The phrase "accessory region" is correct and usable in written English.
It can be used in contexts related to biology, anatomy, or design, where it refers to a supplementary or additional area associated with a primary structure or function.
Example: "The accessory region of the organ plays a crucial role in its overall functionality and support."
Alternatives: "supplementary area" or "auxiliary region".
The accessory region was inserted between the tra region and parA, and presented the typical IncP-1ε ISPand and Tn402-like transposon modules.
As can be seen in Fig. 3 the PPI-1v accessory region, which consists of region 4, is a section of divergent sequence.
In addition, this alignment shows that PPI-1v consists of two variable components: the pezAT region (region 3) and an accessory region (region 4) (Fig. 4).
N-terminal truncations of the Adr1 DBD showed that the site of phosphorylation was within amino acids 94 160, which includes the C-terminal portion of the proximal accessory region (PAR) and the Zn-fingers (Figure 1C, D).
In the highly virulent strains, the accessory region is 8-kb in size and includes a putative operon encoding hypothetical proteins and metabolic enzymes such as 3-hydroxyisobutyrate dehydrogenase (3HIBDH), prephenate dehydratase (PDT) and UDP-glucose 4-epimerase (GalE).
The Adr1 DBD contains two canonical C2H2 zinc fingers (amino acids 99 160) and an amino terminal region of approximately 20 amino acids called PAR (proximal accessory region) that is essential for high affinity binding [14], [15].
The architecture of the accessory regions implies the occurrence of multiple insertions and deletions.
Blomberg et al did not identify a unique pattern of accessory regions among invasive disease isolates and concluded that redundancy existed amongst the accessory regions required to cause invasive pneumococcal disease [32].
Moreover, recent studies indicate that a repertoire of accessory regions can differ even among isolates of the same clone [24].
These data may be explained by high levels of recombination and functional redundancy amongst the accessory regions within the pneumococcal genome.
The accessory regions were determined by a combination of two different methods: GC3 and IVOMs.
