酸基分異 的英文怎麼說
中文拼音 [suānjīfēnyì]
酸基分異
英文
acidbase differentiation-
Be based on the reason of above, at tuberculosis the young men and women of mobile period shoulds not be marry live together, at present the many specific that fight consumptive disease is like streptomycin, isoniazid, acerbity to ammoniac willow natrium, rifampin to wait, can make much new come on the patient passes a year of to a year of half cure heal, its recrudesce rate is very low also
基於以上的原因,處在肺結核活動期的男女青年不宜結婚同居,目前有大量的抗癆特效藥如鏈黴素、異煙肼、對氨柳酸鈉、利福平等,可使大部分新發病患者經過一年到一年半治療而痊癒,其復發率也很低。The synthesis methods of isobutyl acetate catalyzed by p - toluene sulfonic acid, amino sulfonic acid, strongly acidic cationic exchange resin, ferric chloride hexahydrate, cupric chloride bi - hydrate, stannic chloride pentahydrate, ammonium ferric sulfate dodecahydrate, sodium bisulfate monohydrate, potassium bisulfate, chitosan sulfate, sodium dihydrogen phosphate, rare earth metallic oxide, solid super acid, heteropoly acid and molecular sieve etal were reviewed
摘要評述了對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水三氯化鐵、二水氯化銅、五水四氯化錫、十二水合硫酸鐵銨、一水硫酸氫鈉、硫酸氫鉀、殼聚糖硫酸鹽、磷酸二氫鈉、稀土金屬氧化物、固體超強酸、雜多酸和分子篩等催化劑催化合成乙酸異丁酯的方法。Researches of schistosomiasis vaccines have gone more than 60 years, approximately including from the stages of dead vaccine and live vaccine ( irradiated attenuated cercariae vaccine ) to gene engineered vaccine, etc. many different forms of vaccines have been tested in animal models, including gluthathione s - transferase, paramyosin, irv - 5, triose phosphate isomerase, sm23, fatty acid binding protein ; which were considered promising by who / tdr. but none of them steadily accomplished the pre - set target level of 40 % protection. in order to enhance the protective capacity further, it is essential to develop novel vaccine antigens and / or vaccine adjuvants
血吸蟲病疫苗研究已有60多年的歷史,大致經歷了死疫苗、活疫苗(照射致弱尾蚴疫苗)和基因工程疫苗等研究階段,產生了一些who / tdr推薦認為很有希望的疫苗候選分子,如谷胱甘肽- s -轉移酶( gst ) 、副肌球蛋白( sm97 ) 、照射致弱疫苗抗原5 ( irv - 5 ) 、磷酸丙糖異構酶( tpi ) 、曼氏血吸蟲膜內在蛋白( sm23 )和脂肪酸結合蛋白( fabp , sm14 )等,但其對宿主的保護作用均不甚理想,未能穩定地達到40或以上的保護力水平,因此有必要繼續尋找新的疫苗抗原分子和/或疫苗佐劑,進一步提高其保護力。Degenerate oligonucleotides to highly conserved regions of cucumis melo 1 - aminocyclopropane - 1 - carboxylic acid ( acc ) oxidase gene were used to prime the amplification of fragment of 128bp by ploymerase chain reaction ( pcr ) in samples of genomic dna from fruit of cucumis melo l. cv hetao flesh, which was cloned into plasmid vector pmd - 18 - t. the clon of antisense orientation were selected, and it was inserted downstream of camv35s promoter and enhancer " " of tmv into the plant expression vector pbinyxw, antisence expression vector pbinya was constructed. at the base that pollination and fertilization of cucumis melo l. cv hetao was studied, using pollen tube pathway transformate cucumis melo l. cv hetao, 76 fruit had been obtained, moreover, hardness and content of sugar were analysed
本實驗以河套蜜瓜果肉基因組dna為模板,用甜瓜acc氧化酶基因特異寡核苷酸鏈為引物進行pcr擴增,得到128bp的擴增產物。將得到的擴增產物克隆到質粒載體pmd - 18 - t上,篩選反向克隆,然後將其反向構建到植物表達載體pbinyxw的camv35s啟動子和tmv增強子「 」的下游,構建成反義表達載體pbinya 。並在對河套蜜瓜授粉受精生物學研究的基礎上,通過花粉管通道法轉化河套蜜瓜,共獲76顆瓜,並進行了硬度和含糖量的分析。In this thesis, the development of emulsion polymerization theory and related new technologies are comprehensively reviewed, and the synthetic technologies of acrylate latex modified by organosilicon both at home and abroad are also reviewed. based on the current development and research in this field, attentions of this study are focused on three ways for preparing novel acrylate latexes modified by organosilicons, that is, 1 ) the acrylate monomers are copolymerized with unsaturated silicons by emulsion copolymerization ; 2 ) a new latex with microphase separation morphology is synthesized, which shows a core - shell structure character ; 3 ) soap - free polymerization is explored for preparing a higher - performance latex using an unsaturated silicon monomer, different acrylates and a reactive emulsifier. by using techniques of delaying addition of organosilicon monomer and a hydrolysis inhibitor, the hydrolysis and condensation of 3 - ( trimethoxysilyl ) propyl methacrylate during polymerization can be effectively prevented, as a result, organosilicon content in the macromolecular chain is increased
同時採用有機硅單體延遲滴加及添加水解抑制劑等技術,有效防止了-甲基丙烯酰氧基丙基三甲氧基硅烷在乳液聚合過程中的過渡水解及縮合反應,提高了聚合物大分子鏈中有機硅鏈節的含量;利用紅外光譜與差示掃描量熱儀對產物分子結構進行了表徵,並通過對共聚產物力學和吸水率的測試,證實了本研究所制備的有機硅改性丙烯酸酯共聚物具有比純丙烯酸酯聚合物更優良的力學及耐水性能;從分子設計角度出發,利用醇解反應合成出水解、縮合反應速率較慢的兩種新型不飽和有機硅單體: ?甲基丙烯酰氧基丙基三乙氧基硅烷和?甲基丙烯酰氧基丙基三異丙氧基硅烷;利用核磁共振對新型硅烷單體結構進行了證實;研究表明利用新型硅烷單體可以制備出高硅烷含量的有機硅改性丙烯酸酯乳液,且其聚合產物具有較高的力學及耐水性能。An one - pot process including direct condensation of ethyl isodehydracetate and hydrocitronellal, followed by decarboxylation, isomerization and isomer resolution, was developed for practical preparation of zr juvenile hormone analogue series with high content of effective component
以異脫氫乙酸乙酯與甲氧基香茅醛直接縮合為起點,將縮合、脫羧、異構化、 (順、反)異構體拆分等採用多步反應連續一鍋法的操作方法,成功地得到高有效含量的zr型保幼激素類似物。The 600 bp and 800 bp pcr products were cloned into the pgem - t easy vector. their cdna sequences were determined with positive clones or purified pcr product. conclusion : compared the 600 bp pcr product with the amino acids sequence for the fibrinolysin metalloproteinase from the venom of agkistrodon acutus from the southern of anhui province, their homology is 90. 6 %
結果:其中一對引物擴增得到一600bp產物;另一對引物擴增得到三條特異性的dna條帶,大小分別為1 . 5kb 、 1 . 3kb和800bp ,將600bp和800bpdna進行克隆及測序,並推導編碼的氨基酸序列。Threonine an amino acid derived from aspartic acid. it is broken down to form glycine and acetyl coa. isoleucine can be synthesized from threonine
蘇氨酸:由天冬氨酸衍生的一種氨基酸。可分解為甘氨酸和乙酰輔酶a 。還可以用於合成異亮氨酸。Prepare the oligonucleotide probes designed 16 probes as four groups according to hla - dqa1 sequence in genbank and modify each probes by ammonia at 5 ' - end. then resuspended the lyophilized probes in ph = 9, 0
寡核苷酸探針的制備根據genbank數據庫新近公布的hla - dqa1等位基因序列,設計四組共16條特異性寡核苷酸分型探針,並在各5 』端做氨基修飾。The system propazine : methacrylic acid was used as a model for the preparation of molecularly imprinted fibers, and its ability to selectively rebind triazines was evaluated
2 -氯- 4 , 6 -二(異丙氨基) - 1 , 3 , 5 -三嗪系統:用甲基丙烯酸做模型制備分子印跡纖維,並對其選擇性吸附三嗪化合物的能力進行評估。This sequence emergences fourteen times from 1000 ests library indicts that it is a middle affluently gene in cdna library. the cdna of 634 basepairs contains an open reading frame of 339 nucleotides encoding a novel nonspecific lipid transfer protein. the first 23 amino acids constitute the putative signal peptide, characteristic for targeting to the secretory pathway
測得th - nsltp序列全長為634bp ,含有一個非特異性脂轉移蛋白與植物耐逆性的相關性研究編碼112個氨基酸的閱讀框架, n端的23個氨基酸組成一段信號肽序列,表明它可能和分泌有關。Fachb440 was higher than that in the others. alignment based on deduced amino acid sequences indicated that spirulina fachb440 was different from that in other three samples of arthrospira. nucleotide sequence similarity among the three strains of the genus of arthrospira ( 96. 5 - 99. 6 % ) was higher than that between arthrospira and spirulina ( 78. 1 - 78. 5 % )
Maximaouqdsm )采螺旋藻( spirulinafachb440 ) rubisco大亞基基因( rbcl )部分片段並進行了序列測定與分析,結果表明:螺旋藻( spirulinafachb440 )的gc含量比其他的節旋藻品系高;氨基酸序列分析發現螺旋藻與其他節旋藻品系的差異較大;螺旋藻與節旋藻核著酸序列相似性約為78The cyst cells enclosing spermatomeres maybe synthesize a kind of scf - like protein, which can recognize specially the c - kit receptor on the cellular membrane of spermatomeres. then c - kit is activated, dimerizing and autophosphorylating. at the same time, the tyrosine kinase domain of c - kit is activized, which phosphorylates the proteins that have sh2 domain
精母細胞周圍的囊細胞可能合成scf樣蛋白,特異地識別精母細胞膜上的c - kit受體,並刺激c - kit發生二聚化、自體磷酸化,激活胞內酪氨酸激酶活性,活化具有「 sh _ 2結構域」的靶蛋白,可能通過一系列信號級聯,最終激活與減數分裂的相關蛋白或基因。The close genetic relationship of goose parvoviruse and aav allows the examination of the molecular biological properties of the nonstructural proteins of gpv. after the gpv infected the cell the viral life cycle was regulated by the nonstructural proteins encoded by the virus. according to the published of gpv b strain genome nucleotide sequences in genbank and a pair of specific primers were disigned with oligo4. 1
本研究根據genbank發表的gpvb株全基因序列,藉助oligo4 . 1軟體設計一對引物,採用pcr技術擴增gpvh1株非結構蛋白ns2基因,並與pmd18 - t載體連接后測序,結果表明:鵝細小病毒h1株ns2基因核苷酸全長1356bp ,編碼451個氨基酸殘基,與gpvb株的ns2基因相比,核苷酸數目相同,有17個堿基、 6個氨基酸的差異;同源性分析表明:二者核苷酸序列同源性為98 . 75 ,推導氨基酸序列同源性為98 . 67 。And one end of the modifying molecule links substrate through silane molecule, the other end catches tio2 particle with sulfo group, so the film has large surface area and excellent stability
該修飾分子一端通過硅烷分子連接載體,另一端利用磺酸基來捕捉二氧化鈦粒子,因此二氧化鈦薄膜具有較大的表面積和優異的穩定性。The rest mutations in pp38 and pp24 are at random. sequence analysis also shows the first 195 nuclear acids of pp38 and pp24 are the same except for the 81 site ( g / c ), but this mutation does not cause the change of amino acid. we regard this as a genetic marker connecting with geography in the evolution of mdv but not related to isolated time and pathotype of different strain of mdv i
對pp24基因和pp38基因進行同源性比較分析的結果表明,絕大多數毒株二者的前195個核苷酸完全一致,不同毒株間的第81位核苷酸的差異( g / c )並不引起編碼的氨基酸變化,僅僅與地域分佈有關,這很可能是mdv在長期病毒衍化過程中形成的地域性遺傳標志,而與病毒的分離年代及mdv的致病型等因素無關。Major difference of f gene lies in no. 1 - no. 32 amino acid residues on n - terminal, which is the signal sequence of f protein and cut off short after the new peptide of f protein is combined with the membrane of vesicle. the sequence is not the composition of the f protein and the evolutronary force it bears is very small
氨基酸的差異主要集中在n端1 - 32殘基,該序列為f蛋白的信號序列,在f蛋白新生多肽與囊膜泡結合后不久被切下來,因此他不是功能性f蛋白的構成成分,所承受的進化強制就很小。This article, with the help of gis, first uses geostatistics to study temporal and spatial changing of soil fertility factors, such as oganic matter total n total p, total k available k available p ph and cec, in wujin city in nearly 20 years, and draws these conclusions : soil acidification of large area exists in the city, the content of n is generally lower but it tends to rise, the content of p and k is lower and it ' s still lowering, the content of organic matter is medium but it tends to add, cec ' s quality grade is higher but its content is lowering
土壤肥力質量時空演變對于農業生態與社會、經濟的持續發展意義重大,而gis在土壤肥力質量評判中發揮日益重要的作用。本文首先基於gis支持下,運用地統計學,研究了武進市近20年全n 、全p 、全k 、有效p 、有效k 、 ph 、 cec和有機質等土壤肥力要素的時空分異狀況,得出:存在大面積土壤酸化現象、 n素含量總體較差但趨于提高、 p素和k素含量較低且繼續降低、有機質含量中等但有增加趨勢、 cec質量等級較高但含量趨下降。The quinolone resistance - determining region ( qrdr ) of gyra gene of 19 resistance isolates was amplified by pcr, sequenced and their amino acid mutations were analyzed. the results revealed that 9 isolates contained a mutation in gyra of a serine at position 83 ( ser83 ) to a phenylalanine, and 1 isolate exhibited a mutation of ser83 to a tyrosine, and 6 isolates that were resistant to more than six kinds of fluoroquinolones showed a mutation asp87 to asparagine at the same time
採用pcr技術擴增了對喹諾酮類藥物耐藥的19株禽源沙門氏菌分離菌株gyra基因qrdr ,經純化、測序和序列分析表明, 19株耐藥菌株中有10株第83位氨基酸發生了變異,其中有9株由絲氨酸( s )變異為苯丙氨酸( f ) , 1株由絲氨酸變異為酪氨酸( y ) 。Thus, it would shorten the time of staying in water column, and prevent from being ingested before sinking to the sea - bottom. 3
蛋白質的氨基酸分析表明,組成兩種卵蛋白質的氨基酸組分相同,含量雖存在差異,但大體上一致。分享友人