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Hampton PEGRx 聚乙二醇结晶试剂盒

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Hampton PEGRx
PEGRx 1 • PEGRx 2 • PEGRx HT

Applications   主要是调节样本的PH值
  Primary and secondary, polymer and pH based crystallization screen for biological macromolecules
PEGRx is a primary and secondary, polymer and pH based crystallization screen developed at Hampton Research. It is designed to evaluate polymer based crystallization reagents and pH in low (PEGRx 1) to medium ionic strength (PEGRx 2). It is also designed for use as a secondary or optimization screen to follow the Hampton Research Index screen when polymer based reagents produce hits and interesting solubility leads.PEGRx 1 is a crystallization reagent kit designed to evaluate an array of polymers of varying molecular weight in a low ionic strength environment versus a wide range of pH. Polymer reagents include Polyethylene glycols, Polyethylene glycol monomethyl ethers, and Jeffamines®. The molecular weight range between 200 and 20,000 is evaluated in a low ionic strength formulation. Ten different buffers are used to span the range of pH between 3.5 and 9. The primary screen variables are polymer type, polymer molecular weight, pH and low ionic strength.
PEGRx 2 is a crystallization reagent kit designed to evaluate an array of polymers of varying molecular weight in a medium ionic strength environment in the presence of additives, salts, volatile organics and polyols versus a wide range of pH. Polymer reagents include Polyethylene glycols and Polyethylene glycol monomethyl ethers. The polymer molecular weight range between 200 and 20,000 is evaluated in a medium ionic strength formulation. Ten different buffers are used to span the range of pH between 3.5 and 9. The primary screen variables are polymer type, polymer molecular weight, pH and secondary reagents which include additives, salts, volatile organics and polyols.上海金畔生物作为Hampton蛋白结晶产品的代理商，竭诚为您服务，欢迎新老客户咨询。PEGRx 1 contains 48 unique reagents, 10 ml each.
PEGRx 2 contains 48 unique reagents, 10 ml each
PEGRx HT contains the 96 PEGRx 1 and PEGRx 2 reagent in a single Deep Well block format.
Ready-to-use reagents are sterile filtered and formulated with ultra-pure Type 1 water, using the highest purity salts, polymers, organics and buffers. Individual reagents are available through the Hampton Research Custom Shop.
PEGRx 1 • PEGRx 2 • PEGRx HT
PEGRx
PEGRx 1 • PEGRx 2 • PEGRx HT
DesR crystals grown using Hampton Research PEGRx, Jin Ho Moon, Korea University.
CAT NO NAME DESCRIPTION
HR2-082 PEGRx 1 10 ml, tube format
HR2-084 PEGRx 2 10 ml, tube format
HR2-086 PEGRx HT 1 ml, Deep Well block format

Hampton蛋白结晶小瓶和结晶柱底座CrystalCap™

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Hampton蛋白结晶小瓶和结晶柱底座CrystalCap™

Applications

Cryocrystallography  低温结晶学
Features

SSRL style sample mount for cryocrystallography
CrystalCap attaches magnetically to CrystalCap Vial and Magnetic Goniometer Base
Conical shape with ledge compatible with SSRL style grippers, auto mounters and sample handlers

Description
The CrystalCap is a magnetic sample mount (also known as a cap, pin or goniometer base) designed for cryocrystallography systems that accept SSRL style sample mounts. The CrystalCap attaches to a magnetic CrystalCap Vial and Magnetic Goniometer Base. The tip of the CrystalCap accepts a Mounted CryoLoop™ or MicroTube™ fitted with a CryoLoop™.
The CrystalCap Vial is a 1.8 ml cryo vial featuring two small vents. A ring magnet is molded into the open end of the vial so that when the cap is positioned in the vial, the ring magnet holds the cap on the vial during cryogenic storage.The HR4-904 CrystalCap Vial does not have a magnet on the bottom of the vial.
The conical shape with ledge is compatible with SSRL style grippers, auto mounters and sample handlers.
Compatible with the following Synchrotron Radiation Beamlines
North & South America
• The Advanced Light Source, Berkeley, California ALS 4.2.2, ALS 11.3.1, ALS 12.2.2, ALS 12.3.2
• The Advanced Photon Source, Argonne, Illinois APS 14-BM-C BioCARS, APS 14-ID-B BioCARS
• Cornell High Energy, Synchrotron Source, Ithaca, New York CHESS A1, CHESS F1
• Canadian Light Source, Saskatchewan, Canada, CLS 08ID-1, CLS 08B1-1
• National Synchrotron Light Source, Upton, New York NSLS X4C
• Stanford Synchrotron Radiation Laboratory, Menlo Park, California SSRL BL7-1, SSRL BL9-1, SSRL BL9-2, SSRL BL11-1, SSRL BL12-2, SSRL BL14-1
Asia & Australia
• Shanghai Synchrotron Radiation Facility, Shanghai, China SSRF BL17U1
• National Synchrotron Radiation Research Center, Taiwan NSRRC BL13B1, NSRRC BL13C1
• Pohang Accelerator Laboratory, Pohang, South Korea PAL 2D, PAL 5C, PAL 7A
• Photon Factory, Tsukuba, Japan PF BL-5A, PF BL-17A, PF AR-NW12A
• Super Photon ring-8 GeV, Japan SPRING-8 BL12B2, SPRING-8 BL24XU, SPRING-8 BL26B1, SPRING-8 BL26B2, SPRING-8 BL32B2, SPRING-8 BL32XU, SPRING-8 BL38B1, SPRING-8 BL41XU, SPRING-8 BL44B2, SPRING-8 BL44XU
CrystalCap™
CrystalCap
CrystalCap™
CrystalCap & Vial
CrystalCap™
CrystalCap
Hampton蛋白结晶小瓶和结晶柱底座 CrystalCap™

CAT NO NAME DESCRIPTION
HR4-733 CrystalCap with Vial – 60 pack
HR4-902 CrystalCap without Vial – 60 pack
HR4-904 CrystalCap Vial Vial only – 30 pack

Hampton Natrix • Natrix 2 • Natrix HT

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Hampton Natrix • Natrix 2 • Natrix HT

Applications
  Primary biased sparse matrix crystallization screen for nucleic acids & protein/nucleic acid complexes  主要用于核酸和蛋白质/核酸复合物的删选
Features

Nucleic acid sparse matrix screen
Sparse matrix formulation efficiently samples salts, polyols, polymers, organics, additives & pH
pH range 5.6 – 8.5
Tube or Deep Well block format
 Description
Natrix, Natrix 2 and Natrix HT are based upon published reagent formulations for the crystallization of nucleic acids and protein-nucleic acid complexes. A variety of hammerhead ribozymes and other ribozymes, RNAs, DNAs, RNA-drug complexes, and RNA-protein complexes have been crystallized using the Natrix protocols.By using sparse matrix sampling technology, The Natrix kits allow one to quickly test wide ranges of pH, salts, and precipitants using a very small sample of nucleic acid.
Natrix screens are unique in that rather than relying solely on the traditional nucleic acid precipitant MPD, Natrix screens also utilize Polyethylene glycols (PEGs) in a variety of molecular weights (200, 400, 4,000, 8,000) as well as 2-Propanol, Polyethylene glycol monomethyl ether (PEG MME), and 1,6-Hexanediol. Many of the polymeric and low molecular weight organic precipitants are combined with various monovalent salts as precipitating agents. This combination of salts and low molecular weight organics and polyalcohols, as well as the utilization of varying chain length PEGs, has proven to be a successful combination for producing nucleic acid and protein-nucleic acid complex crystals.
Natrix contains 48 unique reagents, 10 ml each and is based on the sparse matrix formulation first described by William Scott in 1995.
Natrix 2, an extension of Natrix, contains 48 unique reagents, 10 ml each. Natrix 2 is a biased sparse matrix screen based on extracting patterns from crystallization data as well as reagent formulations first described by Berger et al in 1996.
Natrix HT contains 1 ml of each reagent from Natrix and Natrix 2 in a single Deep Well block format.
Ready-to-use reagents are sterile filtered and formulated with ultra-pure Type 1 water, using the highest purity salts, polymers, organics and buffers. Individual reagents are available through the Hampton Research Custom Shop.
Natrix • Natrix 2 • Natrix HT
Natrix • Natrix 2 • Natrix HT
Crystals of a frameshift promoting RNA pseudoknot from the coronavirus IBV, grown using the Hampton Research Natrix screen. Simon Pennell, MRC National Institute for Medical Research, United Kingdom.
View Full Size
Natrix • Natrix 2 • Natrix HT
Crystals of Ec Rnk, a new RNA polymerase interacting protein obtained in Hampton Research Natrix Screen. Valerie Lamour, IGBMC, Illkirch, France.

 

CAT NO NAME DESCRIPTION
HR2-116 Natrix 10 ml, tube format
HR2-117 Natrix 2 10 ml, tube format
HR2-131 Natrix HT 1 ml, Deep Well block format

Hampton 银弹 Silver Bullets

发表于由

Hampton 银弹 Silver Bullets

Applications

Additive screen for the optimization of protein crystals
For use with soluble proteins and membrane proteins
Additive screen to discover different crystal forms
Secondary or orthogonal crystallization screen when traditional screens are not successful
Additive screen for the optimization of protein solubility and stability
Features

Developed at Hampton Research
Screens a portfolio of small molecules and excipients for their ability to establish stabilizing, intermolecular, hydrogen bonding, hydrophobic and electrostatic interactions which could promote lattice formation and crystallization

Small organic acids & organic salts
Biologically active small molecules
Amino acids & peptides
Macromolecular digests
Co-factors & ligands
Biochemical pathway intermediates
Nucleotides, pharmacaphores & carbohydrates

Description
Silver Bullets screens a portfolio of small molecules for their ability to establish stabilizing, inter molecular, hydrogen bonding, hydrophobic and electrostatic interactions which could promote stability, lattice formation, and crystallization.1-3
Published results with the Silver Bullets have been very encouraging, with more than twice as many proteins being crystallized overall as were crystallized from controls free of any small molecules.1-3
X-ray diffraction analysis has revealed the small molecule Silver Bullets in the crystal lattice, involved at the centers of hydrogen bonding networks and electrostatic interaction.1-3 Silver Bullets is compatible with hanging, sitting and sandwich drop vapor diffusion, microbatch, free interface, and microdialysis crystallization methods. Silver Bullets can be used with Dynamic Light Scattering (DLS), ThermoFluor, and Size Exclusion Chromatography assays.
Silver Bullets reagent portfolio
•Organic salts and acids
•Biologically active small molecules
•Amino acids and peptides
•Macromolecular digests
The Silver Bullets kit is a library of small molecules that have been shown to promote crystal lattice formation. X-ray diffraction analysis has demonstrated the reagents have the ability to:
•Stabilize the conformation of the protein
•Perturb the interaction of the protein with the solvent
•Participate in forming important lattice contacts
•Build the crystal lattice by forming reversible cross-links between the macromolecules in the crystal
The Silver Bullets kit is composed of 96 solutions in a single Deep Well block (Greiner 786261 block specifications: Total Volume: 0.5 mL Working Volume: 0.03 – 0.7 mL at Room Temperature 0.03 – 0.55 mL at -20ºC, Well Profile: Conical (V), Bottom Well Bottom: Solid, Plate Color: Translucent), HT format.
Each Silver Bullets reagent is a mixture of small molecules or macromolecular digests in 0.02 M HEPES sodium pH 6.8 buffer. Each solution contains between 2 and 20 small molecules.
Silver Bullets reagent volume is 0.5 ml (each well).
ThermoFluor is a registered trademark of Johnson & Johnson.

Hampton  Silver Bullets Bio

Silver Bullets • Silver Bullets Bio
Silver Bullets • Silver Bullets Bio
上海金畔生物作为Hampton蛋白结晶产品的代理商，竭诚为您服务，欢迎新老客户咨询。
Applications 应用

Additive screen for the optimization of protein crystals
For use with soluble proteins and membrane proteins
Additive screen to discover different crystal forms
Secondary or orthogonal crystallization screen when traditional screens are not successful
Additive screen for the optimization of protein solubility and stability

Features

Screens a portfolio of small molecules and excipients for their ability to establish stabilizing, intermolecular, hydrogen bonding, hydrophobic and electrostatic interactions which could promote lattice formation and crystallization

Small organic acids & organic salts
Biologically active small molecules
Amino acids & peptides
Macromolecular digests
Co-factors & ligands
Biochemical pathway intermediates
Nucleotides, pharmacaphores & carbohydrates

 
Developed at Hampton Research
Two sets of 96 reagents, composed of more than 1,090 chemicals, of which more than 400 are uniqu

Please note, the Silver Bullets Bio Screen is temporarily unavailable as a new formulation is in development
 

Hampton 水晶透明密封带Crystal Clear Sealing Tape

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Hampton 水晶透明密封带Crystal Clear Sealing Tape
Crystal Clear Sealing Tape
3 inch, 1.88 inch, 1.88 inch with dispenser, 0.75 inch with dispenser (left to right)
Crystal Clear Sealing Tape
0.75 inch Crystal Clear Sealing Tape
Applications  应用
Sealing tape used to seal sitting drop crystallization experiments
Description
These optically clear tapes are compatible with protein crystallization reagents. The polypropylene Crystal Clear Sealing Tapes use acrylic solvent based adhesives which are compatible with aqueous crystallization reagents.
Catalog number HR3-511 is a 1.88 inch (48 mm) wide, 3 mil tape on a 43.7 yard (40 M) roll with a 1.5 inch core and is supplied with a green dispenser / cutter.Catalog number HR4-511 is a 1.88 inch wide, 3 mil tape on a 60 yard roll with a 3 inch core and no dispenser / cutter.Two strips of the HR3-511 or HR4-511 will seal a Corning, Cryschem, CrystalClear Strip, Greiner, Intelliplate, Linbro, Swissci (MRC), VDX and VDXm plate.Catalog number HR4-506 is a 3 inch wide, 3 mil tape on a 54.86 yard roll with a 3 inch core and no dispenser / cutter.One strip of the HR4-506 will seal a Corning, Cryschem M, CrystalClear Strip, Greiner, Intelliplate, Swissci (MRC) and VDXm plate.Crystal Clear Mini Sealing Tape HR4-508 is a 0.75 inch (19 mm) wide, 3 mil tape on a 650 inch (16.5 M) roll and is supplied with a clear dispenser / cutter. The tape is useful for resealing or patching wells after mounting crystals. The tape is also wide enough to seal a single row of a Cryschem S or Cryschem M plate.See chart for tape and plate compatibility.

Hampton 蛋白结晶试剂–Crystal Screen

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Hampton 蛋白结晶试剂–Crystal Screen
Crystal Screen • Crystal Screen 2 • Crystal Screen HT

Applications
 Primary screen for proteins, soluble peptides, nucleic acids, & water soluble small molecules
 Sparse matrix additive screen
Features
 The original sparse matrix screen
 Sparse matrix formula efficiently samples salts, polymers, organics, & pH
 Proven effective with more than 1,000 biological macromolecules
 Tube or Deep Well block format

Description
The Crystal Screen and Crystal Screen 2 reagent kits are designed to provide a highly effective and rapid screening method for the crystallization of macromolecules. The screens are simple and practical for finding initial crystallization conditions. The initial crystallization conditions for more than 1,000 proteins, peptides, oligonucleotides, and small molecules have been determined using Crystal Screen.
A highly effective approach to overcome the exhaustive search for suitable crystallization conditions is the use of a sparse matrix method of trial conditions that is biased and selected from known crystallization conditions for macromolecules. The formulation utilized in Crystal Screen and Crystal Screen 2 evaluates 96 unique mixtures of pH, salts, polymers and organics, and their ability to promote crystal growth.
Crystal Screen contains 50 unique reagents, 10 ml each and is based on the sparse matrix formulation first described by Jancarik and Kim in 1991.
Crystal Screen 2, an extension of Crystal Screen, contains 48 unique reagents, 10 ml each and is based on the formulation first described by Cudney et al in 1994.
Crystal Screen HT contains 1 ml each of reagents 1-48 from Crystal Screen and all 48 reagents from Crystal Screen 2 in a single Deep Well block format.
Ready-to-use reagents are sterile filtered and formulated with ultra-pure Type 1 water, using the highest purity salts, polymers, organics and buffers. Individual reagents are available through the Hampton Research Custom Shop.
Crystal Screen • Crystal Screen 2 • Crystal Screen HT
Crystal Screen • Crystal Screen 2 • Crystal Screen HT
Crystals of a carbohydrate processing enzyme grown using Hampton Research Crystal Screen. Shirley Roberts, York Structural Biology Laboratory, York, United Kingdom.
Crystal Screen • Crystal Screen 2 • Crystal Screen HT
Crystal of zRFP574 red fluorescent protein grown using Hampton Research Crystal Screen 2. Pletneva et al. Acta Cryst. D62, 527-532 (2006). Nadya, Russian Academy of Science, Moscow, Russia.

CAT NO NAME DESCRIPTION
HR2-110 Crystal Screen 10 ml, tube format
HR2-112 Crystal Screen 2 10 ml, tube format
HR2-130 Crystal Screen HT 1 ml, Deep Well block format

Hampton 蛋白结晶删选试剂– Index HT

发表于由
Hampton 蛋白结晶删选试剂– Index HT
Applications
Primary, diverse reagent system crystallization screen for proteins, complexes, peptides, nucleic acids, & water soluble small molecules
多样结晶试剂系统删选试剂盒，用于蛋白质，复合物，肽，核酸，和水溶性的小分子。
Features
 Developed at Hampton Research
Screens classic, contemporary, & modern crystallization reagents
Samples pH 3 to 9
Compatible with microbatch, vapor diffusion, & liquid diffusion methods
Specially formulated reagent zones:
1 .Traditional salts versus pH
2.Neutralized organic acids
3.High [salt] with low [polymer]
4.High [polymer] with low [salt]
5.Low ionic strength versus pH
6.PEG & Salt versus pH
7.PEG & Salt
 Tube or Deep Well block format

Description
Index is designed as a 96 reagent crystallization screen that combines the strategies of the grid, sparse matrix, and incomplete factorial screening with traditional, contemporary, and new crystallization reagent systems into a highly effective and efficient format.
Index, as the name implies, efficiently samples a series of specially formulated reagent zones to identify which reagent class or classes and pH are effective in producing crystals or limiting sample solubility. Results from Index can be used to design optimization experiments and to identify follow on screens by reagent class. For example, positive results with salt based reagents in Index may be followed up with further screening using SaltRx or Grid Screen Salt HT. Success with polymer based reagents in Index may be followed up with further screening using PEGRx or PEG/Ion.
Index utilizes a broad, yet refined portfolio of crystallization reagent systems. These include the following: (1) traditional salts such as Ammonium sulfate and Sodium chloride versus pH; (2) neutralized organic acids such as Sodium malonate and Tacsimate; (3) High salt concentration mixed with low polymer concentration as well as high polymer concentration mixed with low salt concentration and; (4) Low ionic strength using polymers such as PEG, MPD, Pentaerythritols versus pH. These reagent systems are formulated across a sparse matrix and incomplete factorial of concentration ranges, sampling a pH range of 3 to 9.
Index contains 96 unique reagents, 10 ml each.
Index HT contains 96 unique reagents in a single Deep Well block format.
Ready-to-use reagents are sterile filtered and formulated with ultra-pure Type 1 water, using the highest purity salts, polymers, organics and buffers. Individual reagents are available through the Hampton Research Custom Shop.
Measured pH range of kit is 3 to 9 at 25°C
Average measured pH of kit is 6.8 at 25°C
Median measured pH of kit is 6.9 at 25°C
Index • Index HT
Index • Index HT
Apo Kinase crystal. Initial hit from the Hampton Research Index Screen. Annie Hassell, Glaxo Smithkline.
Index • Index HT
Crystal of a heme-based sensor from Thermoanaerobacter Tengcongensis grown using the Hampton Research Index screen. Patricia Pellicena & John Kuriyan at University of California, Berkeley, USA.

CAT NO NAME DESCRIPTION
HR2-144 Index 10 ml, tube format
HR2-134 Index HT 1 ml, Deep Well block format

Hampton结晶用缓冲盐试剂盒– SaltRx

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Hampton结晶用缓冲盐试剂盒– SaltRx
SaltRx 1 • SaltRx 2 • SaltRx HT

Applications
Primary or secondary, salt and pH matrix crystallization screen for biological macromolecules
Features

Salt versus pH matrix crystallization screen
Samples pH 4 to 9
22 unique salts versus salt concentration and pH
Compatible with microbatch, vapor diffusion, liquid & gel diffusion methods
Tube or Deep Well block format
Preformulated, ready to screen
Developed at Hampton Research
All salts and buffers in screen readily available as Optimize™ reagents for reproducing and optimizing crystals
Individual reagents available through the Hampton Research Custom Shop
 Description
SaltRx was developed by Hampton Research as a primary and secondary, salt and pH based crystallization screen for biological macromolecules. Salt is the only primary crystallization reagent (precipitant) utilized. Based on a design of 96 conditions, the screen evaluates a broad portfolio of crystallization salts of varying concentration and pH. The selection, concentration, and pH of the salts were determined by data mining the BMCD1 and other crystallization databases, crystallization reports in the literature, and internal crystallization trials performed at Hampton Research. Based on this analysis, up to 35% of protein crystallizations involve salt as the primary crystallization reagent. SaltRx can be used as a primary crystallization screen when salt, ionic strength and pH are desired or suspected as appropriate crystallization variables. It is also useful as a secondary screen when salt only reagents/conditions from screens such as Index™, Crystal Screen™, and Grid Screen™ produce crystals and when further screening for additional salt conditions or optimization is desired. Since this screen does not contain volatile organics, it is compatible with microbatch, vapor diffusion, liquid and gel diffusion crystallization methods. SaltRx may also be used for dialysis crystallization in conjunction with Dialysis Buttons™.The original SaltRx kit (HR2-108) contained 96 unique reagents, 10 ml each. This kit has been discontinued and converted into two 48 reagent based kits, SaltRx 1 and SaltRx 2, available separately, which when used together are identical to the original SaltRx.SaltRx 1 contains 48 unique reagents, 10 ml each. SaltRx 1 contains reagents 1-48 of the original SaltRx 96 reagent kit.Salt Rx 2 contains 48 unique reagents, 10 ml each. SaltRx 2 contains reagent 49-96 of the original SaltRx 96 reagent kit.SaltRx HT contains the 96 SaltRx 1 and SaltRx 2 reagents in a single Deep Well block format.Ready-to-use reagents are sterile filtered and formulated with ultra-pure Type 1 water, using the highest purity salts, polymers, organics and buffers. Individual reagents are available through the Hampton Research Custom Shop.
Measured pH range of kit is 4.1 to 9.0 at 25°C
Average measured pH of kit is 6.9 at 25°C
Median measured pH of kit is 7.3 at 25°C
Mode measured pH of kit is 7.4 at 25°C
CAT NO NAME DESCRIPTION
HR2-136 SaltRx HT 1 ml, Deep Well block format
HR2-107 SaltRx 1 10 ml, tube format
HR2-109 SaltRx 2 10 ml, tube format

Hampton Solubility & Stability Screen

发表于由
Hampton Solubility & Stability Screen

Solubility & Stability Screen（溶解度和稳定性的屏幕）
应用：溶解性和稳定性屏幕的设计，以协助识别解决方案的条件，促进蛋白质的溶解性和稳定性，并尽量减少蛋白质沉淀。
Solubility & Stability Screen
Solubility & Stability Screen
Solubility & Stability Screen
Solubility & Stability Screen HR2-072
Applications

A solubility screen, a stability screen, an additive screen for protein assays including ThermoFluor and crystallization
Preformulation screening

 

Compatible with Thermofluor , Differential Scanning Fluorimetry (DSF), and Protein Thermal Shift assays
96 sterile filtered reagents
17 classes of reagents and excipients
Highly concentrated (10x) reagent formulation
Developed at Hampton Research

Features
Methodologies

Thermal shift assay
Dynamic Light Scattering
Use Solubility & Stability Screen along side Slice pH and Solubility & Stability Screen 2 to optimize sample buffer
Description

Solubility & Stability Screen is designed to assist in the identification of solution conditions which promote protein solubility and stability, and minimize protein precipitation. Solubility & Stability Screen is a solubility screen, a stability screen, and may also be used as an additive screen in the presence of a crystallization reagent.
The Hampton Research Solubility and Stability Screen can evaluate protein solubility, stability and crystallization in the presence of 94 different chemical additives sampling 17 different classes of reagents plus two controls.
Protein solubility and stability are universally required in a wide range of applications, including general biochemical studies, the preparation of proteins in pharmaceuticals, structural biology and crystallization.1-11The preparation of a concentrated, soluble and stable protein sample can often be a difficult task as proteins often aggregate, precipitate or denature.
Thermofluor (also known as Differential Scanning Fluorimetry, DSF and Protein Thermal Shift) provides a rapid, convenient and effective means of identifying subsaturating solution conditions that may also correlate with protein heterogeneity and poor crystallization outcomes.12
Protein solubility and stability is affected by many different chemical factors including pH, buffer type, chemical additives and excipients. pH and buffer type are dominant protein solubility and stability variables and can be evaluated and optimized using the Hampton Research Slice pH kit HR2-070. Slice pH evaluates protein solubility, stability and crystallization versus 20 different buffers over the pH range 3.5-9.6. Chemical additives influencing protein solubility and stability can be evaluated using the Solubility & Stability Screen.
It is widely accepted that protein solubility and stability can be increased by the use of chemical additives.5,15Seventeen classes of reagents are sampled by the Solubility & Stability Screen and each of these classes has been reported as important in improving sample solubility and stability.2-11
The Solubility & Stability Screen is a set of 94 high purity reagents formulated in high purity water (NCCLS/ASTM Type 1+) at 25°C and are 0.22 micron sterile filtered. The 94 solubility and stability reagents are formulated at 2 to 10 times their recommended working concentration. The remaining two reagents are water and a negative (TCA) control. A water control demonstrates the effect of diluting sample as well as sample buffer concentration. TCA, the negative control, demonstrates total sample precipitation, loss of sample solubility and loss of sample stability. The effects of the Solubility & Stability reagents can be compared with this negative control to assist in the identification of reagents promoting sample solubility and stability. 500 microliters of each reagent is supplied in a sterile 96 well polypropylene Deep Well block. The Solubility & Stability Screen reagents are compatible with the sitting or hanging drop vapor diffusion, microbatch, free interface diffusion, sandwich drop vapor diffusion, and dialysis crystallization methods utilizing water soluble reagents.

Hampton 24孔坐滴板 Cryschem Plate

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Hampton 24孔坐滴板 Cryschem Plate
Applications
 Sitting drop crystallization
  Heavy atom soaks
  Seeding

Features
Optically clear, concave sitting drop post
Cryschem Plate – Larger footprint and round reagent reservoir
Cryschem M – Microplate footprint with round reagent reservoir
Cryschem S – Microplate footprint with square reagent reservoir
Compatible with Formulatrix Formulator
Smooth, flat top for easy seal
Each plate supplied with a cover
Materials
  Optically clear polystyrene
 Description

The Cryschem Plate is a 24 well sitting drop plate that is sealed with clear sealing tape. The polystyrene plate is supplied with a raised cover so the plate can also be sealed with vacuum grease and plain glass or plastic cover slides (22 mm diameter). The stackable, 24 well plates have distortion-free, flat bottom wells and a concave sitting drop post in the center of the well for concentric equilibration of the drop with the reagent. Each plate is individually sealed. The top of the plate and each of the 24 wells is a single, flat plane for smooth and easy seal application. Well spacing provides for a large seal area between wells to prevent cross contamination and evaporation.
上海金畔生物作为Hampton蛋白结晶产品的代理商，竭诚为您服务，欢迎新老客户咨询。
Cryschem Plate is large plate footprint with circular reagent reservoir. Cryschem plate approximate size: 15.1 cm x 10.6 cm x 2.2 cm. Approximate well size: 1.6 cm x 1.5 cm. Typical fill volume: 500 to 1,000 µl. Well capacity: 1.5 ml. Maximum drop volume on post: 40 µl. Recommended seal: HR3-511 Crystal Clear Sealing Tape (1.88 inch x 43.7 yard roll, with cutter) or HR4-511 Crystal Clear Sealing Tape (1.88 inch x 60 yard roll, without cutter).
Cryschem M Plate is microplate footprint with circular reagent reservoir. Cryschem M microplate approximate size: 128 mm x 86 mm x 14 mm. Approximate circular reservoir size: 15 mm wide x 9 mm deep. Typical reservoir volume: 500 µl. Well capacity: 1.1 ml. Maximum drop volume on post: 30 µl. Recommended seal: HR3-609 Crystal Clear Sealing Film (100 pack), HR4-521 ClearSeal Film (100 pack) or HR4-506 Crystal Clear Sealing Tape (3 inch x 55 yard roll, without cutter). HR4-508 Crystal Clear Sealing Tape (0.75 inch x 650 inch, with cutter) seals a single row at a time.
Cryschem S Plate is microplate footprint with square reagent reservoir. Cryschem S microplate approximate size: 128 mm x 86 mm x 14 mm. Approximate square reservoir size: 15 mm wide x 9 mm deep. Typical reservoir volume: 500 µl. Well capacity: 1.1 ml. Maximum drop volume on post: 30 µl. Recommended seal: HR3-609 Crystal Clear Sealing Film (100 pack), HR4-521 ClearSeal Film (100 pack) or HR4-506 Crystal Clear Sealing Tape (3 inch x 55 yard roll, without cutter). HR4-508 Crystal Clear Sealing Tape (0.75 inch x 650 inch, with cutter) seals a single row at a time.
Cryschem Plate
Cryschem plate

CAT NO NAME DESCRIPTION
HR3-158 Cryschem Plate 24 plate case
HR3-160 Cryschem Plate 100 plate case
HR1-002 Cryschem M Plate (round reagent reservoir) 50 plate case
HR3-308 Cryschem S Plate (square reagent reservoir) 50 plate case

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