HLA-DQA1 Polyclonal Antibody (E-AB-60655)

For research use only.
Verified Samples |
Verified Samples in WB: SW620, HT29, Lovo, Mouse brain, Mouse stomach Verified Samples in IHC: Human prostate, Human esophagus |
Dilution | WB 1:500-1:2000, IHC 1:50-1:200 |
Isotype | IgG |
Host | Rabbit |
Reactivity | Human, Mouse |
Applications | WB, IHC |
Clonality | Polyclonal |
Immunogen | Recombinant fusion protein of human HLA-DQA1 (NP_002113.2). |
Abbre | HLA-DQA1 |
Synonyms | CD, CELIAC1, DQ-A1, GSE, HLA-DQA, HLA-DQA1, class II |
Swissprot | |
Calculated MW | 27 kDa |
Observed MW |
28 kDa-37 KD
The actual band is not consistent with the expectation.
Western blotting is a method for detecting a certain protein in a complex sample based on the specific binding of antigen and antibody. Different proteins can be divided into bands based on different mobility rates. The mobility is affected by many factors, which may cause the observed band size to be inconsistent with the expected size. The common factors include: 1. Post-translational modifications: For example, modifications such as glycosylation, phosphorylation, methylation, and acetylation will increase the molecular weight of the protein. 2. Splicing variants: Different expression patterns of various mRNA splicing bodies may produce proteins of different sizes. 3. Post-translational cleavage: Many proteins are first synthesized into precursor proteins and then cleaved to form active forms, such as COL1A1. 4. Relative charge: the composition of amino acids (the proportion of charged amino acids and uncharged amino acids). 5. Formation of multimers: For example, in protein dimer, strong interactions between proteins can cause the bands to be larger. However, the use of reducing conditions can usually avoid the formation of multimers. If a protein in a sample has different modified forms at the same time, multiple bands may be detected on the membrane. |
Cellular Localization | Cell membrane. Endoplasmic reticulum membrane. Golgi apparatus>trans-Golgi network membrane. Endosome membrane. Lysosome membrane. The MHC class II complex transits through a number of intracellular compartments in the endocytic pathway until it reaches the cell membrane for antigen presentation. |
Concentration | 1 mg/mL |
Buffer | Phosphate buffered solution, pH 7.4, containing 0.05% stabilizer and 50% glycerol. |
Purification Method | Affinity purification |
Research Areas | Cancer, Immunology |
Conjugation | Unconjugated |
Storage | Store at -20°C Valid for 12 months. Avoid freeze / thaw cycles. |
Shipping | The product is shipped with ice pack,upon receipt,store it immediately at the temperature recommended. |
background | 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. |
Other Clones
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Other Formats
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Unconjugated
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