Recombinant Human High mobility group protein B2 (HMGB2)

Uniprot Id

P26583

Target Species

Human

Target Name

HMGB2

Target Full Name

High mobility group protein B2

Target Function

Multifunctional protein with various roles in different cellular compartments. May act in a redox sensitive manner. In the nucleus is an abundant chromatin-associated non-histone protein involved in transcription, chromatin remodeling and V(D)J recombination and probably other processes. Binds DNA with a preference to non-canonical DNA structures such as single-stranded DNA. Can bent DNA and enhance DNA flexibility by looping thus providing a mechanism to promote activities on various gene promoters by enhancing transcription factor binding and/or bringing distant regulatory sequences into close proximity. Involved in V(D)J recombination by acting as a cofactor of the RAG complex: acts by stimulating cleavage and RAG protein binding at the 23 bp spacer of conserved recombination signal sequences (RSS). Proposed to be involved in the innate immune response to nucleic acids by acting as a promiscuous immunogenic DNA/RNA sensor which cooperates with subsequent discriminative sensing by specific pattern recognition receptors. In the extracellular compartment acts as a chemokine. Promotes proliferation and migration of endothelial cells implicating AGER/RAGE. Has antimicrobial activity in gastrointestinal epithelial tissues. Involved in inflammatory response to antigenic stimulus coupled with proinflammatory activity. Involved in modulation of neurogenesis probably by regulation of neural stem proliferation. Involved in articular cartilage surface maintenance implicating LEF1 and the Wnt/beta-catenin pathway.

Target Subcellular Location

Nucleus. Chromosome. Cytoplasm. Secreted.

Target Protein Families

HMGB family

Target Tissue Specificity

Expressed in gastric and intestinal tissues (at protein level).

Target Synonyms

C80539; High mobility group (nonhistone chromosomal) protein 2; High mobility group box 2; High mobility group protein 2; High mobility group protein B2; HMG 2; HMG B2; HMG-2; HMG2; HMGB2; HMGB2_HUMAN

Target Background

This gene encodes a member of the non-histone chromosomal high mobility group protein family. The proteins of this family are chromatin-associated and ubiquitously distributed in the nucleus of higher eukaryotic cells. In vitro studies have demonstrated that this protein is able to efficiently bend DNA and form DNA circles. These studies suggest a role in facilitating cooperative interactions between cis-acting proteins by promoting DNA flexibility. This protein was also reported to be involved in the final ligation step in DNA end-joining processes of DNA double-strand breaks repair and V(D)J recombination.