Q2HRD3 · DNBI_HHV8P
- ProteinMajor DNA-binding protein
- GeneDBP
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids1132 (go to sequence)
- Protein existenceEvidence at protein level
- Annotation score3/5
Function
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.
GO annotations
all annotations | all molecular function | virus receptor activity | dna binding | rna binding | cytoskeletal motor activity | catalytic activity | gtpase activity | structural molecule activity | transporter activity | cytoskeletal protein binding | lipid binding | cyclase activity | antioxidant activity | oxidoreductase activity | transferase activity | hydrolase activity | lyase activity | isomerase activity | ligase activity | protein tag activity | cargo receptor activity | histone binding | protein folding chaperone | translation regulator activity | nutrient reservoir activity | receptor ligand activity | molecular transducer activity | molecular adaptor activity | toxin activity | cell adhesion mediator activity | molecular function regulator activity | virus coreceptor activity | catalytic activity, acting on a protein | catalytic activity, acting on dna | catalytic activity, acting on rna | molecular carrier activity | transcription regulator activity | general transcription initiation factor activity | molecular sensor activity | molecular sequestering activity | atp-dependent activity | other molecular function | all biological process | mitotic cell cycle | cytokinesis | cytoplasmic translation | immune system process | muscle system process | circulatory system process | renal system process | respiratory system process | carbohydrate metabolic process | generation of precursor metabolites and energy | dna replication | dna repair | dna recombination | chromatin organization | dna-templated transcription | regulation of dna-templated transcription | trna metabolic process | protein folding | protein glycosylation | amino acid metabolic process | modified amino acid metabolic process | lipid metabolic process | vitamin metabolic process | sulfur compound metabolic process | intracellular protein transport | nucleocytoplasmic transport | autophagy | inflammatory response | mitochondrion organization | cytoskeleton organization | microtubule-based movement | peroxisome organization | lysosome organization | chromosome segregation | cell adhesion | establishment or maintenance of cell polarity | programmed cell death | photosynthesis | mrna metabolic process | snrna metabolic process | vesicle-mediated transport | reproductive process | digestive system process | signaling | cell differentiation | protein catabolic process | extracellular matrix organization | regulatory ncrna-mediated gene silencing | telomere organization | cell junction organization | wound healing | ribosome biogenesis | cilium organization | anatomical structure development | cell motility | nervous system process | endocrine process | protein maturation | transmembrane transport | nucleobase-containing small molecule metabolic process | hepaticobiliary system process | membrane organization | protein-containing complex assembly | cell wall organization or biogenesis | nitrogen cycle metabolic process | protein localization to plasma membrane | defense response to other organism | detoxification | meiotic nuclear division | mitotic nuclear division | mitochondrial gene expression | carbohydrate derivative metabolic process | other biological process | all cellular component | nuclear chromosome | extracellular region | extracellular space | cell wall | nucleus | nuclear envelope | nucleoplasm | chromosome | nucleolus | mitochondrion | lysosome | endosome | vacuole | peroxisome | endoplasmic reticulum | golgi apparatus | lipid droplet | microtubule organizing center | cytosol | ribosome | cytoskeleton | plasma membrane | cilium | plastid | thylakoid | external encapsulating structure | extracellular matrix | cytoplasmic vesicle | organelle | other cellular component | |||
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Aspect | Term | |
---|---|---|
Cellular Component | host cell nucleus | |
Molecular Function | single-stranded DNA binding | |
Biological Process | bidirectional double-stranded viral DNA replication | |
Biological Process | DNA replication |
Keywords
- Molecular function
- Biological process
Names & Taxonomy
Protein names
- Recommended nameMajor DNA-binding protein
Gene names
Organism names
- Taxonomic lineageViruses > Duplodnaviria > Heunggongvirae > Peploviricota > Herviviricetes > Herpesvirales > Orthoherpesviridae > Gammaherpesvirinae > Rhadinovirus > Rhadinovirus humangamma8 > Human herpesvirus 8
- Virus hosts
Accessions
- Primary accessionQ2HRD3
Proteomes
Subcellular Location
UniProt Annotation
GO Annotation
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).
Keywords
- Cellular component
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Chain | PRO_0000423834 | 1-1132 | Major DNA-binding protein | |||
Sequence: MALKGPQTLEENIGSAAPTGPCGYLYAYVTHNFPIGEASLLGNGYPEAKVFSLPLLHGLTVESDFPLNVKAVHKKIDATTASVKLTSYHREAIVFHNTHLFQPIFQGKGLEKLCRESRELFGFSTFVEQQHKGTLWSPEACPQLPCANEIFMAVIVTEGFKERLYGGKLVPVPSQTTPVHIGEHQAFKIPLYDEDLFGPSRAQELCRFYNPDISRYLHDSIFTGIAQALRVKDVSTVIQASERQFVHDQYKIPKLVQAKDFPQCASRGTDGSTLMVIDSLVAELGMSYGLSFIEGPQDSCEVLNYDTWPIFENCETPDARLRALEVWHAEQALHIGAQLFAANSVLYLTRVAKLPQKNQRGDANMYNSFYLQHGLGYLSEATVKENGASAFKGVPVSALDGSSYTLQHLAYASSFSPHLLARMCYYLQFLPHHKNTNSQSYNVVDYVGTAAPSQMCDLCQGQCPAVCINTLFYRMKDRFPPVLSNVKRDPYVITGTAGTYNDLEILGNFATFREREEEGNPVEDAPKYTYWQLCQNITEKLASMGISEGGDALRTLIVDIPSFVKVFKGIDSTVEAELLKFINCMIKNNYNFRENIKSVHHILQFACNVYWQAPCPVFLTLYYKSLLTVIQDICLTSCMMYEQDNPAVGIVPSEWLKMHFQTMWTNFKGACFDKGAITGGELKIVHQSMFCDLFDTDAAIGGMFAPARMQVRIARAMLMVPKTIKIKNRIIFSNSTGAESIQAGFMKPASQRDSYIVGGPYMKFLNALHKTLFPSTKTSALYLWHKIGQTTKNPILPGVSGEHLTELCNYVKASSQAFEEINVLDLVPDTLTSYAKIKLNSSILRACGQTQFYATTLSCLSPVTQLVPAEEYPHVLGPVGLSSPDEYRVKVAGRSVTIVQSTLKQAVSTNGRLRPIITVPLVVNKYTGSNGNTNVFHCANLGYFSGRGVDRNLRPESVPFKKNNVSSMLRKRHVIMTPLVDRLVKRIVGINSGEFEAEAVKRSVQNVLEDRDNPNLPKTVVLELVKHLGSSCASLTEEDVIYYLGPYAVLGDEVLSLLSTVGQAGVPWTAEGVASVIQDIIDDCELQFVGPEEPCLIQGQSVVEELFPSPGVPSLTVGKKRKIASLLSDLDL |
Interaction
Subunit
Homooligomers. Forms double-helical filaments necessary for the formation of replication compartments within the host nucleus. Interacts with the origin-binding protein. Interacts with the helicase primase complex; this interaction stimulates primer synthesis activity of the helicase-primase complex. Interacts with the DNA polymerase. Interacts with the alkaline exonuclease; this interaction increases its nuclease processivity.
Protein-protein interaction databases
Family & Domains
Sequence
- Sequence statusComplete
- Length1,132
- Mass (Da)125,409
- Last updated2006-03-21 v1
- ChecksumF71911132BCD0FF1
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AF148805 EMBL· GenBank· DDBJ | ABD28849.1 EMBL· GenBank· DDBJ | Genomic DNA |