RPA1 Polyclonal Antibody (E-AB-64035)
For research use only.
Verified Samples |
Verified Samples in WB: U87-MG, HeLa, 293T, A549 Verified Samples in IHC: Human lung cancer, Human uterus |
Dilution | WB 1:500-1:2000, IHC 1:50-1:100 |
Isotype | IgG |
Host | Rabbit |
Reactivity | Human |
Applications | WB, IHC |
Clonality | Polyclonal |
Immunogen | Recombinant fusion protein of human RPA1 (NP_002936.1). |
Synonyms | HSSB, MST075, REPA1, RF-A, RP-A, RPA1, RPA70 |
Swissprot | |
Calculated MW | 68 kDa |
Observed MW |
70 kDa
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 | Nucleus. |
Concentration | 1 mg/mL |
Buffer | PBS with 0.02% sodium azide, 50% glycerol, pH7.3. |
Purification Method | Affinity purification |
Research Areas | Cancer, Epigenetics and Nuclear Signaling |
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 | This gene encodes the largest subunit of the heterotrimeric Replication Protein A (RPA) complex, which binds to single-stranded DNA (ssDNA), forming a nucleoprotein complex that plays an important role in DNA metabolism, being involved in DNA replication, repair, recombination, telomere maintenance, and co-ordinating the cellular response to DNA damage through activation of the ataxia telangiectasia and Rad3-related protein (ATR) kinase. The nucleoprotein complex protects the single-stranded DNA from nucleases, prevents formation of secondary structures that would interfere with repair, and co-ordinates the recruitment and departure of different genome maintenance factors. This subunit contains four oligonucleotide/oligosaccharide-binding (OB) domains, though the majority of ssDNA binding occurs in two of these domains. The heterotrimeric complex has two different modes of ssDNA binding, a low-affinity and high-affinity mode, determined by which ssDNA binding domains are utilized. The different binding modes differ in the length of DNA bound and in the proteins with which it interacts, thereby playing a role in regulating different genomic maintenance pathways. |
Other Clones
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Other Formats
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Unconjugated
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