SizeandShapeofProteinMolecules2
The sedimentation coefficient of a protein is a measure of how fast it moves through the gradient. Increasing the mass of the protein will increase its sedimentation, while increasing its size or asymmetry will decrease its sedimentation. The relationship of S to size and shape of the protein is given by the Svedberg formula:(4.1)M is the mass of the protein molecule in Dalton; N o is Av......阅读全文
Radioiodination－of－protein
Radioiodination (by Jun Takagi,6/16/2000)Purpose and backgroundsPrinciple of radioiodinationAddition of oxidizing reagents (such as chloramine-T or pe
Protein－Crystallization
Background:Proteins, like many molecules, can be prompted to form crystals when placed in the appropriate conditions. In order to crystallize a protei
Small－Leucinerich－Proteoglycan－(SLRP)－molecules
The small leucine-rich proteoglycans (SLRPs) are a family of proteins that are present in extracellular matrix and that share in common multiple repea
Cells－and－Molecules－involved－in－local－acute－inflammatory－response
Inflammation has several distinct components, including the localized response at the site of tissue injury or infection. Tissue injury stimulates the
The－Determination－of－Proteinprotein－Interactions－by－the－Matingbased－...
Dynamic and reversible protein–protein interactions have a pivotal function in all living cells. For instance, protein–protein interactions are in
Sodium－Azide－removal－from－antibody－solutions
实验概要Sodium azide is a preservative used for inhibiting the growth of contaminants such as bacterial or fungus in antibody solutions. However, its
Nature－Materials：新方法使纳米颗粒成功进入细胞
当将条纹状的不同配合基以彼此相间的方式覆盖在纳米颗粒表面时，这种纳米颗粒就可以直接穿入细胞而不会在细胞上留下洞穴，从而不会引起细胞的死亡，新成果日前发表在在线出版的《自然—材料学》(Nature Materials)期刊上。在未来的治疗中，可以用这种方法将生物活性的分子送入细胞中。 细胞膜具有高度
第八届全国微全分析系统学术会议微纳米生物分析专场
2013年5月16日-19日，由中国化学会主办、厦门大学承办、复旦大学、浙江大学协办的为期四天的第八届全国微全分析系统学术会议、第三届全国微纳尺度生物分离分析学术会议暨第五届国际微化学与微系统学术会议在美丽的海滨城市厦门隆重召开。以下是
Eukaryotic－protein－translation
The scanning translation initiation model suggests that 40S ribosomal subunit preloaded with factors bind to the 5’ end of the mRNA near the cap. The
LOWRY－PROTEIN－ASSAY
The Lowry procedure is one of the most venerable and widely-used protein assays, being first described in 1951 [Lowry et al., J. Biol. Chem. 193: 265-
Protein－Kinase－A－at－the－Centrosome
Protein kinase A regulatory subunit RIIalpha (PKA-RIIa) is tightly bound to centrosomal structures during interphase through interaction with the A-ki
Bradford－protein－assay
Bradford protein assayConsiderations for useThe Bradford assay is very fast and uses about the same amount of protein as the Lowry assay. It is fairly
BIURET－PROTEIN－ASSAY
BIURET PROTEIN ASSAYMATERIALSBiuret ReagentBovine serum albumin (BSA)Spectrophotometer and tubesPROCEDUREPrepare standard dilutions of BSA containing
Bradford－–－Protein－Determination
Bradford – Protein DeterminationIntroductionA rapid and accurate method for the estimation of protein concentration. The technique is simpler, faster
Protein－A－Purification－of－Antibody
1. Reagents(1) Affi-gel Protein-A Agarose (BioRad #153-6153)(2) MAPS II Binding Buffer (BioRad # 153-6161)(3) 0.314 g/ml diH2O(4) MAPS II Elution Buff
Protein－Staining－Procedures
This method was successful in our lab using prostate tissue and for our specific objectives. Investigators must be aware that they will need to tailor
Protein－Assay－(Spectrophotometer)
Protein Assay (Spectrophotometer)Use BSA (bovine serum albumin) 1mg/ml stock solution (1ml Eppendorf tubes) for standard curve.Place 0, 2, 5, 10, 15,
Lowry－–－Protein－Determination
Lowry – Protein Determination(From Protein Protocols on CD-ROM Humana Press, 1998 - Section 1-2 The Lowry Method for Protein Quantitation Jakob H. Wat
Acetone－precipitation－of－protein
This procedure is suitable for recovering proteins from most aqueous solvents and from SDS containing buffers. It is not recommended for proteins diss
Preparing－a－Selenomethionyl－Protein
PurposeThe protocol describes how to prepare selenomethionyl (Se-Met) protein using a regular E.coli strain. Selenium can be used for phase determinat
Protein－arginine－methylation
Typical modification sites: RGG box or RXR sequence motifs R-arginine, G-glycine,X-any aminoacid.Enzymes catalysing protein arginine methylation: PRMT
Protein－purification;－actin
Protein purification; actin Overview ACTINThe most abundant muscle and non-muscle cytoskeletal protein. MW 42 kDa, 374/375 amino acids; various
反向微柱的准备Preparation－of－ReversedPhase－Microcolumns
INTRODUCTIONOne versatile strategy for sample cleanup prior to MALDI-MS analysis uses microscale columns designed for direct sample elution onto the M
An－Introduction－to－Biocomputing
An Introduction to BiocomputingVersion 2.01October 1996David Steffen, Ph.D.President, Biomedical Computing, Inc.6626 WestchesterHouston, Texas 77005US
Basic－Protein－Chemistry－Techniques
Coomassie Blue Stain: (for gels) 1) Combine 225 ml Methanol with 225 ml ddH2O. 2) Add 0.5 grams of Coomassie Blue. 3) Just before use, add 50 ml acet
Biorad－Protein－Assay:－Bradford
Biorad Protein Assay: BradfordStandards: 1 mg/ml BSA stock- dilute 1:10 to get 0.1 mg/ml BSAAdd To get H-2O20 µl 2 µg/ml 780 µl40 µl 4 µg/ml 760 µl60
Cyanogen－Bromide－digestion－of－protein
1. Proteins are TCA precipitated and washed with acetone, then dried.2. The CNBr should be brought to room temperature in the hood and used ONLY in th
Coupling－Antibodies－to－Protein－A－or－G
1. use 2 mg of antibody per ml wet beads (use appropriate antibody/protein A or G combination).2. mix antibodies with beads and bind at room temperatu
Protein－G－Purification－of－Antibodies
1. Reagent and Materials(1) Hi-Trap Protein G Column (Pharmacia Biotech #17-0404-01)(2) 20 mM Sodium Phosphate Buffer, pH 7.01.084 g NaH2PO4, anhydrou
Angiotensin－Protein－Kinase－Assay
James Hardwick's angiotensin assay protocolThis specific procedure was developed to assay the activity of the Lck kinase expressed from a retrovir