Mouse MHC Class II Antibody | anti-B-L antibody

Mouse Anti-Chicken MHC Class II-BIOT

Cat. Num. AAA670611

• Gene Names: HLA-DQB1; IDDM1; CELIAC1; HLA-DQB
• Applications: Flow Cytometry, Functional Assay, Immunohistochemistry, Immunoprecipitation
• Synonyms: MHC Class II; Mouse Anti-Chicken MHC Class II-BIOT; B-L; anti-B-L antibody

• Host: Mouse
• Isotype: IgG1kappa
• Clone Number: 2G11
• Specificity: Chicken MHC class II beta-chain
• Concentration: 0.5 mg/mL (varies by lot)
• Sequence Length: 229

• Applicable Applications for anti-B-L antibody: Flow Cytometry (FC/FACS), Immunohistochemistry (IHC) Formalin, Electron Microscopy, , Immunoprecipitation (IP), Purification
• Application Notes: Flow Cytometry - Quality tested; Immunohistochemistry-Frozen Sections - Reported in literature; Electron Microscopy - Reported in literature; Immunoprecipitation - Reported in literature; Purification - Reported in literature
• Buffer Formulation: Supplied in PBS/NaN3
• Isotype Control: Mouse IgG1-BIOT
• Preparation and Storage: Store at 2-8 degree C

Testing Data

Related Product Information for anti-B-L antibody

The chicken major histocompatibility complex (MHC), or B complex, consists of several clusters of highly polymorphic genes. Like their mammalian counterparts, the avian MHC exerts genetic influence over a variety of important biological functions such as immune response, disease resistance, growth and development, aging, and reproduction. Chicken MHC Class II genes, also known as the B-L subregion, of the chicken MHC encode cell surface glycoproteins that are homologous to mammalian Class II antigens.B-L antigens are structurally similar to mammalian Class II molecules in that they are noncovalently bound dimers of one heavy chain and one light chain. MHC Class II is primarily expressed on B cells and antigen presenting cells (APCs).

References

1. Salomonsen J, Dunon D, Skjødt K, Thorpe D, Vainio O, Kaufman J. Chicken major histocompatibility complex-encoded B-G antigens are found on many cell types that are important for the immune system. Proc Natl Acad Sci USA. 1991;88:1359-63. (IP, IHC-FS, FC)
2. Kaufman J, Skjoedt K, Salomonsen J, Simonsen M, Du Pasquier L, Parisot R, et al. MHC-like molecules in some nonmammalian vertebrates can be detected by some cross-reactive xenoantisera. J Immunol. 1990;144:2258-72. (IP)
3. Salomonsen J, Marston D, Avila D, Bumstead N, Johansson B, Juul-Madsen H, et al. The properties of the single chicken MHC classical class II alpha chain (B-LA) gene indicate an ancient origin for the DR/E-like isotype of class II molecules. Immunogenetics. 2003;55:605-14. (Purification)
4. Bader SR, Kothlow S, Trapp S, Schwarz SC, Philipp H, Weigend S, et al. Acute paretic syndrome in juvenile White Leghorn chickens resembles late stages of acute inflammatory demyelinating polyneuropathies in humans. J Neuroinflammation. 2010;7:7. (IHC-FS, FC)
5. del Cacho E, Gallego M, Lee SH, Lillehoj HS, Quilez J, Lillehoj EP, et al. Induction of protective immunity against Eimeria tenella infection using antigen-loaded dendritic cells (DC) and DC-derived exosomes. Vaccine. 2011;29:3818-25. (EM)
6. Ekino S, Riwar B, Kroese FG, Schwander EH, Koch G, Nieuwenhuis P. Role of environmental antigen in the development of IgG+ cells in the bursa of fabricius. J Immunol. 1995;155:4551-8. (FC)
7. Katevuo K, Vainio O. Thymocyte emigration in the chicken: an over-representation of CD4+ cells over CD8+ in the periphery. Immunology. 1996;89:419-23. (FC)
8. Madruga J, Koritschoner NP, Diebold SS, Kurz SM, Zenke M. Polarised expression pattern of focal contact proteins in highly motile antigen presenting dendritic cells. J Cell Sci. 1999;112:1685-96. (FC)
9. Koritschoner NP, Madruga J, Knespel S, Blendinger G, Anzinger B, Otto A, et al. The nuclear orphan receptor TR4 promotes proliferation of myeloid progenitor cells. Cell Growth Differ. 2001;12:563-72. (FC)
10. Buitenhuis AJ, Kjaer JB, Labouriau R, Juul-Madsen HR. Altered circulating levels of serotonin and immunological changes in laying hens divergently selected for feather pecking behavior. Poult Sci. 2006;85:1722-8. (FC)
11. Juul-Madsen HR, Dalgaard TS, Røntved CM, Jensen KH, Bumstead N. Immune response to a killed infectious bursal disease virus vaccine in inbred chicken lines with different major histocompatibility complex haplotypes. Poult Sci. 2006;85:986-98. (FC)
12. Del Cacho E, Gallego M, Lillehoj HS, López-Bernard F, Sánchez-Acedo C. Avian follicular and interdigitating dendritic cells: isolation and morphologic, phenotypic, and functional analyses. Vet Immunol Immunopathol. 2009;129:66-75. (FC)
13. Janardhana V, Broadway MM, Bruce MP, Lowenthal JW, Geier MS, Hughes RJ, et al. Prebiotics modulate immune responses in the gut-associated lymphoid tissue of chickens. J Nutr. 2009;139:1404-9. (FC)
14. Dalgaard T, Boving MK, Handberg K, Jensen KH, Norup LR, Juul-Madsen HR. MHC expression on spleen lymphocyte subsets in genetically resistant and susceptible chickens infected with Marek's disease virus. Viral Immunol. 2009;22:321-7. (FC)
15. Sunkara LT, Achanta M, Schreiber NB, Bommineni YR, Dai G, Jiang W, et al. Butyrate enhances disease resistance of chickens by inducing antimicrobial host defense peptide gene expression. PLoS One. 2011;6(11):e27225. (FC)
16. Revajová V, Slaminková Z, Grešáková L, Levkut M. Duodenal morphology and immune responses of broiler chickens fed low doses of deoxynivalenol. Acta Vet. Brno. 2013;82:337-42. (FC)
17. Chrz?stek K, Piasecki T, Wieliczko A. Impact of CpG oligodeoxynucleotide stimulation on percentage of T and B cells in chicken. Pol J Vet Sci. 2013;16:551-4. (FC)
18. Fernandes Filho T, Fávaro C Jr, Ingberman M, Beiro BC, Inoue A, Gomes L, et al. Effect of spray Escherichia coli vaccine on the immunity of poultry. Avian Dis. 2013;57:671-6. (FC)
19. Vu Manh T, Marty H, Sibille P, Le Vern Y, Kaspers B, Dalod M, et al. Existence of conventional dendritic cells in Gallus gallus revealed by comparative gene expression profiling. J Immunol. 2014;192:4510-7. (FC)

NCBI and Uniprot Product Information

• NCBI GI #: 1160938
• NCBI GeneID: 3119
• Molecular Weight: 29,991 Da
• NCBI Official Full Name: MHC class II, partial
• NCBI Official Synonym Full Names: major histocompatibility complex, class II, DQ beta 1
• NCBI Official Symbol: HLA-DQB1
• NCBI Official Synonym Symbols: IDDM1; CELIAC1; HLA-DQB
• NCBI Protein Information: HLA class II histocompatibility antigen, DQ beta 1 chain
• UniProt Protein Name: HLA class II histocompatibility antigen, DQ beta 1 chain
• Protein Family: MHC class II transactivator
• UniProt Gene Name: HLA-DQB1
• UniProt Synonym Gene Names: HLA-DQB
• UniProt Entry Name: DQB1_HUMAN

NCBI Description

HLA-DQB1 belongs to the HLA class II beta chain paralogs. This 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 beta chain is approximately 26-28 kDa and it contains six exons. Exon 1 encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, exon 4 encodes the transmembrane domain and exon 5 encodes 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. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2011]

Uniprot Description

HLA-DQB1: 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. Belongs to the MHC class II family.

Protein type: Membrane protein, integral

Chromosomal Location of Human Ortholog: 6p21.3

Cellular Component: endosome membrane; 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; humoral immune response mediated by circulating immunoglobulin; immune response; immunoglobulin production during immune response; T cell costimulation; T cell receptor signaling pathway

Disease: Celiac Disease; Creutzfeldt-jakob Disease; Multiple Sclerosis, Susceptibility To