High mobility group protein

Function

High mobility group protein (HMG) is a chromatin protein which organizes the DNA and regulates transcription. HMG superfamilies differ by their DNA-binding domains.

  • HMGAs bind via an AT-hook domain. For details on HMGA see HMGI(Y).
  • HMGBs bind via box domain[1].
  • HMGNs bind via a nucleosome binding domain.

Disease

Rearrangements of the HMGA2 gene were detected in human benign lipoma tumors[2].

Relevance

Overexpression of HMGB1 is associated with cancer and is targeted for cancer therapy[3].

Structural highlights

Rat HMGB1 tandem boxes complexed with DNA (PDB code 2gzk).

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3D Structures of high mobility group protein (HMG)3D Structures of high mobility group protein (HMG)

Updated on 12-September-2024

ReferencesReferences

  1. Bianchi ME, Manfredi AA. High-mobility group box 1 (HMGB1) protein at the crossroads between innate and adaptive immunity. Immunol Rev. 2007 Dec;220:35-46. PMID:17979838 doi:http://dx.doi.org/10.1111/j.1600-065X.2007.00574.x
  2. Fedele M, Battista S, Manfioletti G, Croce CM, Giancotti V, Fusco A. Role of the high mobility group A proteins in human lipomas. Carcinogenesis. 2001 Oct;22(10):1583-91. PMID:11576996
  3. Tang D, Kang R, Zeh HJ 3rd, Lotze MT. High-mobility group box 1 and cancer. Biochim Biophys Acta. 2010 Jan-Feb;1799(1-2):131-40. doi:, 10.1016/j.bbagrm.2009.11.014. PMID:20123075 doi:http://dx.doi.org/10.1016/j.bbagrm.2009.11.014

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