Methylation of hippocampal phosphatidylethanolamine and proteins during long-lasting potentiation

Summary Whereas the monomethylation of hippocampal phosphatidylethanolamine is decreased following the induction of long-lasting potentiation of the CA₁ population spike, carboxymethylation of proteins is unaffected.This work was supported by The University of British Columbia.     

Possible involvement of protein kinase C in the stimulation of amino acid transport by phorbol ester,platelet-derived growth factor and A23187 in Swiss 3T3 cells

Summary Stimulation of amino acid transport induced by phorbol-12, 13-dibutyrate, platelet-derived growth factor or A23187 was not observed in cells lacking protein kinase C. On the other hand, stimulation of transport by epidermal growth factor or insulin was not affected. These results suggested that the stimulation of amino acid transport is mediated by at least two separate pathways.This work was supported in part by Grants-in-Aid for Scientific Research from the Ministry of Education, Science and Culture, and the Ministry of Health and Welfare of Japan.     

The effect of exercise on protein turnover in isolated soleus and extensor digitorium longus muscles

Summary The rate of protein degradation was found to be increased in isolated soleus and extensor digitorum muscles of 60–80 g rats after exercise consisting of running for 120 min. These findings support the hypothesis that exercise causes an increase in skeletal muscle protein degradation, and that both red and white muscles are affected similarly.     

求解蛋白质折叠问题的改进PERM算法

在学习PERM算法的基础上，指出了影响PERM算法效率的关键因素，进而提出了一种改进的PERM算法——IPERM(Improved PERM)．计算结果表明，IPERM的计算效率优于PERM算法，并且远高于基于蒙特卡罗的MSOE算法和基于重要性抽样的SISPER算法．     

机器人等离子熔射路径对皮膜残余应力的影响

通过对Z字形、Z字形变向 4 5°、Z字形变向 6 0°、Z字形变向 90°四种等离子熔射路径的皮膜残余应力进行测试和比较 ,得出Z字形变向 90°的熔射路径优于其他三种路径的实验结果 ,从而为建立合理的熔射工艺提供了依据     

A Coordination Model of Gene Sequences for SARS-CoV and its Receptor

IntroductionFrom the emergence of SARS CoV, manystudies havebeen done on its biological medicine aspects, such aspathogeny characteristics, mechanisms of causing disease,clinic diagnosis and treatment, bacterin development andthe spreading rules. At the level of molecule biology,studies have been done on its genome sequences characteristics, structures and functions of the translatedproteins, and the evolution relationships in sequences[1 5].The caus…     

充分开发利用农林副产品搞活农村经济

本文概述了我省农、林副产品的丰富资源及其开发前景,认为利用木屑、棉子壳、稻草、蔗渣等大力开发食用菌生产,是一种潜力巨大的再生性农业,可使农村尽快富裕起来.利用饼、粕及其他副产品做饲料,利用轻工业、食品工业的副产品做原料,发展蛋白质饲料生产,前景十分可观.     

猪血蛋白粉营养的实验研究

猪血蛋白粉是由干燥猪血粉(或新鲜猪血)经生物化学改造、脱色,加工制成的一种谷黄色粉状蛋白质制品.经多项营养分析测试结果,含蛋白质90.1%及多种元素成分,富含铁元素为193.5—200.0mg/100mg.含18种人体生长需要的氨基酸成分,其中8种人体必需氨基酸俱全.以鸡蛋蛋白质为参考模式,并与FAO/WHO标准模式进行比较分析,测得化学分为21.26%,氨基酸分为25.35%,必需氨基酸指数为56.69%.参照AOAC方法通过28天大白鼠喂养试验结果表明,猪血蛋白粉对幼龄大白鼠具有明显的促生长作用.通过体内氮平衡试验表明猪血蛋白粉对实验大白鼠FE、PER、BV、TD、NPR、NPU、NB等7项营养代谢指标的测定结果提示猪血蛋白粉具有良好的体内消化率和利用率.不失为一类具有良好开发前景的廉价高蛋白动物性氮源.     

朗谬尔探针用于VAC等离子体诊断的初步研究

简要分析了朗谬尔探针用于真空电弧镀膜等离子体诊断的可行性及理论适用性问题。介绍了一种可用于ＶＡＣ等离子体在线监测的探针诊断系统，并利用此系统分析了不同工艺参数一等离子体参数的变化。     

Modulation of protein kinases and phosphoprotein phosphatases by a small acidic protein from bovine brains

Summary A small, acidic and heat-stable protein was purified from bovine brains by column chromatography on DEAE-cellulose, Bio-Gel HTP, Affi-Gel phenothiazine and Sephadex G-75. This protein stimulates megamodulin-dependent protein kinase I from brains and phosphoprotein phosphatases from either brain or yeast. However, it inhibits cyclic AMP-dependent protein kinases from skeletal muscle.Acknowledgments. This work was supported by a grant (RR-08229) from the National Institutes of Health, USA. W.N. Kuo is a recipient of a Distinguished Faculty Scholar Award from United Negro College Fund, Inc., USA.