clathrin adaptor complex small chain family protein. Identical to Coatomer subunit zeta-2 [Arabidopsis Thaliana] (GB:Q84LG4;GB:Q3E7U0;GB:Q9S7S7); similar to clathrin adaptor complex small chain family protein [Arabidopsis thaliana] (TAIR:AT4G08520.1); similar to nonclathrin coat protein zeta1-COP [Brassica rapa] (GB:BAA92778.1); contains InterPro domain Longin-like; (InterPro:IPR011012); contains InterPro domain Clathrin adaptor, sigma subunit/coatomer, zeta subunit; (InterPro:IPR000804)