This document describes three DNA vectors: 1) pPICZo IgNAR+ which is a 4721 bp vector for producing monoclonal shark antibodies in yeast using methanol induction. 2) Scyliorhinus canicula IgNAR-dV4 which is a vector for producing shark antibodies in yeast with primers that were Gibson assembled and contain EcoRI overhangs. 3) spIkE E-1 which is a 6681 bp vector for producing the SARS-CoV-2 spike protein in E. coli for use in ELISA testing to be resilient to variants.