Protein: Major DNA-binding protein (F5HDQ6)
Organism: Human cytomegalovirus (strain Merlin) (HHV-5) (Human herpesvirus 5)
Function: Plays several crucial roles in viral infection. Participates in the opening of the viral DNA origin to initiate replication by interacting with the origin-binding protein. May disrupt loops, hairpins and other secondary structures present on ssDNA to reduce and eliminate pausing of viral DNA polymerase at specific sites during elongation. Promotes viral DNA recombination by performing strand-transfer, characterized by the ability to transfer a DNA strand from a linear duplex to a complementary single-stranded DNA circle. Can also catalyze the renaturation of complementary single strands. Additionally, reorganizes the host cell nucleus, leading to the formation of prereplicative sites and replication compartments. This process is driven by the protein which can form double-helical filaments in the absence of DNA.
Subcellular location: Host nucleus {ECO:0000255|HAMAP-Rule:MF_04007}. Note=In the absence of DNA replication, found in the nuclear framework-associated structures (prereplicative sites). As viral DNA replication proceeds, it migrates to globular intranuclear structures (replication compartments). {ECO:0000255|HAMAP-Rule:MF_04007}.
Sequence: MSHEELTALAPVGPAAFLYFSRLNAETQEILATLSLCDRSSSVVIAPLLAGLTVEADFGVSVRTPVLCYDGGVLTKVTSFCPFALYFHHTQGIVAFTEDHGDVHRLCEDARQKYALEAYTPEADRVPTDLAALCAAVGCQASETTVHVVVGNGLKEFLFAGQLIPCVEEATTVRLHGGEAVRVPLYPPTLFNSLQLDAEADEVSLDARSAFVEARGLYVPAVSETLFYYVYTSWCQSLRFSEPRVLIEAALRQFVHDSQQSVKLAPHKRYLGYMSQRLSSLEKDHLMLSDAVVCELAFSFASVFFDSAYQPAESMLFSEWPLVTNATDHRDLIRALTELKLHLSTHVAALVFSANSVLYQHRLVYLQSSARHPSAGGTASQETLLKAIQFTNGLSAACEDVYNDARKVLKFQGAPLKDERYGPQHLALVCGTCPQLVSGFVWYLNRVSVYNTGLSGSSTLTNHLVGCAAGLCEACGGTCCHTCYQTAFVRVRTRLPVVPKQPKKEPCVITVQSRFLNDVDILGSFGRRYNVDAKDGGLDGKGDDGVPGGGAGGGGGRDVSGGPSDGLGGGRGGGGGGDSGGMMGRGGRMLGASVDRTYRLNRILDYCRKMRLIDPVTGEDTFSAHGKSDFVAVFSALNKFVDDEALGFVSEVRLKSSRDEVAGATQAFNLDLNPYAVAFQPLLAYAYFRSVFYVIQNVALITATSYIVDNPLTTNLVSKWMTQHFQSIHGAFSTTSSRKGFLFTKQIKSSKNSDHDRLLDFRLYAQGTYAVVPMEIKLSRLSVPTLIMVRVKNRPIYRAGKGNAGSVFFRRDHVPRRNPAKGCLGFLLYRHHERLFPECGLPCLQFWQKVCSNALPKNVPIGDMGEFNAFVKFLVAVTADYQEHDLLDVAPDCVLSYVESRFHNKFLCYYGFKDYIGSLHGLTTRLTTQNHAQFPHVLGASPRFSSPAEFALHVKGLKTAGVPAPMAATVARESLVRSVFEHRSLVTVPVSVEKYAGINNSKEIYQFGQIGYFSGNGVERSLNVSSMSGQDYRFMRQRYLLATRLADVLIKRSRRENVLFDADLIKNRVMLALDAENLDCDPEVMAVYEILSVREEIPASDDVLFFVDGCEALAASLMDKFAALQEQGVEDFSLENLRRVLDADAQRLTDAAGGEVHDLSALFAPSGVGAASGVGGGGLLLGESVAGNSICFGVPGETGGGCFLVNAGEDEAGGVGGSSGGGGGSGLLPAKRSRL
InterPro domains: - IPR035989: DBP-like superfamily (homologous_superfamily) [7-1142]
- IPR000635: Viral ssDNA-binding protein (family) [1-1235]
- IPR043031: Viral ssDNA binding protein, head domain (homologous_superfamily) [783-916]
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:0008152 (metabolic process), GO:0009987 (cellular process), GO:0016032 (viral process), GO:0009058 (biosynthetic process), GO:0044237 (cellular metabolic process), GO:0019058 (viral life cycle), GO:0071704 (organic substance metabolic process), GO:0044238 (primary metabolic process), GO:0006807 (nitrogen compound metabolic process), GO:0019079 (viral genome replication), GO:0044249 (cellular biosynthetic process), GO:0006725 (cellular aromatic compound metabolic process), GO:1901360 (organic cyclic compound metabolic process), GO:0034641 (cellular nitrogen compound metabolic process), GO:1901576 (organic substance biosynthetic process), GO:0039693 (viral DNA genome replication), GO:0006139 (nucleobase-containing compound metabolic process), GO:0044260 (cellular macromolecule metabolic process), GO:0043170 (macromolecule metabolic process), GO:0046483 (heterocycle metabolic process), GO:0006259 (DNA metabolic process), GO:0009059 (macromolecule biosynthetic process), GO:0039686 (bidirectional double-stranded viral DNA replication), GO:1901362 (organic cyclic compound biosynthetic process), GO:0044271 (cellular nitrogen compound biosynthetic process), GO:0090304 (nucleic acid metabolic process), GO:0034654 (nucleobase-containing compound biosynthetic process), GO:0019438 (aromatic compound biosynthetic process), GO:0018130 (heterocycle biosynthetic process), GO:0071897 (DNA biosynthetic process)
Cellular Component (CC): GO:0005575 (cellular component), GO:0044423 (virion component), GO:0019033 (viral tegument)