Polyacrylamide-agarose beads for the preparation
RESULTS AND DISCUSSION In table 1 the quantities of proteins coupled to glutaraldehyde-activated polyacrylamide-agarose beads (AcA34) using various concentrations of proteins and beads are given. Under the conditions described, 0.4 to 2.0 mg of proteins per ml of polyacrylamide-agarose gel were found to be fixed.
The beads were then washed 5 times with 1 ml Tris-Buffered Saline (TBS: 50 mM Tris-HCl, pH 7.5; 150 mM NaCl) per wash to remove any unbound proteins and stored in TBS as a 50% suspension at 4 掳C.
Polyacrylamide-protein immunoadsorbents prepared with
Coupling of proteins to activated polyacrylamide beads 10 ml of 0.1 M phosphate buffer pH 7.4 containing 15 to 30 mg of protein were mixed with 10 ml of centrifuged (3,000 g, 10 min, 4 ) activated beads and the suspension was allowed to rotate slowly at room temp. overnight or, in some experiments, for 48 hr at 4 .
1. Biochem Biophys Res Commun. 1971 Dec 17;45(6):1574-80. Proteins coupled to polyacrylamide beads using glutaraldehyde. Weston PD, Avrameas S.
Exposed protein on the intact human erythrocyte | Biochemistry
Identification of surface proteins of a bacterial membrane using thiolactone-activated polyacrylamide beads. Biochimica et Biophysica Acta (BBA) - Biomembranes 1980, 602 (1) , 24-31. DOI: 10.1016/0005-2736(80)90286-2.
Finally, methods using CNBr make no provision for the introduction of a spacing-arm between the supporting beads and the protein to be coupled (Cuatrecasas, 1970. 1972; Porath and Sundberg, 1972). Recently, the N-hydroxysuccinimide ester of agarose '(Cuatrecasas and Parikh, 1972) has permitted to circumvent the requirement for cyanogen bromide.
Barley cysteine protease PAP14 plays a role in degradation
For this purpose, the labelled proteins were solubilized in sodium phosphate buffer [25 mM sodium phosphate, 0.05% (v/v) Triton X-100, 0.4 mM PMSF, 4 碌M EDTA, 20 碌M E-64, pH 7.4] and incubated with streptavidin-coupled magnetic beads (Sigma-Aldrich) for 1 h at room temperature with gentle shaking.
Cyclic 尾-1,2-glucans (C尾G) are periplasmic homopolysaccharides that play an important role in the virulence and interaction of Brucella with the host. Once synthesized in the cytoplasm by the C尾G synthase (Cgs), C尾G are transported to the periplasm by the C尾G transporter (Cgt) and succinylated by the C尾G modifier enzyme (Cgm). Here, we used a bacterial two-hybrid system and
Development of Ss-NIE-1 Recombinant Antigen Based Assays
Briefly, beads were washed and activated in buffer containing 50mM MES, pH 5, 0.85% NaCl, and 0.05% Tween-20. After 40 minutes of incubation using end-over-end mixing in the dark with Sulfo-NHS and EDC, beads were washed 2 times with MES buffered saline. The activated beads were then transferred to a new tube and washed once more.
Images were captured using a charged-coupled camera (Andor Ixon3, Andor Oxford Instruments, Oxfordshire, UK). Images were digitized using Olympus Fluoview Viewer software.
Exposed protein on the intact human erythrocyte | Biochemistry
Identification of surface proteins of a bacterial membrane using thiolactone-activated polyacrylamide beads. Biochimica et Biophysica Acta (BBA) - Biomembranes 1980, 602 (1) , 24-31. DOI: 10.1016/0005-2736(80)90286-2.
The Texas strain of B. bovis and the Argentina strain of B. bigemina were continuously cultured with bovine erythrocytes (RBC) by using a mi-croaerophilous stationary-phase culturing system (1, 15, 20). The cultured par-asite was harvested when the parasitemia reached 8 to 10%. Expression and puri铿乧ation of recombinant proteins and production
