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[[Image:Vancomycin Modules.png|thumb|left|Figure 1: Modules and Domains of Vancomycin assembly.]] Vancomycin biosynthesis occurs via different nonribosomal protein synthases (NRPSs).<ref name="pmid18414736">{{cite journal |author=Samel SA,

...bound by [[protein]] while the rest remains in the active, ionized state; protein binding is concentration-dependent. Saturation of binding sites leads to mo ...First DataBank}}</ref> Aspirin is known to displace a number of drugs from protein binding sites in the blood, including the [[anti-diabetic drug]]s [[tolbuta

...t is occasionally attached to proteins and the resulting [[arabinogalactan protein]] (AGP) functions as a signalling molecule between cells, as well as glue t ...f some of the 6-linked Gal''f'' residues. There are three major structural domains for arabinan; one consists of linear 5-linked α-'''D'''-Ara''f'' residues,

...f all the domains are aligned, so that the magnetic effects of neighboring domains reinforce each other. Although each domain contains billions of atoms, they ...mans. The color of blood is due to the [[hemoglobin]], an iron-containing protein. As illustrated by hemoglobin, iron often is bound to [[Cofactor (biochemi

...''equilibrium unfolding''' is the process of [[protein folding|unfolding a protein or RNA molecule]] by gradually changing its solution conditions, i.e., its ...r small, single [[structural domain]]s of proteins (Jackson, 1998); larger domains and multi-domain proteins often exhibit intermediate states. As usual in [

...[[5-HT3 receptor|5-HT₃ receptors]] that are composed of five [[protein subunit]]s which form a pentameric arrangement around a central pore. There ...xtracellular large N-terminal domain; three highly conserved transmembrane domains; a cytoplasmic loop of variable size and amino acid sequence; and a fourth

...Each of the subunits has six [[hydrophobic]] [[alpha helix|alpha helical]] domains which insert into the cell membrane. A loop between the fifth and sixth tr In addition, SK potassium channels are tightly associated with the protein [[calmodulin]] which accounts for the calcium sensitivity of these channels

...he X-ray structure of an antiparallel dimer of the human amyloid precursor protein E2 domain | journal = Mol. Cell | volume = 15 | issue = 3 | pages = 343–5 ...et al.| title = Iron-Export Ferroxidase Activity of β- Amyloid Precursor Protein Is Inhibited by Zinc in Alzheimer's Disease | journal = Cell | year = 2010

...tribution of a small-conductance calcium-activated potassium channel (SK3) protein in skeletal muscles from myotonic muscular dystrophy patients and congenita ...itle=SK3 trafficking in hippocampal cells: the role of different molecular domains. |journal=Biosci. Rep. |volume=26 |issue= 6 |pages= 399–412 |year= 2006 |

[[Image:PBB Protein HCN1 image.jpg|thumb|right|200px|Ribbon model of the HCN1 channel]] ...ted title -->]</ref> Each subunit comprises six membrane-spanning (S1–6) domains which include a putative voltage sensor (S4) and a pore region between S5 a

These processes can take milliseconds (for ion flux), minutes (for protein- and lipid-mediated kinase cascades), hours, or days (for gene expression). ...ysiol.64.082701.102219}}</ref> and bitter and sweet tastes stimulating [[G protein-coupled receptor|taste receptors]] in the [[taste buds]].<ref name=wong>{{c

...l.png|thumb|350px|Schematic diagram of an ion channel. '''1''' - channel [[protein domain|domain]]s (typically four per channel), '''2''' - outer vestibule, ' '''Ion channels''' are pore-forming [[protein]]s that help establish and control the small [[voltage]] [[gradient]] acros