Human Contactin-4 ELISA Kit PicoKine® (96 Tests). Quantitate Human CNTN4 in cell culture supeatants, serum and plasma (heparin, EDTA, citrate). Sensitivity: 50pg/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
Contactin-4; Brain-derived immunoglobulin superfamily protein 2; BIG-2; CNTN4
Immunogen
Expression system for standard: NS0; Immunogen sequence: D19-S1000
There is no detectable cross-reactivity with other relevant proteins.
Specificity
Natural and recombinant human Contactin-4
Subcellular Localization
Secreted. Cell membrane. GPI-anchor.
Sample Type
Cell culture supeatants, Serum, Plasma
Anticoagulant
heparin, EDTA or citrate
Precision
Intra-Assay Precision
Inter-Assay Precision
Sample
1
2
3
1
2
3
n
16
16
16
24
24
24
Mean (pg/ml)
343
1884
8803
425
2121
9479
Standard deviation
14.75
97.97
404.94
25.93
125.14
701.45
CV (%)
4.3%
5.2%
4.6%
6.1%
5.9%
7.4%
Protein Function
Contactins mediate cell surface interactions during nervous system development. Has some neurite outgrowth-promoting activity. May be involved in synaptogenesis.
Background
Contactin-4 is a protein that in humans is encoded by the CNTN4 gene. It is mapped to 3p26.3-p26.2. This gene encodes a member of the contactin family of immunoglobulins. Contactins are axon-associated cell adhesion molecules that function in neuronal network formation and plasticity. The encoded protein is a glycosylphosphatidylinositol-anchored neuronal membrane protein that may play a role in the formation of axon connections in the developing nervous system. Deletion or mutation of this gene may play a role in 3p deletion syndrome and autism spectrum disorders. Alteative splicing results in multiple transcript variants.
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
343
376
320
370
352
22.38
6.3%
Sample 2
1884
1754
1627
1875
1785
104.67
5.8%
Sample 3
8803
9355
8126
9099
8845
459.16
5.1%
*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
152330
Gene Name
CNTN4
UniProt ID
Q8IWV2
Tissue Specificity
Mainly expressed in brain. Highly expressed in cerebellum and weakly expressed in corpus callosum, caudate nucleus, amygdala and spinal cord. Also expressed in testis, pancreas, thyroid, uterus, small intestine and kidney. Not expressed in skeletal muscle. Isoform 2 is weakly expressed in cerebral cortex.
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.)