31 results found

Search Results for: transmembrane protein

Transmembrane proteins

transmembrane protein (Science: cell biology) A protein subunit in which the polypeptide chain is exposed on both sides of... Read More

Rough endoplasmic reticulum

Definition noun plural: rough endoplasmic reticula (cell biology) A type of endoplasmic reticulum wherein polyribosomes... Read More

Endoplasmic reticulum

Definition noun plural: endoplasmic reticula (cell biology) A membrane-bound organelle that occurs as labyrinthine,... Read More

Carrier protein

Carrier protein is a type of cell membrane protein involved in facilitated diffusion and active transport of substances out... Read More

Transmembrane protein

Definition noun, plural: transmembrane proteins A protein that spans the entire biological... Read More

Plasma membrane

Do all cells have a plasma (or cell) membrane? Yes, all cells have a biological membrane that separates the protoplasm from... Read More

Membrane protein

Definition noun, plural: membrane proteins A type of protein that is attached to, or associated with, a biological... Read More

Integral membrane protein

Definition noun A protein molecule (or assembly of proteins) that is permanently attached or firmly anchored in the plasma... Read More

Cell Structure

The interior of the cell is divided into the nucleus and the cytoplasm. The nucleus is a spherical or oval-shaped structure... Read More

Integral protein

Definition noun, plural: integral proteins A protein molecule or protein assembly permanently attached in biological... Read More

Genetic Mutations

Reviewed by: Mary Anne Clark, Ph.D. Genetic Mutations Genetic mutations are inherited variations in an... Read More

Sarcolemma

Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More

Cytoskeleton

Definition noun plural: cytoskeletons cy·to·skel·e·ton (cell biology) The lattice or internal framework of a cell... Read More

Facilitated diffusion

Facilitated diffusion is the transport of substances across a biological membrane from an area of higher concentration to an... Read More

Brown adipose tissue

Definition noun, plural: brown adipose tissues A type of adipose tissue found in mammals that is brownish as opposed to... Read More

Microfilament

Definition noun plural: microfilaments mi·cro·fil·a·ments, mī'krō-fil'ă-mĕnts A thin, helical, single-stranded... Read More

Polarization

Definition noun (general) The condition of polarity (biology) The process or act of producing positive and negative... Read More

Cell matrix

Definition noun plural: cell matrices cell ma·trix, ˈmeɪtɹɪks An insoluble, dynamic gel in the cytoplasm, believed... Read More

Palmitic acid

Definition noun, plural: palmitic acids A 16-carbon fatty acid, with the formula: CH3 (CH2)14 COOH Supplement A fatty acid... Read More

Transportase

transportase --> transport protein (Science: protein) A class of transmembrane protein that allows substances to cross... Read More

Cell membrane

Definition noun plural: cell membranes ˈmembɹeɪn The cell’s outer membrane made up of a two layers of phospholipids... Read More

Simple squamous epithelium

Simple Squamous Epithelium Definition Simple squamous epithelium, also known as simple squamous epithelial tissue or... Read More

Gated ion channel

(Science: physiology) transmembrane proteins of excitable cells, that allow a flux of ions to pass only under defined... Read More

Uniport

Definition noun The transport of molecule or ion across a membrane through facilitated diffusion without coupling to the... Read More

Topology

Definition noun, plural: topologies (Study or analysis of) Configuration of parts or elements Supplement Topology is used in... Read More

Hyperpolarization

Definition noun The process or act of making the membrane potential of a cell more negative Supplement Hyperpolarization is... Read More

Beta barrel

Definition noun, plural: beta barrels A large β-sheet that twists and coils to form a closed structure where the first... Read More

Alpha-helix

Definition noun, plural: alpha helices A right-handed coiled conformation common in many proteins in which the resulting... Read More

Pleiotropy

Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More

Diffusion

Diffusion Definition Diffusion is the net passive movement of molecules or particles from regions of higher to regions of... Read More

Cystic fibrosis

Definition noun An autosomal recessive disorder caused by mutations in the gene that encodes for cystic fibrosis... Read More