This TALEN-induced allele has a 1449 bp deletion from distal exon 50 through mid-intron 53-53 with a 6 bp insertion, and encodes two cDNA, one lacking 151 amino acids from mid-non-collagenous domain 3 through most of non-collagenous domain 1, the other has a stop codon midway through non-collagenous domain 3, which deletes the terminal 127 amino acids.