KR2_EBVA8
ID KR2_EBVA8 Reviewed; 429 AA.
AC P0C6Z8; Q777D1;
DT 26-MAY-2009, integrated into UniProtKB/Swiss-Prot.
DT 26-MAY-2009, sequence version 1.
DT 03-AUG-2022, entry version 52.
DE RecName: Full=Serine/threonine-protein kinase BGLF4;
DE EC=2.7.11.1;
GN ORFNames=BGLF4;
OS Epstein-Barr virus (strain AG876) (HHV-4) (Human herpesvirus 4).
OC Viruses; Duplodnaviria; Heunggongvirae; Peploviricota; Herviviricetes;
OC Herpesvirales; Herpesviridae; Gammaherpesvirinae; Lymphocryptovirus.
OX NCBI_TaxID=82830;
OH NCBI_TaxID=9606; Homo sapiens (Human).
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=16490228; DOI=10.1016/j.virol.2006.01.015;
RA Dolan A., Addison C., Gatherer D., Davison A.J., McGeoch D.J.;
RT "The genome of Epstein-Barr virus type 2 strain AG876.";
RL Virology 350:164-170(2006).
CC -!- FUNCTION: Plays many key roles by phosphorylating several proteins
CC including the viral DNA processivity factor BMRF1, EBNA1 or EBNA2.
CC Modifies the host nuclear envelope structure and induces the
CC redistribution of nuclear envelope-associated proteins by
CC phosphorylating host nucleoporins. Subsequently, promotes the nuclear
CC transport of EBV lytic proteins. Required for efficient lytic DNA
CC replication and release of nucleocapsids from the nucleus. Contributes
CC to the compaction of host cell chromatin in cells undergoing lytic
CC replication, presumably by phosphorylating the host condensin complex
CC and host TOP2A. Induces disassembly of the nuclear lamina by
CC phosphorylating with host LMNA. Phosphorylates substrates involved in
CC capsid assembly and DNA packaging. Facilitates the switch from latent
CC to lytic DNA replication by down-regulating EBNA1 replication function.
CC Phosphorylates the viral immediate-early protein BZLF1 and inhibits its
CC sumoylation by interacting with host SUMO1 and SUMO2. Phosphorylates
CC also host SAMHD1 and thereby counteracts its antiviral effect by
CC reducing its dNTP hydrolase activity. {ECO:0000250|UniProtKB:P13288}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-seryl-[protein] = ADP + H(+) + O-phospho-L-seryl-
CC [protein]; Xref=Rhea:RHEA:17989, Rhea:RHEA-COMP:9863, Rhea:RHEA-
CC COMP:11604, ChEBI:CHEBI:15378, ChEBI:CHEBI:29999, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:83421, ChEBI:CHEBI:456216; EC=2.7.11.1;
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-threonyl-[protein] = ADP + H(+) + O-phospho-L-
CC threonyl-[protein]; Xref=Rhea:RHEA:46608, Rhea:RHEA-COMP:11060,
CC Rhea:RHEA-COMP:11605, ChEBI:CHEBI:15378, ChEBI:CHEBI:30013,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:61977, ChEBI:CHEBI:456216;
CC EC=2.7.11.1;
CC -!- SUBUNIT: Interacts with host NUP62 and NUP153; this interaction plays a
CC role in nuclear targeting of BGLF4. Interacts with host SUMO1 and
CC SUMO2. {ECO:0000250|UniProtKB:P13288}.
CC -!- SUBCELLULAR LOCATION: Virion tegument {ECO:0000250|UniProtKB:P13288}.
CC Host nucleus {ECO:0000250|UniProtKB:P13288}. Note=the protein is
CC present at discrete sites in nuclei, called replication compartments
CC where viral DNA replication occurs. {ECO:0000250|UniProtKB:P13288}.
CC -!- SIMILARITY: Belongs to the protein kinase superfamily. Ser/Thr protein
CC kinase family. {ECO:0000255|PROSITE-ProRule:PRU00159}.
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DR EMBL; DQ279927; ABB89262.1; -; Genomic_DNA.
DR RefSeq; YP_001129482.1; NC_009334.1.
DR RefSeq; YP_401688.1; NC_007605.1.
DR DNASU; 3783704; -.
DR GeneID; 3783704; -.
DR GeneID; 5176213; -.
DR KEGG; vg:3783704; -.
DR KEGG; vg:5176213; -.
DR Proteomes; UP000007639; Genome.
DR GO; GO:0042025; C:host cell nucleus; IEA:UniProtKB-SubCell.
DR GO; GO:0019033; C:viral tegument; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0106310; F:protein serine kinase activity; IEA:RHEA.
DR GO; GO:0004674; F:protein serine/threonine kinase activity; IEA:UniProtKB-KW.
DR GO; GO:0039525; P:modulation by virus of host chromatin organization; IEA:UniProtKB-KW.
DR GO; GO:0006468; P:protein phosphorylation; IEA:InterPro.
DR GO; GO:0039548; P:suppression by virus of host viral-induced cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF3 activity; IEA:UniProtKB-KW.
DR InterPro; IPR011009; Kinase-like_dom_sf.
DR InterPro; IPR000719; Prot_kinase_dom.
DR InterPro; IPR008266; Tyr_kinase_AS.
DR SMART; SM00220; S_TKc; 1.
DR SUPFAM; SSF56112; SSF56112; 1.
DR PROSITE; PS50011; PROTEIN_KINASE_DOM; 1.
DR PROSITE; PS00109; PROTEIN_KINASE_TYR; 1.
PE 3: Inferred from homology;
KW ATP-binding; Early protein; Host nucleus; Host-virus interaction;
KW Inhibition of host innate immune response by virus;
KW Inhibition of host IRF3 by virus; Inhibition of host RLR pathway by virus;
KW Kinase; Modulation of host chromatin by virus; Nucleotide-binding;
KW Reference proteome; Serine/threonine-protein kinase; Transferase;
KW Viral immunoevasion; Virion; Virion tegument.
FT CHAIN 1..429
FT /note="Serine/threonine-protein kinase BGLF4"
FT /id="PRO_0000375959"
FT DOMAIN 1..409
FT /note="Protein kinase"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
FT REGION 1..27
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 36..40
FT /note="SUMO interaction motif"
FT /evidence="ECO:0000250|UniProtKB:P13288"
FT REGION 344..350
FT /note="SUMO interaction motif"
FT /evidence="ECO:0000250|UniProtKB:P13288"
FT COMPBIAS 7..24
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 195
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00159,
FT ECO:0000255|PROSITE-ProRule:PRU10028"
FT BINDING 110..118
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
FT BINDING 128
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00159"
SQ SEQUENCE 429 AA; 48351 MW; 241ECF46F613A68B CRC64;
MDVNMAAELS PTNSSSSGEL SVSPEPPRET QAFLGKVTVI DYFTFQHKHL KVTNIDDMTE
TLYVKLPENM TRCDHLPITC EYLLGRGSYG AVYAHADNAT VKLYDSVTEL YHELMVCDMI
QIGKATAEDG QDKALVDYLS ACTSCHALFM PQFRCSLQDY GHWHDGSIEP LVRGFQGLKD
AVYFLNRHCG LFHSDISPSN ILVDFTDTMW GMGRLVLTDY GTASLHDRNK MLDVRLKSSK
GRQLYRLYCQ REPFSIAKDT YKPLCLLSKC YILRGAGHIP DPSACGPVGA QTALRLDLQS
LGYSLLYGIM HLADSTHKIP YPNPDMGFDR SDPLYFLQFA APKVVLLEVL SQMWNLNLDM
GLTSCGESPC VDVTAEHMSQ FLQWCRSLKK RFKESYFFNC RPRFEHPHLP GLVAELLADD
FFGPDGRRG
