Our Anti-Potassium Chloride Cotransporter (KCC2) (Ser940) rabbit polyclonal phosphospecific primary antibody from PhosphoSolutions is produced in-house. It detects mouse and rat Potassium Chloride Cotransporter (KCC2) (Ser940) and is antigen affinity purified from pooled serum. It is great for use in WB, IP.
Western blot of rat hippocampal lysate showing specific labeling of the ~135 kDa KCC2 protein phosphorylated at Ser940 in the first lane (-). Immunolabeling is blocked by preadsorption with the phosphopeptide used as antigen in the second lane (+), but not by the corresponding non-phosphopeptide (not shown).
KCC2 is widely thought to be expressed exclusively in neurons where it is responsible for maintaining low intracellular chloride concentration to drive hyperpolarizing post-synaptic responses to the inhibitory neurotransmitters GABA and glycine. Serine 940 on KCC2 has been shown to be phosphorylated by PKC and has further been demonstrated to be the major site for PKC-dependent phosphorylation for full length KCC2 molecules when expressed in HEK-293 cells as phosphorylation of Ser-940 increased the cell surface stability of KCC2 in this system by decreasing it’s rate of internalization from the plasma membrane (Lee et al., 2007).
Antigen Affinity Purified from Pooled Serum
Polyclonal
IgG
IP, WB
Rabbit
KCC2
135 kDa
Synthetic phospho-peptide corresponding to amino acid residues surrounding Ser940 of rat KCC2, conjugated to keyhole limpet hemocyanin (KLH).
Rat
Bovine, Canine, Non-Human Primate, Zebrafish
AB_2492213
Storage at -20°C is recommended, as aliquots may be taken without freeze/thawing due to presence of 50% glycerol. Stable for at least 1 year at -20°C.
Liquid
Prepared from pooled rabbit serum by affinity purification via sequential chromatography on phospho and non-phosphopeptide affinity columns.
10 mM HEPES (pH 7.5), 150 mM NaCl, 100 µg per ml BSA and 50% glycerol.
WB: 1:1000
WB Brain: 1:1000
IP: 40ul of antibody per 1mg lysate
Unconjugated
Specific for endogenous levels of the ~135 kDa KCC2 protein phosphorylated at Ser940. Immunolabeling is blocked by preadsorption with the phosphopeptide used as antigen, but not by the corresponding non-phosphopeptide.
Phosphorylated
Ser940
Western blots performed on each lot.
For research use only. Not intended for therapeutic or diagnostic use. Use of all products is subject to our terms and conditions, which can be viewed on our website.
After date of receipt, stable for at least 1 year at -20°C.
Liao, W, et al. 2023. CDKL5-mediated developmental tuning of neuronal excitability and concomitant regulation of transcriptome. Human Molecular Genetics, .
Jarvis, R., et al. 2023. Direct Activation of KCC2 Arrests Benzodiazepine Refractory Status Epilepticus and Limits the Subsequent Neuronal Injury in Mice. Cell Reports Medicine, 100957.
Gomez, C.D., et al. 2019. Early life inflammation increases CA1 pyramidal neuron excitability in a sex and age dependent manner through a chloride homeostasis disruption. Journal of Neuroscience, pp.2973-18.
Mekhael, W., et al. 2019. Repeated anodal trans‐spinal direct current stimulation results in long‐term reduction of spasticity in mice with spinal cord injury. The Journal of physiology, Apr;597(8):2201-2223.
Mòdol, L., et al. 2014. Differential effects on KCC2 expression and spasticity of ALS and traumatic injuries to motoneurons. Frontiers in cellular neuroscience, Jan 24; 8:7.
Sarkar, J., et al. 2011. Neurosteroidogenesis is required for the physiological response to stress: role of neurosteroid-sensitive GABAA receptors. J Neurosci. 31(50):18198-210.
Kalashnikov, V.E., et al. 2021. Prochlorperazine Withdraws the Delayed Onset Tonic Activity of Unloaded Rat Soleus Muscle: A Pilot Study. Life, 11(11), p.1161.
Huang, Y.J., et al. 2018. Ionic plasticity and pain: the loss of descending serotonergic fibers after spinal cord injury transforms how GABA affects pain. Experimental Neurology, 306, pp.105-116.
Conway, L.C., et al. 2017. N-ethylmaleimide increases KCC2 activity by modulating transporter phosphorylation. Journal of Biological Chemistry, Dec 29;292(52):21253-21263.
López-Álvarez, V. M., et al. 2015. Early increasing-intensity treadmill exercise reduces neuropathic pain by preventing nociceptor collateral sprouting and disruption of chloride cotransporters homeostasis after peripheral nerve injury. Pain. Jun 18.
Mòdol, L., et al. 2014. Neonatal allopregnanolone or finasteride administration modifies hippocampal K+ Cl− co-transporter expression during early development in male rats. The Journal of steroid biochemistry and molecular biology, Sep; 143:343-7.
Mòdol, L., et al. 2014. Prevention of NKCC1 phosphorylation avoids downregulation of KCC2 in central sensory pathways and reduces neuropathic pain after peripheral nerve injury. PAIN, Aug; 155(8):1577-90.