Contacts of the helix formed by residues 136 - 166 (chain A) in PDB entry 3PLA
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 ARG 136 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
134A GLN 3.5 7.7 + - - +
135A LYS* 1.3 106.3 - - - +
137A ASP* 1.3 65.3 + - - +
138A LEU 3.4 0.7 + - - -
139A LEU* 3.5 23.3 + - + +
140A ALA 3.8 5.4 + - - -
257A VAL* 3.9 13.1 - - + +
260A GLU* 4.2 25.5 + - - +
261A VAL* 3.6 28.3 - - + +
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Residues in contact with ASP 137 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
135A LYS* 3.6 21.2 - - - +
136A ARG* 1.3 79.4 - - - +
138A LEU* 1.3 82.9 + - - +
139A LEU 3.2 0.2 - - - -
140A ALA* 3.2 8.4 + - - +
141A ILE* 3.1 27.7 + - + +
261A VAL* 3.8 23.1 - - + +
278A LEU* 4.9 7.6 - - + +
283A SER* 3.7 13.6 - - - -
284A LEU* 3.1 36.8 + - + +
285A ASP* 4.5 5.0 - - - +
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Residues in contact with LEU 138 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
132A ALA 3.3 26.9 - - - +
133A ALA* 4.0 17.7 - - - +
135A LYS* 3.8 9.9 - - + +
136A ARG 3.2 1.2 - - - -
137A ASP* 1.3 93.3 + - - +
139A LEU* 1.3 58.0 + - + +
141A ILE* 3.5 17.3 + - + +
142A GLN* 3.1 32.1 + - - +
282A GLY 4.7 7.9 - - - +
283A SER* 6.0 1.8 - - - -
167B ILE* 4.1 19.1 - - + -
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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
----------------------------------------------------------
135A LYS 5.1 3.8 - - - +
136A ARG* 3.5 19.7 + - + +
137A ASP 3.2 0.4 - - - -
138A LEU* 1.3 74.9 - - - +
140A ALA* 1.3 66.2 + - - +
142A GLN* 4.0 2.5 - - - +
143A ALA* 3.1 26.0 + - - +
253A TYR* 3.7 19.0 - - - +
257A VAL* 5.0 5.4 - - + -
164B TRP* 3.9 7.8 + - - +
167B ILE* 3.8 21.3 - - + -
225B ILE* 3.9 19.5 - - + -
229B ASP* 3.6 27.8 - - + +
233B MET* 3.8 28.9 - - + -
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Residues in contact with ALA 140 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
136A ARG 3.8 1.6 + - - -
137A ASP* 3.2 17.3 + - - +
139A LEU* 1.3 79.0 - - - +
141A ILE* 1.3 61.1 + - - +
144A VAL* 3.2 22.7 + - - +
254A LEU* 3.4 16.8 - - - +
257A VAL* 4.0 18.2 - - + +
258A MET* 3.1 31.9 - - + -
261A VAL* 4.5 2.0 - - + -
275A ALA* 4.0 1.3 - - - +
278A LEU* 4.4 6.7 - - + -
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Residues in contact with ILE 141 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
137A ASP* 3.1 19.6 + - - +
138A LEU* 3.6 15.9 - - + +
139A LEU 3.2 0.2 - - - -
140A ALA* 1.3 73.6 - - - +
142A GLN* 1.3 69.5 + - - +
144A VAL* 3.1 11.1 - - - +
145A ARG* 3.0 60.4 + - - +
275A ALA 4.9 0.7 - - - -
278A LEU* 3.8 22.9 - - + +
279A SER* 3.8 19.7 - - - +
282A GLY* 3.4 26.9 - - - +
283A SER* 4.4 4.9 - - - -
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Residues in contact with GLN 142 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
138A LEU 3.1 18.8 + - - +
139A LEU 4.0 1.6 - - - +
140A ALA 3.5 0.2 - - - -
141A ILE* 1.3 77.4 - - - +
143A ALA* 1.3 58.0 + - - +
145A ARG* 3.3 22.6 + - - +
146A ALA* 2.9 29.5 + - - +
160B ARG* 4.1 21.0 + - - +
163B GLU* 3.8 20.5 - - - +
164B TRP* 3.4 52.8 - - + +
167B ILE* 3.7 19.6 - - + +
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Residues in contact with ALA 143 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
139A LEU 3.1 17.3 + - - +
140A ALA 3.9 3.1 - - - +
141A ILE 3.3 0.2 - - - -
142A GLN* 1.3 79.1 - - - +
144A VAL* 1.3 56.3 + - - +
146A ALA* 3.1 5.0 + - - +
147A MET* 2.8 28.8 + - - +
250A LEU* 4.0 10.6 - - + +
253A TYR* 3.9 25.4 - - + -
254A LEU* 4.0 12.6 - - + -
164B TRP* 3.9 19.2 - - + -
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Residues in contact with VAL 144 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
140A ALA 3.2 8.9 + - - +
141A ILE* 3.1 15.7 - - - +
143A ALA* 1.3 74.6 - - - +
145A ARG* 1.3 64.2 + - - +
147A MET* 3.2 9.1 + - + +
148A ASP* 2.9 30.3 + - - +
254A LEU* 4.2 8.4 - - + +
272A ALA* 3.7 28.5 - - + +
275A ALA* 3.6 31.4 - - + +
276A ARG* 4.0 28.7 - - + +
279A SER* 4.2 9.4 - - - -
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Residues in contact with ARG 145 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
141A ILE* 3.0 35.5 + - - +
142A GLN* 3.5 22.4 + - - +
144A VAL* 1.3 78.2 - - + +
146A ALA* 1.3 56.7 + - - +
148A ASP* 3.1 8.5 + - - +
149A ASP* 3.0 33.2 + - - +
279A SER* 2.6 45.3 + - - +
282A GLY* 5.4 4.4 - - - -
160B ARG* 3.5 34.6 + - - +
163B GLU* 5.9 1.2 + - - -
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Residues in contact with ALA 146 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
142A GLN 2.9 13.7 + - - +
143A ALA 3.5 7.2 - - - +
145A ARG* 1.3 75.0 - - - +
147A MET* 1.3 57.7 + - - +
149A ASP* 3.2 13.4 + - - +
150A ILE* 2.9 34.4 + - - +
250A LEU* 4.2 2.9 - - + -
160B ARG* 3.9 13.6 - - + +
164B TRP* 3.7 24.0 - - + -
236B ILE* 4.1 14.6 - - + -
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Residues in contact with MET 147 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
143A ALA 2.8 11.8 + - - +
144A VAL* 3.4 14.6 - - + +
145A ARG 3.2 0.2 - - - -
146A ALA* 1.3 77.8 - - - +
148A ASP* 1.3 58.3 + - - +
150A ILE* 3.3 4.8 + - - +
151A ASP* 2.9 41.0 + - - +
247A ARG* 3.0 43.8 - - + +
250A LEU* 3.8 29.6 - - + +
251A ASN* 3.8 39.5 - - - +
254A LEU* 5.2 9.2 - - - -
272A ALA* 5.1 9.6 - - + -
276A ARG* 4.5 11.7 - - - +
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Residues in contact with ASP 148 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
144A VAL* 2.9 17.8 + - - +
145A ARG* 3.1 9.9 + - - +
147A MET* 1.3 74.8 - - - +
149A ASP* 1.3 65.2 + - - +
151A ASP* 3.8 10.7 - - - +
152A LYS* 3.3 23.6 + - - +
276A ARG* 2.9 50.3 + - - +
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Residues in contact with ASP 149 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
145A ARG 3.0 15.2 + - - +
146A ALA* 3.3 8.4 - - - +
147A MET 3.2 0.2 - - - -
148A ASP* 1.3 77.2 - - - +
150A ILE* 1.3 62.6 + - - +
152A LYS* 3.3 6.6 + - - +
153A THR* 2.7 29.0 + - - -
156B LEU* 3.6 33.5 - - + +
157B PHE* 3.9 12.5 - - + -
160B ARG* 2.6 52.8 + - - +
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Residues in contact with ILE 150 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
146A ALA* 2.9 22.7 + - + +
147A MET* 3.3 5.6 + - - +
149A ASP* 1.3 73.9 - - - +
151A ASP* 1.3 57.2 + - - +
153A THR* 3.0 6.5 + - - -
154A ILE* 2.8 43.3 + - + +
243A LEU* 3.7 37.9 - - + +
246A ILE* 3.7 22.9 - - + -
247A ARG* 4.4 11.7 - - + +
250A LEU* 3.7 24.7 - - + -
157B PHE* 4.3 15.7 - - + -
236B ILE* 4.6 9.4 - - + -
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Residues in contact with ASP 151 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
147A MET* 2.9 24.3 + - - +
148A ASP* 3.8 19.5 - - - +
150A ILE* 1.3 76.6 - - - +
152A LYS* 1.3 62.1 + - - +
154A ILE* 3.4 9.0 + - - +
155A ASN* 3.2 21.8 + - - +
247A ARG* 2.9 41.5 + - - -
276A ARG* 4.5 4.3 + - - -
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Residues in contact with LYS 152 (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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148A ASP 3.3 16.4 + - - +
149A ASP* 3.5 7.2 - - - +
150A ILE 3.2 0.2 - - - -
151A ASP* 1.3 78.3 - - - +
153A THR* 1.3 56.6 + - - +
155A ASN* 3.5 6.7 + - - +
156A LEU* 3.0 28.4 + - + +
152B LYS* 6.2 3.0 - - - +
156B LEU* 5.1 13.4 - - + +
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Residues in contact with THR 153 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
149A ASP 2.7 21.3 + - - -
150A ILE* 3.5 4.3 - - - -
152A LYS* 1.3 73.9 - - - +
154A ILE* 1.3 67.2 + - - +
156A LEU* 3.0 8.2 + - - +
157A PHE* 2.8 52.5 + - + +
243A LEU* 4.0 12.1 - - + -
153B THR* 3.5 28.2 + - + +
156B LEU* 4.4 5.4 - - - +
157B PHE* 3.5 20.0 - - + -
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Residues in contact with ILE 154 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
150A ILE* 2.8 39.1 + - + +
151A ASP* 3.6 6.5 - - - +
153A THR* 1.3 71.9 - - - +
155A ASN* 1.3 58.5 + - - +
157A PHE* 3.4 2.9 + - - +
158A SER* 2.5 41.5 + - - +
179A HIS* 5.3 2.2 - - + -
240A ILE* 4.7 4.5 - - + +
243A LEU* 3.8 36.3 - - + +
244A TYR* 3.3 50.3 - - + +
247A ARG* 4.0 18.6 - - - -
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Residues in contact with ASN 155 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
151A ASP 3.2 10.2 + - - +
152A LYS* 3.8 9.6 - - - +
153A THR 3.1 0.6 - - - -
154A ILE* 1.3 82.8 - - + +
156A LEU* 1.3 62.7 + - - +
158A SER* 4.5 1.8 - - - -
159A GLU* 3.0 53.0 + - - +
179A HIS* 3.7 26.0 + - - -
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Residues in contact with LEU 156 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
152A LYS* 3.0 18.6 + - + +
153A THR* 3.0 5.6 + - - +
155A ASN* 1.3 77.1 - - - +
157A PHE* 1.3 68.6 + - + +
159A GLU* 3.5 10.5 + - + +
160A ARG* 3.0 33.7 + - - +
149B ASP* 3.6 50.5 - - + +
152B LYS* 5.2 12.6 - - + -
153B THR* 4.4 4.7 - - - +
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Residues in contact with PHE 157 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
153A THR* 2.8 37.3 + - + +
154A ILE* 4.0 1.1 - - - +
156A LEU* 1.3 80.3 - - + +
158A SER* 1.3 55.0 + - - +
160A ARG* 3.2 6.1 + - + +
161A LEU* 2.6 36.9 + - - +
236A ILE* 3.9 16.3 - - + +
239A THR* 3.9 33.2 - - + -
240A ILE* 3.6 20.3 - - + +
243A LEU* 4.2 6.3 - - + -
149B ASP* 3.8 22.2 - - + -
150B ILE* 4.2 19.1 - - + -
153B THR* 3.5 31.6 - - + -
243B LEU* 4.1 9.2 - - + -
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Residues in contact with SER 158 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
154A ILE* 2.5 24.7 + - - +
155A ASN 4.0 3.1 - - - -
157A PHE* 1.3 72.7 - - - +
159A GLU* 1.3 65.7 + - - +
161A LEU* 3.9 1.9 - - - +
162A ARG* 3.1 32.5 + - - +
179A HIS* 3.6 41.6 - - - +
182A TYR* 5.5 0.4 - - - -
240A ILE* 3.8 23.8 - - - +
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Residues in contact with GLU 159 (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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155A ASN* 3.0 49.1 + - - +
156A LEU* 3.8 9.0 - - + +
158A SER* 1.3 77.3 - - - +
160A ARG* 1.3 62.8 + - - +
162A ARG* 3.6 7.2 + - - +
163A GLU* 3.3 28.4 + - - +
179A HIS* 5.1 6.7 - - + -
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Residues in contact with ARG 160 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
156A LEU* 3.0 23.0 + - - +
157A PHE* 3.4 11.2 - - + +
159A GLU* 1.3 75.7 - - - +
161A LEU* 1.3 66.3 + - - +
163A GLU* 3.2 12.0 + - - +
164A TRP* 2.9 29.0 + - + +
236A ILE* 5.5 4.3 - - + -
142B GLN* 4.3 14.8 - - - +
145B ARG* 3.7 40.0 + - - +
146B ALA* 3.9 27.4 - - + +
149B ASP* 2.6 38.6 + - - +
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Residues in contact with LEU 161 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
157A PHE 2.6 21.1 + - - +
158A SER* 3.9 4.9 - - - +
159A GLU 3.4 0.2 - - - -
160A ARG* 1.3 72.7 - - - +
162A ARG* 1.3 53.9 + - - +
164A TRP* 2.9 7.5 + - + -
165A TYR* 2.6 47.6 + - + +
182A TYR* 4.1 15.5 - - + -
183A ALA* 4.3 14.1 - - + -
186A VAL* 4.2 11.4 - - + -
233A MET* 3.8 28.3 - - + +
236A ILE* 3.8 10.3 - - + +
237A ALA* 3.7 24.5 - - + +
240A ILE* 3.7 20.9 - - + -
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Residues in contact with ARG 162 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
158A SER* 3.1 21.5 + - - +
159A GLU* 4.0 6.7 - - - +
161A LEU* 1.3 74.6 - - - +
163A GLU* 1.3 59.3 + - + +
166A SER* 2.8 36.8 + - - -
173A ASP* 3.0 49.9 + - - +
176A ILE 2.7 19.6 + - - -
177A GLU* 3.1 18.9 + - - -
178A ASP 3.5 12.5 + - - -
179A HIS* 3.1 33.4 + - - -
182A TYR* 3.6 39.6 + - + +
----------------------------------------------------------
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Residues in contact with GLU 163 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
159A GLU 3.3 12.9 + - - +
160A ARG* 3.2 18.0 + - - +
162A ARG* 1.3 80.3 - - + +
164A TRP* 1.3 61.0 + - - +
166A SER* 3.9 10.0 + - - -
167A ILE* 4.2 6.9 + - - +
142B GLN* 3.7 25.3 + - - +
145B ARG* 5.6 3.5 + - - +
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Residues in contact with TRP 164 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
160A ARG* 2.9 19.7 + - + +
161A LEU* 2.9 8.5 + - + +
163A GLU* 1.3 74.7 - - - +
165A TYR* 1.3 65.4 + - - +
166A SER 3.0 1.8 - - - -
167A ILE* 3.1 25.0 + - + +
229A ASP 4.8 0.7 - - - -
232A ALA* 3.6 35.2 - - + -
233A MET* 3.6 31.4 - - + +
236A ILE* 3.4 35.0 - - + -
139B LEU* 3.9 16.2 + - - +
142B GLN* 3.3 38.4 - - + +
143B ALA* 4.0 18.4 - - + -
146B ALA* 3.8 15.7 - - + -
250B LEU* 3.8 19.1 - - + -
253B TYR* 4.6 4.3 - + - -
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Residues in contact with TYR 165 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
161A LEU* 2.6 30.5 + - + +
164A TRP* 1.3 73.1 - - - +
166A SER* 1.3 55.1 + - - +
167A ILE 3.1 1.1 - - - -
168A HIS* 3.1 40.8 + + + -
169A PHE* 3.1 32.3 + - + -
172A LEU* 3.6 23.5 - - + +
182A TYR* 3.4 21.8 - + - +
185A ILE* 5.3 4.3 - - - +
186A VAL* 3.6 36.8 - - + -
189A PHE* 6.0 0.7 - - - +
190A GLY 2.9 29.0 + - - -
191A ASP 4.4 0.2 + - - -
192A ARG* 4.0 4.5 + - - -
195A LEU* 6.1 0.3 - - - +
230A LEU* 4.2 7.0 - - + -
233A MET* 3.7 20.6 - - - -
----------------------------------------------------------
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Residues in contact with SER 166 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
162A ARG 2.8 24.1 + - - -
163A GLU* 4.1 8.3 - - - -
164A TRP 3.0 0.8 - - - -
165A TYR* 1.3 75.1 - - - +
167A ILE* 1.3 62.6 + - - +
168A HIS 3.2 0.4 - - - -
169A PHE 3.9 2.5 + - - -
170A PRO* 3.2 41.0 + - - +
173A ASP* 3.6 25.3 - - - +
182A TYR* 3.9 3.5 + - - -
133B ALA* 5.8 0.5 - - - +
----------------------------------------------------------
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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