Recombinant Human Barrier-to-autointegration factor (BANF1)

Uniprot Id

O75531

Target Species

Human

Target Name

BANF1

Target Full Name

Barrier-to-autointegration factor

Target 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.; (Microbial infection) In case of poxvirus infection, has an antiviral activity by blocking viral DNA replication.

Target Involvement

Nestor-Guillermo progeria syndrome (NGPS)

Target Subcellular Location

[Barrier-to-autointegration factor]: Nucleus. Cytoplasm. Chromosome. Nucleus envelope.

Target Protein Families

BAF family

Target Tissue Specificity

Widely expressed. Expressed in colon, brain, heart, kidney, liver, lung, ovary, pancreas, placenta, prostate, skeletal muscle, small intestine, spleen and testis. Not detected in thymus and peripheral blood leukocytes.

Target Synonyms

BAF; BAF_HUMAN; BANF 1; BANF1; Barrier to autointegration factor 1; Barrier to autointegration factor; Barrier-to-autointegration factor; BCRG 1; BCRG1; BCRP 1; BCRP1; Breakpoint cluster region protein 1; D14S1460; MGC111161; NGPS

Target Background

The protein encoded by this gene was first identified by its ability to protect retroviruses from intramolecular integration and therefore promote intermolecular integration into the host cell genome. The protein forms a homodimer which localizes to both the nucleus and cytoplasm and is specifically associated with chromosomes during mitosis. This protein binds to double stranded DNA in a non-specific manner and also binds to LEM-domain containing proteins of the nuclear envelope. This protein is thought to facilitate nuclear reassembly by binding with both DNA and inner nuclear membrane proteins and thereby recruit chromatin to the nuclear periphery. Alternative splicing results in multiple transcript variants encoding the same protein.