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anti-DQA1 antibody :: Rabbit anti-Human HLA class II histocompatibility antigen, DQ alpha 1 chain Polyclonal Antibody

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Catalog # MBS1488565
Unit / Price
  0.05 mg  /  $160 +1 FREE 8GB USB
  0.1 mg  /  $235 +1 FREE 8GB USB
anti-DQA1 antibody
Product Name

HLA class II histocompatibility antigen, DQ alpha 1 chain (DQA1), Polyclonal Antibody

Popular Item
Also Known As

Rabbit anti-human HLA class II histocompatibility antigen, DQ alpha 1 chain polyclonal Antibody, HRP conjugated

Product Synonym Names
DC-1 alpha chain; DC-alpha; HLA-DCA; MHC class II DQA1
Research Use Only
For Research Use Only. Not for use in diagnostic procedures.
Immunogen Sequence Length
255
OMIM
146880
3D Structure
ModBase 3D Structure for P01909
Clonality
Polyclonal
Isotype
IgG
Host
Rabbit
Species Reactivity
Human
Purity/Purification
Caprylic Acid Ammonium Sulfate Precipitation Purified
Storage Buffer
Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, PH 7.4
Conjugate
HRP
Immunogen
Recombinant human HLA class II histocompatibility antigen, DQ alpha 1 chain
Preparation and Storage
Shipped at 4 degree C. Upon delivery aliquot and store at -20 degree C or -80 degree C. Avoid repeated freeze.
ISO Certification
Manufactured in an ISO 9001:2008 Certified Laboratory.
Other Notes
Small volumes of anti-DQA1 antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.
Related Product Information for
anti-DQA1 antibody
Binds peptides derived from antigens that access the endocytic route of antigen presenting cells (APC) and presents them on the cell surface for recognition by the CD4 T-cells. The peptide binding cleft accommodates peptides of 10-30 residues. The peptides presented by MHC class II molecules are generated mostly by degradation of proteins that access the endocytic route, where they are processed by lysosomal proteases and other hydrolases. Exogenous antigens that have been endocytosed by the APC are thus readily available for presentation via MHC II molecules, and for this reason this antigen presentation pathway is usually referred to as exogenous. As membrane proteins on their way to degradation in lysosomes as part of their normal turn-over are also contained in the endosomal/lysosomal compartments, exogenous antigens must compete with those derived from endogenous components. Autophagy is also a source of endogenous peptides, autophagosomes constitutively fuse with MHC class II loading compartments. In addition to APCs, other cells of the gastrointestinal tract, such as epithelial cells, express MHC class II molecules and CD74 and act as APCs, which is an unusual trait of the GI tract. To produce a MHC class II molecule that presents an antigen, three MHC class II molecules (heterodimers of an alpha and a beta chain) associate with a CD74 trimer in the ER to form a heterononamer. Soon after the entry of this complex into the endosomal/lysosomal system where antigen processing occurs, CD74 undergoes a sequential degradation by various proteases, including CTSS and CTSL, leaving a small fragment termed CLIP (class-II-associated invariant chain peptide). The removal of CLIP is facilitated by HLA-DM via direct binding to the alpha-beta-CLIP complex so that CLIP is released. HLA-DM stabilizes MHC class II molecules until primary high affinity antigenic peptides are bound. The MHC II molecule bound to a peptide is then transported to the cell membrane surface. In B-cells, the interaction between HLA-DM and MHC class II molecules is regulated by HLA-DO. Primary dendritic cells (DCs) also to express HLA-DO. Lysosomal miroenvironment has been implicated in the regulation of antigen loading into MHC II molecules, increased acidification produces increased proteolysis and efficient peptide loading.
Applications Tested/Suitable for anti-DQA1 antibody
ELISA (EIA)
NCBI/Uniprot data below describe general gene information for DQA1. It may not necessarily be applicable to this product.
NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Primary Accession #
UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
27,805 Da
NCBI Official Full Name
HLA class II histocompatibility antigen, DQ alpha 1 chain
NCBI Official Synonym Full Names
major histocompatibility complex, class II, DQ alpha 1
NCBI Official Symbol
HLA-DQA1  [Similar Products]
NCBI Official Synonym Symbols
CD; GSE; DQ-A1; CELIAC1; HLA-DQA
  [Similar Products]
NCBI Protein Information
HLA class II histocompatibility antigen, DQ alpha 1 chain
UniProt Protein Name
HLA class II histocompatibility antigen, DQ alpha 1 chain
UniProt Synonym Protein Names
DC-1 alpha chain; DC-alpha; HLA-DCA; MHC class II DQA1
UniProt Gene Name
HLA-DQA1  [Similar Products]
UniProt Entry Name
DQA1_HUMAN
NCBI Summary for DQA1
HLA-DQA1 belongs to the HLA class II alpha chain paralogues. The class II molecule is a heterodimer consisting of an alpha (DQA) and a beta chain (DQB), both anchored in the membrane. It plays a central role in the immune system by presenting peptides derived from extracellular proteins. Class II molecules are expressed in antigen presenting cells (APC: B Lymphocytes, dendritic cells, macrophages). The alpha chain is approximately 33-35 kDa. It is encoded by 5 exons; exon 1 encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, and exon 4 encodes the transmembrane domain and the cytoplasmic tail. Within the DQ molecule both the alpha chain and the beta chain contain the polymorphisms specifying the peptide binding specificities, resulting in up to four different molecules. Typing for these polymorphisms is routinely done for bone marrow transplantation. [provided by RefSeq, Jul 2008]
UniProt Comments for DQA1
HLA-DQA1: Binds peptides derived from antigens that access the endocytic route of antigen presenting cells (APC) and presents them on the cell surface for recognition by the CD4 T-cells. The peptide binding cleft accommodates peptides of 10-30 residues. The peptides presented by MHC class II molecules are generated mostly by degradation of proteins that access the endocytic route, where they are processed by lysosomal proteases and other hydrolases. Exogenous antigens that have been endocytosed by the APC are thus readily available for presentation via MHC II molecules, and for this reason this antigen presentation pathway is usually referred to as exogenous. As membrane proteins on their way to degradation in lysosomes as part of their normal turn-over are also contained in the endosomal/lysosomal compartments, exogenous antigens must compete with those derived from endogenous components. Autophagy is also a source of endogenous peptides, autophagosomes constitutively fuse with MHC class II loading compartments. In addition to APCs, other cells of the gastrointestinal tract, such as epithelial cells, express MHC class II molecules and CD74 and act as APCs, which is an unusual trait of the GI tract. To produce a MHC class II molecule that presents an antigen, three MHC class II molecules (heterodimers of an alpha and a beta chain) associate with a CD74 trimer in the ER to form a heterononamer. Soon after the entry of this complex into the endosomal/lysosomal system where antigen processing occurs, CD74 undergoes a sequential degradation by various proteases, including CTSS and CTSL, leaving a small fragment termed CLIP (class-II-associated invariant chain peptide). The removal of CLIP is facilitated by HLA-DM via direct binding to the alpha-beta-CLIP complex so that CLIP is released. HLA-DM stabilizes MHC class II molecules until primary high affinity antigenic peptides are bound. The MHC II molecule bound to a peptide is then transported to the cell membrane surface. In B-cells, the interaction between HLA-DM and MHC class II molecules is regulated by HLA-DO. Primary dendritic cells (DCs) also to express HLA-DO. Lysosomal microenvironment has been implicated in the regulation of antigen loading into MHC II molecules, increased acidification produces increased proteolysis and efficient peptide loading

Protein type: Cell surface; Membrane protein, integral

Cellular Component: Golgi membrane; lysosomal membrane; membrane; MHC class II protein complex; plasma membrane; trans-Golgi network membrane

Molecular Function: MHC class II receptor activity; peptide antigen binding

Biological Process: antigen processing and presentation of exogenous peptide antigen via MHC class II; T cell costimulation; T cell receptor signaling pathway
Precautions
All of MyBioSource's Products are for scientific laboratory research purposes and are not for diagnostic, therapeutics, prophylactic or in vivo use. Through your purchase, you expressly represent and warrant to MyBioSource that you will properly test and use any Products purchased from MyBioSource in accordance with industry standards. MyBioSource and its authorized distributors reserve the right to refuse to process any order where we reasonably believe that the intended use will fall outside of our acceptable guidelines.
Disclaimer
While every efforts were made to ensure the accuracy of the information provided in this datasheet, MyBioSource will not be liable for any omissions or errors contained herein. MyBioSource reserves the right to make changes to this datasheet at any time without prior notice.

It is the responsibility of the customer to report product performance issues to MyBioSource within 30 days of receipt of the product. Please visit our Terms & Conditions page for more information.
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