Protein: Protein pp71 (pp71) (71 kDa upper matrix phosphoprotein) (Phosphoprotein UL82) (ppUL82) (Tegument protein UL82) (P06726)
Organism: Human cytomegalovirus (strain AD169) (HHV-5) (Human herpesvirus 5)
Function: Stimulates viral immediate-early (IE) transcription. Plays a role in the inhibition of the host innate repsonse by targeting STING1 and thus the cGAS-STING pathway. Counteracts also host DAXX-mediated repression of viral transcription. Displaces a DAXX-binding protein, ATRX, from nuclear domain 10 sites (ND10) shortly after infection. Increases the basal level of SUMOylated DAXX in infected cells. Stimulates quiescent cells to re-enter the cell cycle, proceed through G1 and enter the S phase. Interacts with hypophosphorylated forms of RB1 and induces their degradation by the proteasome without involving ubiquitin conjugation.
Subcellular location: Virion tegument {ECO:0000305}. Host nucleus {ECO:0000269|PubMed:19369322, ECO:0000269|PubMed:9000101}. Host endoplasmic reticulum {ECO:0000269|PubMed:28132838}. Note=Present in the nucleus shortly after infection as well as during the late phase of viral morphogenesis. Detected at nuclear domain 10 (ND10).
Sequence: MSQASSSPGEGPSSEAAAISEAEAASGSFGRLHCQVLRLITNVEGGSLEAGRLRLLDLRTNIEVSRPSVLCCFQENKSPHDTVDLTDLNIKGRCVVGEQDRLLVDLNNFGPRRLTPGSENNTVSVLAFALPLDRVPVSGLHLFQSQRRGGEENRPRMEARAIIRRTAHHWAVRLTVTPNWRRRTDSSLEAGQIFVSQFAFRAGAIPLTLVDALEQLACSDPNTYIHKTETDERGQWIMLFLHHDSPHPPTSVFLHFSVYTHRAEVVARHNPYPHLRRLPDNGFQLLIPKSFTLTRIHPEYIVQIQNAFETNQTHDTIFFPENIPGVSIEAGPLPDRVRITLRVTLTGDQAVHLEHRQPLGRIHFFRRGFWTLTPGKPDKIKRPQVQLRAGLFPRSNVMRGAVSEFLPQSPGLPPTEEEEEEEEEDDEDDLSSTPTPTPLSEAMFAGFEEASGDEDSDTQAGLSPALILTGQRRRSGNNGALTLVIPSWHVFASLDDLVPLTVSVQHAALRPTSYLRSDMDGDVRTAADISSTLRSVPAPRPSPISTASTSSTPRSRPRI
InterPro domains: - IPR008649: Herpesvirus UL82/UL83 (family) [28-371]
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0005515 (protein binding)
Biological Process (BP): GO:0008150 (biological process), GO:0065007 (biological regulation), GO:0050896 (response to stimulus), GO:0050789 (regulation of biological process), GO:0044419 (biological process involved in interspecies interaction between organisms), GO:0048519 (negative regulation of biological process), GO:0016032 (viral process), GO:0009605 (response to external stimulus), GO:0044068 (modulation by symbiont of host cellular process), GO:0009607 (response to biotic stimulus), GO:0050794 (regulation of cellular process), GO:0048583 (regulation of response to stimulus), GO:0002682 (regulation of immune system process), GO:0035821 (modulation of process of another organism), GO:0019048 (modulation by virus of host process), GO:0044403 (biological process involved in symbiotic interaction), GO:0051707 (response to other organism), GO:0048585 (negative regulation of response to stimulus), GO:0051701 (biological process involved in interaction with host), GO:0075528 (modulation by virus of host immune response), GO:0050776 (regulation of immune response), GO:0043207 (response to external biotic stimulus), GO:0052173 (response to defenses of other organism), GO:0080134 (regulation of response to stress), GO:0044003 (modulation by symbiont of host process), GO:0075136 (response to host), GO:0039503 (suppression by virus of host innate immune response), GO:0019054 (modulation by virus of host cellular process), GO:0031348 (negative regulation of defense response), GO:0044414 (suppression of host defenses by symbiont), GO:0031347 (regulation of defense response), GO:0052200 (response to host defenses), GO:0052031 (modulation by symbiont of host defense response), GO:0019049 (mitigation of host antiviral defense response), GO:0052170 (suppression by symbiont of host innate immune response), GO:0052572 (response to host immune response), GO:0030682 (mitigation of host defenses by symbiont), GO:0052553 (modulation by symbiont of host immune response), GO:0052167 (modulation by symbiont of host innate immune response), GO:0052562 (suppression by symbiont of host immune response)
Cellular Component (CC): GO:0005575 (cellular component), GO:0044423 (virion component), GO:0019033 (viral tegument)