Contacts of the helix formed by residues 127 - 157 (chain A) in PDB entry 3A68
Residue contacts within the protein are
derived with the CSU software (Sobolev V., Sorokine A.,
Prilusky J., Abola E.E. and Edelman M. (1999) Automated
analysis of interatomic contacts in proteins.
Bioinformatics, 15, 327-332). A
short description of the analytical approach
is given at the end of the page.
Note:
Non-standard 3 letter residue
codes indicate a heterogroup. To identify
and analyse, use LPC software
Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC - hydrophobic-hydrophilic contact (destabilizing contact)
+/- - indicates presence/absence of a specific contacts
* - indicates residues forming contacts by their side chain
(including CA atoms)
Residues in contact with GLY 127 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
122A ASP* 4.8 1.1 - - - -
123A HIS* 3.0 19.7 + - - -
125A ASP 3.4 1.6 - - - -
126A LYS* 1.3 83.3 - - - +
128A ASP* 1.3 67.1 + - - -
129A ALA 3.4 2.9 + - - -
130A LEU 3.6 0.6 + - - -
131A HIS* 3.1 20.3 + - - +
193A LYS* 4.2 18.9 - - - +
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Residues in contact with ASP 128 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
69A TYR* 4.1 8.6 + - + +
70A PHE* 3.6 15.9 - - + -
75A VAL* 3.6 15.9 - - - +
77A LEU* 3.9 1.4 - - - +
121A PHE 3.5 22.3 - - - +
122A ASP* 3.8 21.9 + - - +
127A GLY* 1.3 71.4 - - - -
129A ALA* 1.3 71.9 + - - +
131A HIS 3.4 0.2 + - - -
132A ALA* 2.9 32.6 + - - +
190O ARG* 3.2 40.6 + - - -
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Residues in contact with ALA 129 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
70A PHE* 4.3 0.7 - - - -
77A LEU* 4.2 2.7 - - + -
80A LEU* 3.7 28.1 - - + +
127A GLY 3.4 0.8 - - - -
128A ASP* 1.3 83.6 + - - +
130A LEU* 1.3 64.0 + - - +
132A ALA* 3.8 1.7 - - - +
133A MET* 3.0 27.4 + - - +
188A LEU* 3.9 14.8 - - + -
197A VAL* 3.6 33.2 - - + -
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Residues in contact with LEU 130 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
126A LYS* 3.6 36.5 + - + +
127A GLY 3.6 1.0 + - - -
128A ASP 3.4 0.2 - - - -
129A ALA* 1.3 77.3 - - - +
131A HIS* 1.3 64.3 + - - +
133A MET* 3.2 1.0 + - - -
134A GLU* 2.9 48.0 + - - +
185A VAL* 3.9 34.1 - - + +
188A LEU* 4.0 21.2 - - + +
189A ARG* 4.0 22.2 - - + +
197A VAL* 5.7 2.2 - - + +
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Residues in contact with HIS 131 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
118A LEU* 6.1 1.4 - - - +
120A ASP 5.6 1.0 + - - -
121A PHE* 3.4 25.6 - - - +
122A ASP 3.8 12.2 + - - -
123A HIS* 3.5 33.1 - + + -
126A LYS* 4.2 14.2 + - + +
127A GLY 3.1 19.2 + - - +
128A ASP 3.8 2.5 - - - +
130A LEU* 1.3 78.4 - - - +
132A ALA* 1.3 56.1 + - - +
134A GLU* 3.3 3.4 + - - +
135A LEU* 2.9 58.8 + - + +
25X LEU* 4.0 18.5 - - + +
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Residues in contact with ALA 132 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
66A MET* 3.1 32.8 - - + +
70A PHE* 3.4 35.2 - - + -
80A LEU* 4.9 0.4 - - + -
84A PHE* 4.1 5.4 - - + -
121A PHE* 4.6 4.9 - - + -
128A ASP 2.9 8.3 + - - +
129A ALA 3.8 2.7 - - - +
131A HIS* 1.3 77.1 - - - +
133A MET* 1.3 58.9 + - - +
135A LEU* 3.3 8.0 + - - +
136A ALA* 2.8 24.9 + - - +
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Residues in contact with MET 133 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
80A LEU* 4.4 14.6 - - + -
83A PHE* 3.7 30.5 - - + -
84A PHE* 4.2 9.2 - - + -
129A ALA 3.0 14.0 + - - +
130A LEU 3.8 3.1 - - - +
132A ALA* 1.3 74.2 - - - +
134A GLU* 1.3 63.0 + - - +
136A ALA* 4.2 1.3 - - - -
137A LEU* 2.9 25.5 + - - +
181A ILE* 3.5 19.1 - - - +
184A TYR* 3.5 39.3 - - + -
185A VAL* 3.8 16.4 - - + -
188A LEU* 3.6 24.5 - - + -
200A PHE* 4.6 1.8 - - + -
204A LEU* 3.9 16.6 - - + -
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Residues in contact with GLU 134 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
126A LYS* 2.8 42.4 + - - +
130A LEU* 2.9 39.2 + - + +
131A HIS* 3.7 3.9 + - - +
133A MET* 1.3 75.0 - - - +
135A LEU* 1.3 58.9 + - - +
137A LEU* 3.4 6.3 + - - +
138A SER* 3.0 31.2 + - - -
185A VAL* 4.0 15.3 - - + -
189A ARG* 2.8 35.5 + - - +
25X LEU* 3.8 15.2 - - + +
28X VAL* 4.4 12.3 - - + +
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Residues in contact with LEU 135 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
66A MET* 4.8 5.6 - - + -
118A LEU* 5.3 5.2 - - + -
121A PHE* 3.7 29.2 - - + -
131A HIS* 2.9 44.6 + - + +
132A ALA* 3.5 8.5 - - - +
134A GLU* 1.3 74.7 - - - +
136A ALA* 1.3 60.5 + - - +
138A SER* 3.2 4.6 + - - -
139A LEU* 2.9 37.6 + - + +
18X PHE* 4.8 13.7 - - + -
21X VAL* 4.4 21.6 - - + +
25X LEU* 3.4 27.6 - - + +
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Residues in contact with ALA 136 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
63A TYR* 3.6 30.0 + - + +
66A MET* 4.6 1.1 - - + +
83A PHE* 5.3 0.2 - - + -
84A PHE* 4.1 13.5 - - + -
132A ALA 2.8 16.9 + - - +
133A MET* 3.3 8.3 + - - +
135A LEU* 1.3 75.4 - - - +
137A LEU* 1.3 62.9 + - - +
139A LEU* 3.2 5.7 + - - +
140A GLU* 2.9 28.2 + - - +
181A ILE* 4.1 16.2 - - + -
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Residues in contact with LEU 137 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
133A MET 2.9 17.8 + - - +
134A GLU* 3.5 6.3 - - - +
135A LEU 3.2 0.2 - - - -
136A ALA* 1.3 76.3 - - - +
138A SER* 1.3 57.8 + - - +
140A GLU* 3.3 3.1 + - - -
141A LYS* 2.9 40.1 + - + +
178A ILE* 3.8 27.6 - - + +
181A ILE* 3.6 12.5 - - + +
182A SER* 3.4 26.7 - - - +
185A VAL* 4.4 13.9 - - + -
28X VAL* 4.5 22.2 - - + -
29X PRO* 5.9 0.2 - - + -
36X LEU* 3.8 26.9 - - + +
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Residues in contact with SER 138 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
134A GLU 3.0 15.3 + - - -
135A LEU* 3.2 7.8 + - - -
137A LEU* 1.3 76.1 - - - +
139A LEU* 1.3 57.1 + - - +
141A LYS* 3.3 3.4 + - - -
142A LEU* 2.9 33.3 + - - +
21X VAL* 3.4 23.1 - - - -
24X GLU* 3.5 18.0 - - - +
25X LEU* 3.2 27.4 + - - +
28X VAL* 3.7 9.2 - - - +
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Residues in contact with LEU 139 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
59A VAL* 4.8 18.0 - - + +
62A VAL* 3.6 32.8 - - + -
63A TYR* 4.3 20.4 - - + +
66A MET* 4.8 3.6 - - - -
135A LEU* 2.9 24.4 + - + +
136A ALA* 3.5 7.4 - - - +
138A SER* 1.3 77.6 - - - +
140A GLU* 1.3 56.5 + - - +
142A LEU* 3.3 9.8 + - + +
143A THR* 2.9 31.7 + - - -
15X PHE* 6.0 1.1 - - + -
17X PRO* 4.2 27.4 - - + +
18X PHE* 5.4 4.9 - - + -
21X VAL* 4.1 17.7 - - + -
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Residues in contact with GLU 140 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
59A VAL* 4.3 3.0 - - - +
63A TYR* 2.5 34.5 + - - +
91A GLU* 3.7 15.0 - - - +
136A ALA 2.9 20.7 + - - +
137A LEU* 3.8 5.4 - - - +
139A LEU* 1.3 74.1 - - - +
141A LYS* 1.3 61.3 + - - +
143A THR* 3.3 6.7 + - - +
144A ASN* 2.9 18.2 + - - +
174A GLN* 2.7 52.3 + - - +
177A ALA* 4.2 13.4 - - + +
178A ILE* 3.9 15.4 - - + +
181A ILE* 3.5 19.9 - - + +
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Residues in contact with LYS 141 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
137A LEU* 2.9 34.4 + - + +
138A SER* 3.7 5.4 - - - +
140A GLU* 1.3 73.9 - - - +
142A LEU* 1.3 64.3 + - - +
144A ASN* 3.3 1.0 + - - +
145A GLU* 3.0 12.5 + - - +
178A ILE* 4.2 9.2 - - + -
24X GLU* 3.7 23.1 - - + +
27X LEU 6.3 0.4 - - - -
28X VAL* 6.0 4.0 - - + +
29X PRO* 5.0 9.5 - - - +
35X SER 5.5 0.2 + - - -
36X LEU 2.7 30.0 + - - -
37X ALA* 3.6 15.5 - - - +
38X ARG 3.3 20.0 + - - -
39X GLN* 2.9 46.0 + - + +
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Residues in contact with LEU 142 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
55A VAL* 5.8 0.2 - - - -
138A SER 2.9 17.4 + - - +
139A LEU* 3.5 10.8 - - + +
141A LYS* 1.3 73.3 - - - +
143A THR* 1.3 66.3 + - - +
145A GLU* 3.2 16.2 + - - +
146A LYS* 3.0 30.7 + - + +
15X PHE* 5.4 11.2 - - + -
17X PRO* 4.0 6.7 - - + +
20X GLU* 3.7 24.7 - - + +
21X VAL* 3.3 47.1 - - + +
24X GLU* 3.4 26.0 - - + +
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Residues in contact with THR 143 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
52A GLN* 4.0 6.1 - - - +
55A VAL* 4.3 7.2 - - + +
56A GLU* 3.6 27.1 - - - +
59A VAL* 3.5 23.6 - - + +
91A GLU* 5.3 0.2 + - - -
139A LEU 2.9 18.0 + - - -
140A GLU* 3.6 8.3 + - - -
142A LEU* 1.3 77.3 - - - +
144A ASN* 1.3 56.3 + - - +
146A LYS* 3.2 8.6 + - - +
147A LEU* 2.8 29.9 + - + +
174A GLN* 3.9 20.6 - - - +
214A CA 4.1 8.3 - - - -
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Residues in contact with ASN 144 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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140A GLU 2.9 14.0 + - - +
141A LYS 3.5 2.9 - - - +
143A THR* 1.3 74.6 - - - +
145A GLU* 1.3 59.3 + - - +
147A LEU* 3.2 2.9 + - - +
148A LEU* 2.9 52.8 + - - +
171A LEU* 4.2 13.3 - - - +
174A GLN* 3.4 28.9 - - + +
175A VAL* 5.2 9.2 - - - +
178A ILE* 3.9 7.5 - - + +
39X GLN* 2.9 38.3 + - - +
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Residues in contact with GLU 145 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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141A LYS 3.0 10.9 + - - +
142A LEU* 3.2 18.2 + - + +
144A ASN* 1.3 75.5 - - - +
146A LYS* 1.3 59.0 + - + +
148A LEU* 3.4 2.9 + - - +
149A ASN* 2.9 46.9 + - - +
24X GLU* 4.1 15.2 - - - +
39X GLN* 4.2 11.2 + - - +
40X LYS* 4.1 30.2 + - - +
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Residues in contact with LYS 146 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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51A GLU* 4.4 12.9 + - + +
52A GLN* 3.4 23.3 - - - +
55A VAL* 4.1 20.0 - - + -
142A LEU* 3.0 22.9 + - - +
143A THR 3.2 7.6 + - - +
145A GLU* 1.3 75.5 - - + +
147A LEU* 1.3 60.1 + - - +
149A ASN* 3.2 17.1 + - + +
150A LEU* 2.9 25.5 + - - +
14X ILE 5.9 0.4 + - - -
15X PHE* 3.6 20.2 - - + -
20X GLU* 3.4 37.0 + - - -
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Residues in contact with LEU 147 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
52A GLN* 3.4 31.0 - - + +
56A GLU* 4.0 5.6 - - - +
98A LEU* 5.4 0.4 - - + -
143A THR* 2.8 28.1 + - + +
144A ASN* 3.2 3.8 + - - +
146A LYS* 1.3 73.3 - - - +
148A LEU* 1.3 59.8 + - - +
150A LEU* 3.2 9.0 + - + +
151A HIS* 2.9 26.5 + - - +
166A VAL* 3.8 11.9 - - + +
170A TYR* 3.8 41.1 - - + +
171A LEU* 3.8 14.4 - - + -
174A GLN* 3.8 35.4 - - + +
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Residues in contact with LEU 148 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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144A ASN* 2.9 39.2 + - - +
145A GLU* 3.8 4.3 - - - +
147A LEU* 1.3 75.7 - - - +
149A ASN* 1.3 59.6 + - - +
151A HIS* 3.3 6.2 + - + +
152A SER* 2.9 26.5 + - - -
171A LEU* 3.8 29.8 - - + -
40X LYS* 3.6 35.9 - - + -
160X VAL* 4.1 23.3 - - + +
161X GLN* 5.1 5.2 - - + +
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Residues in contact with ASN 149 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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145A GLU* 2.9 34.3 + - - +
146A LYS* 3.4 21.4 - - + +
147A LEU 3.2 0.2 - - - -
148A LEU* 1.3 75.5 - - - +
150A LEU* 1.3 64.2 + - - +
152A SER* 2.6 25.4 + - - +
153A VAL* 3.0 15.5 + - + +
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Residues in contact with LEU 150 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
48A ALA* 3.5 39.3 - - + +
49A VAL* 3.9 13.7 - - + +
52A GLN* 4.0 29.4 - - + +
98A LEU* 4.5 13.2 - - + -
146A LYS 2.9 13.7 + - - +
147A LEU* 3.4 13.0 - - + +
149A ASN* 1.3 75.6 - - - +
151A HIS* 1.3 64.6 + - - +
153A VAL* 3.2 7.6 + - + +
154A ALA* 3.1 19.4 + - - +
162A LEU* 4.6 8.5 - - + -
166A VAL* 3.6 29.2 - - + -
170A TYR* 6.5 0.2 - - + -
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Residues in contact with HIS 151 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
147A LEU 2.9 13.6 + - - +
148A LEU* 3.4 13.0 - - + +
150A LEU* 1.3 77.2 - - - +
152A SER* 1.3 58.8 + - - +
154A ALA* 3.1 7.7 + - - +
155A THR* 3.0 49.3 + - + +
163A ALA* 3.5 28.9 + - + +
166A VAL* 4.3 12.1 - - + +
167A GLU* 3.0 22.1 + - + -
171A LEU* 4.2 10.3 - - + -
160X VAL* 3.4 38.4 - - + +
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Residues in contact with SER 152 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
148A LEU 2.9 13.1 + - - -
149A ASN* 2.6 26.4 + - - +
151A HIS* 1.3 74.9 + - - +
153A VAL* 1.3 61.6 + - - +
155A THR* 3.4 9.3 + - - -
156A LYS* 2.9 32.2 + - - +
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Residues in contact with VAL 153 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
44A GLU* 3.9 39.3 - - + +
45A SER* 4.2 7.2 - - - -
48A ALA* 4.0 20.0 - - + -
149A ASN* 3.0 20.3 + - + +
150A LEU* 3.2 7.6 + - + +
152A SER* 1.3 78.3 + - - +
154A ALA* 1.3 64.9 + - - +
156A LYS* 3.4 10.1 + - - +
157A ASN* 3.0 44.1 + - - +
162A LEU* 5.7 0.2 - - + -
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Residues in contact with ALA 154 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
45A SER* 4.7 1.3 - - - -
150A LEU 3.1 9.8 + - - +
151A HIS* 3.1 10.1 + - - +
153A VAL* 1.3 77.7 - - - +
155A THR* 1.3 58.0 + - - +
157A ASN* 3.2 2.3 + - - -
158A GLY 3.0 7.4 + - - -
159A ASP* 2.8 35.5 + - - +
162A LEU* 3.7 36.3 - - + +
163A ALA* 3.7 20.6 - - - +
166A VAL* 5.9 0.2 - - + -
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Residues in contact with THR 155 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
151A HIS* 3.0 45.0 + - + +
152A SER* 3.4 13.3 + - - -
154A ALA* 1.3 72.0 - - - +
156A LYS* 1.3 68.7 + - - +
158A GLY* 3.0 14.0 + - - +
159A ASP 4.9 0.9 - - - +
163A ALA* 4.1 12.1 - - + -
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Residues in contact with LYS 156 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
44A GLU* 2.8 41.2 + - - -
152A SER 2.9 17.0 + - - +
153A VAL* 3.7 13.5 - - - +
155A THR* 1.3 78.0 + - - +
157A ASN* 1.3 64.9 + - - +
158A GLY 3.5 0.3 + - - -
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Residues in contact with ASN 157 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
42A VAL* 3.7 28.6 - - + +
44A GLU* 3.0 29.4 + - - +
45A SER* 3.4 20.6 + - - +
153A VAL* 3.0 26.1 + - - +
154A ALA 3.2 2.9 + - - +
156A LYS* 1.3 85.6 + - - +
158A GLY* 1.3 62.7 + - - +
159A ASP* 3.4 4.2 + - + +
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A short description of the
analytical approach
The contact analysis used in this page
is based upon the approach
developed in:
Sobolev V., Wade R.C., Vriend G.
and Edelman M. PROTEINS (1996)
25, 120-129.
Contact legitimacy depends on the hydrophobic-hydrophilic
properties of the contacting atoms. In order to
define it, for each inter-atomic contact,
eight atom classes have been introduced:
I Hydrophilic - N and O that can donate and accept hydrogen bonds
(e.g., oxygen of hydroxyl group of Ser. or Thr)
II Acceptor - N or O that can only accept a hydrogen bond
III Donor - N that can only donate a hydrogen bond
IV Hydrophobic - Cl, Br, I and all C atoms that are not in
aromatic rings and do not have a covalent bond to
a N or O atom
V Aromatic - C in aromatic rings irrespective of any other
bonds formed by the atom
VI Neutral - C atoms that have a covalent bond to at least one
atom of class I or two or more atoms from class II
or III; atoms; S, F, P, and metal atoms in all cases
VII Neutral-donor - C atoms that have a covalent bond with only one
atom of class III
VIII Neutral-acceptor - C atoms that have a covalent bond with only
one atom of class II
For each pair of contacts the state of legitimacy
is shown below:
Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
Atomic class I II III IV V VI VII VIII
------------------------------------------------------------
I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically
assigned based on the atomic coordinates. However, in
three cases (see below) the automatic assignment
is currently ambiguous. In these
cases, the user is advised to manually analyse
the full list of contacts using
LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are
considered "aromatic" (Class V) if the ring is approximately
planar, and "hydrophobic" (Class IV) or "neutral" (Classes
VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
"hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
"carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).
Please E-mail any
questions and/or suggestions concerning this page to
Vladimir.Sobolev@weizmann.ac.il