Isolated DNA molecules comprising a nucleotide sequence encoding murine son of sevenless gene 1 (mSOS1) polypeptide and comprising a nucleotide sequence encoding murine son of sevenless gene 2 (mSOS2) polypeptide are disclosed, as well as isolated mSOS1 polypeptide and isolated mSOS2 polypeptide, and diagnostic methods using the same.
The present invention provides isolated nucleic acid sequences and expression vectors encoding the Goodpasture antigen binding protein (GPBP), substantially purified GPBP, antibodies against GPBP, and methods for detecting GPBP.