3. Something resembling a string or appearing as a long, thin line: limp strings of hair. 4. A plant fiber. 5. Physics One of the extremely minute objects that form the basis of string theory. 6. a. A set of objects threaded together or attached on a string: a string of beads....
The phosphorylated serine residue is more bulky than unphosphorylated serine; as a result, the four phosphorylated serine residues in the N-terminal tail of phos-NCD tend to form a more extended string owing to the successive repulsions of the bulky phosphate groups as compared with the un-...