Research Article

Secondary Structure Preferences of Mn2+ Binding Sites in Bacterial Proteins

Table 2

Probabilities of amino acids and secondary structure elements occurrence near the aspartic acid binding Mn+2. Significantly overrepresented amino acids and secondary structure elements are written in bold font; significantly underrepresented ones are written in italic font.

Position
−5−4−3−2−10+1+2+3+4+5

Secondary structure elements
Alpha helix0.1796 0.2099 0.2427 0.2757 0.3284 0.3450 0.3750 0.3923 0.4062 0.4153 0.4229
Helix 3/10 0.1435 0.1510 0.1379 0.1846 0.1902 0.3374 0.38900.56800.55790.54970.5340
Beta strand0.71680.75010.76170.77970.75860.74870.61000.55170.52500.4016 0.4096
Random coil0.52460.4327 0.4106 0.4193 0.49080.52850.57480.56600.57710.62640.6217

Amino acid residues
Gly0.63700.55580.3270 0.47310.64600.58600.47830.66720.49980.5666
Ala0.48420.3034 0.49500.3750 0.45140.53730.3277 0.55140.3597 0.5503
Arg0.2299 0.35770.1282 0.47430.1549 0.1403 0.47930.1268 0.50270.5420
Pro0.51540.36580.1608 0.37390.2431 0.2746 0.2586 0.41310.68450.5039
Asp0.53930.44360.3350 0.67260.50700.42260.66020.51080.61330.5779
Glu0.2582 0.3646 0.1760 0.0657 0.43430.42010.3424 0.48470.46100.4299
Ser0.47190.51630.40480.47250.69100.63800.56890.50030.57700.6512
Thr0.38820.1855 0.47230.64610.52660.64850.40650.59310.53520.4776
His0.48050.63180.65700.70830.1879 0.75990.72520.75580.69280.5135
Gln0.48850.3112 0.3250 0.40540.33040.56780.33780.57580.49600.5348
Leu0.60350.69470.61820.49340.55530.42010.53450.51340.47610.4477
Val0.62130.57650.71970.48990.61910.58510.40180.46800.40450.4777
Cys0.61840.55200.55290.46800.75900.40530.56050.58400.39180.3335
Trp0.0000 0.0000 0.44450.42430.50590.48740.73620.0000 0.26770.6925
Phe0.2463 0.42760.50890.49540.61100.57020.55670.48720.45160.4760
Tyr0.45260.54460.59390.50950.35090.37620.31930.50800.48890.3463
Met0.51730.32230.60560.60570.46990.57280.59430.29460.66260.4124
Ile0.60010.62240.73700.58520.48860.48260.49420.49680.49140.3347
Asn0.45510.59310.0000 0.59430.37500.36710.68580.40670.47420.4787
Lys0.39300.36370.2196 0.2408 0.0000 0.1701 0.51780.1870 0.2516 0.4428