ChIP
H
Endogenous
Rabbit IgG
#P78347
2969
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Chromatin IP | 1:50 |
Storage
Specificity / Sensitivity
Species Reactivity:
Human
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Val263 of human TFII-I protein.
Background
TFII-I (also known as SPIN and BAP-135) is a multifunctional transcription factor that facilitates basal transcriptional machinery assembly at the core promotor region, as well as the assembly of the transcriptional activator complex at upstream regulatory sites (1). Four isoforms of TFII-I (alpha, beta, gamma, and delta) form homo- or heteromeric complexes, which may perform different functions on different promoters (1). In B cells, cross-linking of BCR (B cell receptors) leads to TFII-I phosphorylation at Tyr248 by Btk (2). This phosphorylation disrupts the association of Btk and TFII-I and enhances TFII-I transcriptional activity and nuclear localization (2). In nonlymphoid cells, TFII-I is phosphorylated at Tyr248 by Src dependent kinase or JAK2 (3,4). PKG (cGMP-dependent kinase) interacts with and phosphorylates TFII-I at Ser371 and 743, which also promotes TFII-I transcription activity (5). TFII-I activity is also modulated by HDAC3 (Histone Deacetylase 3) through a physical interaction between the two proteins (6).
- Roy, A.L. (2001) Gene 274, 1-13.
- Novina, C. D. et al. (1999) Mol. Cell. Biol. 19, 5014-5024.
- Kim, D. and Cochran, B.H. (2001) Mol. Cell. Biol. 21, 3387-3397.
- Cheriyath, V. et al. (2002) J. Biol. Chem. 277, 22798-22805.
- Casteel, D. E. et al. (2002) J. Biol. Chem. 277, 32003-32014.
- Wen, Y. et al. (2003) J. Biol. Chem. 278, 1841-1847.
Species Reactivity
Species reactivity is determined by testing in at least one approved application (e.g., western blot).
Applications Key
ChIP: Chromatin IP
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
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