Modulation of host chromatin by virus (kw:KW-1122)
Chromatin is defined as the structure that organizes DNA within the nucleus of eukaryotic cells. Histones play an essential function in the chromatin organization. They package and order the DNA into structural units called nucleosome. They undergo posttranslational modifications that affect their interaction with DNA and nuclear proteins. For example, histone acetylation is a hallmark of actively transcribed chromatin while methylation lead to either activated or repressed chromatin.

Many viruses evovled mechanisms to modulate chromatin factors to complete their life cycle. Nuclear entry, transcription, genome stabilization and virion packaging involve complex modulation of host chromatin. Paramecium bursaria chlorella virus 1 encodes vSET, a viral homolog of cellular SET protein and methylates specifically histone H3 at lysine-27 leading to rapid inhibition of host transcription after viral infection. Herpes simplexvirus VP16 protein recruits co-activators and transcription factors to IE promoters dissociating histones from these promoters while Us3 protein inhibits HDAC1. HIV protein TAT recruits the SWI/SNF chromatin remodelling complex to long terminal repeat (LTR) in order to increase its transactivating activities. Epstein-Barr virus BGLF4 modulates both host condensin and topoisomerase II. Human cytomegalovirus proteins IE1 and IE2 interact with host histone deacetylase HDAC3. This ability to modify chromatin is fundamental to transcriptional activation by IE1 and IE2.
Matching UniProtKB/Swiss-Prot entries
(all links/actions below point to uniprot.org website)69 entries grouped by strain
1 entry
Epstein-Barr virus (strain AG876) (HHV-4) (Human herpesvirus 4) reference strain
1 entry
Epstein-Barr virus (strain B95-8) (HHV-4) (Human herpesvirus 4) reference strain
1 entry
Equine herpesvirus 1 (strain Ab4p) (EHV-1) (Equine abortion virus) reference strain
1 entry
Foot-and-mouth disease virus serotype O (FMDV) reference strain
1 entry
Gallid herpesvirus 2 (strain Chicken/Md5/ATCC VR-987) (GaHV-2) (Marek's disease herpesvirus type 1) reference strain
1 entry
Human herpesvirus 1 (strain 17) (HHV-1) (Human herpes simplex virus 1) reference strain
1 entry
Human herpesvirus 2 (strain HG52) (HHV-2) (Human herpes simplex virus 2) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype A (isolate MAL) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype A (isolate U455) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate ARV2/SF2) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate BRU/LAI) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate HXB2) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate MN) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate RF/HAT3) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype B (strain 89.6) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype C (isolate 92BR025) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype C (isolate ETH2220) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype D (isolate ELI) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype F1 (isolate 93BR020) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype F1 (isolate VI850) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group M subtype H (isolate 90CF056) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group N (isolate YBF30) (HIV-1) reference strain
1 entry
Human immunodeficiency virus type 1 group O (isolate ANT70) (HIV-1) reference strain
1 entry
Psittacid herpesvirus 1 (isolate Amazon parrot/-/97-0001/1997) (PsHV-1) (Pacheco's disease virus) reference strain
1 entry
Simian immunodeficiency virus (isolate CPZ GAB1) (SIV-cpz) (Chimpanzee immunodeficiency virus) reference strain
1 entry
Simian immunodeficiency virus (isolate EK505) (SIV-cpz) (Chimpanzee immunodeficiency virus) reference strain
1 entry
Simian immunodeficiency virus (isolate MB66) (SIV-cpz) (Chimpanzee immunodeficiency virus) reference strain
1 entry
Varicella-zoster virus (strain Dumas) (HHV-3) (Human herpesvirus 3) reference strain
1 entry
Bovine herpesvirus 1.2 (strain ST) (BoHV-1) (Infectious bovine rhinotracheitis virus)
1 entry
Cercopithecine herpesvirus 9 (strain DHV) (CeHV-9) (Simian varicella virus)
1 entry
Epstein-Barr virus (strain GD1) (HHV-4) (Human gammaherpesvirus 4)
1 entry
Equine herpesvirus 1 (strain V592) (EHV-1) (Equine abortion virus)
1 entry
Foot-and-mouth disease virus (isolate -/Azerbaijan/A22-550/1965 serotype A) (FMDV)
1 entry
Foot-and-mouth disease virus (isolate -/Brazil/C3Indaial/1971 serotype C) (FMDV)
1 entry
Foot-and-mouth disease virus (isolate -/Germany/A5Westerwald/1951 serotype A) (FMDV)
1 entry
Foot-and-mouth disease virus (isolate -/Germany/C1Oberbayen/1960 serotype C) (FMDV)
1 entry
Foot-and-mouth disease virus (isolate -/Spain/S8c1SantaPau/1970 serotype C) (FMDV)
1 entry
Foot-and-mouth disease virus (isolate Bovine/Brazil/A24Cruzeiro/1955 serotype A) (FMDV)
1 entry
Foot-and-mouth disease virus (isolate Bovine/United Kingdom/A12Valle119/1932 serotype A) (FMDV)
1 entry
Foot-and-mouth disease virus (isolate Swine/Taiwan/OTai/1997 serotype O) (FMDV)
1 entry
Foot-and-mouth disease virus (strain A10/Holland/1961 serotype A) (FMDV)
1 entry
Foot-and-mouth disease virus serotype Asia-1 (FMDV)
1 entry
Foot-and-mouth disease virus serotype SAT-2 (FMDV)
1 entry
Gallid herpesvirus 2 (strain GA) (GaHV-2) (Marek's disease herpesvirus type 1)
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate BH10) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate CDC-451) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate HXB3) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate JRCSF) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate OYI) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate PCV12) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate SC) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate SF162) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate SF33) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype B (isolate YU-2) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype D (isolate NDK) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype D (isolate Z2/CDC-Z34) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype D (isolate Z6) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype F2 (isolate MP255) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype F2 (isolate MP257) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype G (isolate 92NG083) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype G (isolate SE6165) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype H (isolate VI991) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype J (isolate SE9173) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype J (isolate SE9280) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype K (isolate 96CM-MP535) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group M subtype K (isolate 97ZR-EQTB11) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group N (isolate YBF106) (HIV-1)
1 entry
Human immunodeficiency virus type 1 group O (isolate MVP5180) (HIV-1)
1 entry