<unk>  is a 244-amino-acid-long polypeptide (protein). There are four distinct regions of<unk> . The first is a short signal sequence that targets the hormone for secretion outside the cell; next is a short region that varies between species; the third is a 65-amino acid region with similarity to collagenous proteins; the last is a globular domain. Overall this protein shows similarity to the complement 1Q factors (C1Q). However, when the 3-dimensional structure of the globular region was determined, a striking similarity to TNFα was observed, despite unrelated protein sequences.
Adiponectin
Leptin
Orexin
Modulin
Thyroglobulin
Progerin
Haptocorrin
Prorenin