Genomic and cDNA database matches for NBC4 . Arrows indicate the direction of transcription. Solid black rectangles show the location of ORFs. (a) The AF207661 NBC4 cDNA with selected exon locations and sequence coordinates marked. (b) Fully sequenced (AC005041, AC006030), BAC-end (AQ389587), and HTGS draft (AC073263) genomic GenBank accessions matching portions of the cDNA are shown. (c) cDNA sequence matches, with sequence coordinates shown along each match. The DCTN1 match is contiguous, whereas the MTHFD2 match is not. In both cases, an untranslated region of AF207661 matches a portion of the other cDNA's ORF and some of its 3' UTR.