PTBP1 Antibody - #DF6644

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产品: PTBP1 抗体
货号: DF6644
描述: Rabbit polyclonal antibody to PTBP1
应用: WB IHC
文献验证: WB
反应: Human, Mouse, Rat
预测: Pig, Bovine, Horse, Sheep
分子量: 57kDa; 57kD(Calculated).
蛋白号: P26599
RRID: AB_2838606

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   规格 价格 库存
 50ul RMB¥ 1250 现货
 100ul RMB¥ 2300 现货
 200ul RMB¥ 3000 现货

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MS Report
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实验方案
WB Handbook
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产品描述

来源:
Rabbit
应用:
WB 1:500-1:2000, IHC 1:50-1:200
*The optimal dilutions should be determined by the end user.
*Tips:

WB: 适用于变性蛋白样本的免疫印迹检测. IHC: 适用于组织样本的石蜡(IHC-p)或冰冻(IHC-f)切片样本的免疫组化/荧光检测. IF/ICC: 适用于细胞样本的荧光检测. ELISA(peptide): 适用于抗原肽的ELISA检测.

反应:
Human, Mouse, Rat
预测:
Pig(100%), Bovine(%), Horse(%), Sheep(%)
克隆:
Polyclonal
特异性:
PTBP1 Antibody detects endogenous levels of total PTBP1.
RRID:
AB_2838606
引用格式: Affinity Biosciences Cat# DF6644, RRID:AB_2838606.
偶联:
Unconjugated.
纯化:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
保存:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
别名:

展开/折叠

57 kDa RNA binding protein PPTB 1; 57 kDa RNA-binding protein PPTB-1; Heterogeneous nuclear ribonucleoprotein I; Heterogeneous Nuclear Ribonucleoprotein Polypeptide I; hnRNP I; HNRNP-I; HNRNPI; HNRPI; MGC10830; MGC8461; Polypyrimidine tract binding protein (heterogeneous nuclear ribonucleoprotein I); Polypyrimidine Tract Binding Protein 1; Polypyrimidine tract binding protein; Polypyrimidine tract-binding protein 1; pPTB; PTB 1; PTB 2; PTB 3; PTB 4; PTB; PTB T; PTB1; PTB2; PTB3; PTB4; PTBP 1; PTBP1; PTBP1_HUMAN; PTBT; RNA Binding Protein;

抗原和靶标

免疫原:
Uniprot:

P26599(PTBP1_HUMAN) >>Visit HPA database.

基因/基因ID:
PTBP1(5725)
描述:
This gene belongs to the subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). The hnRNPs are RNA-binding proteins and they complex with heterogeneous nuclear RNA (hnRNA). These proteins are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene has four repeats of quasi-RNA recognition motif (RRM) domains that bind RNAs. This protein binds to the intronic polypyrimidine tracts that requires pre-mRNA splicing and acts via the protein degradation ubiquitin-proteasome pathway. It may also promote the binding of U2 snRNP to pre-mRNAs. This protein is localized in the nucleoplasm and it is also detected in the perinucleolar structure. Alternatively spliced transcript variants encoding different isoforms have been described.
序列:
MDGIVPDIAVGTKRGSDELFSTCVTNGPFIMSSNSASAANGNDSKKFKGDSRSAGVPSRVIHIRKLPIDVTEGEVISLGLPFGKVTNLLMLKGKNQAFIEMNTEEAANTMVNYYTSVTPVLRGQPIYIQFSNHKELKTDSSPNQARAQAALQAVNSVQSGNLALAASAAAVDAGMAMAGQSPVLRIIVENLFYPVTLDVLHQIFSKFGTVLKIITFTKNNQFQALLQYADPVSAQHAKLSLDGQNIYNACCTLRIDFSKLTSLNVKYNNDKSRDYTRPDLPSGDSQPSLDQTMAAAFGLSVPNVHGALAPLAIPSAAAAAAAAGRIAIPGLAGAGNSVLLVSNLNPERVTPQSLFILFGVYGDVQRVKILFNKKENALVQMADGNQAQLAMSHLNGHKLHGKPIRITLSKHQNVQLPREGQEDQGLTKDYGNSPLHRFKKPGSKNFQNIFPPSATLHLSNIPPSVSEEDLKVLFSSNGGVVKGFKFFQKDRKMALIQMGSVEEAVQALIDLHNHDLGENHHLRVSFSKSTI

种属预测

种属预测:

score>80的预测可信度较高，可尝试用于WB检测。*预测模型主要基于免疫原序列比对，结果仅作参考，不作为质保凭据。

Species
Results
Score
Pig
100
Horse
100
Bovine
100
Sheep
100
Dog
0
Xenopus
0
Zebrafish
0
Chicken
0
Rabbit
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

研究背景

功能:

Plays a role in pre-mRNA splicing and in the regulation of alternative splicing events. Activates exon skipping of its own pre-mRNA during muscle cell differentiation. Binds to the polypyrimidine tract of introns. May promote RNA looping when bound to two separate polypyrimidine tracts in the same pre-mRNA. May promote the binding of U2 snRNP to pre-mRNA. Cooperates with RAVER1 to modulate switching between mutually exclusive exons during maturation of the TPM1 pre-mRNA. Represses the splicing of MAPT/Tau exon 10. In case of infection by picornaviruses, binds to the viral internal ribosome entry site (IRES) and stimulates the IRES-mediated translation.

细胞定位:

Nucleus.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
亚基结构:

Monomer. Part of a ternary complex containing KHSRP, PTBP1, PTBP2 and HNRPH1. Interacts with RAVER1 and SFPQ.

文献引用

1). PTBP1 knockdown promotes neural differentiation of glioblastoma cells through UNC5B receptor. Theranostics, 2022 (PubMed: 35664063) [IF=12.4]

Application: WB    Species: Human    Sample: sh-Luci and sh-PTBP1-3 U251 cells

Figure 1 PTBP1 knockdown reprograms glioblastoma cells into a neural differentiation state. (A) Knockdown efficiency of three different sh-PTBP1 lentiviruses detected by qRT-PCR (n = 3). (B) Western blot analysis of PTBP1 protein in sh-Luci and sh-PTBP1-3 U251 cells (n = 3). GAPDH was used as an internal reference protein. (C) The scheme of cell reprogramming. More than 90% of U251 (D, G), U87 (E, H), KNS89 (F, I) cells expressed neuron markers (TUJ1 and MAP2) at 14 dpi (9 random fields from triplicate samples were captured for quantification; 829 U251, 204 U87 and 540 KNS89 cells (M-cherry+) were tracked per field in sh-Luci group; 164 U251, 20 U87 and 166 KNS89 cells (M-cherry+) were tracked per field in sh-PTBP1 group). The data are presented as mean ± SD. **P < 0.01, ***P < 0.001 vs. sh-Luci group. GM: glioblastoma cell medium; ND: not detected; NM: neuronal induction medium. Scale: 100 µm.
2). LncRNA HCP5 Facilitates the Progression of Ovarian Cancer by Interacting with the PTBP1 Protein. Biochemical genetics, 2024 (PubMed: 38071681) [IF=2.1]

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