1.Screens 晶体删选试剂盒

产品名称 货号 用途备注
Index Kit HR2-144 用于生物大分子结晶
CrystalScreen Kit HR2-110 用于蛋白质,核酸水溶性小分子结晶
Crystal Screen 2 Kit HR2-112
Pegrx 1 HR2-082 用于生物大分子结晶
Pegrx 2 HR2-084 用于生物大分子结晶
Peg/Ion Screen Kit HR2-126 用于生物大分子结晶
Peg/Ion 2 Screen™ HR2-098 用于生物大分子结晶
Saltrx Kit HR2-108 用于生物大分子结晶
Membfac Kit HR2-114 用于膜蛋白和溶解度有限的样品结晶
Crystal Screen Lite HR2-128 用于蛋白质,缩氨酸,核酸的结晶
Natrix Kit HR2-116 用于核酸和蛋白核酸复合物的结晶
Crystal Screen Cyro Kit HR2-122 用于蛋白质,可溶性缩氨酸,核酸和水溶性小分子的初次低温结晶
Nucleic Acid Mini Screen Kit HR2-118 用于核酸片段的结晶
Low Ionic Strength Screen HR2-120 用于完整单抗,单抗片段以及在低离子浓度下溶解度较低的样品结晶
Silver Bullet & Silver Bullet Bio HR2-078 用于生物大分子的初次和二次结晶
Peg/Tacsimate Ph5.8 Crystallization Reagent HR2-090
Peg/Tacsimate Ph 6.8 Crystallization Reagent HR2-092
Peg/Tacsimate Ph 7.8 Crystallization Reagent HR2-094
Additive Screen™ HR2-428 利用样品间和样品溶剂间相互作用来优化晶体生长和改变样品溶解度
产品名称 货号 用途备注
Detergent Screen 1 HR2-410 改善疏水作用引起的非特异性聚集
Detergent Screen 2 HR2-411
Detergent Screen 3 HR2-412
Detergent Screen HR2-408
Heavy Atom Screen Pt HR2-442 Heavy Atoms For Multiple Isomorphous Replacement
Heavy Atom Screen Au HR2-444
Heavy Atom Screen Hg HR2-446
Heavy Atom Screen M1 HR2-448
Heavy Atom Screen M2 HR2-450
I3c Phasing Kit HR3-133

2.Custom Shop Crystallization Reagents 结晶试剂盒中单独的试剂

  1. Optimize™ Reagents晶体生长条件优化试剂

⑴ Optimize™ – Polymers聚合体

⑵ Optimize™- Organics (Volatile) 挥发性有机物

⑶ Optimize™- Organics (Non-Volatile)非挥发性的有机物

⑷ Optimize™- Salts 盐类

⑸ Optimize™- Buffers缓冲液

⑹ Optimize™- Solubilizing Agents (NDSB) 溶解试剂NDSB

⑺ Optimize™ – Reducing Agent还原剂-TCEP氢氯化物

⑻ Optimize™ – Cryoprotectants

⑼ Optimize™ – Oils用于结晶的油类

⑽ Optimize™ – Silica Hydrogel硅胶

⑾ Optimize™ – LM Agarose低熔点琼脂糖
5.Crystallization Plates, Hardware & Accessories结晶耗材
⑴ 24 Well Crystallization Plates 24孔晶体板-分悬滴和坐滴两种
⑵ 48 Well Crystallization Plates 48孔晶体板
⑶ 72 Well Crystallization Plates72孔晶体板
⑷ 96 Well Crystallization Plates 96孔晶体板等

Hampton 膜蛋白结晶试剂 MembFac • Crystal Screen Lite • MembFac HT

Hampton  MembFac • Crystal Screen Lite • MembFac HT


Primary sparse matrix crystallization screen for membrane proteins and samples with limited solubility   膜蛋白和样品溶解度有限样品


  Membrane protein sparse matrix screens

  Sparse matrix formula efficiently samples salts, polymers, organics and pH

  pH range 4.6 – 8.5

  Formulated for use with detergents

   Tube or Deep Well block format

   Crystal Screen Lite features a lower ionic strength than the original Crystal Screen

MembFac is a highly effective sparse matrix screen specifically designed as a preliminary screen for the crystallization of membrane proteins. MembFac is based upon the highly effective biased sparse matrix methodology. The MembFac screen matrix is optimized for the crystallization of membrane proteins.

MembFac contains 48 unique reagent formulations. With this set of 48 conditions, numerous chemicals and chemical combinations are utilized, allowing one to evaluate a large variety of potential crystallization conditions. MembFac covers a broad pH range between 4 and 9.

The Rationale
The basic rationale of MembFac is to perform a sparse matrix screen while changing the detergent dimension because detergents play an important factor in the crystallization of membrane proteins. A MembFac screen is to be completed for each detergent. Detergent screens are available separately.

The Method
The membrane protein of interest is first isolated in the detergent which gives the highest stability and activity. The protein concentration should be approximately 10 to 20 mg/ml and the detergent concentration should be only slightly above the CMC. The sample is then set against MembFac, using all 48 solutions plus the screening detergent(s) of choice. The screening detergent concentration should be approximately one to three times the CMC. Hence, for each detergent screened, one would utilize approximately 1 to 2 mg of sample.

The MembFac protocol was used to crystallize membrane proteins including SQR, fumerate: quinone oxireductase, LHII, and LHCII.

Crystal Screen Lite is a sparse matrix of trial crystallization reagent conditions based upon the Crystal Screen™.3 The primary screen variables are salt, pH, and precipitant (salts, polymers, volatile organics, and non-volatile organics).2Crystal Screen Lite differs from the original Crystal Screen kit in that the primary precipitant reagents are one-half the concentration of that used in the original Crystal Screen formulation. The secondary salts, ions, and buffers remain at the original Crystal Screen concentration. Reducing the primary concentration of the primary precipitant results in a screen which is “more gentle” on the sample and typically produces much less precipitate conditions than the original Crystal Screen.

MembFac contains 48 unique reagents, 10 ml each.

MembFac HT contains 1 ml each of all 48 reagents from MembFac and reagents 1-48 from Crystal Screen Lite 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.

HR2-114 MembFac 10 ml, tube format
HR2-128 Crystal Screen Lite 10 ml, tube format
HR2-137 MembFac HT 1 ml, Deep Well block format

Hampton 48孔坐滴蛋白结晶板 48-Well Crystallization Plate

Hampton 48孔坐滴蛋白结晶板 48-Well Crystallization Plate

Sitting drop crystallization

One drop per reservoir
SBS format
48 well plate
9 mm standard distance between wells
Drop volume: Up to 10 µl
Reservoir volume: 50 to 200 µl
Micro-numbering alongside drop volumes
Rigid plate structure
Wide partition walls between wells improve sealing
Developed in conjunction with the MRC Laboratory of Molecular Biology in Cambridge, United Kingdom
UV compatible (UVP)
MRC Maxi 48-Well Crystallization Plate for Automated Optimization

The MRC Maxi optimization plate is a breakthrough for macromolecular crystallization presented in a 48 well format. Offering easy to automate crystallization optimization with large sitting-drops, the new MRC Maxi Crystallization plate is the perfect solution. Manufactured by Swissci AG, the plate offers an SBS format while providing 48 wells. MRC Maxi is intended for large drops and is compatible both with standard robotic systems as well as manual pipetting.

The plate was developed at the MRC Laboratory of Molecular Biology (Cambridge, UK) in collaboration with Jan Löwe and Fabrice Gorrec. It is a result of many years of experience in successful robotic high-throughput crystallization and complements the original MRC crystallization plate, which is intended for smaller drop volumes and higher throughput during screening.

Drop volumes of up to 10 µl are possible. The 9 mm standard distance between wells is preserved, enabling the use of multi-channel manual pipettes and robotic liquid handlers, making MRC Maxi one of the most automation-friendly optimization plates on the market.

MRC Maxi is covered by global intellectual property and design registration as are the Swissci AG MRC 2 lens 96 well plates. Several breakthrough features of the original MRC plate have been maintained. Wells are labeled individually. Drops are raised for easy access during crystal retrieval. MRC Maxi uses the same proprietary polymer specially selected for the purpose of UV light visualization and the material used keeps through-plastic evaporation to a minimum. Well shapes are spherical but shallow.

The MRC Maxi Crystallization plate offers unique properties that make it the ideal choice for microliter-sized optimization experiments and is made from UV compatible UVP.

The advantages of the MRC Maxi Crystallization plate – in brief

Easy Crystal Retrieval
Raised wide wells make the crystal mounting especially easy.

Easy Viewing
The wells are wide conical.
Each well has a micro lens for perfect illumination.
Micro numbering readable under the microscope for each well.
The optically superior polymer (UVP) is UV transmissible.

Better Sealing
Wide partition walls between the wells give plenty of area for good sealing with tape.

Very Rigid, Automation-Friendly Plate Design
The UVP polymer reduces through-plastic evaporation to a minimum.

SBS Standard
The plates are designed to the SBS standard and are compatible with all common holders.
9 mm distance from well-to-well within columns, 18 mm distance within rows.

Unique Polymer (UVP)
Ultra-low sample binding.
No static charging.

Recommended Volumes
Volumes validated for MRC Maxi are up to 10 µl of sample drop and 200 µl of the crystallization reagent.

HR3-179 MRC Maxi 48-Well Crystallization Plate 10 plate case
HR3-180 MRC Maxi 48-Well Crystallization Plate 40 plate case

Hampton Polyethylene glycol 4,000

Hampton Polyethylene glycol 4,000

Crystallization grade Polyethylene glycol for formulating screens or for optimizatio
Sterile filtered solution
Formulated in Type 1+ ultrapure water: 18.2 megaohm-cm resistivity at 25°C, < 5 ppb Total Organic Carbon, bacteria free (<1 Bacteria (CFU/ml)), pyrogen free (<0.03 Endotoxin (EU/ml)), RNase-free (< 0.01 ng/mL) and DNase-free (< 4 pg/µL)

Polyethylene glycol 4,000
Synonym: PEG 4,000
Mr 3,500-4,500
CAS Number [25322-68-3]
EC Number 500-038-2
Merck 14,7568
RTECS TQ3500000
MDL Number MFCD00081839
PubChem Substance ID 24890217
Melting point (Starting Material) 58.0-61.0°C
Aldehyde None detected
Peroxide None detected

HR2-529 Measured pH range: 6.9 – 9.5 at 25°C
HR2-529 Measured Conductivity Range: 35.3 – 46.9 µS/cm at 25°C
HR2-529 Measured Refractive Index Range: 1.40172 – 1.40279 at 20°C

HR2-605 Polyethylene glycol 4,000 Flake – 500 g
HR2-529 Polyethylene glycol 4,000 50% w/v solution – 200 ml