Cell Signaling Technology

Product Pathways - Nuclear Receptor Signaling

SRC-1 (D1M3Y) Rabbit mAb #20301

No. Size Price
20301S 100 µl ( 10 western blots ) ¥3,250.00 现货查询 购买询价
20301 carrier free & custom formulation / quantityemail request
Applications Dilution Species-Reactivity Sensitivity MW (kDa) Isotype
W 1:1000 Human,Mouse,Rat,Monkey, Endogenous 180 Rabbit IgG
ChIP 1:50

Species cross-reactivity is determined by western blot.

Applications Key: W=Western Blotting, ChIP=Chromatin IP,

Specificity / Sensitivity

SRC-1 (D1M3Y) Rabbit mAb recognizes endogenous levels of total SRC-1 protein.

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ala12 of human SRC-1 protein.

Western Blotting

Western Blotting

Western blot analysis of extracts from various cell lines using SRC-1 (D1M3Y) Rabbit mAb.

Chromatin IP

Chromatin IP

Chromatin immunoprecipitations were performed with cross-linked chromatin from 4 x 106 LS180 cells treated with calcitriol (10nM, 3 hours) and either 10 μl of SRC-1 (D1M3Y) Rabbit mAb or 2 μl of Normal Rabbit IgG #2729 using SimpleChIP® Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. The enriched DNA was quantified by real-time PCR using SimpleChIP® Human c-Fos Upstream Primers #25661, human UCA1 promoter primers, and SimpleChIP® Human Nanog Promoter Primers #95064. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.

Background

There are three members of the steroid receptor co-activator (SRC) family of proteins: SRC-1 (NCoA-1), SRC-2 (TIF2/GRIP1/NCoA-2), and SRC-3 (ACTR/pCIP/RAC3/TRAM-1/AIB1). All SRC family members share significant structural homology and function to stimulate transcription mediated by nuclear hormone receptors and other transcriptional activators such as Stat3, NF-κB, E2F1, and p53 (1-4). Two SRC proteins, SRC-1 and SRC-3, function as histone acetyltransferases (5,6). In addition, all three family members can recruit other histone acetyltransferases (CBP/p300, PCAF) and histone methyltransferases (PRMT1, CARM1) to target promoters and cooperate to enhance expression of many genes (5-8). The SRC proteins play important roles in multiple physiological processes including cell proliferation, cell survival, somatic cell growth, mammary gland development, female reproductive function, and vasoprotection (9). SRC-1 and SRC-3 are conduits for kinase-mediated growth factor signaling to the estrogen receptor and other transcriptional activators. Seven SRC-1 phosphorylation sites and six SRC-3 phosphorylation sites have been identified, which are induced by steroids, cytokines, and growth factors and involve multiple kinase signaling pathways (9-11). Research has shown that all three SRC family members are associated with increased activity of nuclear receptors in breast, prostate, and ovarian carcinomas. According to the literature, SRC-3 is frequently amplified or overexpressed in a number of cancers (12), and SRC-1/PAX3 and SRC-2/MYST3 translocations are found associated with rhabdomyosarcoma and acute myeloid leukemia, respectively (13,14).

  1. Giraud, S. et al. (2002) J. Biol. Chem. 277, 8004-8011.
  2. Na, S.Y. et al. (1998) J. Biol. Chem. 273, 10831-10834.
  3. Louie, M.C. et al. (2004) Mol. Cell Biol. 24, 5157-5171.
  4. Lee, S.K. et al. (1999) Mol. Endocrinol. 13, 1924-1933.
  5. Spencer, T.E. et al. (1997) Nature 389, 194-198.
  6. Chen, H. et al. (1997) Cell 90, 569-580.
  7. Koh, S.S. et al. (2001) J. Biol. Chem. 276, 1089-1098.
  8. Chen, D. et al. (1999) Science 284, 2174-2177.
  9. Wu, R.C. et al. (2004) Mol. Cell 15, 937-949.
  10. Rowan, B.G. et al. (2000) J. Biol. Chem. 275, 4475-4483.
  11. Zhou, H.J. et al. (2005) Cancer Res. 65, 7976-7983.
  12. Torres-Arzayus, M.I. et al. (2004) Cancer Cell 6, 263-274.
  13. Wachtel, M. et al. (2004) Cancer Res. 64, 5539-5545.
  14. Deguchi, K. et al. (2003) Cancer Cell 3, 259-271.

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For Research Use Only. Not For Use In Diagnostic Procedures.

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