TCDB is operated by the Saier Lab Bioinformatics Group

The Unconventional Protein Secretion System, UPSS (Giuliani et al., 2011).  Secretes FGF1 and Epimorphin (syntaxin 2) (Hirai et al. 2007)

UPSS of Mus musculus
1) S100A13 Ca2+ binding protein (98aas)(P97352)
2) p40Syt1 synaptogamin1 (homologous to 8.A.30.1.1) (421aas)(P46096)
3) Small conductance Ca2+-activated K+ channel protein 1 (very similar to SK2 (1.A.1.16.1) (537aas) (Q9EQR3)
4) Annexin II (A2) (339aas) (P07356)
5) FGF1 Fibroblast Growth Factor; Heparin-binding growth factor (155aas) (P61148)
6) Golgi reassembly - stacking protein 2, Gorasp2 or GRASP (Q99JX3)