TABLE 2

Amino acid sequence homology (% identity/similarity) of the Arabidopsis 20S α (α1/PAA-α7/PAG) and β (β1/PBA-β7/PBG) subunitsa,b

α SubunitsPAB1PAC1PAD1PAE1PAF1PAG1
PAA136/50 (234)39/50 (207)39/48 (231)38/52 (231)34/44 (229)32/50 (176)
PAB137/50 (212)40/52 (235)36/52 (234)37/48 (235)34/47 (183)
PAC144/56 (200)44/56 (214)39/50 (212)33/49 (209)
PAD144/57 (200)39/47 (198)35/49 (173)
PAE147/56 (179)33/48 (201)
PAF139/49 (171)
β SubunitsPBB1PBC2PBD1PBE1PBF1PBG1
PBA133/45 (180)18/30 (194)25/34 (160)33/42 (191)25/34 (198)21/31 (193)
PBB119/33 (187)22/33 (160)33/39 (172)26/36 (146)20/32 (186)
PBC219/29 (162)26/35 (185)33/45 (129)20/32 (186)
PBD129/38 (153)21/32 (142)21/33 (151)
PBE126/34 (146)20/32 (201)
PBF123/33 (147)
  • a Determined by UW-GCG program Bestfit.

  • b Numbers in parentheses are best-matched peptide lengths for each pairwise α and β subunit comparison.