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canonical GAT domain found in yeast LAS seventeen-binding protein 5 (Lsb5p) and similar proteins Lsb5p, also called LAS17-binding protein 5, is a Golgi-localized gamma ear-containing Arf-binding protein (GGA)-like protein located to the plasma membrane in an actin-independent manner. It plays important roles in membrane-trafficking events through association with the actin regulators, the yeast Wiskott-Aldrich syndrome protein (WASP) homologue Las17p and the cortical protein Sla1p, the yeast Arf3p (orthologous with mammalian Arf6), and ubiquitin. Lsb5p contains an N-terminal VHS (Vps27p/Hrs/STAM)-domain and a GAT (GGA and TOM1) domain. In contrast to GGA proteins, Lsb5p harbors a C-terminal NPF (Asn-Pro-Phe) motif, but does not have either a GAE (gamma-adaptin ear homology) domain or a clathrin-binding motif. The canonical GAT domain is a monomeric three-helix bundle that binds ubiquitin. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",