Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis最新文献_第2页

Conformational change accompanying modification of myosin ATPase 肌凝蛋白atp酶修饰的构象改变

Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis Pub Date : 1966-11-08 DOI: 10.1016/0926-6585(66)90022-7

Joseph A. Duke , Roxane McKay , Jean Botts

引用次数: 29

Gradient centrifugation in colloidal silica-polysaccharide media 胶体硅-多糖介质的梯度离心

Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis Pub Date : 1966-11-08 DOI: 10.1016/0926-6585(66)90020-3

Håkan Pertoft

引用次数: 56

Properties of some model systems for transcellular active transport 一些跨细胞主动转运模式系统的性质

Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis Pub Date : 1966-11-08 DOI: 10.1016/0926-6585(66)90006-9

D.S. Parsons, J.S. Prichard

{"title":"Properties of some model systems for transcellular active transport","authors":"D.S. Parsons, J.S. Prichard","doi":"10.1016/0926-6585(66)90006-9","DOIUrl":"10.1016/0926-6585(66)90006-9","url":null,"abstract":"<div>The properties of some model systems for transcellular active transport (translocation) are described. The functioning of the models depends upon, firstly the occurrence of solute (substrate) pumping across the opposing bordering membranes of a unit cell, the membranes also being leaky to the substrate and secondly, an intrinsic asymmetry of the opposing membranes. The systems are characterized by the maintenance in the steady state of substrate concentration differences between the contents of the unit cell and its environment.Making assumptions as to the properties of the individual faces of the cell equations have been written describing the rate of translocation in terms of the parameters of substrate transport at the faces of the cell and the extracellular concentrations. Using assumed values for these parameters and concentrations, translocation rates have been calculated for various conditions. From study of the models the conditions under which translocation will occur are demonstrated and the kinetic properties of the model systems compared with experimental data.It is also shown that changes in the rates of leaking and of pumping of a substrate across the opposing faces of the unit cell can, under appropriate conditions, change the direction as well as the rate of substrate translocation. The induction of a net counterflow of one substrate through the cell (countertranslocation) can be a consequence of the presence of a second substrate which is also capable of being pumped across the bordering membranes of the cell in the same direction as the first.</div>","PeriodicalId":100158,"journal":{"name":"Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis","volume":"126 3","pages":"Pages 471-491"},"PeriodicalIF":0.0,"publicationDate":"1966-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0926-6585(66)90006-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17034299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 18

Light reduction of nitrate by chloroplasts depending on ferredoxin and NAD 叶绿体依赖铁氧还蛋白和NAD进行硝酸盐的光还原

Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis Pub Date : 1966-11-08 DOI: 10.1016/0926-6585(66)90015-X

M. Losada, A. Peneque

引用次数: 10

Binding of dyes to polycations I. Biebrich scarlet and histone interaction parameters 染料与聚合阳离子的结合I.比布里希红与组蛋白相互作用参数

Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis Pub Date : 1966-11-08 DOI: 10.1016/0926-6585(66)90011-2

James W. Winkelman, Dan F. Bradley

引用次数: 14

Dielectric dispersion of G-actin g -肌动蛋白的介电色散

Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis Pub Date : 1966-11-08 DOI: 10.1016/0926-6585(66)90014-8

Akira Minakata

引用次数: 10

Preservation of photophosphorylation in glycerinated chloroplasts 甘油化叶绿体的光磷酸化保存

Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis Pub Date : 1966-11-08 DOI: 10.1016/0926-6585(66)90003-3

Lester Packer, Ann C. Barnard

引用次数: 8

Biochimica et biophysica acta, vol. 126 (1966) 生物化学与生物物理学报》，第 126 卷（1966 年）

Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis Pub Date : 1966-11-08 DOI: 10.1016/0926-6585(66)90028-8

引用次数: 0

Membrane ATPase and electrolyte levels in marsupial erythrocytes 膜atp酶和电解质水平在有袋动物红细胞

Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis Pub Date : 1966-11-08 DOI: 10.1016/0926-6585(66)90007-0

Erica Baker, W.J. Simmonds

{"title":"Membrane ATPase and electrolyte levels in marsupial erythrocytes","authors":"Erica Baker, W.J. Simmonds","doi":"10.1016/0926-6585(66)90007-0","DOIUrl":"10.1016/0926-6585(66)90007-0","url":null,"abstract":"<div><ul><li>1.1. Individuals of the Australian marsupial species, the possum (Trichosurus vulpecula), differ in erythrocyte cation concentration. ATPase activity was measured in the fragmented membranes of erythrocytes in which potassium predominates (HK cells) and in which sodium predominates (LK cells). A comparison was made with erythrocyte membrane ATPase activity in the marsupial quokka (Setonyx brachyurus) in which sodium and potassium are present in approximately equal concentration.</li><li>2.2. All erythrocyte preparations showed basal ATPase activity. Significant (Na+-K+)-activated ATPase was present only in HK possum and quokka cells, absolute values and values relative to basal ATPase being higher in HK possum than in quokka cells.</li><li>3.3. These results suggest that the low erythrocyte potassium concentrations in LK possums may be due to the absence of (Na+-K+)-activated ATPase and pump activity in their cell membranes.</li></ul></div>","PeriodicalId":100158,"journal":{"name":"Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis","volume":"126 3","pages":"Pages 492-499"},"PeriodicalIF":0.0,"publicationDate":"1966-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0926-6585(66)90007-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"15336280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Fluorescence changes in ultraviolet-irradiated muramidase 紫外线照射下酶的荧光变化

Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis Pub Date : 1966-11-08 DOI: 10.1016/0926-6585(66)90024-0

Jorge E. Churchich

引用次数: 7