The phrase "and is expressed by" is correct and usable in written English.
It can be used to indicate how a particular idea or concept is articulated or conveyed in a specific manner.
Example: "The theory of relativity is complex and is expressed by the equation E=mc²."
Alternatives: "and is conveyed through" or "and is articulated by".
Ssx2ip (Synovial sarcoma, X breakpoint 2 interacting protein) was found over-expressed in some AML patients and is expressed by K562 erythroid cells [ 45].
The expression of FABP-4 is developmentally regulated by fatty acids and is expressed by mature adipocytes.
IRF8/ICSBP is induced by type II IFN and is expressed by hematopoietic cells, as well as other tissues.
Cj0977 is a recently identified virulence factor in C. jejuni and is expressed by a σ28 promoter that controls late genes in the flagellar regulon.
Tropical Pacific is dominated by a single mode of interannual climate variability, which reflects the coupling of the Ocean and the atmosphere and is expressed by the El Niño/Southern Oscillation (ENSO) phenomenon.
The irregularity of the beam in the forward direction of the vehicle is assumed to be a Gaussian random process, and is expressed by a first order linear differential equation with white noise excitation.
The result measured using the oscillating drop method agrees very well with that measured using the sessile drop method, and is expressed by the following equation: γ = 733 − 0.062(T − 1687), where γ is the surface tension (mN/m) and T is the temperature (K).
Membrane permeability reflects senescence and deterioration of plant tissues and is expressed by relative electric conductivity.
end{aligned} (6) We suppose that it is a saturated regime and is expressed by S_{o}+S_{g}=1.
Drag force is proportional to the relative velocity between the base fluid and nanoparticle and is expressed by [12]: (10).
The NBO approach describes the bonding anti-bonding interaction quantitatively and is expressed by means of second-order perturbation interaction energy E(2) [50 53].
