Synthesized peptide derived from part region of human protein. AA range:63-113

KCMB1 Polyclonal Antibody detects endogenous levels of protein.

KCNMB1

Calcium-activated potassium channel subunit beta-1 (BK channel subunit beta-1) (BKbeta) (BKbeta1) (Hbeta1) (Calcium-activated potassium channel, subfamily M subunit beta-1) (Calcium-activated potassium channel subunit beta) (Charybdotoxin receptor subunit beta-1) (K (VCA) beta-1) (Maxi K channel subunit beta-1) (Slo-beta-1) (Slo-beta)

MaxiK channels are large conductance , voltage and calcium-sensitive potassium channels which are fundamental to the control of smooth muscle tone and neuronal excitability. MaxiK channels can be formed by 2 subunits: the pore-forming alpha subunit and the product of this gene , the modulatory beta subunit. Intracellular calcium regulates the physical association between the alpha and beta subunits. [provided by RefSeq , Jul 2008] ,

Function:Regulatory subunit of the calcium activated potassium KCNMA1 (maxiK) channel. Modulates the calcium sensitivity and gating kinetics of KCNMA1 , thereby contributing to KCNMA1 channel diversity. Increases the apparent Ca (2+) /voltage sensitivity of the KCNMA1 channel. It also modifies KCNMA1 channel kinetics and alters its pharmacological properties. It slows down the activation and the deactivation kinetics of the channel. Acts as a negative regulator of smooth muscle contraction by enhancing the calcium sensitivity to KCNMA1. Its presence is also a requirement for internal binding of the KCNMA1 channel opener dehydrosoyasaponin I (DHS-1) triterpene glycoside and for external binding of the agonist hormone 17-beta-estradiol (E2) . Increases the binding activity of charybdotoxin (CTX) toxin to KCNMA1 peptide blocker by increasing the CTX association rate and decreasing the dissociation rate. ,polymorphism:Genetic variation in KCNMB1 can influence the severity of diastolic hypertension. ,PTM:N-glycosylated. ,similarity:Belongs to the KCNMB family. ,subunit:Interacts with KCNMA1 tetramer. There are probably 4 molecules of KCMNB1 per KCNMA1 tetramer. ,tissue specificity:Abundantly expressed in smooth muscle. Low levels of expression in most other tissues. Within the brain , relatively high levels found in hippocampus and corpus callosum. ,

Membrane; Multi-pass membrane protein.

>>cGMP-PKG signaling pathway ;
>>Vascular smooth muscle contraction ;
>>Insulin secretion