HMGB2

Last updated
HMGB2
Protein HMGB2 PDB 1ckt.png
Identifiers
Aliases HMGB2 , HMG2, high mobility group box 2
External IDs OMIM: 163906 MGI: 96157 HomoloGene: 37582 GeneCards: HMGB2
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_002129
NM_001130688
NM_001130689

NM_008252
NM_001363443
NM_001363444
NM_001363445

RefSeq (protein)

NP_001124160
NP_001124161
NP_002120

NP_032278
NP_001350372
NP_001350373
NP_001350374

Location (UCSC) Chr 4: 173.33 – 173.33 Mb Chr 8: 57.51 – 57.52 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

High-mobility group protein B2 also known as high-mobility group protein 2 (HMG-2) is a protein that in humans is encoded by the HMGB2 gene. [5] [6]

Contents

Function

This gene encodes a member of the non-histone chromosomal high-mobility group protein family. [7] 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. [6]

Related Research Articles

Histone acetyltransferase Enzymes that catalyze acyl group transfer from acetyl-CoA to histones

Histone acetyltransferases (HATs) are enzymes that acetylate conserved lysine amino acids on histone proteins by transferring an acetyl group from acetyl-CoA to form ε-N-acetyllysine. DNA is wrapped around histones, and, by transferring an acetyl group to the histones, genes can be turned on and off. In general, histone acetylation increases gene expression.

HMGN proteins are members of the broader class of high mobility group (HMG) chromosomal proteins that are involved in regulation of transcription, replication, recombination, and DNA repair.

High-Mobility Group or HMG is a group of chromosomal proteins that are involved in the regulation of DNA-dependent processes such as transcription, replication, recombination, and DNA repair.

Autoimmune regulator Transcription factor expressed in the medulla (inner part) of the thymus. It is part of the mechanism which eliminates self-reactive T cells that would cause autoimmune disease.

The autoimmune regulator (AIRE) is a protein that in humans is encoded by the AIRE gene. It is a 13kb gene on chromosome 21q22.3 that has 545 amino acids. AIRE is a transcription factor expressed in the medulla of the thymus. It is part of the mechanism which eliminates self-reactive T cells that would cause autoimmune disease. It exposes T cells to normal, healthy proteins from all parts of the body, and T cells that react to those proteins are destroyed.

Dame Jean Olwen Thomas, is a Welsh biochemist, former Master of St Catharine's College, Cambridge, and Chancellor of Swansea University.

Chromatin remodeling is the dynamic modification of chromatin architecture to allow access of condensed genomic DNA to the regulatory transcription machinery proteins, and thereby control gene expression. Such remodeling is principally carried out by 1) covalent histone modifications by specific enzymes, e.g., histone acetyltransferases (HATs), deacetylases, methyltransferases, and kinases, and 2) ATP-dependent chromatin remodeling complexes which either move, eject or restructure nucleosomes. Besides actively regulating gene expression, dynamic remodeling of chromatin imparts an epigenetic regulatory role in several key biological processes, egg cells DNA replication and repair; apoptosis; chromosome segregation as well as development and pluripotency. Aberrations in chromatin remodeling proteins are found to be associated with human diseases, including cancer. Targeting chromatin remodeling pathways is currently evolving as a major therapeutic strategy in the treatment of several cancers.

Promyelocytic leukemia protein

Promyelocytic leukemia protein (PML) is the protein product of the PML gene. PML protein is a tumor suppressor protein required for the assembly of a number of nuclear structures, called PML-nuclear bodies, which form amongst the chromatin of the cell nucleus. These nuclear bodies are present in mammalian nuclei, at about 1 to 30 per cell nucleus. PML-NBs are known to have a number of regulatory cellular functions, including involvement in programmed cell death, genome stability, antiviral effects and controlling cell division. PML mutation or loss, and the subsequent dysregulation of these processes, has been implicated in a variety of cancers.

HMGB1

High mobility group box 1 protein, also known as high-mobility group protein 1 (HMG-1) and amphoterin, is a protein that in humans is encoded by the HMGB1 gene.

HMGA1

High-mobility group protein HMG-I/HMG-Y is a protein that in humans is encoded by the HMGA1 gene.

NFYA

Nuclear transcription factor Y subunit alpha is a protein that in humans is encoded by the NFYA gene.

DDB2

DNA damage-binding protein 2 is a protein that in humans is encoded by the DDB2 gene.

CENPA

Centromere protein A, also known as CENPA, is a protein which in humans is encoded by the CENPA gene. CENPA is a histone H3 variant which is the critical factor determining the kinetochore position(s) on each chromosome in most eukaryotes including humans.

H2AFY

Core histone macro-H2A.1 is a protein that in humans is encoded by the H2AFY gene.

HMGN1

Non-histone chromosomal protein HMG-14 is a protein that in humans is encoded by the HMGN1 gene.

NFYC

Nuclear transcription factor Y subunit gamma is a protein that in humans is encoded by the NFYC gene.

HMGN2

Non-histone chromosomal protein HMG-17 is a protein that in humans is encoded by the HMGN2 gene.

HMGB3

High-mobility group protein B3 is a protein that in humans is encoded by the HMGB3 gene.

High mobility group protein HMG14 and HMG17 also known as nucleosomal binding domain is a family of evolutionarily related proteins.

FOXA2

Forkhead box protein A2 (FOXA2), also known as hepatocyte nuclear factor 3-beta (HNF-3B), is a transcription factor that plays an important role during development, in mature tissues and, when dysregulated or mutated, also in cancer.

H2AFB3

H2A histone family, member B3 is a protein that in humans is encoded by the H2AFB3 gene.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000164104 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000054717 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Majumdar A, Brown D, Kerby S, Rudzinski I, Polte T, Randhawa Z, Seidman MM (Dec 1991). "Sequence of human HMG2 cDNA". Nucleic Acids Research. 19 (23): 6643. doi:10.1093/nar/19.23.6643. PMC   329240 . PMID   1754403.
  6. 1 2 "Entrez Gene: HMGB2 high-mobility group box 2".
  7. Murugesapillai D, McCauley MJ, Maher LJ, Williams MC (15 November 2016). "Single-molecule studies of high-mobility group B architectural DNA bending proteins". Biophysical Reviews. 9 (1): 17–40. doi:10.1007/s12551-016-0236-4. PMC   5331113 . PMID   28303166.

Further reading