The phrase "a mutant of a" is correct and usable in written English.
It can be used when referring to a specific type of mutant that is derived from or related to something else, often in scientific or fictional contexts.
Example: "The scientist discovered a mutant of a common plant species that exhibited extraordinary growth characteristics."
Alternatives: "a variant of a" or "a form of a".
By using a high-throughput screening method, a mutant of a uropathogenic Escherichia coli strain affected in the rapA gene was isolated.
Following a site-directed random mutagenesis and the rapid screen, we identified a mutant of a voltage probe Mermaid, exhibiting positively shifted voltage sensitivity.
Context: In mutation analysis, a mutant of a software artifact, either a program or a model, is said equivalent if it leaves the artifact meaning unchanged.
In order to address this question, we used a mutant of a subunit unique to the Rpd3S histone deacetylase complex, rco1Δ, which does not have HDAC function [5], [11].
KikGR, a mutant of a fluorescent protein cloned from the stony coral Favia favus, emits bright green fluorescence in its initial state, but is switched into a red emitting species upon illumination with UV or violet light [11].
A mutant of a gene coding belonging to this family of transmembrane transporters in M. graminicola showed a reduced virulence phenotype (Table 2).
Nada, H. & Furukawa, Y. Growth Inhibition Mechanism of an Ice Water Interface by a Mutant of Winter Flounder Antifreeze Protein: A Molecular Dynamics Study.
We constructed over-expression (OX) lines and RNA-interference (Ri) lines, and selected a mutant of OsNPF7.2, a low-affinity nitrate transporter.
This vector harbors a codon-optimized gene encoding a mutant of phosphite dehydrogenase (PTDH) with an N-terminal His-tag (Torres Pazmiño 2009b).
In a competition experiment between wild-type strain Nissle 1917 and a mutant of this strain with a deletion in the yersiniabactin operon, the wild-type overgrew the mutant at pH 7.0 and 7.6 and not at pH 5.6.
In rice, a mutant of this gene, named c68, carries a nonsense mutation in the kinase domain (Huang et al. 2012).
