转移酶

The activities of carboxylesterase、glutathion-S-transferase and acetylcholinesterase per insect increase greatly and the properities of esterase and acetylcholinesterase change also throughout larval development from 1-day-old to 4th instar. The affinity for Asch and the sensitivity to insecticide of acetylcholinesterase in 3rd instar larvae are significantly lower than that in 4-day-old larvae.

幼虫从1日龄生长到4龄时，单头幼虫的羧酸酯酶、谷胱甘肽转移酶、乙酰胆碱酯酶活力急剧增长，4龄幼虫相对于1日龄幼虫，HJ-R、HD-S上述3种酶系的活力分别增长了148、172.6、65.6倍和203、60.9、77.4倍；生长过程中，全酯酶、乙酰胆碱酯酶的性质也发生变异，特别是从4日龄生长到3龄时，乙酰胆碱酯酶的米氏常数、双分子速率常数均发生明显的改变，3龄幼虫乙酰胆碱酯酶对底物的亲和力以及对杀虫剂的敏感性显著低于4日龄幼虫。

After transfection with human carbonic anhydrase Ⅱ cDNA, the lovo cells changed obviously with reduction in invasiveness,chemotaxy motor ability and tolerance. Conclusion Differential expression of proteins was found between colorectal cancer genesis and hepatic metastasisnegion.

结论结直肠癌原发灶和肝转移灶蛋白质组表达有显著差异，碳酸酐酶Ⅱ表达下调和精氨酸酶、谷胱甘肽S-转移酶A3增强表达可使结直肠癌细胞生物学行为发生改变并促进肝转移发生。

In search of databases, the deduced products of sanP, sanQ, sanR, sanS, sanT and sanU show highest similarity to those of nikP2, nikQ, nikR, nikS, nikT and nikU of S. tendae respectively. In comparison with the proteins of identified function, it is indicated that sanP encodes a thioesterase, sanQ encodes a cytochrome P450, sanR encodes a uracil phosphoribosyltransferase, sanS encodes a carboxylase, sanT encodes a histidinol-phosphate aminotransferase and sanU encodes a mutase.

在蛋白数据库中比较结果表明，sanP、sanQ、sanR、sanS、sanT和sanU基因编码的蛋白分别和唐德链霉菌的尼可霉素生物合成基因nikP2、nikQ、nikR、nikS、nikT、nikU六个基因编码的蛋白同源性最高；根据和已知功能蛋白的比较，推测sanP基因编码的是硫酯酶，sanQ基因编码的是细胞色素P450，sanR基因编码的是尿嘧啶磷酸核糖转移酶，sanS基因编码的是羧化酶，sanT基因编码的是组氨醇磷酸氨基转移酶，sanU基因编码的是一种变位酶。

Assulta and the induction of GST activity by nicotine and capsicine in H. assulta provided partial supports for the hypothesis that diet breadth was governed by detoxification abilities. The results also indicated that two sibling species had different strategies of adaptation to toxic substances: H. assulta saves expenditure of nutrients and energy by restricting their countermeasures to a few potentially toxic compounds. H. armigera, by contrast, must be prepared to counter a wider range of potential toxins. 5. Compared with parental species, hybrids of reciprocal hybridization had significant difference in feeding preference for hot pepper.

结果显示，广食性的棉铃虫在中肠羧酸酯酶和谷胱甘肽-S-转移酶活性方面高于寡食性的烟青虫，但烟青虫谷胱甘肽-S-转移酶活性可以被寄主植物内的烟碱和辣椒素所诱导，表明解毒酶活性在一定程度上影响着植食性昆虫的食性广度；同时也暗示着二近缘种对有毒的次生物质采取不同的适应策略：烟青虫有选择地对付种类较少的植物次生物质以减轻营养和能量的消耗；棉铃虫则必须对付存在于其寄主植物内的种类繁多的有毒次生物质。

Cuspidate with 33％ identity and 50％ similarity to taxadien-5α-ol-O-acetyltransferase, 34％ identity and 52％ similarity to 10-deacetylbaceatin Ⅲ-10-O-acetyltransferase, and 33％ identity and 49％ similarity to taxane 2α-O-benzoyltransferase, respectively, moreover, it contained the conserved HXXXDG motif that is found in other transacylases, this sequence element has been suggested to function in acyl group transfer from acyl CoA to the substrate alcohol.

No.AF448807）在氨基酸水平与大部分植物来源的酰基转移酶具有较大的同源性，其中与东北红豆杉紫杉二烯-5α-醇-乙酰转移酶的一致性达33％、相似性达50％，与东北红豆杉紫杉10-去乙酰巴卡亭Ⅲ-10-0-乙酰转移酶的一致性达34％、相似性达52％，与东北红豆杉紫杉二烯2α-0-苯甲酰转移酶的一致性达33％、相似性达49％，并且在TS4的氨基酸序列中还发现酰基转移酶家族成员特有保守序列HXXXDG，这个序列单元被认为在将酰基CoA转移至醇类底物的过程中发挥作用。

Methods: Serum alcohol and ALT、AST、GGT、ALP、CK、LDH、AMY、LIPA measured before and after beer consuming (4ml/kg) in 17volunteers. Meanwhile, the direct inhibitory effects of beer on the serum enzymes were studied by comparing the serum enzyme activities with or without beer.

利用17名健康志愿者，观察口服啤酒(4ml/kg)前后不同时间血液中酒精浓度及丙氨酸氨基转移酶、天冬氨酸氨基转移酶、γ-谷氨酰转肽酶、碱性磷酸酶、肌酸激酶、乳酸脱氢酶、淀粉酶、脂肪酶活性的变化，同时在体外加入血清中与体内浓度相近的啤酒，以观察啤酒对酶活性的直接影响。

Results After screening, 59 subtracted library clones were isolated which were specific for strain VIB72, and the DNA sequences of these clones were determined. Seventeen fragments showed high homology to the genes of known functions in other bacteria. This includes soluble lytic murein transglycosylase, mobilization protein, transposase (IS66), resistance-related protein (metallo-beta-lactamase and acetyltransferase family), toxin protein (DT-201 and alveicin A immunity protein), ATP-dependent endonuclease of OLD family like protein, SocE and GTP-binding protein HflX (high frequency of lysogenization).

通过对差减文库筛选，分离到59个对菌株VIB72的克隆，并对这些克隆的DNA序列进行了测定。17个基因片断与其它细菌的已知功能的基因有较高的同源性，其中包括可溶性溶胞壁质转糖基酶、转移蛋白MobA和MobC、转座子IS66、抑制相关蛋白（金属β-内酰胺酶和乙酰转移酶家族）、毒素蛋白（DT-201和alveicin A免疫蛋白）、与OLD 家族相似的ATP依赖性核酸内切酶以及SocE 和GTP结合蛋白HflX。

Six and twelve boors after sepsis, leptin levels in liver homogenate were detected by radioimmunoassay serum alanine aminotransferase and 4 enzymes in liver homogenate. myeloperoxidase, glutathin-S-transferase, xanthine oxidase and superoxide dismutase, all related with synthesis of free radicals, detoxication and purine metabolism, were detected by 96 well spectrophotometry. H-E staining was used to examine the histopathologic changes of liver.

于脓毒症后6 h和12 h，采用放射免疫法测量肝组织匀浆液中Leptin水平，采用96孔分光光度法检测血清丙氨酸氨基转移酶及髓过氧化物酶、谷胱甘肽－S转移酶、黄嘌呤氧化酶、超氧化物歧化酶等4种与自由基合成、解毒和嘌呤生成代谢相关的酶的水平，同时以H-E染色法观察肝组织病理学改变。

He analysis of the category and function of TCB stress inducible proteins showed that different groups of proteins were induced by 5 mg L^(-1) TCB stress. They are detoxification enzymes (including esterase, aldo/keto reductases, and glutathione S-transferase), cell wall compound metabolism related enzymes (including UDP-glucose protein transglucosylase and GDP-mannose 3,5-epimerase 1), phytohormone metabolism and regulation related enzymes or proteins (including aci-reductone dioxygenase 4, beta-glucosidase, two members of pathogenesis-related proteins from family 10), primary and secondary metabolism regulative enzymes (including translational elongation factor Tu, cytosolic orthophosphate dikinase, triosephosphate isomerases, alanine aminotransferase, and isoflavone reductase).

CB胁迫能诱导根系内不同类型蛋白质的表达，它们是：解毒酶（包括脂酶、醛／酮还原酶、谷胱甘肽－硫转移酶），细胞壁物质代谢相关酶（包括蛋白转葡萄糖基酶、GDP-甘露糖－3，5-异构酶1），激素代谢或调节相关酶（包括酸式－还原酮二加氧酶、β-葡萄糖苷酶、病程相关蛋白家族10中的2个不同蛋白），原初或次生代谢相关酶（包括转录延长因子、细胞质磷酸丙酮酸双激酶、磷酸丙糖异构酶、丙氨酸氨基转移酶和异黄酮还原酶）。

There is an increasing need to better understand the fate of domoic acid, in aquatic ecosystem. In this report, partial cDNA of hepatic cytochrome P-450 1A (CYP1A), giutathione S-transferase alpha, glutathione S-transferase rho, heat shock protein 70 (HSP70), Na~+/K~+-ATPase alpha 1(ATP 1A1) and beta-actin gene from rabbitfish were obtained by PCR using degenerate primers, which respectively were 900 bp, 582 bp, 615 bp, 660 bp, 749 bp and 554 bp in length.

本研究成功克隆了黄斑篮子鱼肝脏第Ⅰ时相去毒酶细胞色素P450 1A，第Ⅱ时相去毒酶谷胱甘肽S-转移酶alpha和谷胱甘肽S-转移酶rho(GS7R)，热休克蛋白70(HSP70)，钠钾ATP酶alpha 1(ATP1A1)和β-肌动蛋白基因的核心序列，它们分别长900 bp，582 bp，615 bp，660 bp，749 bp和554 bp。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。