Molecular weight (DA)
27kD
Immunogen
Synthesized peptide derived from human protein . at AA range: 100-180
Specificity
MDFIC Polyclonal Antibody detects endogenous levels of protein.
Formulation
Liquid in PBS containing 50% glycerol, and 0.02% sodium azide.
Dilution rate
WB 1:500-2000 ELISA 1:5000-20000
Purification process (Immunogen)
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Background
This gene product is a member of a family of proteins characterized by a specific cysteine-rich C-terminal domain, which is involved in transcriptional regulation of viral genome expression. Alternative translation initiation from an upstream non-AUG (GUG), and an in-frame, downstream AUG codon, results in the production of two isoforms, p40 and p32, respectively, which have different subcellular localization; p32 is mainly found in the cytoplasm, whereas p40 is targeted to the nucleolus. Both isoforms have transcriptional regulatory activity that is attributable to the cysteine-rich C-terminal domain. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009],
Function
domain:The cysteine-rich C-terminus is involved in its granular distribution in the cytoplasm.,function:Modulates the expression from both cellular and viral promoters. Down-regulates Tat-dependent transcription of the human immunodeficiency virus type 1 (HIV-1) LTR by interacting with HIV-1 Tat and Rev and impairing their nuclear import, probably by rendering the NLS domains inaccessible to importin-beta. Also stimulates activation of human T-cell leukemia virus type I (HTLV-I) LTR. Binds to the axin complex, resulting in an increase in the level of free beta-catenin. Affects axin regulation of the WNT and JNK signaling pathways.,similarity:Belongs to the MDFI family.,subcellular location:Isoform 1 localizes to the nucleolus and also shows a granular distribution in the cytoplasm. Isoform 2 is predominantly distributed throughout the cytoplasm, with only weak expression in the nucleus.,
Protein name
MyoD family inhibitor domain-containing protein (I-mfa domain-containing protein) (hIC)
Human protein sequence Database
Q9P1T7
Mouse protein sequence database
Q8BX65
Rat protein sequence database
Cellular localization
[Isoform 1]: Nucleus, nucleolus. Also shows a granular distribution in the cytoplasm.; [Isoform 2]: Cytoplasm . Weak expression in the nucleus.
Tissue expression
Expressed in lymphoid organs (spleen, thymus, peripheral blood leukocytes) as well as prostate, uterus and small intestine.