DNA binding proteins that associates with chromatin and has the ability to bend DNA. Binds preferentially single-stranded DNA. 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). Heparin-binding protein that has a role in the extension of neurite-type cytoplasmic processes in developing cells. Component of the RAG complex composed of core components RAG1 and RAG2, and associated component HMGB1 or HMGB2. Belongs to the HMGB family. Note: This description may include information from UniProtKB.
Protein type: Nuclear receptor co-regulator; DNA repair, damage
Molecular Function: protein binding; RAGE receptor binding; double-stranded DNA binding; damaged DNA binding; cytokine activity; transcription factor binding; DNA bending activity; transcription factor activity; single-stranded DNA binding; chemoattractant activity
Biological Process: negative regulation of transcriptional preinitiation complex assembly; V(D)J recombination; DNA topological change; apoptosis; positive regulation of apoptosis; positive regulation of caspase activity; base-excision repair, DNA ligation; negative regulation of transcription from RNA polymerase II promoter; DNA recombination; regulation of transcription from RNA polymerase II promoter; myeloid dendritic cell activation; inflammatory response to antigenic stimulus; positive chemotaxis; innate immune response; DNA ligation during DNA repair; dendritic cell chemotaxis; positive regulation of transcription from RNA polymerase II promoter; DNA fragmentation during apoptosis; neurite development; cell structure disassembly during apoptosis; positive regulation of DNA binding
Alt. Names/Synonyms: Amphoterin; DKFZp686A04236; high mobility group box 1; High mobility group protein 1; High mobility group protein B1; high-mobility group (nonhistone chromosomal) protein 1; high-mobility group box 1; HMG-1; HMG1; HMG3; HMGB1; SBP-1; Sulfoglucuronyl carbohydrate binding protein
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.