SRPRB
(Signal Recognition Particle Receptor, B Subunit (SRPRB))
Binding Specificity
AA 246-265
Reactivity
Dog
Host
Sheep
Clonality
Polyclonal
Conjugate
This SRPRB antibody is un-conjugated
Application
Western Blotting (WB), Immunohistochemistry (IHC)
Cross-Reactivity
Chicken, Dog
Characteristics
Signal Recognition Particle Receptor, β subunit,The receptor for Signal Recognition Particle (SRP) is the site on the endoplasmic reticulum that ribosomes translating secreted and integral membrane proteins are initially targeted to. Once the ribosome-SRP complex arrives at the SRP receptor the protein being translated is transferred to the translocation complex (Sec61) in the ER membrane. The SRP receptor is composed of two subunits SRalpha and SRbeta. The SRalpha subunit is a translocation GTPase peripherally bound to the endoplasmic reticulum by its interaction with SRbeta. SRalpha also binds to the GTPase of SRP (SRP54) and these two proteins appear to function as each others GTPase activating proteins (GAPs). Hydrolysis of GTP by SRalpha and SRP54 is thought to be involved in transfer of the nascent protein to the Sec61 complex in the ER. SRalpha has an apparent molecular weight of 72 kDa. SRbeta is a Type I transmembrane protein that spans the membrane once and contains Ras type GTPase domain. The function of the GTPase in SRbeta is unknown. The membrane spanning domain is at the amino-terminus of SRbeta. The GTPase domain encompasses three quarters of the protein and is carboxyl- of the transmembrane region. SRalpha binds to the GTPase domain of SRbeta. Heterodimerization of SRalpha and SRbeta masks the carboxyl-terminal epitope of SRbeta.
Purification
Ammonium Sulfate Precipitation
Immunogen
Synthetic peptide corresponding to amino acids 246-265 derived from the carboxyl terminal of the canine SRbeta subunit.
SRPRB
Reactivity: Human, Mouse, Rat, Dog, Horse, Rabbit, Bat, Monkey, Xenopus laevis
WB
Host: Rabbit
Polyclonal
unconjugated
Application Notes
Detects SRbeta by Western blot analysis at 15 μg/mL. Antibody will not detect SRbeta protein bound to SRalpha. Optimal concentration should be evaluated by serial dilutions.
Restrictions
For Research Use only
Buffer
Provided as solution in phosphate buffered saline with 0.08 % sodium azide
Preservative
Sodium azide
Precaution of Use
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
-20 °C
Storage Comment
Product should be stored at -20°C. Aliquot to avoid freeze/thaw cycles
Target
SRPRB
(Signal Recognition Particle Receptor, B Subunit (SRPRB))