Product Name	Musashi 1
Chinese Name	神经Stem cellsRNABinding proteinMusashi1抗体
Alias	Musashi 1 / Msi1; Msi 1; Msi1; Msi-1; MSI1H_HUMAN; Musashi homolog 1; Musashi-1; Musashi1; RNA binding protein Musashi homolog 1; RNA-binding protein Musashi homolog 1.
Research Area	Tumour  Neurobiology  Stem cells
Immunogen Species	Rabbit
Clonality	Polyclonal
React Species	Mouse, Rat,  (predicted: Human, Chicken, Dog, Pig, Cow, Rabbit, )
Applications	IHC-P=1:100-500 IHC-F=1:100-500 ICC=1:100-500 IF=1:100-500 （Paraffin sections need antigen repair） not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user.
Theoretical molecular weight	39kDa
Cellular localization	The nucleus cytoplasmic
Form	Liquid
Concentration	1mg/ml
immunogen	KLH conjugated synthetic peptide derived from human Musashi 1: 66-150/362
Lsotype	IgG
Purification	affinity purified by Protein A
Buffer Solution	0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.
Storage	Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles.
Attention	This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
PubMed	PubMed
Product Detail	Musashi1 (Msi1) is an RNA-binding protein expressed in neural progenitor cells and neural stem cells. Msi1 is the mammalian homolog of Drosophila Musashi. The gene encoding human Msi1 encodes a 362 amino acid protein. In murine embryonic neural progenitor cells, Msi1 localizes to the cytoplasm and is downregulated during differentiation. Msi1 binds to NUMB, which encodes a membrane-associated antagonist of Notch signaling. Msi1 appears to function in the proliferation and maintenance of stem cell populations of the central nervous system. In addition to its usefulness as a marker for neural progenitor cells in normal human brains, Msi1 is also a marker for human gliomas. In rats, Msi1 is expressed in Sertoli cells of the testis and granulosa cells of the ovary. Function: RNA binding protein that regulates the expression of target mRNAs at the translation level. Regulates expression of the NOTCH1 antagonist NUMB. Binds RNA containing the sequence 5'-GUUAGUUAGUUAGUU-3' and other sequences containing the pattern 5'-[GA]U(1-3)AGU-3'. May play a role in the proliferation and maintenance of stem cells in the central nervous system. Subcellular Location: Cytoplasm. Nucleus. Tissue Specificity: Detected in fetal kidney, brain, liver and lung, and in adult brain and pancreas. Detected in hepatoma cell lines. Similarity: Belongs to the Musashi family. Contains 2 RRM (RNA recognition motif) domains. SWISS: O43347 Gene ID: 4440 Database links: Entrez Gene: 4440 Human Entrez Gene: 17690 Mouse Entrez Gene: 259272 Rat Omim: 603328 Human SwissProt: O43347 Human SwissProt: Q61474 Mouse SwissProt: Q8K3P4 Rat Unigene: 158311 Human Unigene: 5077 Mouse Unigene: 162146 Rat Musashi1是一种进化保守的RNABinding protein，在维持Stem cells状态、分化和Tumour发生方面起着重要作用。Musashi1 选择性地表达在神经前体细胞上,包括神经Stem cells上。在神经系统外，Musashi1还是肠Stem cells的选择性标记。这些组织Stem cells或未成熟细胞Musashi1的表达，表明Musashi1在转录后基因调节阶段维持这些细胞未分化状态起重要作用。Musashi1过度表达通过依赖RBP2Jk的旁路激活Notch1，而Notch信号途径功能为诱导哺乳动物神经Stem cells自我更新。通过musashi1-P-小鼠培养脑细胞的Musashi蛋白产物反义去除研究,发现这些基因在维持神经Stem cells未分化状态起着重要的作用。 Musashi抑制m-Numb转录的分子机制尚待进一步研究。Musashi1有可能除转录调控外还参与其他调控途径。另外，Musashi1还表达在一些脑Tumour的特殊类型(这些Tumour可能起源自非成熟脑细胞)，并且表达水平和Tumour的恶性程度及增殖能力相关。
Product Picture	Paraformaldehyde-fixed, paraffin embedded (rat pancreas); Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15min; Block endogenous peroxidase by 3% hydrogen peroxide for 20 minutes; Blocking buffer (normal goat serum) at 37°C for 30min; Antibody incubation with (Musashi 1) Polyclonal Antibody, Unconjugated (SL11201R) at 1:200 overnight at 4°C, followed by operating according to SP Kit(Rabbit) (sp-0023) instructionsand DAB staining. Tissue/cell: mouse pancreas tissue; 4% Paraformaldehyde-fixed and paraffin-embedded; Antigen retrieval: citrate buffer ( 0.01M, pH 6.0 ), Boiling bathing for 15min; Block endogenous peroxidase by 3% Hydrogen peroxide for 30min; Blocking buffer (normal goat serum,C-0005) at 37℃ for 20 min; Incubation: Anti-Musashi-1 Polyclonal Antibody, Unconjugated(SL11201R) 1:200, overnight at 4°C, followed by conjugation to the secondary antibody(SP-0023) and DAB(C-0010) staining Tissue/cell: mouse brain tissue; 4% Paraformaldehyde-fixed and paraffin-embedded; Antigen retrieval: citrate buffer ( 0.01M, pH 6.0 ), Boiling bathing for 15min; Block endogenous peroxidase by 3% Hydrogen peroxide for 30min; Blocking buffer (normal goat serum,C-0005) at 37℃ for 20 min; Incubation: Anti-Musashi-1 Polyclonal Antibody, Unconjugated(SL11201R) 1:200, overnight at 4°C, followed by conjugation to the secondary antibody(SP-0023) and DAB(C-0010) staining SH-SY5Y cell; 4% Paraformaldehyde-fixed; Triton X-100 at room temperature for 20 min; Blocking buffer (normal goat serum, C-0005) at 37°C for 20 min; Antibody incubation with (Musashi 1) polyclonal Antibody, Unconjugated (SL11201R) 1:100, 90 minutes at 37°C; followed by a conjugated Goat Anti-Rabbit IgG antibody at 37°C for 90 minutes, DAPI (blue, C02-04002) was used to stain the cell nuclei.

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