Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
mutant is at
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "mutant is at" is correct and usable in written English.
It can be used to indicate the location or status of a mutant in a specific context, such as in a story or a game. Example: "The mutant is at the abandoned warehouse, waiting for the next mission."
✓ Grammatically correct
Science
Alternative expressions(4)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
9 human-written examples
In particular we focus on the case in which t, the "wild type", is predominantly abundant and t′ the "mutant" is at very low concentrations compared to t.
The position of the point mutation in the z3 mutant is at the third exon and represented by a black arrowhead.
Science
This finding also suggests that the cell proliferation defects and failed embryogenesis in Pik3c3 mutant is at least partially due to the loss of mTOR signaling.
Science
In contrast, when the mutant is at r wt 0, the mutated site's springs will be stressed (stretched or compressed).
Science
However, the basic rate of increase of the solely vertically transmitted parasite (R1) is less than one when the mutant is at equilibrium prevalence (z*).
Science
The kinase activity of this BTK mutant is at least 300-fold less potently inhibited by QL47 relative to wild-type BTK.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
51 human-written examples
The absorption and action spectra peaks of this mutant are at 608��nm and 605 nm, respectively, which are red-shifted by about 20 nm as compared to wild-type Chrimson (Fig. 6a, b and Supplementary Figure 9a and b).
Science & Research
As expected, binding of the Adr1-S98D mutant was at or below background levels, even when over-expressed from a 2μ plasmid under ADH1 promoter-control (data not shown).
Science
This inability to invade when the mutant was at high levels of relatedness is a result of the high fitness cost of the cheater mutation.
Science
Os Mutantes (the Mutants) were at the center of the late-60's tropicalia movement, a particularly Brazilian mixture of intellectual ferment, pop novelty-seeking and try-anything experimentalism.
News & Media
Turnover rates for luciferin ME and H metabolism by CYP2C9 and mutants were at least one order of magnitude higher in experiments with membranes compared to whole cells, consistent with impaired product egress from cells.
Expert writing Tips
Best practice
When describing scientific findings, clearly specify the location or context where the "mutant is at" to ensure clarity and reproducibility of results. For example, "the mutant is at the third exon" provides more precise information than simply stating "the mutant is present".
Common error
Avoid using overly general descriptions when specifying where the "mutant is at". Instead of saying "the mutant is at a certain location", provide specific details like "the mutant is at the active site of the enzyme" to enhance understanding.
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "mutant is at" functions primarily as a descriptive phrase, indicating the location or state of a mutant. Ludwig AI confirms this is correct usage, and examples show it specifying the location of mutations or the presence of mutants in various biological contexts.
Frequent in
Science
100%
Less common in
News & Media
0%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
The phrase "mutant is at" serves as a descriptive marker, pinpointing the location or state of a mutant in a scientific context. Ludwig AI confirms its correctness and common use. It's frequently found in academic and scientific papers, underlining the need for precision in scientific communication. For clarity, using specific location details enhances understanding and replicability of results. Although alternatives such as ""mutant is located in"" exist, the simplicity of "mutant is at" makes it a common choice in the scientific community.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
mutant resides in
Replaces "is at" with "resides in", implying a more permanent or inherent location.
mutant is located in
Replaces "is at" with "is located in", providing a more formal and explicit statement of location.
mutant exists within
Replaces "is at" with "exists within", suggesting presence within a specific environment or context.
mutant occurs in
Replaces "is at" with "occurs in", indicating the context or situation where the mutant is found.
mutant is present in
Replaces "is at" with "is present in", highlighting the existence of the mutant within a certain area.
mutant can be found in
Replaces "is at" with "can be found in", suggesting the possibility of discovering the mutant in a particular place.
mutation site is
Switches from the mutant itself to the specific location of the mutation.
mutant's position is
Focuses on the mutant's position, offering a more specific detail about location.
location of the mutant is
More formally specifies the location, suitable for technical documentation.
mutant phenotype manifests in
Shifts focus to how the mutant's characteristics appear in a specific environment.
FAQs
How can I specify the location of a mutant in scientific writing?
To specify the location of a mutant, use precise terms such as "the mutant is at the third exon" or "the mutant is located at the active site". Providing specific details ensures clarity and aids reproducibility.
What are some alternatives to the phrase "mutant is at"?
Alternatives to "mutant is at" include "mutant is located in", "mutant resides in", or "mutant exists within", depending on the context.
Is it grammatically correct to say "mutant is at"?
Yes, it is grammatically correct to use "mutant is at" to indicate the location or state of a mutant within a given context, as Ludwig AI confirms.
What's the difference between saying "mutant is at" versus "mutant is located at"?
While both phrases are correct, "mutant is located at" is more formal and explicit, whereas "mutant is at" is simpler and more commonly used. The choice depends on the desired level of formality and the specific context.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested