Mouse EphA4 ELISA Kit PicoKine®

Mfr.No.

EK1799

Sensitivity

<10 pg/ml

Detection Range

31.2 pg/ml - 2,000 pg/ml

Reactivity

Mouse

Sample Volume

Concentration (pg/ml)	0	31.2	62.5	125	250	500	1000	2000
O.D.	0.032	0.175	0.294	0.511	0.851	1.320	1.825	2.213

Description

Mouse EphA4 ELISA Kit PicoKine® (96 Tests). Quantitate Mouse Epha4 in cell culture supeatants, serum and plasma (heparin, EDTA). Sensitivity: 10pg/ml. The brand Picokine indicates this is a premium quality ELISA kit. Each Picokine kit delivers precise quantification, high sensitivity, and excellent reproducibility. Only our most reliable and effective kits qualify as Picokine, guaranteeing top-tier results for your assays.

Alternative Names

Ephrin type-A receptor 4; Tyrosine-protein kinase receptor MPK-3; Epha4; Tyrosine-protein kinase receptor SEK-1; Sek; Sek1

Immunogen

Expression system for standard: NS0; Immunogen sequence: V20-T547

Kit Components

Description Quantity
Pre-coated 96-well strip microplate 1
Standard 2 vials
Biotinylated antibody (100x) 100ul
Avidin-Biotin-Peroxidase Complex (100x) 100ul
Sample Diluent 30ml
Antibody Diluent 12ml
Avidin-Biotin-Peroxidase Diluent 12ml
Color Developing Reagent (TMB) 10ml
Stop Solution 10ml
Wash Buffer (25x) 20ml
Adhesive plate sealers 4

Cross Reactivity

There is no detectable cross-reactivity with other relevant proteins.

Specificity

Natural and recombinant mouse EphA4

Subcellular Localization

Early endosome. Cell membrane. Single-pass type I membrane protein. postsynaptic density. Axon. Dendrite.

Sample Type

Cell culture supeatants, Serum, Plasma

Anticoagulant

heparin or EDTA

Precision

	Intra-Assay Precision			Inter-Assay Precision
Sample	1	2	3	1	2	3
n	16	16	16	24	24	24
Mean (pg/ml)	35	199	734	46	208	857
Standard deviation	2.03	11.94	33.76	2.81	14.35	62.56
CV (%)	5.8%	6.0%	4.6%	6.1%	6.9%	7.3%

Protein Function

Receptor tyrosine kinase which binds membrane-bound ephrin family ligands residing on adjacent cells, leading to contact-dependent biional signaling into neighboring cells. The signaling pathway downstream of the receptor is referred to as forward signaling while the signaling pathway downstream of the ephrin ligand is referred to as reverse signaling. Highly promiscuous, it has the unique property among Eph receptors to bind and to be physiologically activated by both GPI-anchored ephrin-A and transmembrane ephrin-B ligands including EFNA1 and EFNB3. Upon activation by ephrin ligands, modulates cell morphology and integrin-dependent cell adhesion through regulation of the Rac, Rap and Rho GTPases activity. Plays an important role in the development of the nervous system controlling different steps of axonal guidance including the establishment of the corticospinal projections. May also control the segregation of motor and sensory axons during neuromuscular circuit development. In addition to its role in axonal guidance plays a role in synaptic plasticity. Activated by EFNA1 phosphorylates CDK5 at 'Tyr-15' which in tu phosphorylates NGEF regulating RHOA and dendritic spine morphogenesis. In the nervous system, plays also a role in repair after injury preventing axonal regeneration and in angiogenesis playing a role in central nervous system vascular formation. Additionally, its promiscuity makes it available to participate in a variety of cell-cell signaling regulating for instance the development of the thymic epithelium.

Background

EPH receptor A4 (ephrin type-A receptor 4) is a protein that in humans is encoded by the EPHA4 gene. It is mapped to 1 C4; 1 39.55 cM. This gene belongs to the ephrin receptor subfamily of the protein-tyrosine kinase family. EPH and EPH-related receptors have been implicated in mediating developmental events, particularly in the nervous system. Receptors in the EPH subfamily typically have a single kinase domain and an extracellular region containing a Cys-rich domain and 2 fibronectin type III repeats. The ephrin receptors are divided into 2 groups based on the similarity of their extracellular domain sequences and their affinities for binding ephrin-A and ephrin-B ligands.

Reproducibility

Lots	Lot 1 (pg/ml)	Lot 2 (pg/ml)	Lot 3 (pg/ml)	Lot 4 (pg/ml)	Mean (pg/ml)	Standard Deviation	CV (%)
Sample 1	35	37	35	36	35	0.82	2.3%
Sample 2	199	227	230	222	219	12.17	5.5%
Sample 3	734	746	745	882	776	60.94	7.8%

*number of samples for each test n=16.

Notes

Material Required But Not Provided:
Microplate Reader capable of reading absorbance at 450nm.
Incubator.
Automated plate washer .
Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions.
Multichannel pipettes are recommended for large amount of samples.
Deionized or distilled water.
500ml graduated cylinders.
Test tubes for dilution.

Gene ID	13838
Gene Name	Epha4
UniProt ID	Q03137
Tissue Specificity	Highest expression in the adult brain and retina and also detectable in kidney, lung, skeletal muscle and thymus. Not detected in heart and liver. Expressed in myogenic progenitor cells.

Applications	ELISA

Storage	Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)

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SKU	Supplier No.	Size	Your price	Quantity
BHE21001608	EK1799	96 wells/kit	$750		Add to Cart

Mouse EphA4 ELISA Kit PicoKine®

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