Western Blotting (WB), Immunohistochemistry (Paraffin-embedded Sections) (IHC (p))
特异性
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific phosphopeptide. The antibody against non-phosphopeptide was removed by chromatography using non-phosphopeptide corresponding to the phosphorylation site. CREB (phospho-Ser133) antibody detects endogenous levels of CREB only when phosphorylated at serine 133.
纯化方法
Immunoaffinity chromatography.
免疫原
The antiserum was produced against synthesized phosphopeptide derived from human CREB around the phosphorylation site of serine 133 (R-P-SP-Y-R).
Suitable for use in Western blot (1: 500approx. 1: 1000) and Immunohistochemistry (1: 50approx. 1: 100). Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
限制
仅限研究用
浓度
1.0 mg/mL
缓冲液
Phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150 mM NaCl, 0.02 % Sodium Azide and 50 % glycerol.
储存液
Sodium azide
注意事项
This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
注意事项
Avoid repeated freezing and thawing.
储存条件
-20 °C
储存方法
Store the antibody (in aliquots) at -20 °C.
抗原
CREB1
(cAMP Responsive Element Binding Protein 1 (CREB1))
Cyclic AMP Response Element Binding protein (CREB) is a basic / leucine zipper transcription factor that binds the cyclic AMP response element (CRE) and activates transcription in response to a variety of extracellular signals including neurotransmitters, hormones, membrane depolarization, and growth and neurotrophic factors. Activation of CREB is dependent upon the phosphorylation of serine 133. Phosphorylation occurs via p44 / 42 MAP kinase and p90RSK and also via p38 MAP kinase and MSK 1. Although CREB will bind DNA independent of its phosphorylation state, only the phosphorylated form is competent as a transcription factor. CREB binding protein (CBP), a transcriptional coactivator that directly interacts with CREB, binds to CREB in the region of serine 133. CREB appears to play an important role in learning and memory. CREB knock out mice show diminished learning ability.Synonyms: CREB-1, Cyclic AMP-responsive element-binding protein 1, cAMP-responsive element-binding protein 1