Contacts of the helix formed by residues 127 - 154 (chain C) in PDB entry 2ONK
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 ALA 127 (chain C).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
123C LYS* 3.2 24.7 - - + +
124C PHE 3.1 13.6 - - - +
125C VAL 3.0 3.1 - - - +
126C ASP* 1.3 80.3 - - - +
128C LEU* 1.3 68.6 + - - +
129C PRO* 3.6 5.6 - - + -
130C GLY* 2.7 13.7 + - - -
131C ILE* 3.0 9.6 + - - +
207C ALA* 3.4 1.6 - - - +
210C PRO* 3.8 8.3 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 128 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
53C THR* 4.2 20.9 - - + +
56C TYR* 3.4 32.3 - - + +
57C ALA* 3.6 31.2 - - + -
60C ILE* 4.5 9.9 - - + -
127C ALA* 1.3 69.0 - - - +
129C PRO* 1.3 63.9 - - + +
131C ILE* 2.6 12.3 + - + +
132C VAL* 2.5 40.3 + - + +
210C PRO* 4.5 5.1 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with PRO 129 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
122C LEU* 3.8 27.4 - - + -
123C LYS 3.5 16.4 - - - +
124C PHE* 3.0 31.2 - - + -
127C ALA* 3.2 9.6 - - + -
128C LEU* 1.3 95.9 - - + +
130C GLY* 1.3 53.1 + - - +
132C VAL* 3.3 8.8 - - + +
133C VAL* 2.6 38.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 130 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
124C PHE* 3.0 30.7 + - - -
127C ALA 2.7 11.6 + - - -
129C PRO* 1.3 71.1 - - - +
131C ILE* 1.3 55.4 + - - -
133C VAL* 3.3 3.1 + - - +
134C ALA* 2.7 30.5 + - - +
206C ILE* 3.5 25.4 - - - +
207C ALA* 4.7 1.1 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 131 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
53C THR* 4.5 5.6 - - + -
57C ALA* 3.7 20.6 - - + -
127C ALA 3.0 9.7 + - - +
128C LEU* 2.6 25.1 + - + +
130C GLY* 1.3 71.3 - - - +
132C VAL* 1.3 58.8 + - - +
134C ALA* 3.0 8.6 + - - +
135C MET* 2.8 41.8 + - + +
203C VAL* 4.2 6.1 - - + -
207C ALA* 4.0 14.3 - - + +
210C PRO* 3.2 39.5 - - + +
212C ILE* 3.3 34.3 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 132 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
57C ALA* 3.8 28.0 - - + +
60C ILE* 4.0 23.6 - - + -
61C SER* 4.4 8.5 - - - -
64C ILE* 3.8 29.4 - - + -
128C LEU* 2.5 25.5 + - + +
129C PRO* 3.3 11.7 - - + +
131C ILE* 1.3 71.7 - - - +
133C VAL* 1.3 63.1 + - + +
134C ALA 2.8 1.2 + - - -
135C MET* 2.8 5.6 + - - -
136C LEU* 2.6 36.8 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 133 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
106C LEU* 3.3 36.9 - - + +
110C PHE* 3.6 30.7 - - + -
124C PHE* 3.6 24.5 - - + -
129C PRO 2.6 20.6 + - - +
130C GLY* 3.6 6.5 - - - +
132C VAL* 1.3 77.9 - - + +
134C ALA* 1.3 64.9 + - - +
136C LEU* 4.2 6.7 - - + -
137C PHE* 3.2 15.9 + - - +
206C ILE* 4.9 2.7 - - + -
19D PHE* 3.6 10.3 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 134 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
106C LEU* 3.5 11.8 - - - +
130C GLY 2.7 11.5 + - - +
131C ILE* 3.1 10.3 - - - +
132C VAL 2.8 3.0 + - - -
133C VAL* 1.3 74.7 - - - +
135C MET* 1.3 61.6 - - - +
137C PHE* 3.5 2.3 + - - +
138C VAL* 2.8 28.7 + - - +
202C ALA* 4.0 1.8 - - - +
203C VAL* 3.5 30.3 - - + +
206C ILE* 3.2 24.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with MET 135 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
54C THR* 4.2 14.1 - - + +
57C ALA* 3.8 2.7 - - + +
58C ALA* 3.4 35.4 - - + -
61C SER* 4.1 9.4 - - - -
131C ILE* 2.8 42.4 + - + +
132C VAL 2.8 2.8 + - - +
134C ALA* 1.3 70.4 - - - +
136C LEU* 1.3 68.9 + - - +
138C VAL* 3.1 8.2 + - - +
139C SER* 2.8 22.8 + - - -
196C GLY* 2.8 43.1 - - - +
197C ILE* 4.0 4.9 - - - +
199C GLU* 4.8 3.1 - - + +
203C VAL* 4.2 11.0 - - + -
212C ILE* 4.3 14.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 136 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
61C SER* 3.1 38.2 - - - +
64C ILE* 3.9 31.2 - - + -
65C ALA* 4.1 7.0 - - + +
132C VAL* 2.6 23.2 + - + +
133C VAL* 3.8 6.7 - - + +
135C MET* 1.3 69.8 - - - +
137C PHE* 1.3 56.4 + - - +
139C SER* 2.7 28.9 + - - +
140C VAL* 2.8 36.5 + - + +
16D ILE* 5.3 3.4 - - + -
19D PHE* 3.4 30.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 137 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
94C PRO* 3.1 47.8 - - + +
97C ILE* 4.0 11.7 - - + -
102C ALA* 3.7 34.3 - - + -
105C ALA* 6.1 0.9 - - + -
106C LEU* 3.9 21.5 - - + -
133C VAL 3.2 15.3 + - - +
134C ALA 3.7 3.4 - - - +
136C LEU* 1.3 78.7 - - - +
138C VAL* 1.3 64.7 + - + +
140C VAL* 4.4 2.8 - - - +
141C PRO* 3.8 3.6 - - - +
19D PHE* 3.4 16.2 - + + -
20D VAL* 3.7 40.0 - - + +
23D PRO* 4.0 8.5 - - + -
24D VAL* 3.9 21.3 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 138 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
94C PRO* 4.6 12.3 - - - +
99C HIS* 4.7 5.6 - - - +
102C ALA* 5.3 0.7 - - + -
134C ALA 2.8 23.8 - - - +
135C MET* 3.7 6.1 - - - +
136C LEU 2.7 4.8 + - - -
137C PHE* 1.3 83.5 - - + +
139C SER* 1.3 57.2 + - - +
141C PRO* 3.9 11.1 - - - +
142C ILE* 4.7 3.6 - - - +
195C ARG* 2.7 54.0 + - + +
199C GLU* 4.0 8.3 - - + +
202C ALA* 3.9 21.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 139 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
61C SER* 3.8 10.0 + - - -
65C ALA* 5.9 0.2 - - - -
135C MET 2.8 18.8 + - - -
136C LEU* 2.7 13.8 + - - +
138C VAL* 1.3 72.1 - - - +
140C VAL* 1.3 65.2 + - - +
141C PRO* 3.3 3.8 - - - -
142C ILE* 2.9 17.5 + - - +
143C TYR 3.1 8.5 + - - -
192C SER* 3.4 36.0 + - - -
195C ARG* 3.6 18.6 - - - -
196C GLY 4.4 2.0 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 140 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
65C ALA* 4.9 12.1 - - + +
69C GLY* 5.9 0.4 - - - -
91C VAL* 5.6 2.0 - - - +
136C LEU* 2.8 55.3 + - + +
137C PHE 4.2 1.6 - - - +
139C SER* 1.3 70.7 + - - +
141C PRO* 1.3 72.6 - - + +
143C TYR* 3.1 4.7 + - - +
144C ILE* 3.0 39.5 + - + +
16D ILE* 3.8 30.7 - - + -
19D PHE* 4.5 3.8 - - + -
20D VAL* 4.2 15.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with PRO 141 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
91C VAL* 3.1 36.3 - - + +
92C ASP* 4.6 4.3 - - - +
94C PRO* 3.6 28.0 - - + -
95C VAL* 4.3 19.3 - - + -
137C PHE 3.8 4.9 - - - +
138C VAL 3.9 11.0 - - - +
139C SER 3.3 1.1 - - - -
140C VAL* 1.3 96.9 - - + +
142C ILE* 1.3 72.1 + - + +
143C TYR 3.0 0.3 + - - -
144C ILE* 4.4 0.2 - - + -
145C ASN* 3.0 30.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 142 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
95C VAL* 6.3 1.3 - - + -
138C VAL 4.7 3.4 - - - +
139C SER* 2.9 15.7 + - - +
141C PRO* 1.3 83.5 - - + +
143C TYR* 1.3 60.7 + - - +
145C ASN* 4.3 4.3 - - - +
146C GLN* 3.6 18.7 + - - +
188C GLY 4.8 0.2 - - - +
191C MET* 3.9 19.5 - - + +
192C SER* 3.8 24.7 - - - +
195C ARG* 4.0 33.4 - - + +
95D VAL* 6.1 5.8 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 143 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
65C ALA* 3.9 24.2 - - + -
66C VAL* 3.3 34.9 - - + +
69C GLY* 4.4 4.0 - - - -
70C THR* 2.5 35.2 + - - -
139C SER 3.1 4.2 + - - +
140C VAL 3.1 7.8 + - - +
142C ILE* 1.3 75.0 - - - +
144C ILE* 1.3 81.1 + - + +
146C GLN* 2.8 15.9 + - - +
147C ALA* 2.8 24.5 + - + +
185C ILE* 3.1 46.5 - - + +
188C GLY* 3.4 25.6 - - - -
189C ALA* 3.4 5.4 - - - -
192C SER* 4.0 15.0 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 144 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
65C ALA* 6.4 0.2 - - + -
69C GLY* 3.9 25.4 - - - +
72C LEU* 3.6 25.8 - - + -
73C ALA* 3.5 18.5 - - + +
76C LEU* 4.4 13.7 - - + -
91C VAL* 4.0 24.7 - - + -
140C VAL* 3.0 35.1 + - + +
141C PRO 3.7 3.4 - - - +
143C TYR* 1.3 83.4 - - + +
145C ASN* 1.3 55.6 + - - +
147C ALA* 3.0 6.8 + - - +
148C LYS* 2.7 35.4 + - + +
16D ILE* 5.2 4.3 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 145 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
91C VAL* 4.0 18.4 - - - +
92C ASP* 4.1 17.4 + - - +
141C PRO* 3.0 18.8 + - - +
142C ILE* 4.3 4.7 - - - +
144C ILE* 1.3 78.8 - - - +
146C GLN* 1.3 62.7 + - - +
148C LYS* 3.2 25.1 + - - +
149C GLU* 3.1 28.9 + - - +
191D MET* 5.6 7.7 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLN 146 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
142C ILE 3.6 8.3 + - - +
143C TYR 2.8 14.1 + - - +
145C ASN* 1.3 72.1 - - - +
147C ALA* 1.3 63.6 + - - +
149C GLU* 3.3 23.6 + - - +
150C GLY 3.1 16.1 + - - -
184C HIS* 3.7 34.4 + - - +
187C ALA* 4.1 8.8 - - - +
188C GLY* 3.5 15.9 - - - -
191C MET* 3.3 34.8 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 147 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
70C THR* 4.7 1.3 - - - -
73C ALA* 3.5 15.9 - - + -
143C TYR* 2.8 41.0 + - + +
144C ILE 3.4 7.6 - - - +
146C GLN* 1.3 76.8 - - - +
148C LYS* 1.3 63.3 + - - +
150C GLY* 3.1 9.6 + - - +
151C PHE* 3.0 28.0 + - + -
181C SER* 5.2 0.3 - - - -
184C HIS* 4.6 8.2 + - - -
185C ILE* 5.0 6.7 - - + +
188C GLY* 5.1 0.4 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 148 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
73C ALA* 3.5 27.3 - - + +
76C LEU* 4.1 29.1 - - + +
77C ALA* 3.9 15.7 - - + +
88C GLU* 4.0 17.6 + - - +
144C ILE* 2.7 15.9 + - - +
145C ASN* 3.3 29.3 + - - +
146C GLN 3.1 0.2 - - - -
147C ALA* 1.3 72.6 - - - +
149C GLU* 1.3 66.6 + - + +
150C GLY 2.8 1.0 + - - -
151C PHE* 3.0 4.5 + - - +
152C ALA* 2.8 25.7 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 149 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
145C ASN* 3.1 13.9 + - - +
146C GLN* 3.7 25.8 + - - +
148C LYS* 1.3 80.5 - - + +
150C GLY* 1.3 64.0 + - - +
152C ALA* 3.6 9.5 - - + +
153C SER* 3.0 21.3 + - - -
184C HIS* 4.2 13.8 + - + +
149D GLU* 4.0 26.2 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 150 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
146C GLN 3.1 5.9 + - - -
147C ALA 3.1 6.8 + - - -
148C LYS 2.8 3.0 + - - -
149C GLU* 1.3 74.6 - - - +
151C PHE* 1.3 53.3 + - - +
153C SER* 2.6 35.9 + - - -
154C VAL 3.6 1.4 + - - -
181C SER* 3.4 12.3 - - - -
184C HIS* 3.2 35.2 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 151 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
70C THR* 3.4 35.2 - - + -
73C ALA* 3.9 6.5 - - + -
74C TYR* 3.5 46.2 - + + -
77C ALA* 3.9 12.6 - - + -
78C ARG* 2.7 30.4 + - - +
147C ALA* 3.0 28.1 + - + -
148C LYS 3.0 4.1 + - - +
150C GLY* 1.3 73.6 - - - +
152C ALA* 1.3 62.0 + - - +
154C VAL* 3.1 8.7 + - - +
159C GLU* 5.8 0.4 - - - -
173C PHE* 3.8 13.5 - + - -
177C SER* 4.3 7.2 - - - -
178C LEU* 3.5 29.4 - - + -
181C SER* 3.5 20.1 - - - -
185C ILE* 4.4 5.6 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 152 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
77C ALA* 3.8 15.8 - - + +
78C ARG* 4.5 6.7 + - - +
148C LYS* 2.8 20.3 + - + +
149C GLU* 3.6 12.6 - - + +
151C PHE* 1.3 77.2 - - - +
153C SER* 1.3 62.4 + - - +
154C VAL 3.5 4.9 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with SER 153 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
149C GLU 3.0 11.4 + - - -
150C GLY 2.6 20.2 + - - -
152C ALA* 1.3 78.1 - - - +
154C VAL* 1.3 63.2 + - - +
155C ASP 3.5 2.9 + - - -
180C LEU 4.9 3.8 + - - -
184C HIS* 3.7 20.8 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 154 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
78C ARG* 2.9 25.9 + - - +
150C GLY 4.2 6.1 - - - +
151C PHE* 3.1 11.9 + - - +
152C ALA 4.1 2.9 - - - +
153C SER* 1.3 81.8 - - - +
155C ASP* 1.3 71.1 + - - +
156C VAL* 3.0 3.3 + - - +
158C LEU* 4.2 5.6 - - + -
159C GLU* 3.8 18.2 - - - +
176C VAL* 4.7 3.6 - - + -
177C SER* 4.0 12.3 - - - +
180C LEU* 3.4 54.1 - - + +
181C SER* 4.3 2.2 - - - +
----------------------------------------------------------
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