DIMA Biotech

DIMA Biotechnology Ltd. is a biotech company focusing on preclinical R&D products and services for druggable targets. They plan to complete the preparation of lead antibody molecules for all druggable targets in the next 3-5 years. DIMA Biotech provides multiple pre-prepared lead antibody molecules for each target to help pharmaceutical companies skip the tedious steps of monoclonal antibody platform establishment and lead molecule screening. Therefore, companies can have more time to focus on the biological mechanism and developability study of drug targets, thus accelerating the process of new drug R&D.

Over the years, DIMA Biotech has been deeply engaged in developing and optimizing the underlying technology platforms for preclinical research. Currently, they have established two independently developed core technology platforms:

Single/multiple transmembrane protein eukaryotic expression, preparation and purification platforms, apply mammalian cell expression systems, provide ECD or full-length membrane protein products closest to native conformation and functional validation. In addition, DIMA Biotech has developed five major functional full-length transmembrane protein preparation systems, including Membrane Nanoparticle (MNP), Virus-Like Particle (VLP), Exosome (EXO), Detergent and Synthetic Nanodisc. Thousands of drug target protein products are in stock.
DimAb® High-throughput single B-cell lead antibody molecule discovery platform. DIMA Biotech has completed the preparation and screening of lead antibody molecules against more than 200 drug targets by this platform in just two years. Moreover, they have formed strategic partnerships with several international pharmaceutical enterprises and licensed several drug target molecules. DIMA’s preclinical development strength is widely recognized by the industry.

www.dimabio.com

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Human CD22 Protein, hFc-His Tag PME100005

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Specifications

size	10µg / 50µg / 100µg

Alternative names:

CD22;SIGLEC2;BL-CAM;SIGLEC-2;Siglec2;SIGLEC2FLJ22814

Description:

Recombinant human CD22 protein with C-terminal human Fc and 6×His tag

Background:

B-cell receptor CD22 is also known as Sialic acid-binding Ig-like lectin 2 (Siglec-2), B-lymphocyte cell adhesion molecule (BL-CAM), T-cell surface antigen Leu-14, which belongs to the immunoglobulin superfamily and SIGLEC (sialic acid binding Ig-like lectin) family. CD22 mediates B-cell B-cell interactions, and may be involved in the localization of B-cells in lymphoid tissues. Siglec-2 / CD22 binds sialylated glycoproteins, one of which is CD45. Siglec2 / CD22 plays a role in positive regulation through interaction with Src family tyrosine kinases and may also act as an inhibitory receptor by recruiting cytoplasmic phosphatases via their SH2 domains that block signal transduction through dephosphorylation of signaling molecules.

Molecular characterization:

CD22(Asp20-Arg687) hFc(Glu99-Ala330) 6×His tag

Molecular weight:

The protein has a predicted molecular mass of 102.1 kDa after removal of the signal peptide. The apparent molecular mass of CD22-hFc-His is approximately 130-180 kDa due to glycosylation.

Tag:

C-Human Fc and 6×His Tag

Expression host:

HEK293

Target:

CD22

Purity:

The purity of the protein is greater than 95% as determined by SDS-PAGE and Coomassie blue staining.

Formulation / Reconstitution:

Lyophilized from sterile PBS, pH 7.4. Normally 5 % - 8% trehalose is added as protectants before lyophilization. Please see Certificate of Analysis for specific instructions of reconstitution.

Storage:

Store at -20°C to -80°C for 12 months in lyophilized form. After reconstitution, if not intended for use within a month, aliquot and store at -80°C (Avoid repeated freezing and thawing). Lyophilized proteins are shipped at ambient temperature.

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