Barrier-to-autointegration factor (O75531)

Uniprot ID O75531
Protein Name Barrier-to-autointegration factor
Gene Name BANF1
Species Homo sapiens (Human)
Signal peptide(a) N Secretome P(b) 0.726
Function Plays fundamental roles in nuclear assembly, chromatin organization, gene expression and gonad development. May potently compress chromatin structure and be involved in membrane recruitment and chromatin decondensation during nuclear assembly. Contains 2 non-specific dsDNA-binding sites which may promote DNA cross-bridging. .(Microbial infection) Exploited by retroviruses for inhibiting self-destructing autointegration of retroviral DNA, thereby promoting integration of viral DNA into the host chromosome. EMD and BAF are cooperative cofactors of HIV-1 infection. Association of EMD with the viral DNA requires the presence of BAF and viral integrase. The association of viral DNA with chromatin requires the presence of BAF and EMD. {ECO:0000269|PubMed:11005805, ECO:0000269|PubMed:16680152}.(Microbial infection) In case of poxvirus infection, has an antiviral activity by blocking viral DNA replication. {ECO:0000269|PubMed:18005698}.
GO - Molecular function
  • DNA binding : IEA:UniProtKB-KW
  • enzyme binding : IPI:UniProtKB
  • identical protein binding : IPI:IntAct
  • LEM domain binding : IMP:UniProtKB
  • protein C-terminus binding : IMP:UniProtKB
  • protein homodimerization activity : IPI:UniProtKB
  • protein N-terminus binding : IPI:UniProtKB
GO - Biological process
  • establishment of integrated proviral latency : TAS:Reactome
  • mitotic nuclear envelope reassembly : TAS:Reactome
  • negative regulation of viral genome replication : IDA:UniProtKB
  • nuclear transport : TAS:Reactome
  • response to virus : TAS:ProtInc
Back
(a) The Signal peptide D-score cutoff for "YES"(having signal peptide) is 0.45.
(b) Non-classically secreted proteins should obtain an NN-score(Neural Networks score) exceeding the normal threshold of 0.5, but not at the same time be predicted to contain a signal peptide.