Transport proteins

class of enzymes

type of ion channel transmembrane protein

membrane proteins involved in the movement of ions, small molecules, or macromolecules, such as another protein, across a biological membrane

transmembrane protein that transports H⁺ ions against their concentration gradient

protein that serves the function of moving other materials within an organism

biological process

family of monosaccharide transport proteins

Connexins (Cx) (TC# 1.A.24), or gap junction proteins, are structurally related transmembrane proteins that assemble to form vertebrate gap junctions. An entirely different family of proteins, the innexins, forms gap junctions in invertebrates. Each gap junction is composed of two hemichannels, or connexons, which consist of homo- or heterohexameric arrays of connexins, and the connexon in one plasma membrane docks end-to-end with a connexon in the membrane of a closely opposed cell. The hemichannel is made of six connexin subunits, each of which consist of four transmembrane segments. Gap jun

Ferroportin-1, also known as solute carrier family 40 member 1 (SLC40A1) or iron-regulated transporter 1 (IREG1), is a protein that in humans is encoded by the SLC40A1 gene. Ferroportin is a transmembrane protein that transports iron from the inside of a cell to the outside of the cell. Ferroportin is the only known iron exporter.

family of membrane transport proteins

class of transport proteins

Karyopherins are transport proteins involved in the nuclear transport of moving molecules between the cytoplasm and the nucleus of a eukaryotic cell. (The inside of the nucleus is called the karyoplasm (or nucleoplasm). Generally, karyopherin-mediated transport occurs through nuclear pores which act as gateways into and out of the nucleus. Macromolecular proteins require karyopherins to traverse the nuclear pore.

Importin is a type of karyopherin involved in the nuclear transport of moving protein molecules from a cell's cytoplasm to the nucleus. It does so by binding to specific recognition sequences, called nuclear localization sequences (NLS).

mammalian protein found in Homo sapiens

classification of membrane proteins including ion channels

family of transport protein supercomplexes consisting of separate complexes in the mitochondrial inner and outer membrane and the space between

The permeases are membrane transport proteins, a class of multipass transmembrane proteins that allow the diffusion of a specific molecule in or out of the cell in the direction of a concentration gradient, a form of facilitated diffusion.

large mitochondrial outer membrane translocase complex that mediates transport of proteins into mitochondrial compartments. TOM transports beta-barrel precursors across the outer membrane and the sorting and assembly machinery (SAM complex) inserts

Vacuolar-type ATPase (V-ATPase) is a highly conserved evolutionarily ancient enzyme with remarkably diverse functions in eukaryotic organisms. V-ATPases acidify a wide array of intracellular organelles and pump protons across the plasma membranes of numerous cell types. V-ATPases couple the energy of ATP hydrolysis to proton transport across intracellular and plasma membranes of eukaryotic cells. It is generally seen as the polar opposite of ATP synthase because ATP synthase is a proton channel that uses the energy from a proton gradient to produce ATP. V-ATPase however, is a proton pump that

class of enzymes

group of transport proteins

Leucine zipper-EF-hand containing transmembrane protein 1 is a protein that in humans is encoded by the LETM1 gene.

group of membrane proteins that catalyze cation uptake and/or efflux driven by ATP hydrolysis

BCL2/adenovirus E1B 19 kDa protein-interacting protein 3 is a protein found in humans that is encoded by the BNIP3 gene.

transportation of substances via membrane

family of transport proteins

protein-coding gene in the species Homo sapiens

group of ion channel proteins that open in response to the binding of extracellular ATP

class of protein complexes