 | strongly acidic oxygen (CPK) |
 | weakly acidic oxygen (modified) |
 | strongly basic nitrogen (modified) |
 | weakly basic nitrogen (CPK) |
 | backbone carbon (CPK) |
 | sidechain (R-group) carbon (modified) |
 | sulfur (CPK) |
 | chlorine (CPK) |
 | hydrogen (CPK) |
| strongly acidic oxygen (CPK) |
| weakly acidic oxygen (modified) |
| strongly basic nitrogen (modified) |
| weakly basic nitrogen (CPK) |
| backbone carbon (CPK) |
| sidechain (R-group) carbon (modified) |
| sulfur (CPK) |
| chlorine (CPK) |
| hydrogen (CPK) |
| © | Duane W. Sears |
| July 26, 1997 |