The optimal co-ordination mode for the hydration of complementary bases G-C, A-T in B-DNA molecule has been derived by using quantum chemical calculations and empirical potential energy functions.
本文通过对B—DNA分子中互补碱基对A—T、G—C水合作用的量子化学计算以及最优化处理求得了它们水合作用的最优配位模式。
Those are also symptoms of a deficiency of B-12, a key nutrient needed to make red blood cells and DNA and keep the nervous system working right.
这也是维生素b - 12缺乏的症状，B - 12是合成红细胞和DNA、维持神经系统正常运转的不可或缺的营养物质。
Franklin's achievement was to discover that previous X-ray photos of DNA were hard to interpret because DNA crystallizes in two forms, known as a and b, depending on their water content.
富兰克林的造诣就是发现之前的DNA的X光照片很难解读，因为DNA有两种结晶体——A型和B型——取决于含水量。
Crick, who saw a photo only of Dr. Franklin's B form, immediately recognized that DNA consisted of two parallel helixes, or twisted chains, running in opposite directions.
克里克见过富兰克林的B型照片，立即发现DNA包含反向旋转的两个并列螺旋列或叫扭曲链。
Objective To explore the correlation between the immune markers of HBV and HBV-DNA for the diagnosis and treatment of hepatitis b.
目的探讨乙肝病毒免疫标志物与HBV - DNA之间的相互关系，为临床诊断和治疗提供有价值的判断标准。
Enhanced UV-B radiation could increase crops' flavonoid content but decrease their chlorophyll content and photosynthesis, induce gene change, and result in DNA damage and change of protein content.
辐射增强，作物叶片类黄酮含量增加、叶绿素含量降低、光合作用减弱，同时UV - B辐射诱致基因活性变化，导致DNA损伤和蛋白质含量的改变。
Plant could repair DNA damage induced by UV-B through many methods, mainly included light-repair, base excision repair, nucleotide excision repair and recombination repair etc.
植物可以通过多种途径来修复紫外诱导的DNA损伤，主要包括光修复、碱基切除修复、核苷酸切除修复和重组修复等。
Objective To evaluate the clinic implication of hepatitis B virus DNA in saliva for diagnosis and treatment.
目的评估唾液乙肝DNA检测在乙型肝炎的诊断及治疗方面的意义。
Conclusions the relatively high ALT level, low HBV DNA ration and early virus response are the major factors that affect the curative effect of lamivudine in treating chronic hepatitis B.
结论治疗前较高的ALT水平，较低的HBVDNA定量值及出现早期病毒学应答是影响拉米夫定治疗慢性乙型肝炎疗效的主要因素。
To study the effect of spore rec assay with B. subtilis with an additional cold incubation to determine the DNA damage of metal and indirect mutagens.
研究枯草杆菌芽孢重组修复试验中增加冷培养对金属化合物和间接致变物DNA损伤试验的影响。
Conclusion the combination detection of YMDD variants, HBV DNA and HBV serum markers may define HBV reinfection after liver transplantation in the patients with hepatitis b.
结论乙型肝炎肝硬化患者肝移植后预防乙型肝炎复发应采用HBVDNA、YMDD变异及血清标志物联合检测。
This review dealt with the effects of enhanced UV-B radiation on the physiological metabolism, DNA damage and protein content of crops.
本文讨论了UV - B辐射增强对作物生理代谢、DNA损伤和蛋白质含量的影响。
The transformability of plasmid DNA in B. subtilis competent cell depends on its molecular structure.
枯草芽孢杆菌感受态细胞的质粒转化与质粒的分子构型有关。
Objective To quantify the HBV DNA in saliva of chronic hepatitis B patients and to study its relation to the periodontal status of the patients.
目的观察肝炎患者中不同口腔卫生指标对唾液HBVDNA状况的影响，探讨牙周健康状况在乙型肝炎传播流行中的意义。
With the rise of salt concentration, the probability of Z-DNA increase and the torque of B-Z transition decreases.
随盐浓度的增加，Z构象存在的几率增大，B - Z转变所需的扭转力矩减小。
A biotin-labelled DNA specific for hepatitis B virus (HBV) nucleo-tide sequences was hybridized in situ to liver tissue of 129 cases with liver diseases.
应用生物素标记HBVDNA（乙肝病毒脱氧核糖核酸）作探针，对129例肝病患者肝组织作原位杂交研究。
The denatured DNA is a suitable template for transcription of the two RNA polymerase B.
两种RNA聚合酶B都适于利用变性的单链DNA作转录模板。
To investigate the change of HBV DNA in children with hepatitis B. HBVM and HBV DNA were detected by microparticle enzyme immunoassay (MEIA) and PCR respectively.
了解小儿乙型肝炎病毒(HBVDNA)复制水平的变化及其临床意义。采用微粒子酶免分析法(MEIA)检测HBVM，荧光定量pcr法检h BV DNA。
UV B signaling pathway and specific UV B receptor, DNA damage, activation of transposons, molecular damage of photosynthetic apparatus and UV B regulation of related gene expression were included.
主要讨论了UV - B信号途径及光受体，UV - B诱导的DNA损伤、转座子激活，UV - B对光合器官的分子伤害及相关基因表达的调控等。
Duck Hepatitis B Virus(DHBV) was tested in duck serum in Lanzhou area by DNA dot blot hybridization.
用血清斑点分子杂交法检测兰州地区饲养的鸭群。
Methods Serum samples from 188 chronic hepatitis B patients with lamivudine therapy were collected and quantitatively tested with real-time PCR for HBV DNA and YMDD mutations.
方法将接受拉米夫定治疗的188例患者根据治疗时间进行分组，采用实时荧光PCR方法定量检测各组患者血清HBVDNA水平和酪氨酸-甲硫氨酸-天冬氨酸-天冬氨酸（YMDD）变异。
Methods Hepatitis B serum markers and Pre-S2 antigens were tested by enzyme-linked immunosorbent assay and HBV DNA was detected by fluorescent quantitative-PCR in 982 hepatitis B patients.
方法用酶联免疫吸附试验对982例乙肝患者血清标志物和乙肝病毒前S2抗原进行检测；并用荧光定量PCR法对其进行HBV-DNA检测。
All these results suggested that UV-B induced plant growth inhibition may be mediated by cell cycle regulation and DNA damage.
以上结果表明，UV - B辐射抑制植物的生长可能受细胞周期和DNA损伤调控。
Objective To evaluate the efficacy of adefovir dipivoxil(ADV) on chronic hepatitis B(CHB) patients with HBV DNA breakthrough(>1.
目的观察阿德福韦酯挽救治疗拉米夫定治疗后HBVDNA突破患者的疗效。
To explore the extraction methods of genomic DNA of parasitic mites Demodex folliculorum (D. f. ) and Demodex brevis (D. b. ).
探索人体毛囊蠕形螨和皮脂蠕形螨DNA的提取方法。
Material B by extending clotting time that can damage the hereditary breast cancer virus chromosomes (DNA);
B物质通过延长凝血时间，可以破坏遗传性乳腺癌病毒染色体（DNA）；
BRCA1 protein forms at least three distinct complexes (BRCA1 a, B, and c) with other DNA repair proteins, and these interactions are vital for regulation of BRCA1 function.
BRCA1会和其他DNA损伤蛋白结合形成至少三种不同的复合物(BRCA1A,B和C)，这种结合对于调控BRCA1的功能是至关重要的。
BRCA1 forms at least three distinct complexes (BRCA1 a, B, and c) with other DNA repair proteins, and these interactions are vital for the regulation of BRCA1 function.
BRCA1会和其他DNA损伤蛋白结合形成至少三种不同的复合物(BRCA1A,B和C)，这种结合对于调控BRCA1的功能是至关重要的。
BRCA1 forms at least three distinct complexes (BRCA1 a, B, and c) with other DNA repair proteins, and these interactions are vital for the regulation of BRCA1 function.
BRCA1会和其他DNA损伤蛋白结合形成至少三种不同的复合物(BRCA1A,B和C)，这种结合对于调控BRCA1的功能是至关重要的。
应用推荐