Sequence data of six unusual alleles at SE33 and D1S1656 STR Loci.

When profiling a reference dataset of 500 DNA samples for the population of Saudi Arabia, using the GlobalFiler (R) PCR amplification kit, six unusual alleles were detected. At the SE33 locus, four novel alleles were found: 2, 14.3, 20.3, and 38; two alleles at the D1S1656 locus: 7 and 8 had been previously reported, but no published sequence data was available. The D1S1656 alleles were sequenced using ForenSeq DNA Signature Prep with the MiSeq FGx System (Illumina, USA). As the SE33 is not reported by available Massively Parallel Sequencing (MPS) systems, samples that exhibited the unreported alleles were sequenced using BigDye Terminator v3.1 Cycle Sequencing Kit. Here we present the sequence and structure of the previously uncharacterized alleles.