Table 2.

QGRS Mapper

Component	Function
Retrieve	Query, retrieve and parse gene information from NCBI or obtain nucleotide sequence from user.
Search	Identify all QGRS in a given sequence.
Map	QGRS are mapped relative to locations such as splice sites in introns/exons, and poly(A) site. If original sequence was provided by user in raw or FASTA format, this step is omitted.
Score	QGRS are assigned scores related to their potential to form G-quadruplexes
Overlap	Overlapping QGRS are eliminated using a greedy algorithm
Results	Display summary of QGRS analysis in three forms: Gene View, Data View and Graphics View