Central to the study of chromosome biology are techniques that permit the purification of small chromatin sections for analysis of associated DNA and proteins, including histones. Chromatin purification protocols vary greatly in the extent of chemical cross-linking used to prevent protein dissociation/re-association during isolation. Particularly for genome-wide analyses, chromatin purification...

Structural Genomics Consortium1–3, Architecture et Fonction des Macromolécules Biologiques4, Berkeley Structural Genomics Center5, China Structural Genomics Consortium6,7, Integrated Center for Structure and Function Innovation8, Israel Structural Proteomics Center9, Joint Center for Structural Genomics10,11, Midwest Center for Structural Genomics12, New York Structural GenomiX Research Center ...

High-copy plasmids are useful for producing large quantities of plasmid DNA, but are generally inadequate for tightly regulating gene expression. Attempts to suppress expression of genes on high-copy plasmids often results in residual or ‘‘leaky” production of protein. For stringent regulation of gene expression, it is often necessary to excise the gene of interest and subclone it into a low-co...

Structural Genomics Consortium1–3, Architecture et Fonction des Macromolécules Biologiques4, Berkeley Structural Genomics Center5, China Structural Genomics Consortium6,7, Integrated Center for Structure and Function Innovation8, Israel Structural Proteomics Center9, Joint Center for Structural Genomics10,11, Midwest Center for Structural Genomics12, New York Structural GenomiX Research Center ...

Sue-Hong Wang,*,† Tien-Shuh Yang,† Shiang-Ming Lin,† Ming-Shiun Tsai,‡ Shinn-Chih Wu,† and Simon J.T. Mao§,1 *Jen-Te Junior College of Medicine Nursing and Management, Miaoli, Taiwan; †Department of Applied Biology, Pig Research Institute Taiwan, Chunan, Taiwan; ‡Insititute of Molecular Biology, Academic Sinica, Taipei, Taiwan; and §Department of Biological Science and Technology, Research Inst...

OBJECTIVE To evaluate the effect of a novel approach for purification and renaturation of recombinant human interleukin-2-pseudomonas exotoxin (IL2-PE66(4Glu)) fusion protein. METHODS A novel purification method established in our laboratory was adopted for the purification of the inclusion body, and after renaturation, recombinant human IL2-PE66(4Glu) fusion protein was purified by DEAE-Seph...

BACKGROUND In the postgenomic era, high throughput protein expression and protein microarray technologies have progressed markedly permitting screening of therapeutic reagents and discovery of novel protein functions. Hexa-histidine is one of the most commonly used fusion tags for protein expression due to its small size and convenient purification via immobilized metal ion affinity chromatogra...

the aim of the present work was to purify cysteine protease inhibitors from rapeseed (brassica napus l.), with potential activity on digestive protease of colorado potato beetle (cpb), leptinotarsa decemlineata (say). ammonium sulfate precipitated proteinaceous fractions; 30, 50, 70, and 100% showed 39.07, 57.03, 51.47, and 22.44% inhibition on the fourth instar larval gut general protease acti...