In addition SSCRs have specific sequence features: they have low adenine-content, are enriched in certain motifs, and tend to be present in the first exon at a frequency that is higher than expected.
Ademais o SSCRs ten características específicas na súa secuencia: ten un baixo contido en adenina, está enriquecido en certos motivos, e tende a estar presente no primeiro exón nunha frecuencia maior do agardado .