Send to

Choose Destination
Nature. 1990 Aug 30;346(6287):850-3.

'Formins': proteins deduced from the alternative transcripts of the limb deformity gene.

Author information

Department of Genetics, Harvard Medical School, Boston, Massachusetts.


Vertebrate limb formation is an evolutionarily conserved process programmed by an array of morphogenetic genes. As a result of transgene insertion, we previously identified a mutation at the mouse limb deformity (ld) locus that disrupts embryonic pattern formation, resulting in a reduction and fusion of the distal bones and digits of all limbs as well as variable incidence of renal aplasia. We have now characterized the ld locus at the molecular level. It contains evolutionarily conserved coding sequences that are transcribed in adult and embryonic tissues as a complex group of low abundance messenger RNAs created by alternative splicing and differential polyadenylation. The association of these transcripts with the gene responsible for the mutant phenotype was established by demonstrating that they are disrupted in two independently arising ld alleles. We have now deduced the structure of several novel proteins (termed formins) from the long open reading frames encoded by the various ld transcripts. The observation of these different RNA transcripts in different tissues suggests that the formins play a part in the formation of several organ systems.

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Nature Publishing Group
Loading ...
Support Center