降解抗原 的英文怎麼說

中文拼音 [jiàngjiěkàngyuán]
降解抗原 英文
degradation antigen
  • : 降動詞1. (投降) surrender; capitulate 2. (降伏) subdue; vanquish; tame
  • : 解動詞(解送) send under guard
  • : Ⅰ動詞1 (抵抗; 抵擋) resist; combat; fight 2 (拒絕; 抗拒) refuse; defy 3 (對等) contend with...
  • : Ⅰ形容詞1 (最初的; 原來的) primary; original; former 2 (沒有加工的) unprocessed; raw Ⅱ動詞(原...
  1. The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides

    進一步對xynba進行了脫糖基化處理得到xynbb ,其分子量恢復到23kd ,證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產酶xynb之間酶學性質的比較發現:三種酶的最適ph差異不大, xynb和xynba均為5 . 2 , xynbb為5 . 0 ; xynb和xynba的最適溫度均為60 , xynbb為50 :在耐熱性上, xynba由於糖基化作用熱穩定性明顯高於未糖基化的xynb和xynbb ; xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ,明顯低於酶的比活2814 . 45iu mg ; xynb和xynba的km值相當,分別為21 . 56 ( g kg )和20 . 87 ( g kg ) ,而xynbb的km值較大為27 . 10 ( g kg ) ; xynba和xynbb的vmax相差不大,分別為4568 mol mg ? min和5329 mol mg ? min ,明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性,對胃蛋白酶和胰蛋白酶有很好的性,且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶產物的糖份分析發現:以樺木木聚糖為底物時,酶產物主要為木三糖和木四糖,含量分別為68 . 43和16 . 50 ,另外還含有11 . 79的木二糖;以玉米芯木聚糖為底物時,酶產物主要為木二糖和木三糖,含量分別為81 . 78和11 . 55 。
  2. According to their pathogenic activity, three strain of marine bacteria were selected as l2 ( alteromonas sp ), g ( pseudomonas sp ), py ( pseudomonas sp ). the biochemical changes of malondialdehyde ( mda ), which is the lipid peroxidation end product and can be measured by thiobarbituric acid ( tba ) regeant, and polyphenol content, which reflected the host non - specific chemical defense activity and can be measured by folin - ciocalteu method, were determined at different time intervals during host pathogenesis

    本研究採用海帶作為模式藻類生物,以褐藻酸菌l2 , g及非褐藻酸菌py為復染菌建立人工復染體系,用硫代巴比妥酸( tba )試劑測定感染過程中海帶組織細胞膜脂肪氧化產物丙二醛( mda )的變化情況及folin - ciocalteu酚試劑測定病菌感染過程中海帶組織中多酚含量隨時間變化情況。
  3. The results are as follows : ( 1 ) when the protoplasts of cv. lovrin 10 had treated with iwf for 15 minutes, the microtubules in the protoplasts began to depolymerize, this mainly showed in forms that the mt bundles cleaved, the quantity of mts reduced and the density of mts decreased

    試驗結果表明: ( 1 )病品種洛夫林10生質體在激發子處理15min時,微管骨架即開始發生聚,這主要表現為微管骨架的數量減少;微管束發生斷裂;微管密度下
  4. Dcs play a pivotal role in the development of antitumor immunity. t lymphocytes immune response induced by direct antigen - pulsed dcs can not maintain longer for peptides - mhc department or mhc molecules degeneration. the method of dcs loading with tumor antigen gene is another potential approach to enhancing and maintaining immune response

    在用直接刺激dc時,由於- mhc復合物離或細胞mhc分子而不能維持所誘導的t細胞免疫應答,藉助載體把腫瘤基因導入dc后腫瘤在dc內的持續表達能增強其提呈能力並能維持所誘導的免疫效應。
  5. Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result

    西安理工大學碩士學位論文在水平地震作用下,並考慮風荷載組合,分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系,通過改變結構參數,運用空間有限元方法,進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移角」 ,以及「構件內力」 。結果表明:在等面積則下,異型柱代換矩形柱后,結構剛度增大,側向位移明顯減小,地震反應力略有增加,框架柱軸壓比最大增幅小於8 % ,結構整體震性能有所提高;當異型柱肢長肢厚比小於等於3 . 6時,結構有利於震;水平地震作用力與整體坐標夾角為0度時,結構地震作用效應較大,屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐,側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移小,構件內力增大適中,是一種震性能優越的結構體系:在震設防烈度較高地區( 8度)和震不利的建築場地( m類場地) ,採用異型柱結構體系時,應盡可能減輕結構自重,低地震作用力;分別採用「振型分反應譜」法和「時程分析」法進行地震作用計算,兩種方法所得結果基本一致。
  6. It is true in difficult cases, such as degraded dna or samples containing minimal amounts of genomic dna. to investigate the sequence diversity of mtdna in taiyuan han population, mtdna nt16081 - 16546 sequences were determined in 58 unrelated han chinese from taiyuan. sscp method was developed as one of screening measures which were used to examine polymorphism of mtdna, so as to supply a rapid and simple method for forensic casework

    方法隨機抽取58名太地區漢族群體無血緣關系個體的靜脈血, edta凝,改良的tkm法提取mtdna , pcr擴增、純化后,應用377序列分析儀進行直接測序分析;對毛發、指甲、骨骼等微量或嚴重檢材進行mtdna序列分析;採集同一屍體血液、肌肉、肝、腎、心肌、不同部位的毛乾等組織進行同一性檢測;對20個兩代家系進行突變觀察。
  7. This implied that the 31 kd initiated from atg codon of pres2 gene, the 30 kd encoded by the s gene was glycosylated form of s protein, the 25 kd initiated from atg codon of the pres2 gene was disassembled form of 31 kd and the 28 kd was a glycosylated form of25kd. under optimal condition the expression level of foreign gene was considerably affected on hosts ( silkworm race ), the highest difference of expression level in various races can reach up to 8 times

    推測31kd處的條帶為起始於presz起始密碼子atg的表達產物,同時具有pres : z和s性, 30kd處的雜交條帶為起始於s基因起始密碼子atg表達產物的糖基化形式, 25kd的條帶可能是中蛋白的產物,而28kd的條帶可能25kd條帶的糖基化形式。
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