Product Name | NFκB-p65(Phospho-Ser276) Antibody |
Host Species | Rabbit |
Clonality | Polyclonal |
Purification | Antibodies were produced by immunizing rabbits with synthetic phosphopeptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific phosphopeptide. Non-phospho specific antibodies were removed by chromatogramphy using non-phosphopeptide. |
Applications | WB IHC IF |
Reactivity | Hu Ms Rt |
Specificity | The antibody detects endogenous level of NFκB-p65 only when phosphorylated at serine 276. |
Immunogen | Peptide-KLH. Peptide sequence around phosphorylation site of serine 276(R-P-S(p)-D-R) derived from Human NFκB-p65. |
Target Name | NFkB-p65 |
Alternative Name | p65, NFKB3 |
Modification | Phospho-Ser276 |
SDS-PAGE MW | 65kd |
Accession No | Q04206; NP_001138610.1 |
Concentration | 1.0mg/ml |
Formulation | Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. |
Storage | Store at -20°C for long term preservation (recommended). Store at 4°C for a short term use. |
Application Western blotting: 1:500~1:1000 Immunohistochemistry: 1:50~1:100 Immunofluorescence: 1:100~1:200
Background
NF-kappa-B is a pleiotropic transcription factor present in almost all cell types and is the endpoint of a series of signal transduction events that are initiated by a vast array of stimuli related to many biological processes such as inflammation, immunity, differentiation, cell growth, tumorigenesis and apoptosis. NF-kappa-B is a homo- or heterodimeric complex formed by the Rel-like domain-containing proteins RELA/p65, RELB, NFKB1/p105, NFKB1/p50, REL and NFKB2/p52 and the heterodimeric p65-p50 complex appears to be most abundant one. The dimers bind at kappa-B sites in the DNA of their target genes and the individual dimers have distinct preferences for different kappa-B sites that they can bind with distinguishable affinity and specificity. Different dimer combinations act as transcriptional activators or repressors, respectively. NF-kappa-B is controlled by various mechanisms of post-translational modification and subcellular compartmentalization as well as by interactions with other cofactors or corepressors. NF-kappa-B complexes are held in the cytoplasm in an inactive state complexed with members of the NF-kappa-B inhibitor (I-kappa-B) family. In a conventional activation pathway, I-kappa-B is phosphorylated by I-kappa-B kinases (IKKs) in response to different activators, subsequently degraded thus liberating the active NF-kappa-B complex which translocates to the nucleus. NF-kappa-B heterodimeric p65-p50 and p65-c-Rel complexes are transcriptional activators. The NF-kappa-B p65-p65 complex appears to be involved in invasin-mediated activation of IL-8 expression. The inhibitory effect of I-kappa-B upon NF-kappa-B the cytoplasm is exerted primarily through the interaction with p65. p65 shows a weak DNA-binding site which could contribute directly to DNA binding in the NF-kappa-B complex. Associates with chromatin at the NF-kappa-B promoter region via association with DDX1.
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求问酶切体系为10ul,内切酶1ul,37℃水浴45min,不知道DNA产物是否完全被切开了?
所用内切酶信息如下
配后是否应该分装,因为不能反复冻融?
多谢!
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【】可以这样输入,智能ABC,输入“v1”,后翻3页,就可以看见了,或用紫光拼音中文输入法,输入方括号就是粗体的中括号,实在不行请复制本公告中【】
同一管dna有的酶可以切开,比如dra1,ecoR1,Hind111
有的酶又完全不能切动,如BamH1,sac1,xba1,xho1,pst1
请问高手这是什么原因??
我做的双酶切反应,酶分别是宝生物的BamHI和XhoI,双酶切体系是:载体及目的片段分别是30ul,通用buffer4ul,XhoI、BamHI各2ul,无核酶水2ul,总体积40ul。载体和目的片段都是经37度酶切6h。载体上面这两个酶切位点的距离是6个碱基,目的片段是由pcr反应获得的,从puc19中p出来的,两端带有这两种酶的酶切位点,酶切完成后,做连接反应,体系如下:目的片段(全长1441bp)4ul,无核酶水3ul,10*T4DNA连接酶缓冲液1ul,载体1ul,T4DNA连接酶1ul,总体积10ul。16度过夜。之后摇菌送沉菌测序结果回来,送了5管一个都不对。重复实验两次还是不对!
之后改为先用BanHI单切载体,体系如下:载体17ul,酶1ul,buffer2ul,总体积20ul,30度切6小时后,Promega纯化试剂盒直接纯化,完了之后再用XhoI,37度酶切6小时,体系如上,再次用promega纯化试剂盒纯化,目的片段用双酶切体系酶切,之后做连接反应,之后铺板,挑取菌落共10个,摇菌13小时,取菌液做pcr鉴定,结果10个菌落全是引物2聚体,跑出来的条带都是100bp左右。
各位老师这是怎么回事呢?为什么连接不上呢?小弟先谢过各位大哥了!
感谢赐教~!