Contacts of the helix formed by residues 131 - 161 (chain A) in PDB entry 4AVM
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 GLN 131 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
127A ILE 3.4 9.3 + - - +
128A TYR* 3.3 15.6 + - + +
129A VAL 3.2 1.4 - - - -
130A ALA* 1.4 75.4 - - - +
132A PHE* 1.3 63.5 + - + +
133A SER 3.3 0.7 + - - -
134A GLU* 4.0 9.6 + - - +
135A ILE* 3.3 22.1 + - + +
198A LEU* 5.5 6.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 132 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
50A PHE* 3.5 25.0 - + + -
53A GLN* 3.5 46.2 - - + -
54A GLN* 3.6 41.3 - - + +
57A GLY* 5.8 0.2 - - - -
128A TYR* 3.3 49.6 - + - -
129A VAL* 3.3 17.8 + - + +
131A GLN* 1.3 75.2 - - + +
133A SER* 1.4 59.3 + - - +
135A ILE* 3.4 6.4 + - - -
136A LYS* 2.9 32.0 + - - +
198A LEU* 3.9 15.5 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 133 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
129A VAL 4.5 1.2 + - - -
130A ALA* 3.4 17.5 + - - -
131A GLN 3.3 1.4 - - - -
132A PHE* 1.4 78.2 - - - +
134A GLU* 1.3 57.4 + - - +
136A LYS* 3.4 5.8 + - - +
137A GLU* 3.1 31.4 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 134 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
130A ALA 4.8 0.4 + - - -
131A GLN 4.0 7.3 + - - +
132A PHE 3.5 0.4 - - - -
133A SER* 1.3 74.1 - - - +
135A ILE* 1.4 66.4 + - + +
137A GLU* 3.4 9.7 + - - +
138A ARG* 3.1 40.1 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 135 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
50A PHE* 3.5 22.7 - - + -
131A GLN* 3.3 26.9 - - + +
132A PHE* 3.4 3.2 + - - +
133A SER 3.4 0.4 - - - -
134A GLU* 1.4 74.6 - - + +
136A LYS* 1.3 60.2 + - - +
138A ARG* 3.0 24.6 + - - +
139A ILE* 2.9 27.7 + - + +
191A LEU* 4.0 12.1 - - + -
194A GLU* 4.9 8.3 - - + +
195A LEU* 3.8 22.0 - - + -
198A LEU* 3.6 30.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 136 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
50A PHE* 3.7 16.0 - - + -
51A TYR* 3.6 33.5 + - + +
132A PHE 2.9 19.0 + - - +
133A SER* 3.7 6.7 - - - +
135A ILE* 1.3 74.4 - - - +
137A GLU* 1.3 58.2 + - + +
139A ILE* 3.2 6.9 + - - +
140A ALA* 2.9 30.3 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 137 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
133A SER 3.1 20.0 + - - +
134A GLU* 3.6 10.8 - - - +
135A ILE 3.3 0.2 - - - -
136A LYS* 1.3 77.0 - - + +
138A ARG* 1.4 57.2 + - + +
140A ALA* 3.5 7.5 + - - +
141A LYS* 2.9 28.1 + - - +
144A ARG* 4.7 3.1 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 138 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
134A GLU* 3.1 24.2 + - - +
135A ILE* 3.0 30.8 + - - +
137A GLU* 1.4 72.4 - - + +
139A ILE* 1.4 61.3 + - - +
141A LYS* 3.3 6.4 + - + -
142A ARG* 2.9 30.0 + - - +
187A LEU* 3.5 13.6 - - + +
190A GLU* 3.2 32.7 + - - -
191A LEU* 3.5 17.9 - - + +
194A GLU* 2.8 34.6 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 139 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
43A PHE* 4.1 22.6 - - + -
47A ALA* 4.6 11.4 - - + -
50A PHE* 3.5 46.0 - - + -
51A TYR* 3.8 17.9 - - + +
135A ILE 2.9 15.5 + - - +
136A LYS 3.2 6.7 + - - +
138A ARG* 1.4 75.6 - - - +
140A ALA* 1.3 57.1 + - - +
142A ARG* 3.3 4.4 + - - +
143A GLY* 3.0 24.8 + - - -
191A LEU* 3.8 22.7 - - + -
195A LEU* 4.1 17.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 140 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
51A TYR* 5.5 0.4 + - - -
136A LYS* 2.9 19.4 + - + +
137A GLU* 3.6 8.7 - - - +
139A ILE* 1.3 76.8 - - - +
141A LYS* 1.3 60.9 + - - +
143A GLY* 3.2 4.0 + - - -
144A ARG* 3.0 41.0 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 141 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
137A GLU 2.9 18.2 + - - +
138A ARG* 3.6 7.2 - - + +
139A ILE 3.3 0.2 - - - -
140A ALA* 1.3 71.5 - - - +
142A ARG* 1.4 65.1 + - - +
144A ARG* 3.0 26.3 + - - +
145A LYS* 2.9 53.5 + - - +
183A VAL* 5.6 0.9 - - - -
187A LEU* 3.9 24.5 - - + -
1249A EPE 3.8 21.8 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 142 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
40A ASP* 2.7 42.8 + - - -
43A PHE* 3.4 47.8 - - - +
138A ARG 2.9 20.7 + - - +
139A ILE 3.5 4.7 + - - +
141A LYS* 1.4 71.5 - - - +
143A GLY* 1.3 60.5 + - - +
145A LYS* 3.2 6.1 + - - +
146A LEU* 2.9 30.7 + - - +
184A PHE* 3.6 29.0 - - + -
187A LEU* 3.9 14.0 - - + +
188A ASN* 2.8 42.8 + - - +
191A LEU* 3.8 13.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 143 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
139A ILE 3.0 13.7 + - - -
140A ALA* 3.5 5.2 - - - -
141A LYS 3.2 0.4 - - - -
142A ARG* 1.3 82.3 - - - +
144A ARG* 1.3 59.4 + - - +
146A LEU* 3.3 8.3 + - - +
147A VAL* 3.1 28.4 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 144 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
23A ARG* 3.1 46.1 - - - +
137A GLU 4.7 2.4 + - - -
140A ALA* 3.0 32.3 + - - +
141A LYS* 3.0 29.7 + - - +
143A GLY* 1.3 75.4 - - - +
145A LYS* 1.4 58.5 + - - +
147A VAL* 3.3 3.1 + - - +
148A ASP* 2.9 26.0 + - - -
1249A EPE 3.0 44.3 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 145 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
19A LYS* 6.0 2.6 - - - +
141A LYS* 2.9 35.8 + - - +
142A ARG* 3.2 6.7 + - - +
144A ARG* 1.4 72.1 - - - +
146A LEU* 1.3 61.2 + - - +
148A ASP* 3.4 20.9 + - + +
149A TYR* 3.0 26.2 + - - +
180A ALA 4.3 2.6 - - - +
183A VAL* 3.6 26.7 - - + +
184A PHE* 3.8 25.9 - - - +
187A LEU* 3.9 17.9 - - + -
1249A EPE 3.1 48.3 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 146 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
37A GLU* 6.0 0.2 - - - +
38A THR* 3.8 40.8 - - + +
40A ASP* 3.8 38.1 - - + +
142A ARG* 2.9 10.4 + - - +
143A GLY* 3.3 10.9 + - - +
145A LYS* 1.3 75.9 - - - +
147A VAL* 1.3 63.0 + - + +
149A TYR* 3.2 8.6 + - + +
150A ASP* 3.1 22.5 + - - +
184A PHE* 3.7 27.3 - - + -
1247A EDO 4.0 19.1 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 147 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
23A ARG* 3.3 40.4 - - + +
26A GLU* 4.0 13.2 - - + -
27A LYS* 4.3 13.7 - - + +
30A GLN* 5.1 6.7 - - - +
143A GLY 3.1 17.2 + - - +
144A ARG* 3.3 6.3 + - - +
146A LEU* 1.3 77.8 - - + +
148A ASP* 1.4 50.5 + - - +
150A ASP* 3.2 7.7 + - - +
151A SER* 2.8 32.7 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 148 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
19A LYS* 4.3 25.0 - - - +
23A ARG* 2.9 40.2 + - - +
144A ARG 2.9 15.7 + - - +
145A LYS* 3.4 31.4 + - + +
147A VAL* 1.4 73.9 - - - +
149A TYR* 1.4 58.1 + - - +
151A SER* 3.6 6.9 - - - -
152A ALA* 2.9 29.6 + - - +
180A ALA* 4.0 11.2 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 149 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
38A THR* 3.9 3.8 - - - -
145A LYS 3.0 13.5 + - - +
146A LEU* 3.2 14.1 + - + +
148A ASP* 1.4 75.1 - - - +
150A ASP* 1.3 66.8 + - - +
152A ALA* 3.1 5.0 + - - +
153A ARG* 2.9 52.4 + - + +
177A PHE* 3.4 38.9 - + - -
180A ALA* 3.6 14.1 - - + +
181A GLN* 3.3 46.8 + - + -
184A PHE* 5.0 1.6 - - + -
1247A EDO 3.5 32.4 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 150 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
26A GLU* 3.4 18.8 - - - +
30A GLN* 3.6 10.8 + - - +
36A VAL 4.4 0.2 - - - -
37A GLU* 3.6 7.5 - - - +
38A THR* 2.6 49.5 + - - +
146A LEU* 3.1 19.1 + - - +
147A VAL* 3.2 7.8 + - - +
149A TYR* 1.3 72.0 - - - +
151A SER* 1.3 60.4 + - - +
153A ARG* 3.0 20.8 + - - +
154A HIS* 2.9 24.6 + - - +
1245A EDO 3.4 11.7 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 151 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
22A SER* 3.5 33.2 + - - -
23A ARG 4.7 0.7 - - - -
26A GLU* 3.6 24.9 - - - +
147A VAL 2.8 21.1 + - - -
148A ASP* 3.6 9.4 - - - -
150A ASP* 1.3 72.4 - - - +
152A ALA* 1.4 57.4 + - - +
154A HIS* 3.3 3.2 + - - +
155A HIS* 3.0 30.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 152 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
148A ASP 2.9 17.8 + - - +
149A TYR 3.1 6.0 + - - +
151A SER* 1.4 73.9 - - - +
153A ARG* 1.4 57.8 + - - +
155A HIS* 3.9 7.6 - - - +
156A LEU* 3.0 29.8 + - - +
173A ALA 4.7 3.5 - - - +
176A GLU* 4.0 15.7 - - + +
177A PHE* 3.8 32.5 - - - +
180A ALA* 4.4 3.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 153 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
36A VAL* 4.1 8.1 + - - +
37A GLU 4.1 2.8 + - - -
38A THR* 3.4 20.7 + - - +
149A TYR* 2.9 41.6 + - + +
150A ASP* 3.0 32.4 + - - +
152A ALA* 1.4 75.6 - - - +
154A HIS* 1.3 56.4 + - - +
156A LEU* 3.3 3.9 + - - +
157A GLU* 2.9 54.8 + - - +
177A PHE* 3.6 28.3 - - + -
1245A EDO 3.8 20.7 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 154 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
26A GLU* 3.3 22.3 + - - +
29A LEU* 4.1 21.5 - - + +
34A LYS 4.1 9.1 + - - -
35A ALA* 3.7 20.7 - - + +
150A ASP 2.9 9.2 + - - +
151A SER 3.3 3.8 + - - +
153A ARG* 1.3 76.2 - - - +
155A HIS* 1.3 57.2 + - - +
157A GLU* 3.5 6.7 + - + +
158A ALA* 3.1 32.5 + - + +
1245A EDO 3.6 26.4 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 155 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
151A SER* 3.0 17.9 + - - +
152A ALA* 3.9 6.1 - - - +
154A HIS* 1.3 74.8 + - - +
156A LEU* 1.3 58.6 + - - +
158A ALA* 3.2 7.5 + - - +
159A VAL* 2.9 56.7 + - + +
169A LYS* 4.9 11.7 + - + +
172A LYS* 6.2 1.2 - - - +
173A ALA* 3.6 22.9 + - + +
176A GLU* 3.9 18.6 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 156 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
152A ALA 3.0 20.0 + - - +
153A ARG* 3.6 4.9 - - - +
155A HIS* 1.3 75.5 - - - +
157A GLU* 1.3 61.5 + - + +
159A VAL* 3.4 1.3 + - - +
160A GLN* 2.9 53.5 + - + +
170A THR* 4.3 3.6 - - + +
173A ALA* 3.9 24.7 - - + +
174A GLU* 3.6 33.9 - - + +
177A PHE* 3.9 30.3 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 157 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
153A ARG* 2.9 35.0 + - - +
154A HIS* 3.9 7.7 - - + +
156A LEU* 1.3 76.4 - - + +
158A ALA* 1.3 60.6 + - - +
160A GLN* 3.5 5.1 + - - +
161A ASN* 2.9 32.4 + - - +
1245A EDO 3.0 34.7 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 158 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
154A HIS* 3.1 23.9 + - + +
155A HIS* 3.6 8.5 - - - +
157A GLU* 1.3 76.2 - - - +
159A VAL* 1.4 62.2 + - + +
161A ASN* 3.4 5.3 + - - +
162A ALA* 3.2 21.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 159 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
155A HIS* 2.9 49.5 + - + +
156A LEU* 3.8 5.8 - - - +
158A ALA* 1.4 74.0 - - + +
160A GLN* 1.3 62.9 + - + +
162A ALA* 3.3 20.9 - - + +
164A LYS 5.2 1.0 - - - +
165A LYS* 5.8 1.7 - - - -
166A ASP* 4.5 6.1 + - + +
169A LYS* 3.9 26.7 - - + -
170A THR* 3.4 41.6 + - - +
173A ALA* 4.6 2.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLN 160 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
156A LEU* 2.9 37.0 + - + +
157A GLU* 4.0 5.4 - - - +
159A VAL* 1.3 75.4 - - - +
161A ASN* 1.3 58.5 + - - +
162A ALA 3.6 4.5 + - - +
170A THR* 3.4 27.9 + - + +
174A GLU* 4.1 13.9 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 161 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
157A GLU 2.9 19.3 + - - +
158A ALA* 3.7 6.5 - - - +
159A VAL 3.3 0.2 - - - -
160A GLN* 1.3 73.6 - - - +
162A ALA* 1.3 64.7 + - - +
163A LYS 3.8 0.7 + - - -
----------------------------------------------------------
Back to top of page
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