abstract：:The marine blood clam species Anadara granosa (L) belong to arcidae, a family with some extraordinary haematological features. The plasma of this species exhibited strong haemagglutinating activities, from which a galactosyl binding lectin, Anadarin P, was purified in a single step affinity chromatography using Sephar...

journal_title：Molecular and cellular biochemistry

authors： Dam TK,Sarkar M,Ghosal J,Choudhury A

更新日期：1992-11-04 00:00:00

abstract：:Vascular endothelial and -smooth muscle cells have been shown to use fatty acids as substrates for oxidative phosphorylation. Endothelial cells are more vulnerable to oxidative stress than muscle cells and are prone to loose carnitine early during hypoperfusion. This has been suggested by two observations. The first i...

journal_title：Molecular and cellular biochemistry

authors： Hülsmann WC,Dubelaar ML

更新日期：1992-10-21 00:00:00

abstract：:The incorporation of radiolabeled arachidonic acid (3[H]-AA) in normoxic cardiomyocytes (MC), cardiac endothelial cells (EC) and fibroblast-like cells (FL) isolated from adult rat heart was studied. Deposition of 3[H]-AA in the cellular lipid pool was assessed with biochemical and autoradiographic techniques. Extracti...

journal_title：Molecular and cellular biochemistry

authors： Linssen MC,Willemsen PH,Heijnen VV,van der Vusse GJ

更新日期：1992-10-21 00:00:00

abstract：:In rat cardiac sarcolemmal membranes a phosphoinositide-specific phospholipase C (PLC) was found to be present. The enzyme hydrolysed exogenous [3H-]phosphatidylinositol 4,5-biphosphate ([3H-]PtdIns(4,5)P2) in an optimized assay mixture containing 15 micrograms SL protein, 100 mM NaCl, 1 mM free Ca2+, 14 mM Na-cholate...

journal_title：Molecular and cellular biochemistry

authors： Meij JT,Panagia V

更新日期：1992-10-21 00:00:00

abstract：:We have identified by immunoblotting and ADP-ribosylation by cholera toxin and pertussis toxin the presence of Mr 43 and 46 KDa Gs alpha, and 39 and 41 KDa Gi alpha subunits in rat parotid gland plasma membranes but not in granule membranes. A Mr 28 KDa polypeptide that served as substrate for ADP-ribosylation by both...

journal_title：Molecular and cellular biochemistry

authors： Ali N,Agrawal DK,Cheung P

更新日期：1992-10-07 00:00:00

abstract：:Glycosaminoglycans were extracted from normal, inflamed and phenytoin induced overgrowth of human gingival tissue by proteolysis and alcohol precipitation. Extracts were run in a Dowex-1 column and the fractions were treated with mucopolysaccharidases. Cellulose acetate electrophoresis was carried out with or without ...

journal_title：Molecular and cellular biochemistry

authors： Suresh R,Puvanakrishnan R,Dhar SC

更新日期：1992-10-07 00:00:00

abstract：:Lipoamidase is found to be able to release various membrane-anchored enzymes from the membrane compartment of pig brain. Released enzymes revealed their intact enzyme activities in the soluble fraction. Lipoamidase could release at least two types of anchored enzymes, i.e. glycosyl-phosphatidylinositol-bonded and myri...

journal_title：Molecular and cellular biochemistry

authors： Oizumi J,Hayakawa K

更新日期：1992-09-22 00:00:00

abstract：:Homogenates and plasma membranes were isolated from the livers of male Fischer 344 rats ranging in age from 19 hr to 92 days postnatal. These plasma membranes exhibited comparable levels of purity: protein yields were 2-2.5%; relative specific activities of 5'-nucleotidase and ouabain-sensitive Na+/K(+)-ATPase were fr...

journal_title：Molecular and cellular biochemistry

authors： Sulakhe-Hemmings SJ,Pulga VB,Tran ST

更新日期：1992-09-22 00:00:00

abstract：:To differentiate whether the primary volume signal in dog red cells arises from a change in cell configuration or the concentration and dilution of cell contents, we prepared resealed ghosts that had the same surface area and hemoglobin concentration as intact cells but less than 1/3 their volume. Shrinkage of both in...

journal_title：Molecular and cellular biochemistry

authors： Parker JC,Colclasure GC

更新日期：1992-09-08 00:00:00

abstract：:The regulation of the guinea-pig pancreatic acinar plasma membrane Ca2+ pump by protein kinase A, protein kinase C and calmodulin was investigated. The results were compared with the effects of these regulators on the high affinity Ca(2+)-ATPase found in this membrane preparation. The catalytic subunit of cyclic AMP-d...

journal_title：Molecular and cellular biochemistry

authors： Mahey R,Allen BG,Bridges MA,Katz S

更新日期：1992-06-26 00:00:00

abstract：:Gastrin has significant growth and metabolic effects on colonic mucosal cells. It is, however, not known if gastrin receptors are present on colonic mucosal cells that may directly mediate the reported biological effects of gastrin. In the present studies, the presence of specific gastrin binding sites on colonic muco...

journal_title：Molecular and cellular biochemistry

authors： Narayan S,Chicione L,Singh P

更新日期：1992-06-26 00:00:00

abstract：:In this paper we review some of the large quantities of information currently available concerning the identification, structure and function of Ca(2+)-binding proteins of endoplasmic and sarcoplasmic reticulum membranes. The review places particular emphasis on identification and discussion of Ca2+ 'storage' proteins...

journal_title：Molecular and cellular biochemistry

authors： Milner RE,Famulski KS,Michalak M

更新日期：1992-05-13 00:00:00

abstract：:The naturally occurring flavonoid, quercetin, in the presence of Cu(II) and molecular oxygen caused breakage of calf thymus DNA, supercoiled pBR322 plasmid DNA and single stranded M13 phage DNA. In the case of the plasmid, the product(s) were relaxed circles or a mixture of these and linear molecules depending upon th...

journal_title：Molecular and cellular biochemistry

authors： Rahman A,Fazal F,Greensill J,Ainley K,Parish JH,Hadi SM

更新日期：1992-04-01 00:00:00

abstract：:The accessibility of pyridoxal 5'-phosphates of the phosphorylase ab hybrid to resolution by imidazole citrate and cysteine was studied and compared with that of the b and a forms. Promotion of resolution of phosphorylated forms by raising the temperature or in the presence of glycogen indicates that the resistance of...

journal_title：Molecular and cellular biochemistry

authors： Vereb G,Pallagi E,Gergely P

更新日期：1992-03-25 00:00:00

abstract：:This work investigates the effect of alloxan-induced short-term diabetes (24 h) on D-3-hydroxybutyrate metabolism at physiological and non-physiological concentrations of the ketone body in the isolated non-working perfused rat heart. Also the effect of insulin (2 mU.ml-1) on D-3-hydroxybutyrate metabolism was investi...

journal_title：Molecular and cellular biochemistry

authors： Sultan AM

更新日期：1992-03-04 00:00:00

abstract：:In rat adipocytes, the insulin stimulation of the rate of glucose uptake is due, at least partially, to the recruitment of glucose transporter proteins from an intracellular compartment to the plasma membrane. Vanadate is a known insulin mimetic agent and causes an increase in the rate of glucose transport in rat adip...

journal_title：Molecular and cellular biochemistry

authors： Päquet MR,Romanek RJ,Sargeant RJ

更新日期：1992-02-12 00:00:00

abstract：:Evidence suggests that endothelial cell layer heparan sulfate proteoglycans include a variety of different sized molecules which most likely contain different protein cores. In the present report, approximately half of endothelial cell surface associated heparan sulfate proteoglycan is shown to be releasable with solu...

journal_title：Molecular and cellular biochemistry

authors： Lowe-Krentz LJ,Thompson K,Patton WA 2nd

更新日期：1992-01-15 00:00:00

abstract：:One of the atrial natriuretic factor (ANF) receptors is a 180 kDa protein (180 kDa mGC) which possesses the extraordinary characteristic of being bifunctional: it is both a receptor and a guanylate cyclase. In addition to the 180 kDa mGC, there exists another 120-130 kDa protein which is also bifunctional and a 120 kD...

journal_title：Molecular and cellular biochemistry

authors： Marala RB,Sharma RK

更新日期：1992-01-15 00:00:00

abstract：:The epithelial cells of the human intestine exhibit a cholinesterase activity which is restricted to the apex of the villi. This activity displays a maximum in the colon and a minimum in the jejunum. Contrary to most of the studied vertebrates, the human cells present both acetylcholinesterase and butyrylcholinesteras...

journal_title：Molecular and cellular biochemistry

authors： Sine JP,Ferrand R,Cloarec D,Lehur PA,Colas B

更新日期：1991-12-11 00:00:00

abstract：:To identify and characterize endothelial cell surface components that bind plasminogen, we used ligand-blotting to study binding of plasminogen to sodium dodecyl sulphate solubilized extracts of human umbilical vein endothelial cells. It was observed that glu-plasminogen bound predominantly to a 45 kDa endothelial cel...

journal_title：Molecular and cellular biochemistry

authors： Dudani AK,Hashemi S,Aye MT,Ganz PR

更新日期：1991-12-11 00:00:00

abstract：:Cultured endothelial cells have been used in the past as a source of endothelium-derived relaxing factor (EDRF) and of prostacyclin (PGI2). Although cell cultures are essential for observation of prolonged exposure to media or when there is delayed response, they are time consuming and sterile conditions are essential...

journal_title：Molecular and cellular biochemistry

authors： Kibira S,Dudek R,Narayan KS,Bing RJ

更新日期：1991-11-13 00:00:00

abstract：:The purified Ca2+/Mg2+ ATPase from rat heart plasma membrane was activated by Ca2+ and Mg2+ with Ka values of 1.47 mM and 2.51 mM, respectively; other divalent cations also activated the enzyme but to a lesser extent. Divalent cations like Cu2+, Zn2+, Ni2+, Cd2+ were potent inhibitors of the enzyme activity in the pre...

journal_title：Molecular and cellular biochemistry

authors： Zhao D,Elimban V,Dhalla NS

更新日期：1991-10-16 00:00:00

abstract：:The present study was designed to induce massive accumulation of calcium in the myocardium and to evaluate the effect of calcium overload on myocardial contractile function and biochemical activity of cardiac subcellular membranes. Rats were treated with an oral administration of 500,000 units/kg of vitamin D3 for 3 c...

journal_title：Molecular and cellular biochemistry

authors： Takeo S,Tanonaka R,Tanonaka K,Miyake K,Hisayama H,Ueda N,Kawakami K,Tsumura H,Katsushika S,Taniguchi Y

更新日期：1991-10-16 00:00:00

abstract：:Cytochrome c oxidase (COX), like other multi-subunit components of the respiratory chain, is controlled by both the nuclear and the mitochondrial genome. In order to find wether there is a close relationship between mRNAs encoded by the nucleus and by the mitochondrion, and between these mRNAs and enzyme activity, we ...

journal_title：Molecular and cellular biochemistry

authors： Gagnon J,Kurowski TT,Wiesner RJ,Zak R

更新日期：1991-09-18 00:00:00

abstract：:Placental chorionic somatomammotropin (hCS-A or B) and growth hormone variant (hGH-V) are members of the human growth hormone family, and are related by structure and function to pituitary growth hormone (hGH-N). However, while the hGH-N gene is expressed specifically in the anterior pituitary, hGH-V and hCS are produ...

journal_title：Molecular and cellular biochemistry

authors： Nickel BE,Nachtigal MW,Bock ME,Cattini PA

更新日期：1991-08-14 00:00:00

abstract：:The purpose of this study was to determine if selected biochemical parameters representing the contractile and calcium regulating systems of cardiac muscle scaled among mammals having inherently different resting heart rates (RHR). Eight mammalian species with RHR ranging from 51 to 475 beats per minute (bpm) were stu...

journal_title：Molecular and cellular biochemistry

authors： Hamilton N,Ianuzzo CD

更新日期：1991-08-14 00:00:00

abstract：:Mature uteroferrin (Uf; Mr = 35,500) is a progesterone-induced acid phosphatase secreted by the pig uterus. It contains a single, unphosphorylated, high mannose-type oligosaccharide. Endometrial explants cultured in vitro secrete Uf with a Mr of 37,000 (37k Uf) having phosphorylated high mannose oligosaccharides. In t...

journal_title：Molecular and cellular biochemistry

authors： Baumbach GA,Saunders PT,Ketcham CM,Bazer FW,Roberts RM

更新日期：1991-07-10 00:00:00

abstract：:Microtubule-associated proteins (MAPs) were separated from tubulin with several different methods. The ability of the isolated MAPs to reinduce assembly of phosphocellulose purified tubulin differed markedly between the different methods. MAPs isolated by addition of 0.35 M NaCl to taxol-stabilized microtubules stimul...

journal_title：Molecular and cellular biochemistry

authors： Fridén B,Wallin M

更新日期：1991-07-10 00:00:00

abstract：:The (Ca2+ + Mg2+) ATPase which serves as a Ca2+ pump in the kidney basolateral membranes is essential to the maintenance of an intracellular Ca2+ concentration optimal for kidney function. Since atrial natriuretic peptide (ANP) is known to participate in the Ca2+ homeostasis mechanism, altered levels of ANP in diabete...

journal_title：Molecular and cellular biochemistry

authors： Sahai A,Ganguly PK

更新日期：1991-06-26 00:00:00

abstract：:Acanthamoeba rRNA transcription involves the binding of a transcription initiation factor (TIF) to the core promoter of rDNA to form the preinitiation complex. This complex is formed in the absence of RNA polymerase I, and persists for multiple rounds of initiation. Polymerase I next binds to form the initiation compl...

journal_title：Molecular and cellular biochemistry

authors： Paule MR,Bateman E,Hoffman L,Iida C,Imboden M,Kubaska W,Kownin P,Li H,Lofquist A,Risi P

更新日期：1991-05-29 00:00:00

abstract：:Glucocorticoids inhibit transcription of the genes encoding rRNA (rDNA) in P1798 lymphoma cells. This is due to a decrease in the amount or activity of a transcription factor, called TFIC. TFIC has been purified to apparent homogeneity and the properties of this protein have been investigated in detail. TFIC is tightl...

journal_title：Molecular and cellular biochemistry

authors： Mahajan PB,Thompson EA

更新日期：1991-05-29 00:00:00

abstract：:Angiotensin II has previously been reported to have in vivo and in vitro cardiac hypertrophic effects. We used the salt-sensitive Dahl rat genetic strain to separate mechanical (pressure overload) vs. hormonal (renin-angiotensin system) input in cardiac hypertrophy. Blood pressure was significantly increased and left ...

journal_title：Molecular and cellular biochemistry

authors： Peeler TC,Baker KM,Esmurdoc CF,Chernin MI

更新日期：1991-05-29 00:00:00

abstract：:The exchange of protons and deuterons by phosphoglucoisomerase during the single passage conversion of D-[2-13C,1-2H]fructose 6-phosphate in H2O or D-[2-13C]fructose 6-phosphate in D2O to D-[2-13C]glucose 6-phosphate, as coupled with the further generation of 6-phospho-D-[2-13C]gluconate in the presence of excess gluc...

journal_title：Molecular and cellular biochemistry

authors： Malaisse WJ,Liemans V,Malaisse-Lagae F,Ottinger R,Willem R

更新日期：1991-05-15 00:00:00

abstract：:DEAE-cellulose column chromatography of Neurospora crassa soluble mycelial extracts leads to the resolution of three major protein kinase activity peaks designated PKI, PKII, and PKIII. PKII activity is stimulated by Ca2+ and Neurospora or brain calmodulin. Maximal stimulation was observed at 2 microM-free Ca2+ and 1 ...

journal_title：Molecular and cellular biochemistry

authors： Ulloa RM,Torres HN,Ochatt CM,Téllez-Iñón MT

更新日期：1991-04-10 00:00:00

abstract：:Cytochrome P450 is known to cause carcinogen activation and correspondingly increased cancer risk in animal models. In order to determine whether P450 in the colon may be involved in cancer development in the human, the human colon cell line LS174T was examined for the presence of various cytochromes P450. Two isozyme...

journal_title：Molecular and cellular biochemistry

authors： White TB,Hammond DK,Vásquez H,Strobel HW

更新日期：1991-03-27 00:00:00

abstract：:Using a synthetic peptide that encompasses the zinc finger domain of the eukaryotic transcription factor Sp1, we produced a number of monoclonal antibodies that specifically reacted with the target antigen. Analysis by competitive inhibition assay of five of the monoclonal antibodies revealed that they all recognized ...

journal_title：Molecular and cellular biochemistry

authors： Katai H,Terato K,Raghow R

更新日期：1991-02-27 00:00:00

abstract：:Glucose-6-phosphatase activity was measured in rat liver or pancreatic islet crude homogenates and microsomes. The data recorded in the liver were comparable to those reported in prior studies. However, in the islets, the hydrolysis of D-glucose 6-phosphate by disrupted microsomes represented, when expressed relative ...

journal_title：Molecular and cellular biochemistry

authors： Perales MA,Sener A,Malaisse WJ

更新日期：1991-02-27 00:00:00

abstract：:'Enzyme stabilization' is one of the most important fields in basic and applied enzymology. In basic enzymology, it is of particular relevance to understand enzyme stabilization principles first elucidating how and why the enzymes lose their biological activity and then deriving structure-stability relationships exist...

journal_title：Molecular and cellular biochemistry

authors： Gianfreda L,Scarfi MR

更新日期：1991-02-02 00:00:00

abstract：:Original studies with rat adrenocortical carcinoma identified a 180 kDa cell-surface protein which contained both guanylate cyclase and atrial natriuretic factor (ANF) receptor, representing a potentially new type of bifunctional receptor protein. It is both a receptor and a guanylate cyclase. This critical conclusion...

journal_title：Molecular and cellular biochemistry

authors： Marala RB,Sharma RK

更新日期：1991-01-16 00:00:00

abstract：:Plasma membrane fractions from normal, regenerating liver and the AS-30D ascites hepatocarcinoma exhibited a high degree of enrichment when a set of plasma membrane enzyme markers were studied in comparison to the ones associated to the mitochondrial and cytosolic compartments. While the (Ca2+, Mg2+)-ATPase observed f...

journal_title：Molecular and cellular biochemistry

authors： Mas-Oliva J,Pérez-Montfort R,Cárdenas-García M,Rivas-Duro M

更新日期：1991-01-16 00:00:00