CD74,CD74抗体

产品编号HZ-2518R
英文名称CD74
中文名称CD74抗体
别 名CD 74; CD74; CD74 antigen; CD74 molecule; CLIP; DHLAG; Gamma chain of class II antigens; HG2A_HUMAN; HLA class II histocompatibility antigen gamma chain; HLA DR antigens associated invariant chain; HLA DR gamma; HLA-DR antigens-associated invariant chain; HLA-DR-gamma; HLADG; HLADR antigens associated invariant chain; Ia antigen associated invariant chain; Ia antigen-associated invariant chain; Ia associated invariant chain; Ia gamma; Ii; Invariant polypeptide of major histocompatibility complex class II antigen associated; la-gamma; Major histocompatibility complex class II invariant chain; MHC HLA DR gamma chain; MHC HLA-DR gamma chain; p33; p35; Protein 41.
说 明 书0.1ml 0.2ml
研究领域肿瘤 免疫学 细胞表面分子 细胞类型标志物 淋巴细胞 t-淋巴细胞 b-淋巴细胞
抗体来源Rabbit
克隆类型Polyclonal
CD74,CD74抗体交叉反应Human, Mouse, Rat,
产品应用WB=1:100-500 ELISA=1:500-1000 IHC-P=1:100-500 IHC-F=1:100-500 Flow-Cyt=1:20-500 IF=1:100-500 （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34kDa
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 CD74
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.
CD74,CD74抗体PubMedPubMed
产品介绍background:
CD74, also known as the MHC class II associated invariant chain (Ii), is a type II transmembrane protein which binds to the peptide binding groove of newly synthesized MHC class II alpha/beta heterodimers and prevents their premature association with endogenous polypeptides. CD74 is produced in molar excess over MHC class II and some of this is expressed by an unknown pathway on the cell surface independent of, or in association with, MHC class II molecules. The half life of CD74 on the cell surface is only 3 to 4 min after which it is internalized. It has been proposed that cell surface CD74 binds The protein encoded by this gene associates with class II major histocompatibility complex (MHC) and is an important chaperone that regulates antigen presentation for immune response. It also serves as cell surface receptor for the cytokine macrophage migration inhibitory factor (MIF) which, when bound to the encoded protein, initiates survival pathways and cell proliferation. This protein also interacts with amyloid precursor protein (APP) and suppresses the production of amyloid beta (Abeta). Multiple alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Aug 2011]

Function:
Plays a critical role in MHC class II antigen processing by stabilizing peptide-free class II alpha/beta heterodimers in a complex soon after their synthesis and directing transport of the complex from the endoplasmic reticulum to the endosomal/lysosomal system where the antigen processing and binding of antigenic peptides to MHC class II takes place. Serves as cell surface receptor for the cytokine MIF.

Subunit:
Homotrimer. In the endoplasmic reticulum (ER) it forms a heterononameric MHC II-Ii complex: 3 MHC class II molecules (heterodimers of an alpha and a beta subunit) bind to the CD74 homotrimer (also known as invariant chain or HLA class II histocompatibility antigen gamma chain). In the endosomal/lysosomal system, the CD74 component undergoes sequential degradation by various proteases, including CTSS and CTSL, leaving a small fragment termed CLIP (class-II-associated invariant chain peptide) attached to the MHC class II molecule (alpha-beta-CLIP complex). This processed complex interacts with HLA_DM and HLA_DO heterodimers in order to release CLIP and facilitate the binding of antigenic peptides to the MHC class II molecules.

Subcellular Location:
Cell membrane; Single-pass type II membrane protein (Potential). Endoplasmic reticulum membrane. Golgi apparatus, trans-Golgi network. Endosome. Lysosome. Note=Transits through a number of intracellular compartments in the endocytic pathway. It can either undergo proteolysis or reach the cell membrane.

CD74,CD74抗体Post-translational modifications:
N- and O-glycosylated. O-glycosylated with core 1 or possibly core 8 glycans.

DISEASE:
Note=A chromosomal aberration involving CD74 is found in a non-small cell lung tumor. Results in the formation of a CD74-ROS1 chimeric protein.

Similarity:
Contains 1 thyroglobulin type-1 domain.

Gene ID:
972

Database links:
Entrez Gene: 972 Human
Entrez Gene: 16149 Mouse
Omim: 142790 Human
SwissProt: P04233 Human
SwissProt: P04441 Mouse
Unigene: 436568 Human

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

CD74表达于所有B细胞和某些T细胞亚类（MHC II阳性），具有几种异构体形式（33，35和41kDa），是HLA-DR的恒定链。该抗体主要用于标记生发中心及外套B细胞（80%）和R-S细胞（70%）以及少数T细胞（20%），常与其它B细胞标记如CD20或CD45RA联合检测，用于B细胞淋巴瘤的辅助诊断。

产品图片