CD45,白细胞共同抗原抗体

产品编号HZ-4820R
英文名称CD45
中文名称白细胞共同抗原抗体
别 名B220; CD 45; CD45; cd45 antigen; ec3.1.3.48; CD45R; GP180; GP180; GP 180; L CA; LCA; L-CA; Leukocyte common antigen; LY5; Protein tyrosine phosphatase receptor type C; Protein tyrosine phosphatase receptor type c polypeptide; protein tyrosine phosphatase, receptor type, C; Receptor-type tyrosine-protein phosphatase C; PTPRC; PTPRC_HUMAN; SCID due to PTPRC deficiency; T200; T200 glycoprotein; T200 leukocyte common antigen; Human homolog of severe combined immunodeficiency due to PTPRC deficiency.
说 明 书0.1ml 0.2ml
研究领域肿瘤 细胞生物 免疫学 神经生物学 信号转导 干细胞 转录调节因子 细胞表面分子 淋巴细胞 t-淋巴细胞 b-淋巴细胞
抗体来源Rabbit
克隆类型Polyclonal
交叉反应Human,
CD45,白细胞共同抗原抗体产品应用WB=1:100-500 ELISA=1:500-1000 IHC-P=1:100-500 IHC-F=1:100-500 Flow-Cyt=1:20-400 IF=1:50-200 （石蜡切片需做抗原修复）
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.
分 子 量145kDa
细胞定位细胞膜
性 状Lyophilized or Liquid
浓 度1mg/1ml
免 疫 原KLH conjugated synthetic peptide derived from human CD45/B220
亚 型IgG
纯化方法affinity purified by Protein A
储 存 液0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.
保存条件Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C.
CD45,白细胞共同抗原抗体PubMedPubMed
产品介绍background:
CD45 is a family of single chain transmembraneous glycoproteins consisting of at least four isoforms (220, 205, 190, 180 kDa) which share a common large intracellular domain. Their extracellular domains are heavily glycosylated. The different isoforms are produced by alternative messenger RNA splicing of three exons of a single gene on chromosome 1. CD45 is expressed on cells of the human hematopoietic lineage (including hematopoietic stem cells) with the exception of mature red cells. It is not detected on differentiated cells of other tissues. It is likely that CD45 plays an important role in signal transduction, inhibition or upregulation of various immunological functions. Antibodies recognising a common epitope on all of the isoforms are termed CD45 whilst those recognising only individual isoforms are termed CD45RA or CD45RO etc.

Function:
Protein tyrosine-protein phosphatase required for T-cell activation through the antigen receptor. Acts as a positive regulator of T-cell coactivation upon binding to DPP4. The first PTPase domain has enzymatic activity, while the second one seems to affect the substrate specificity of the first one. Upon T-cell activation, recruits and dephosphorylates SKAP1 and FYN. Dephosphorylates LYN, and thereby modulates LYN activity.

Subunit:
Binds GANAB and PRKCSH. Interacts with SKAP1. Interacts with DPP4; the interaction is enhanced in a interleukin-12-dependent manner in activated lymphocytes.

Subcellular Location:
Membrane; Single-pass type I membrane protein. Membrane raft. Note=Colocalized with DPP4 in membrane rafts.

Post-translational modifications:
Heavily N- and O-glycosylated.

DISEASE:
Defects in PTPRC are a cause of severe combined immunodeficiency autosomal recessive T-cell-negative/B-cell-positive/NK-cell-positive (T(-)B(+)NK(+) SCID) [MIM:608971]. A form of severe combined immunodeficiency (SCID), a genetically and clinically heterogeneous group of rare congenital disorders characterized by impairment of both humoral and cell-mediated immunity, leukopenia, and low or absent antibody levels. Patients present in infancy recurrent, persistent infections by opportunistic organisms. The common characteristic of all types of SCID is absence of T-cell-mediated cellular immunity due to a defect in T-cell development.
Genetic variations in PTPRC are involved in multiple sclerosis susceptibility (MS) [MIM:126200]. MS is a neurodegenerative disorder characterized by the gradual accumulation of focal plaques of demyelination particularly in the periventricular areas of the brain. Peripheral nerves are not affected. Onset usually in third or fourth decade with intermittent progression over an extended period. The cause is still uncertain.

CD45,白细胞共同抗原抗体Similarity:
Belongs to the protein-tyrosine phosphatase family. Receptor class 1/6 subfamily.
Contains 2 fibronectin type-III domains.
Contains 2 tyrosine-protein phosphatase domains.

Gene ID:
5788

Database links:
Entrez Gene: 5788 Human
Entrez Gene: 19264 Mouse
Omim: 151460 Human
SwissProt: P08575 Human
SwissProt: P06800 Mouse
Unigene: 654514 Human
Unigene: 391573 Mouse

Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.

CD45在活化信号转导中起到调节作用 在确定CD45为一种PTPase之前就已证实了CD45参于细胞的活化和生长调节。
抗CD45抗体可以抑制PHA或CD3交联所介导的T细胞增殖，还可抑制NK或细胞毒性T细胞对靶细胞的杀伤，抑制经CD2、CD3以及CD8膜分子介导的信号转导作用。
白细胞共同抗原是五种或更多的高分子量糖蛋白组成的蛋白家族，主要位于白细胞表面，包括T、B淋巴细胞、多形核白细胞、单核细胞等，而在红细胞、血小板及非造血系统中不表达。因此是区分淋巴瘤/白血病和非造血组织肿瘤（如未分化小细胞癌、小圆细胞肉瘤）的特异性标记物。该抗体主要用于淋巴瘤和未分化小细胞癌的鉴别诊断。

产品图片

Tissue/cell: human breast carcinoma; 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-CD45/B220(human) Polyclonal Antibody, Unconjugated(HZ-4820R) 1:200, overnight at 4°C, followed by conjugation to the secondary antibody(SP-0023) and DAB(C-0010) staining