"mutation at position" is a correct and usable phrase in written English.
It is used to refer to the change in a gene at a specific point in its sequence. For example, "Researchers found a mutation at position 321 on the gene responsible for eye color."
Thus, in total, seven clones contained a mutation at position 76 and two at position 72.
The thermostability of the recombinant enzyme was also influenced by mutation at position 201.
A mutation at position 9950 nt (G/A, locus A) was found among individuals in each population.
ZAβ3 is a dimer of affibody subunits linked via a disulfide bridge involving a selected cysteine mutation at position 28.
All of the resistance calls were due to detection of genes, except for ciprofloxacin where a S->L mutation at position 84 in the gene gyr was detected.
KIR2DL1*014 (green) is not expressed at the cell surface because of a mutation at position 179 that prevents proper assembly of the receptor.
It was identical to the consensus sequence except for a mutation at position 7. Another cleaved GUC and two more, cleaved GUA.
Proline mutant F88P is one exception, as the proline mutation at position 88 reduced the mechanical stability of TNfn3 significantly and led to unfolding forces of < 20 pN.
Electrophysiological recordings indicated that an Ala to Gly mutation at position 7 increased IC50-values from the nanomolar range to the micromolar range.
A single point mutation at position 131 replace an arginine (R) with a histidine (H) that can affect the affinity of the receptor for human IgG subclasses.
As a model system, human copper, zinc superoxide dismutase mutant containing glycine to alanine mutation at position 93 (SOD1G93A) was used.
