Skip to main content

Table 1 Shows the frequency of occurrence for each polar amino acid in the 233 conserved positions.

From: On the evolutionary conservation of hydrogen bonds made by buried polar amino acids: the hidden joists, braces and trusses of protein architecture

Amino Acid Number
Arg 98
Asn 133
Asp 313
Cys 161
Gln 68
Glu 86
His 121
Lys 39
Ser 155
Thr 174
Trp 92
Tyr 144
  1. The analysis only considered conserved positions containing polar amino acids therefore the frequency of occurrence for non-polar amino acids is zero.