I extracted 3'UTR sequences from UCSC table browser and it gave me the sequences with the headers
>hg19_refGene_NM_032291 range=chr1:67208779-67210768 5'pad=0 3'pad=0 strand=+ repeatMasking=none >hg19_refGene_NM_032785 range=chr1:48998527-48999844 5'pad=0 3'pad=0 strand=- repeatMasking=none
etc. I just want to know what does this strand + and - means? If have to search for a motif then for this - strand , do I need to convert it into + strand? or does it simply mean that the gene is present on the reverse strand of the chromosome?