Ttc21b 深入了解基因-突变-疾病-模型全维度数据，尽在Rare Disease Data Center（RDDC）综合数据库

MGI:1920918 Homozygous mutation of this gene is embryonic lethal. Mutant embryos exhibit several deformities including polydactyly, microphthalmia, irregular shape of the long bones, rib fusion and truncation, neural tube defects, and abnormal brain structure.