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Mutations in lectin complement pathway genes COLEC11 and MASP1 cause 3MC syndrome.

Nature genetics | Mar 25, 2011

http://www.ncbi.nlm.nih.gov/pubmed/21258343

3MC syndrome has been proposed as a unifying term encompassing the overlapping Carnevale, Mingarelli, Malpuech and Michels syndromes. These rare autosomal recessive disorders exhibit a spectrum of developmental features, including characteristic facial dysmorphism, cleft lip and/or palate, craniosynostosis, learning disability and genital, limb and vesicorenal anomalies. Here we studied 11 families with 3MC syndrome and identified two mutated genes, COLEC11 and MASP1, both of which encode proteins in the lectin complement pathway (collectin kidney 1 (CL-K1) and MASP-1 and MASP-3, respectively). CL-K1 is highly expressed in embryonic murine craniofacial cartilage, heart, bronchi, kidney and vertebral bodies. Zebrafish morphants for either gene develop pigmentary defects and severe craniofacial abnormalities. Finally, we show that CL-K1 serves as a guidance cue for neural crest cell migration. Together, these findings demonstrate a role for complement pathway factors in fundamental developmental processes and in the etiology of 3MC syndrome.

Pubmed ID: 21258343 RIS Download

Mesh terms: Abnormalities, Multiple | Animals | Cell Movement | Cleft Lip | Cleft Palate | Collectins | Complement Pathway, Mannose-Binding Lectin | Craniofacial Abnormalities | Craniosynostoses | Epistasis, Genetic | Mannose-Binding Protein-Associated Serine Proteases | Mutation | Neural Crest | Syndrome | Zebrafish

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Associated grants

  • Agency: Wellcome Trust, Id: 082311
  • Agency: Medical Research Council, Id: G0801843
  • Agency: Medical Research Council, Id: G0802138
  • Agency: Wellcome Trust, Id:

Comparative Toxicogenomics Database (Data, Disease Annotation)

ZFIN (Data, Gene Expression)

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