|Description||The protein encoded by this gene has been termed a 'growth' or 'plasticity' protein because it is expressed at high levels in neuronal growth cones during development and axonal regeneration. This protein is considered a crucial component of an effective regenerative response in the nervous system. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008]|
|Unit quantity||100 μl|
|Specificity||Rat and Mouse.|
|Immunogen||GAP43 is very abundant protein which is found concentrated in neurons. One group discovered it as one of three proteins which becomes unregulated during the regeneration of the toad optic nerve (1). Three GAPs (Growth associated proteins) were discovered, and the number 43 comes from the apparent SDS-PAGE molecular weight of the one named GAP43. The HGNC name for this protein is, not surprisingly, GAP43. Later work showed that GAP43 does not run on SDS-PAGE in a fashion which accurately reflects its molecular weight, and that GAP43 proteins from different species may run at different apparent molecular weights. Partly due to these features GAP43 were independently discovered by several different groups and therefore has several alternate names, such as protein F1, pp46, neuromodulin, neural phosphoprotein B-50 and calmodulin-binding protein P-57. In each case the number reflects the apparent SDS-PAGE molecular weight, and underlines the unusual properties of this molecule. Mammalian GAP43 proteins contains only 226-243 amino acids, and so the real molecular weight is 23.61-25.14KDa (to perform such calculations yourself see this link). GAP43 is one of many highly negatively charged extended molecules which lack well defined tertiary structure and which run anomolously on SDS-PAGE. Other examples are microtubule associated proteins MAP2 and tau and the Neurofilament subunits. GAP43 has been extensively studied and is known to be a major protein kinase C substrate and to bind calmodulin avidly. GAP43 is anchored to the plasma membrane by palmitoylation modifications.|
|Applications||On western blots look for a major band at 43 kDa, depending on the species.|
|Recommended Dilutions||On western blots look for a major band at 43 kDa, depending on the species.|
|Storage Condition||This product is stable for several weeks at 4° C as an undiluted liquid. Dilute only prior to immediate use. For extended storage, aliquot contents and freeze at -20° C or below. Avoid cycles of freezing and thawing. Expiration date is one (1) year from date of receipt.|
|Storage Buffer||PBS, pH 7.4 with 0.02% sodium azide.|
|Guarantee||abm guarantees that all our Anti-GAP43 Antibody will perform as described on this product webpage, if this is not the case we will provide you with a one-time replacement at no extra cost. Documentation and explanation of experiment conducted will be required when submitting a claim for replacement.|
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