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Primary Antibodies
JPH4 Antibody
Background
Junctional complexes between the plasma membrane (PM) and endoplasmic/sarcoplasmic reticulum (ER/SR) are a common feature of all excitable cell types and mediate cross talk between cell surface and intracellular ion channels. Junctophilins (JPs) are important components of the junctional complexes. JPs are composed of a carboxy-terminal hydrophobic segment spanning the ER/SR membrane and a remaining cytoplasmic domain that shows specific affinity for the PM. Four JPs have been identified as tissue-specific subtypes derived from different genes: JPH1 is expressed in skeletal muscle, JPH2 is detected throughout all muscle cell types, and JPH3 and JPH4 are predominantly expressed in the brain. In the CNS, both JPH3 and JPH4 are expressed throughout neural sites and contribute to the subsurface cistern formation in neurons. Mice lacking both JPH3 and JPH4 subtypes exhibit serious symptoms such as impaired learning and memory and are accompanied by abnormal nervous functions.
Additional Names
JPH4 (CT), Junctophilin 4, JPHL1, hJP-4
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Description
Left: Western blot analysis of JPH4 in 293 cell lysate with JPH4 antibody at 1 μg/ml in (A) the absence and (B) the presence of blocking peptide.
Below: Immunohistochemistry of JPH4 in human brain tissue with JPH4 antibody at 2.5 μg/ml.
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Other Product Images
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Source
JPH4 antibody was raised against a 16 amino acid peptide near the carboxy terminus of human JPH4.
Purification
Affinity chromatography purified via peptide column
Clonality / Clone
This is a polyclonal antibody.
Host
JPH4 antibody was raised in rabbit.
Please use anti-rabbit secondary antibodies.
Application
JPH4 antibody can be used for detection of JPH4 by Western blot at 1 – 2 μg/ml.
Tested Application
E, WB, IHC
Buffer
Antibody is supplied in PBS containing 0.02% sodium azide.
Blocking Peptide
Cat.No. 4923P - JPH4 Peptide
Storage
JPH4 antibody can be stored at 4˚C, stable for one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures.
Positive Control
- Cat. No. 1210 - 293 Cell Lysate
Species Reactivity
H, M, R
Protein GI Number
33585440
Protein Accession Number
AAH55429
Short Description
(CT) T tubule, SR membrane, sarcoplasmic reticulum
This product belongs to the following categories:
Related Products
References- Takeshima H, Komazaki S, Nishi M, et al. Junctophilins: a novel family of junctional membrane complex proteins. Mol. Cell. 2000; 6:11-22.
- Kakizawa S, Kishimoto Y, Hashimoto K, et al. Junctophilin-mediated channel crosstalk essential for cerebellar synaptic plasticity. EMBO J. 2007; 26:1924-33.
- Nishi M, Sakagami H, Komazaki S, et al. Coexpression of junctophilin type 3 and type 4 in brain. Brain Res. Mol. Brain Res. 2003; 118:102-10.
- Moriguchi S, Nishi M, Komazaki S, et al. Functional uncoupling between Ca2+ release and afterhyperpolarization in mutant hippocampal neurons lacking junctophilins. Proc. Natl. Acad. Sci. 2006; 103:10811-6.
Datasheet 09-01W
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