C07K1/306

High-throughput crystallographic screening device and method for crystalizing membrane proteins using a sub physiological resting membrane potential across a lipid matrix of variable composition

The invention is a high-throughput voltage screening crystallographic device and methodology that uses multiple micro wells and electric circuits capable of assaying different crystallization condition for the same or different proteins of interest at the same of different voltages under a humidity and temperature controlled environment. The protein is solubilized in a lipid matrix similar to the lipid composition of the protein in the native environment to ensure stability of the protein during crystallization. The invention provides a system and method where the protein is transferred to a lipid matrix that holds a resting membrane potential, which reduces the degree of conformational freedom of the protein. The invention overcomes the majority of the difficulties associated with vapor diffusion techniques and essentially reconstitutes the protein in its native lipid environment under “cuasi” physiological conditions.

HIGH-THROUGHPUT CRYSTALLOGRAPHIC SCREENING DEVICE AND METHOD FOR CRYSTALIZING MEMBRANE PROTEINS USING A SUB PHYSIOLOGICAL RESTING MEMBRANE POTENTIAL ACROSS A LIPID MATRIX OF VARIABLE COMPOSITION

The invention is a high-throughput voltage screening crystallographic device and methodology that uses multiple micro wells and electric circuits capable of assaying different crystallization condition for the same or different proteins of interest at the same of different voltages under a humidity and temperature controlled environment. The protein is solubilized in a lipid matrix similar to the lipid composition of the protein in the native environment to ensure stability of the protein during crystallization. The invention provides a system and method where the protein is transferred to a lipid matrix that holds a resting membrane potential, which reduces the degree of conformational freedom of the protein. The invention overcomes the majority of the difficulties associated with vapor diffusion techniques and essentially reconstitutes the protein in its native lipid environment under “cuasi” physiological conditions.

Method for fabricating two-dimensional protein crystals

Polypeptide assemblies and building blocks and methods for making them are provided.

Norbornene-based amphipathic compound and utilization thereof

Provided are a newly developed norbornene-based amphiphilic compound, a method for preparing the same, and a method for extracting, solubilizing, stabilizing, crystallizing or analyzing a membrane protein using the same. In addition, the compound may effectively extract membrane proteins having various structures and characteristics, compared to a conventional compound, from cell membranes, and may be stably stored in an aqueous solution for a long period of time, and therefore may be used in their functional analysis and structural analysis. The structural and functional analyses of membrane proteins are the most noticeable field in biology and chemistry today due to a close relationship to the development of new drugs.

PREPARATIVE CRYSTALLIZATION OF RECOMBINANT HUMAN INSULIN

The present invention discloses a method for crystallizing recombinant Human Insulin at lab and manufacturing scale in the presence of zinc chloride and sodium chloride mixture, higher concentration of organic solvent (IPA—19 to 25 million) and adjusting the pH to 5.0 at a faster rate (≤5 minutes). The method further comprises adopting procedures wherein the settling time is reduced and the holding temperature is altered in order to facilitate consistent protein crystal formation between 15 μm-30 μm and to increase the robustness of the process.

Protein Crystal Engineering Through DNA Hybridization Interactions

The present disclosure provides compositions comprising protein crystals and methods for programmable biomaterial synthesis. The methods of the disclosure provide the ability to organize proteins within protein crystals with control over protein orientation.

SPECIFICALLY-SHAPED CRYSTAL OF COMPOUND AND METHOD FOR PRODUCING SAME

The present invention provides a method for obtaining a specifically-shaped crystal (specifically, spherocrystal) of a compound with good reproducibility. This method for producing a specifically-shaped crystal (specifically spherocrystal) of a compound comprises: (1) a step for preparing a supersaturated solution of a compound having a degree of supersaturation equal to or higher than a critical degree of supersaturation; and (2) a step for precipitating a specifically-shaped crystal (specifically spherocrystal) of a compound from the supersaturated solution.

CRYSTALLINE FORM OF CYCLOSPORIN A, METHODS OF PREPARATION, AND METHODS FOR USE THEREOF

The present invention relates generally to crystalline forms of cyclosporin A and particularly to a newly identified form of cyclosporin A. The invention further relates to methods for its preparation and to methods for treating certain ocular disorders.

FLEXIBLE DRY SPRINKLER HAVING A DIFFERENTIAL PRESSURE CONTROLLER
20210290999 · 2021-09-23 ·

A dry sprinkler includes a flexible tube section that maintains a pressurized fluid, such as a liquid antifreeze solution, between a first end and a second end. A first seal prevents fluid from a supply line from entering the flexible tube section. The first seal is maintained in a sealed position by a pressure of the pressurized fluid. A sprinkler head is coupled to the second end of the flexible tube section, and includes a frame, an output orifice, a deflector, a second seal that seals the output orifice, and a thermally responsive element configured to maintain the second seal in a sealed position when the thermally responsive element is in a non-responsive state. A differential pressure controller maintains a ratio between the pressure of the pressurized fluid in the flexible tube section and a pressure of a supply fluid in the supply line to at least a certain ratio.

SOLUTION PHASE SYNTHESIS OF BETA-TURN PEPTIDOMIMETIC CYCLIC SALTS
20210300966 · 2021-09-30 ·

The present disclosure relates to methods of preparing and crystallizing β-turn cyclic peptidomimetic salts of formula I:

##STR00001##

where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.10, X, Y and n are as defined in the specification.

The present disclosure provides a more efficient route for preparing a crystalline form of a β-turn cyclic peptidomimetic compounds and salts thereof.