g - allele of the g1246a polymorphism in the hypocretin receptor 2 ( hcrtr2 ) gene

    摘要：叢集性頭痛的危險與食慾素受體2的g1246a等位基因多形性有關。
  5. A four - gene block, a rwo - trna gene cluster and six single trna genes involved in the rearrangement, the second gene rearrangement type of mitochondrial dna reported for any pancrustacea arthropod. comparisons of mitochondrial gene arrangements of decapod suggested that rearrangement of the four gene - block found in eriocheir is informative for high level phylogenetic study of decapod

    發生重排的基因包括一個4基因塊的重排、 1個2基因的trna基因簇的重排和6個單一trna基因的重排，形成泛甲殼類線粒體dna的另一種基因重排類型。
  6. Cluster analysis based on rapd showed that at 76 % similarity level, all tested isolated could be clusted into nine groups, i. e. 1 p. ostreatus and p. florida, ii p. ostreatm p. sapidus, p. spodoleucus and p. eryngii, iii p. colnmbinus, p. corlicalus, p. cornucopiae, p. nebrodensis and p. ferulae ; iv p. pulmonarius and p. sajor - caju, v three isolates with indefinite species, vi p. luber - regium, vii p. cilrinopileatus, viii p. djamor and p. salmoneoslramincus, ix p. abalonus and p. cysliodism. 4. a single uniform product 1. 46kb in size resulted from pcr amplification of the 5 " half of the 28s rrna gene for all isolates of pleurolus and the other three genera

    隨機擴增多態性dna的聚類分析表明，在76相似水平下，可將供試的側耳菌株聚成九大類，第一大類包括糙皮側耳、佛羅里達側耳；第二大類包括美味側耳、灰白側耳、剌芹側耳；第三大類包括哥倫比亞側耳、裂皮側耳、黃白側耳、阿魏蘑、白阿魏蘑；第四大類包括肺形側耳和鳳尾菇；第五大類為3株未定名的側耳；第六大類僅有具核側耳；第七大類為金頂側耳；第八大類包括紅平菇和桃紅側耳；第九大類包括鮑魚菇和囊蓋側耳。
  7. Using pij903 bearing tsr gene as a vector, the two furthermost fragments of the cluster, 4. okb and 1. 5kb in size respectively, were inserted into it

    Scp2 *的應用有兩個主要的限制，一是必須有被克隆基因簇的完整而詳細的遺傳學信息，二是要求它在被克隆基因簇的來源菌株中不能復制。
  8. The avermetins are a group of closely related macrocylic lactones with exceedingly high activity against helminths and anthropods. this paper review the biosyntheticpathway of the avermectins and the organization of the biosynthetic gene cluster which many groups have analysed and cloned

    阿維菌素為一種典型的次級代謝產物，生物合成途徑復雜，現在基本上對每一步合成途徑的基因及其所編碼的酶都有所了解。
  9. Analysis of the sequence revealed that adda resembled nifs of nitrogen - fixing bacteria and dnda. the entire add gene cluster showed 78 % identity to dnd gene cluster from s. lividans

    同源性比較揭示add基因簇的adda基因與固氮酶基因nifs高度同源， add與變鉛青鏈黴菌dnd核苷酸的同一性為78 。
  10. In order to facilitate the study of biological function of add gene cluster, e. coli - s. avermitilis intragenus conjugation system was established. in addition, phz2114 for the replacement of the entire add gene cluster and phz2130 for disruption of adda were constructed

    建立了除蟲鏈黴菌的接合轉移系統，並構建了用於置換全部基因簇的基因置換質粒phz2114和adda的基因中斷質粒phz2130 ，為研究除蟲鏈黴菌add基因簇的生物學功能奠定了基礎。
  11. In this study, the avermectin - producing strain streptomyces avermitilis was studied and the avermectin biosynthesis gene cluster in the genomic dna of streptomyces avermitilis s - 2 was altered by the method of gene engineering. insertion inactivation of aved gene in the cluster by introducing apramycin resistance gene into aved gene resulted in the disappearance of " a " components of avermectins. when avec gene was inactivated by the same way, four " 1 " components were lost and only " 2 " components, the potential precursor of ivermectin, were accumulated

    將該基因簇中的aved基因通過插入外源的安普黴素抗性基因片段使其失活，導致發酵產物中4個a組分（不需要的組分）的消失；將基因簇中的avec基因通過同樣手段，使其失活，導致發酵產物中4個「 1 」組分的消失，而主要積累「 2 」組分（進一步改造可成為伊維菌素的前體b _ 2組分） 。
  12. Systematic cluster analysis was carried out on hu sheep in china in comparison with the same data of 9 asia sheep populations and 5 european sheep ( breeds in japan ) populations. 15 populations can be clustered in terms of gene frequency of 10 loci and 33 allele in blood enzyme and other protein variations

    摘要以中國湖羊為研究對象，搜集國內外9個亞洲綿羊群體和5個在日本的歐洲綿羊群體的相同資料作為對照，根據控制血液酶和其他蛋白質變異的10個基因座位共計33個等位基因的頻率，進行系統聚類分析。
  13. Streptomyces low copy number plasmid scp2 * is also employed for the cloning and recovery of large dna fragment from streptomyces. as scp2 * can accommodate large dna insertions and is efficiently transmissible among its permissive hosts such as s. lividansbut seemed to be unable to replicates in streptomyces sp. fr - 008, it might be a suitable vector for the cloning of the entire fr - 008 pks gene cluster through gene replacement followed by conjugation with 5

    Scp2 *可以在變鉛青鏈黴菌等許可宿主內復制並在許可宿主間有效轉移，但似乎不能夠在鏈黴菌fr - 008中復制，因此可能適合於在鏈黴菌fr - 008中通過進行基因置換及隨后的鏈黴菌fr - 008和變鉛青鏈黴菌間的接合過程來克隆完整的fr - 008生物合成基因簇。
  14. Importance of five genes presented in xenorhabdus nematophilus bp toxin gene cluster to its insecticidal activity

    品系殺蟲毒素基因簇中各基因與殺蟲活性的關系
  15. Moreover, asp immediately preceding the active site ser is necessary for proper folding of the catalytic site. the human clsp cdna corresponded to unigene cluster hs. 415792 located on human chromosome 12pl3. 31. nucleotide sequence alignment of clsp and this sequence enabled us to demonstrate the genomic structure of the clsp gene with appropriate exon - intron boundaries, which contained 6 exons and 5 introns

    Clsp在造血細胞系的表達較為特殊，不表達于淋巴瘤細胞系，只表達于單核髓系白血病細胞系，如慢性髓系白血病k一562 、髓系單核白血病thp一1 、前髓系白血病hl一60和b4 ，以及急性髓系白血病kg一1細胞系，其中thp一1細胞系經lps刺激后clsp表達水平亦呈上升趨勢。
  16. In this study, the suitable parameters for the introduction of plasmids phz1358 and pset152 into s. nanchangensis ns3226 from e. coli were tested for developing an conjugation system for s. nanchangensis ns3226. a dnd gene cluster, which encodes an unknown modification system for 5 hvidans 1326 and renders its dna susceptible to site - specific double - strand dna cleavage during electrophoresis was conjugated from e. coli into s. nanchangensis ns3226

    將克隆在整合型載體pset152上的變鉛青鏈黴菌1326的dnd基因簇通過接合轉移導入野生型南昌鏈黴菌ns3226中進行異源表達，觀察到接合轉移子的dna獲得了在含fe ~ （ 2 + ）的電泳緩沖液中電泳時降解的表型。
  17. We analyzed their sequence characterizations, genomic structures and transcription levels under salinity stress. the results indicated that ssvp showed highest homology to the vacuolar h + - ppase ( cvp ) gene from chenopodium rubrum and phylogenetic analysis indicated that ss vp and cvp share a cluster, which showed that they might be more similar in evolution. southern blot analysis showed that there was more than one copy of ssvp in the suaeda salsa genome

    本實驗從400mmol lnacl處理的鹽地堿蓬地上部分構建的zap - cdna文庫中克隆了編碼mapkk的全長cdna （ ssmapkk ， ay093683 ）和編碼液泡膜h ~ + - ppase的部分cdna （ ssvp ） ，據已知序列設計引物利用pcr方法獲得編碼鹽地堿蓬液泡膜h ~ + - ppase的全長cdna 。
  18. The clsp gene is located approximately 3 kb and 90 kb centromeric to the clr and cls gene, respectively, and their genes form a short cluster in a region of about 115kb in 12pl3. the cluster gene arrangement and the sequence similarities of the cub and trypsin - like serine protease domain of clsp with other complement component 1 subcomponents supported a common evolutionary history by consecutive gene dup

    同樣利用pcr檢測了clspmrna在人正常組織中的分佈，結果發現，人clspmrna廣泛表達於人正常組織中，如在胎盤、肝臟、腎臟、胰腺中表達量較高，在肺、脾、前列腺、卵巢、結腸、外周血組織有中度表達，而在心臟、骨骼肌、胸腺、翠
  19. The derivatives of phz2104 resulting from the disruption of the three putative orfs respectively by aada can not confer dnd phenotype on zx1. using erase - a - base system, a series of exoiii progressive deletion mutants were prepared for sequencing of add gene cluster

    將add基因簇亞克隆到測序載體pbluescript sk （ + ）上，採用exo缺失突變法得到了66個單向遞減缺失亞克隆，然後對這些克隆進行測序。
  20. The application of scp2 * derivied vectors requires that the physical map of a specific gene cluster is known and scp2 * derivatives are suicidal in the host earring the gene cluster

    在新載體系統phz能1一phz622中，我們不但同向插入了來自於野生型變鉛青鏈黴菌中hau3r基因兩側的1
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