The phrase "a stem configuration" is correct and usable in written English.
It can be used in contexts related to biology, botany, or engineering, where the structure or arrangement of a stem is being described.
Example: "The researchers focused on a stem configuration that maximized nutrient absorption in the plant."
Alternatives: "a stem structure" or "a stem arrangement".
Two common local variants of the LL motif exist, one in which the +139 site occurs in a 5-nucleotide stem next to a bulge, and another where an unpaired +140 U next to +139 loops out (Fig. 6), for a 3-loop-2 stem configuration.
Among basic nouns, for example, the pattern of the word seldom has any identifiable grammatical value; observe the varying syllable structures and vocalization patterns of Arabic kalb- 'dog' and bn- 'son,' in which decomposition along root-pattern lines (e.g., taking the stem kalb- to consist of a root √klb for the stem configuration CaCC) serves no grammatical purpose.
To accelerate finding average PU value for an element we calculated them only for the contexts of 11, 15, 20, 25 and 30 nt according to [ 2], a method which produced consistent results for perfect loop configuration (PU = 1), perfect stem configuration (PU = 0) and a very similar PU value for the example in [ 2] for natural pre-mRNA structure supporting TCTCTCT element.
More recently, this formed the basis to hypothesize that this domain readily adopts a stem protein configuration of 'open' flexibility towards new effector substrates [19].
Around the OL, the IR sequence of 10 12 bp, that could form a stem-loop configuration is conserved among vertebrate species and is also proposed to be required for the initiation of replication [54].
When Mayer et al. [4] mutated tandem G-C pairs in the pRNA (at base pairs corresponding to sites −59 to −61 and −118 to −120 in the primary sequence used by us), they observed a major effect on secondary structure, elimination of a stem-loop configuration, and abrogation of specific binding to the TIP5 protein in the nucleolar remodelling complex.
These flexible connectors enabled the pyrene moieties to intercalate into the stem of the MB, which resulted in efficient quenching of the pyrene fluorescence in a stem-closed configuration (probably because of an electron-transfer mechanism [ 27]).
At low temperatures (30°C), the extended secondary structure of the 127-nucleotide 5′ UTR of a subset of prfA transcripts (those expressed from the prfAP1 promoter) includes a stem-loop configuration that prevents formation of a translation initiation complex.
The P1 and P3 stems are easily obtained with vsfold5, but P2 and P7 (the neck of the structure) appear quite difficult to obtain without introducing corrections that address these complex coaxial stacking and parallel stem configurations as well as permitting a variable Kuhn length in the design of the program.
Its hexagonal appearance with trimmed edges in site of Adams' bow significantly differs from all available stem configurations in veterinary medicine and is intended to provide rotational and a high primary stability.
