glycosylation 中文意思是什麼

2. the sequence of si gene from ibv - lx4 strain was consisted of 1614 bp from initiation codon atg to the possible cleavage site of spike glycoprotein, encoding for a 18 - amino signal - peptide with the n terminus of si protein and a polypeptide of 537 - amino acids. 19 highly conserved, potential glycosylation sites and 17 cysteines residues were characterized with si protein, homology analysis showe that there were gene deletion -

S1基因：其全序列共1614bp （從起始密碼子atg到s前體蛋白裂解位點） ，編碼537個氨基酸，其氨基端有一編碼18個氨基酸的信號肽序列，第12 13位氨基酸殘基構成了信號肽的切割位點， 14 19位與111 124位氨基酸殘基為s1蛋白的跨膜區域。

The length of this phytase gene is1506bp interrupted once by an intron of 102bp in the 5 " part of the gene, this intron contains donor sequence - gtatgc, lariat sequence - gctgac and acceptor sequence - cag which are typically conserved sequence of the intron of fungal phytase gene. this gene encodes a peptide of 467amino acid residues with molecular weight of 51. 37kda, containing 13 potential n - glycosylation sites and a signal peptide sequence made up of 19 amino acid residues at n teminal of the peptide

核苷酸序列分析表明， pcr擴增產物中包含有完整的phya基因，該基因全長1506bp ，其中包含一段長102bp的內含子，該內含子具有真菌植酸酶基因內含子的特徵保守序列： donor序列? gtatgc ， lariat序列? gctgac及acceptor序列? cag 。該基因編碼467個氨基酸，理論分子量為51 . 37kda ，其上有13個潛在的n -糖基化位點， n端19個氨基酸為信號肽序列，植酸酶活性位點序列（ crvtfaqvlsrhgaryptdskgk ）位於氨基酸序列的+ 71 + 93 。

And amino acids of strain mrv between antigenic site and glycosylation site is different. to some extent, it will decide and change the antigen of mrv

Mrv的抗原部位和糖基化位點氨基酸均有變異，這種變異可能在不同程度上會改變毒株的抗原性。

The enzyme digest analysis shows that the arm repeats of c - terminal are conceivably conservative domain. in arc1 protein, there are some active sites including n - glycosylation sites, camp - and cgmp - dependent protein kinase phosphorylation sites, protein kinase c phosphorylation sites, casein kinase ii phosphorylation sites, tyrosine kinase phosphorylation sites, n - myristoylation sites, amidation sites and leucine zipper pattern. it probably take part in the signaling process of self - incompatibility

同時在arc1蛋白質中還發現了拉鏈結構和多個磷酸化位點，包括camp和cgmp依賴的蛋白激酶磷酸化位點、蛋白激酶c磷酸化位點、酪蛋白激酶磷酸化位點、酪氨酸激酶磷酸化位點、糖基化位點等，拉鏈結構為arc1蛋白之間及與其它蛋白的相互作用提供了可能，而磷酸化位點是arc1參與信號傳導過程所必需的。

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所產原酶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降為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 ，明顯低於原酶的比活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抗性，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解產物的糖份分析發現：以樺木木聚糖為底物時，酶解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，酶解產物主要為木二糖和木三糖，含量分別為81 . 78和11 . 55 。

The new synthesized protein was led to endoplastic reticulum cavity by eukaryotic secretory signal peptide sequence and then anchored to innerwall of endoplastic reticulum by kdel sequence, which interdicted the process of protein entering golgi body and cytoplasm, and then avoided heterogeneous glycosylation modification of foreign protein and prolonged the disappearance of half life of protein in organism. 2

真核分泌信號肽序列可以引導新合成的蛋白質進入內質網腔， kdel序列將進入內質網腔的蛋白質錨定在內質網內壁上，從而阻斷了蛋白質進入高爾基體和細胞質的過程，進而避免了外源蛋白質的異源糖基化修飾，延長了蛋白質在生物體內的半衰期。

Human gnt - v contains 741 amino acids with six potential sites for n - glycosylation and bears high homology to gnt - v of rat. its gene is located on chromosome 2q21 containing 17 exons. gnt - v protein is encoded by exons 2 - 17 as open reading frame

人類gnt - v由741個氨基酸組成，有6個潛在的n -糖基化位點，基因定位於染色體2q21 ，含有17個外顯子，其開放閱讀框架由外顯子2 - 17進行編碼。

The glycosylation of 2 - amino - 2 - deoxy sugar

脫氧糖糖苷合成概述

Expression system renders products that are free of post - translational modifications, it is likely that the binding of crylab toxin to bt - r3 protein via protein - protein interaction and does not require glycosylation

且該受體蛋白與cry1ab的結合部位位於bt - r3受體蛋白的胞外結構域。 bt毒蛋白與鈣粘蛋白受體的結合與受體是否糖基化無關。

It is divided to extracellular and intracellular part by transmembrane domain. there are 13 n - glycosylation sites, 20 protein kinase c phosphorylation sites, 28 casein kinase ii phosphorylation sites, 4 tyrosine kinase phosphorylation sites and 15 n - myristoylation sites in the extracellular part of bt - r3 protein. an integrin recognition sequences rod lies in intracellular part of bt - r3 protein

跨膜區域（ tmd ）將它分為胞內和胞外兩個部分，它的胞外有13個潛在的糖基化位點， 20個蛋白激酶c的磷酸化位點， 28個酪蛋白激酶的磷酸化位點， 4個酪氨酸酶的磷酸化位點， 15個豆蔻（十四烷基）酰化位點；它的胞內有1個整合蛋白（ integrin ）識別位點。

The results showed that the open reading frame of chil - 15 cdna encompassed 564 base pairs ( bp ) and encoded a protein of 187 amino acids with three potential n - linked glycosylation sites, four conserved cysteine residues, two out - of - frame atg initiation codons in the 5 " untranslated region, and a signal peptide consisting of 66 amino acids. when it was compared with the published sequence of chil - 15 cdna, 7 mutant sites were found, and 5 amino acids were changed in predicted amino acids, which indicated that chil - 15 may be polymorphic

結果顯示，本研究所用白來航雞il - 15cdna5 』非編碼區有兩個框外atg起始密碼子，開放閱讀框由564bp組成，編碼187個氨基酸，其中n末端信號肽含有66個氨基酸殘基，在第48 、 149和166位的天冬酰胺殘基上有三個潛在的n -糖基化位點。

Huangyal4 was complete nucleotide sequence of 1 854 bp with a nucleotide orf ( 1575 bp ), which encoded a protein consisting of 524 aa with molecular weight of 62. 2 kda and pi of 8. 96. strongly basic ( + ) amino acids, strongly acidic ( - ) amino acids, hydrophobic amino acids and polar amino acids of the protein were 13. 74 %, 11. 64 %, 36. 45 % and 22. 70 % respectively, and predicted secondary structure of the protein revealed many conserved domains such as n - glycosylation site, protein kinase c phosphorylation site, casein kinase ii phosphorylation site, n - myristoylation site, camp - and cgmp - dependent protein kinase phosphorylation site, tyrosine kinase phosphorylation site and a cytochrome p450 cysteine heme - iron ligand signature which was typical of cytochrome p450. a - helix and b - sheet of the protein is 47. 7 %, 45. 0 % respectively

Huangya14 ）為材料分離克隆到一個細胞色素p450基因，命名為bccyp86mf5 ， cdna全長1854bp ，含1575bp的完整開放閱讀框，編碼524個氨基酸，其編碼蛋白質的分子量為61 . 2kda 、等電點為8 . 96 ；堿性氨基酸、酸性氨基酸、疏水氨基酸和極性氨基酸分別占總氨基酸的13 . 74 、 11 . 64 、 36 . 45和22 . 70 ；二級結構預測包括n -糖基化位點、依賴于camp和cgmp的蛋白激酶磷酸化位點、蛋白激酶c磷酸化位點、酪蛋白激酶磷酸化位點、酪氨基酸激酶磷酸化位點、 n -豆蔻酰化位點和細胞色素p450的典型區域，半胱氨酸亞鐵血紅素配體信號區等， -螺旋和-折疊分別佔47 . 7 、 45 . 0 ；與bccyp86mf1基因的氨基酸序列同源性達到95 . 2 ，與擬南芥cyp86c4的達到85 . 9 。

Effect of advanced glycosylation end products on the expression of connective tissue growth factor and fibronectin in cultured human mesangial cells

糖基化終產物對人腎小球系膜細胞結締組織生長因子及纖維連接蛋白基因表達的影響

Glycosylation - - the addition of carbohydrates to proteins

醣化作用- -在蛋白質上連接碳水化合物。

It was indicated that regulation of 20ahsd activity was not due to post - translational modification by either phosphorylation cycle or glycosylation, but rather at the transcription level of 20ahsd gene expression in previous research papers

以往研究表明20 hsd活性的調節不是通過糖基化、磷酸化或去磷酸化等翻譯后修飾實現的，而是以轉錄水平的調節為主。

Because expressed in escherichia coli, ricin a chain is not degraded easily for its non - glycosylation. our experiments lay a foundation for the researches that rta conjugates a monoclonal antibody to synthesize immunotoxins and the immunotoxins are used for cancer - targeted therapy

蓖麻毒素a鏈在大腸桿菌中表達，因無糖基化修飾，克服了進入體內后被迅速降解的缺點，為進一步與單鏈抗體基因嵌合表達形成單鏈免疫毒素，對腫瘤細胞進行導向治療研究奠定基礎。

Alterations in glycosylation have been proposed to participate in cell adhesion, receptor activation, cell differentiation and tissue morphogenesis. because the early embryo is composed of cells that must adhere to other embryonic cells, it seems likely that glycans modulating this adhesion would have been indispensable for early development. genetic elimination or partial abrogation of expression of some major classes of glycans, such as n - glycans, glycosphingolipids, hyaluronan and sialic acids, has been shown to be lethal during murine embryogenesis

胚胎發育過程中伴隨著細胞表面糖鏈表達水平及結構的改變，研究表明這些改變參與介導了胚胎細胞之間的粘附聯系，因此，糖鏈對于胚胎正常發育是必須的，一些糖鏈結構（如n -連接糖鏈，糖鞘脂，透明質酸，唾液酸等）的表達缺失能導致小鼠死亡于胚胎的早期發育階段。

Hydrophobicity analysis predicted a 36 - residue hydrophobic signal peptide for secretion in the n - terminus, and no transmembrane region was present, suggesting it might be a type of secretory protein. some generic and atipical n - glycosylation sites were present in clsp, suggesting that the protein might represent a glycoprotein. the clsp protein contained one cub ( clr / cls, an embryonic sea urchin protein uegf, and bone morphogenetic protein i ) domain from 39th to 164th ammo acids, which is known to be involved in protein - protein or protein - substrate interaction, and a trypsin - like serine protease domain positioned from 244th to 483rd amino acids

Clsp分子具有補體樣絲氨酸蛋白酶的多種結構特徵，包括36個氨基酸組成的疏水信號膚，一個cub （ clr / cls ， anembryonicseaurehinproteinuegf ， andbonemorphogeneticproteinl ）結構域和一個胰酶樣絲氨酸蛋白酶結構域（ t汀psin一likeserineproteasedomain ）和幾個保守的糖基化位點等，沒有發現有跨膜區的存在。

According to the deduced amino acid of g gene, there are two glycosylation sites in strain 119 and gxbm at position 37 and 319. there is few change in important neutralizing antigenic epitope and in some antigenic sites related with pathogenicity

119和gxbm株g基因推定氨基酸均有37 、 319兩個糖基化位點，重要的抗原位點及致病性相關位點基本沒有變化。

The gene was 1668bp in length, encoding the f protein composed of 553 amino acids. sequence analysis and its secondary structure prediction showed that the f protein had three major hydrophobic regions consisting of about 25 amino acids, six potential glycosylation sites and thirteen cysteines. a sequence region of basic amino acids, rrqrrf, was found at the f, - f2 cleavage site, indicating that f4ge9 was a typical virulent strain

序列分析和二級結構預測表明， f _ （ 48 ） e _ （ 9 ）株f蛋白含有3個分別由25個氨基酸組成的疏水區，存在6個潛在的糖基化位點， 13個半胱氨酸殘基，裂解位點區域的氨基酸序列為rrqrrf ，說明f _ （ 48 ） e _ 9株是一株典型的強毒株。