Biochemisches Institut

Initial Xtal Screens

When screening for crystallization conditions, it is important to minimize the chemical redundancy between the screens you choose. It is even more critical when working with membrane proteins where it is desirable to screen the most crystallization space with the limited sample you have.

Janet Newman has created a very useful tool to compare the similarity between commercially available crystallization screens. Access this tool by using the guest account from the C6 server: Comparison of Crystallization Conditions @ C3

The C6 Web Tool: A Resource for the Rational Selection of Crystallization Conditions
Janet Newman, Vincent J. Fazio, Brian Lawson and Thomas S.Peat
Cryst. Growth Des., 2010, 10 (6), pp 2785–2792

Eddie Pryor from Anatrace analyzed commercially available membrane protein crystallization screens using the C6 server and made the raw data available through the CCP4 bulletin board: Protein_Screen_Comparison

screen #screen description
GS001PEG4000, 0.2M Li2SO4, PEG8000_5-30%, pH-gradient:3~10
GS002Replaced by GS085
GS003PEG4000, 0.2M Li2SO4, PEG6000_5-30%, pH-gradient:3~10
GS005PEG4000/PEG8000 5-30%, pH-gradient:3~10
GS006PEG4000/PEG6000 5-30%, pH-gradient:3~10
GS007Clear Strategy screen I &II, pH 5.5 & 6.5; (MDL:MD1-14 & MD1-15)
GS008Clear Strategy screen I ⅈ pH 7.5 & 8.5; (MDL:MD1-14 & MD1-15)
GS013PEG10,000, 5-30%; PEG5000MME 5-30%;pH Gradient 3.0~10.0
GS016Crystallization Basic Kit for Membrane Proteins (Sigma-Fluka #73513) and Crystallization Low Ionic Kit for Proteins,(Sigma-Fluka #86684)
GS017Crystallization Basic Kit for Membrane Proteins, (Sigma-Fluka #73513) and Crystallization Cryo Kit for Proteins, (Sigma-Fluka #75403)
GS018Crystallization Cryo for Proteins, (Sigma-Fluka #75403) and Crystallization Low Ionic Kit for Proteins, (Sigma-Fluka #86684)
GS020PEG400 15-45%//PEG4000 5-30%, pH gradient 4.5 ~ 9.4,NaCl 1.0M + 150mM (Membrane Protein - MacKinnon Screen)
GS021PEG400 15-45%//PEG4000 5-30%, pH gradient 4.5 ~ 9.4, (NH4)2SO4 200 mM; Mg-Acetate 50 mM, (Membrane Protein - MacKinnon Screen)
GS022PEG400 15-45%//PEG4000 5-30%, pH gradient 4.5 ~ 9.4,K-phosphate // Li-Na-sulfate (Membrane Protein - MacKinnon Screen)
GS023PEG400 15-45%//PEG4000 5-30%, pH gradient 4.5 ~ 9.4,KCl 500mM // CaCl2 200mM (Membrane Protein - MacKinnon Screen)
GS024PEG400 15-45%//PEG4000 5-30%, pH gradient 4.5 ~ 9.4, Ammonium-Formate; Zinc Acetate, Potassium Iodide (Membrane Protein - MacKinnon Screen)
GS025PEG400 15-45%//PEG4000 5-30%, pH gradient 4.5 ~ 9.4,No Addition; Potassium-Sodium-Tartrate (Membrane Protein - MacKinnon Screen)
GS027JCSG-plus™ MD1-37
GS028PACT premier™ MD1-29, PACT Buffer Protocols
GS029The MbClass II (Qiagen: Art# 130712)
GS031Structure Screen I & II, (MDL: MD1-01 & MD1-02)
GS032MemStart & MemSys, (MDL: MD1-21 & MD1-25)
GS033Prescreen for estimating the optimal protein concentration for crystallization
GS034Ankyrin Screen
GS035Na-Malonate Gradient ; pH 4.0 ~ 8.0
GS036The Anions Suite (Qiagen:Art#130707)
GS037The Cation Suite (Qiagen:Art#130708)
GS042Additiv screen, Silver Bullet (Hampton Research:HR2-096), customer provide buffer solution
GS044Additive screen: JBScreen Plus (Jenabioscience:CS-507L) customer provide buffer solution~10% more concentrated
GS045Mem Gold (MDL: MD1-41)
GS046Peg/Ion screen (Hampton Research: HR2-126 & HR2-098)
GS047additiv screen, Silver Bullet BIO, (Hampton Research:HR2-088)
GS048Crystal Screen & Crystal Screen 2: (Hampton research:HR2-110 & HR2-112)
GS055MIDAS, (MDL:MD1-106), Crystallization conditions with alternative polymeric precipitant, MDL Datasheet
GS056HELIX, (MDL:MD1-68), Crystallization conditions for nucleic acid fragments, double stranded DNA, RNA and ribozymes, MDL Datasheet
GS066PEG400 10-45%, pH gradient 4.5 ~ 9.4,NaCl 1.0M + 150mM (Membrane Protein - MacKinnon Screen)
GS067PEG400 10-45%, pH gradient 4.5 ~ 9.4, (NH4)2SO4 200 mM; Mg-Acetate 50 mM, (Membrane Protein - MacKinnon Screen)
GS068PEG400 10-45%, pH gradient 4.5 ~ 9.4,K-phosphate // Li-Na-sulfate (Membrane Protein - MacKinnon Screen)
GS069PEG400 10-45%, pH gradient 4.5 ~ 9.4,KCl 500mM // CaCl2 200mM (Membrane Protein - MacKinnon Screen)
GS070PEG400 10-45%, pH gradient 4.5 ~ 9.4, Ammonium-Formate; Zinc Acetate, Potassium Iodide (Membrane Protein - MacKinnon Screen)
GS071PEG400 10-45%, pH gradient 4.5 ~ 9.4,No Addition; Potassium-Sodium-Tartrate (Membrane Protein - MacKinnon Screen)
GS072MemMeso™- optimized screen for LCP crystallization, Molecular Dimensions MD1-85
GS073Index HT; Hampton Research HR2-144
GS074SG1, Molecular Dimensions MD1-88 , set of conditions that occur with highest, non redundant frequency amongst all PDB deposit. A drunken search in crystallization space, Vincent J. Fazio,a Thomas S. Peata and Janet Newman
GS075Morpheus, Molecular Dimensions, MD1-46; Datasheet-GS075
GS076 Pi-PEG, Jena Bioscience, CS-128
GS078 Additiv Screen; Hampton Research, HR2-138
GS079Gras 1;Hampton Research; HR2-451; different short PEG in low concentration with different salt, pH: 4-9
GS080 Gras 3; Hampton Research, HR2-453; different short PEG in low concentration with different salt, pH: 4-9
GS081 Gras 5; Hampton Research, HR2-455; different short PEG in low concentration with different salt, pH: 4-9
GS082 JBScreen Kinase HTS, Jena Bioscience; CS-204L
GS083 BCS Screen, Molecular Dimensions; MD1-104
GS084 Crystal Screen 1+2 Cryo, Hampton Research; HR2-122 + HR2-121
GS085(NH4)2SO4 0.5-3.0M, pH-gradient:3~10
GS086The Small Molecule Anion screen is a crystallisation screen for organic salts, active pharmaceutical ingredients, coordination complexes and peptides.
GS087~90The 4-Corner Screen Series - GS087-90
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