Table A- 2. Oligo Tucleotide description. Primer Cone.l Sense2 Description Tm3 TB1 0.892 S addition of histidine-epitope tag (HHHHHH) to the N- 85 TB2 0.606 A terminus of the b subunit; +Sphl TB3 0.329 S addition of HA-epitope tag (YPYDVPDYA) to the N- 85 TB4 0.414 A terminus of the b subunit; +Ndel TB5 2.846 S addition of Sphl site 3' of the b subunit for cloning 78 TB6 2.236 A purposes; + Sphl TB7 1.95 1 S mutation of Sphl site 3' of the b subunit and addition 78 TB8 1.593 A of a favorable "ATG" prior to next gene; -Sphl TB10 0.308 S 6cysl40 ser mutation; +EcoRI; -Clal 80 TB11 0.650 A TBl2 0.977 S bcys20 ser mutation; -SnaBI 79 TBl3 1.538 A TBl4 1.151 S bgly43 cys mutation; -Bspl285I 77 TBl5 1.446 A TBl6 1.100 S bser84 cys mutation; -Xbal 75 TBl7 1.290 A TBl8 1.366 S 6cys64 ser mutation 82 TBl9 1.242 A TB20 2.684 S sqences b in the sense (not a good one) 75 TB21 2.422 S seuences 6 in the sense direction 81 TB23 1.380 S acys90 ser mutation; +BamHI 77 TB24 1.640 A TB25 5.016 S seuences a in the sense direction 78 TB27 0.886 S mutations to create Shine Delgarno sequence upstream 76 TB28 1.23 5 A of the 2nd b gene in "mix" plasmids TB29 5.279 A sqences b in the inverse complement direction 79 TB30 4.334 S deletion of residues 1-24 of b subunit to create "bsol" 85 TB31 4.608 A TB32 8.301 S addition of histidine-epitope tag (HHHHHHHHHH) to 78 TB33 7.618 A the N-terminus of the "bsol" subunit TB36 0.439 S mutations to create a better Shine Delgarno sequence 78 TB37 0.477 A upstream of the 2nd b gene in "mix" plasmids TB38 12.33 S addition of V5-epitope tag (GKPIPNPLLGLDST) to 79 TB39 9.310 A the C-terminus of the b subunit; +SacI TB40- 4.522 S deletion of last 4 amino acids at the C-terminus of the 76 TB41- 4.891 A b subunit; +HindlIII TB40+ 1.109 S duplication of last 4 amino acids at the C-terminus of 78 TB41+ 0.983 A the b subunit; +SacI SConcer tration of stock 01 gonucleotide in Clg/CIl, stored in the -200C. 2 Direction of the primer: S, sense; A, antisense. 3 Melting temperature in ag.