tripartite ATP-independent periplasmic transporter complex

A complex consisting of two membrane proteins and one extracytoplasmic solute receptor. Such transporters transport a variety of substrates without direct ATP power, instead using energy from ion gradients.

gamma-glutamyl carboxylase activity

Catalysis of the reaction: peptidyl-glutamate + reduced vitamin K + CO2 + O2 = peptidyl-gamma-carboxyglutamate + vitamin K epoxide.

substance K receptor binding

Binding to a substance K receptor.

neuromedin K receptor binding

Binding to a neuromedin K receptor.

potassium ion binding

Binding to a potassium ion (K+).

epinephrine binding

Binding to epinephrine, a hormone produced by the medulla of the adrenal glands that increases heart activity, improves the power and prolongs the action of muscles, and increases the rate and depth of breathing. It is synthesized by the methylation of norepinephrine.

epinephrine metabolic process

The chemical reactions and pathways involving epinephrine, a hormone produced by the medulla of the adrenal glands that increases heart activity, improves the power and prolongs the action of muscles, and increases the rate and depth of breathing. It is synthesized by the methylation of norepinephrine.

P-type potassium transmembrane transporter activity

Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: ATP + H2O + K+(out) = ADP + phosphate + K+(in).

potassium:proton antiporter activity

Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: K+(in) + H+(out) = K+(out) + H+(in).

potassium:proton symporter activity

Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: K+(out) + H+(out) = K+(in) + H+(in).