The phrase "a unique substrate" is correct and usable in written English.
It can be used in contexts related to biology, chemistry, or materials science to refer to a specific type of surface or medium that is distinct or one-of-a-kind.
Example: "In our experiment, we utilized a unique substrate that allowed for optimal growth of the bacterial culture."
Alternatives: "a distinct medium" or "an exclusive surface".
Assays using fluorescent substrates (fluorescein dibutyrate and fluorescein dilaurate) indicated that these cells displaying mutated enzymes had a lower activity than the cells displaying the wild-type enzymes, but there were several cells which exhibited a unique substrate specificity.
IRS-1 is generally considered to be a unique substrate of IGF-IR, which phosphorylates IRS-1 at Y612.
We identified that PCTAIRE-1 has a unique substrate preference compared with other CDK members and developed a novel peptide substrate termed 'PCTAIRE-tide' [ 6].
These studies have led us to conclude that the LexA repressor-protease possesses a unique substrate preference, with both side-chain and conformational requirements that govern autoproteolysis.
PKCμ/PKD, a Ca2+ independent PKC with a unique substrate specificity which differs from the PKC isoforms [ 22], has primary been related to the PKC family, but cannot be attributed as a member of the PKC family.
There was broad group consensus that chemical systems are of particular interest here, not only because real biological systems are chemical in nature but because the nature of chemistry may present a unique substrate for the instantiation of OoL phenomena.
We thus conclude that, among the FGFR3 mutants associated with skeletal dysplasia, only K650M and K650E possess an unique substrate specificity towards STAT1, possibly through intracellular signaling mechanisms [22].
Because of ANP unique substrate specificity, the enzyme could play a role as a target for chemotherapy of these parasites.
As a result, these residues contribute to the unique substrate specificity of the CTX-M family of enzymes.
Molecular modeling studies have identified a hydrophobic pocket that may bind to the P1 hydrophobic residue, and Arg296 also may form a salt bridge with a charged P1' residue, which may help explain BACE1's unique substrate preferences [18].
Our sample comprising patients with nonepileptic seizures showed a significant degree of psychopathology and absence of a unique character substrate.
