|Application ||WB, LCI|
|Calculated MW||121343 Da|
|Homology||Rat - 13/14 amino acid residues identical; mouse - 12/14 amino acid residues identical.|
|Other Names||Electrogenic sodium bicarbonate cotransporter 1, Sodium bicarbonate cotransporter, NBC-like protein, Na(+)/HCO3(-) cotransporter, Solute carrier family 4 member 4, Slc4a4, Nbc, Nbc1, Nbce1, Rnbc1|
|Related products for control experiments||Control peptide antigen (supplied with the antibody free of charge).|
|Target/Specificity||Peptide (C)KE(S)VKFGGKLVGNN, corresponding to amino acid residues 672-685 of rat NBCe1 (Accession Q9JI66). 2nd extracellular loop, based on the 10 transmembrane topology.Not recommended for human samples. The antibody will recognize all known rat splice variants|
|Peptide Confirmation||Confirmed by mass-spectrography and amino acid analysis.|
|Format||Affinity purified antibody, lyophilized powder|
|Reconstitution||25 µl, 50 µl or 0.2 ml deionized water, depending on the sample size.|
|Antibody Concentration After Reconstitution||0.8 mg/ml.|
|Storage Before Reconstitution||Lyophilized powder can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C.|
|Storage After Reconstitution||The reconstituted solution can be stored at 4ºC for up to 2 weeks. For longer periods, small aliquots should be stored at -20ºC or below. Avoid multiple freezing and thawing. The further dilutions should be made using a carrier protein such as BSA (1%). Centrifuge all antibody preparations before use (10000 × g 5 min).|
|Control Antigen Storage Before Reconstitution||Lyophilized powder can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C.|
|Control Antigen Reconstitution||100 µl DDW.|
|Control Antigen Storage After Reconstitution||-20ºC.|
|Preadsorption Control||1 µg peptide per 1 µg antibody.|
|Formulation||Lyophilized powder. Resuspended antibody contains phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.05% NaN3.|
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Provided below are standard protocols that you may find useful for product applications.
SLC4 membrane transporter proteins play important roles in kidney acid–base regulation through their transport of bicarbonate (or carbonate), Na+, Cl-, and (possibly NH4+)1. These transporters differ in their substrate (Na+, Cl-) dependence, charge transport stoichiometry, cell-type and developmental expression, functional regulation, and protein–protein interactions. In mammals, SLC4 proteins are encoded by 10 different genes that share protein sequence homology and are grouped according to their functional properties. In humans, the electrogenic sodium bicarbonate cotransporter NBCe-1 is encoded by the SLC4A4 gene2. NBCe1-A has a large N-terminal cytoplasmic region, a lipid embedded transmembrane region, and a C-terminal cytoplasmic tail3. The N-terminal cytoplasmic region is tightly folded and is predicted to form a domain structure, unlike the freely aqueous accessible C-terminal cytoplasmic tail. NBCe1-A is composed of either 10 or 14 transmembrane domains. Based on the 10 transmembrane topology, a large extracellular loop (EL) is present between TM3 and TM4 and contains two glycosylated sites. The oligomeric state of the cotransporter is dimeric and each monomeric subunit has independent transport activity4. Mutations in NBCe1 cause autosomal recessive proximal renal tubular acidosis (pRTA). Patients with NBCe1 mutations have severe pRTA, growth and mental retardation, basal ganglia calcification, cataracts, corneal opacities (band keratopathy), glaucoma, elevated serum amylase and lipase, and defects in the enamel consistent with amelogenesis imperfect3. Mice with loss of NBCe1 have a more severe phenotype with marked volume deletion and decreased survival5.
References 1. Romero, M.F. et al. (2013) Mol. Aspects Med. 34,159. 2. Abuladze, N. et al.(2000) Gene 251, 109. 3. Zhu, Q. et al. (2010) J. Biol. Chem. 285, 13416. 4. Kao, L. et al. (2008) J. Biol. Chem. 283, 26782. 5. Igarashi, T. et al. (1999) Nat. Genet. 23, 264.
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