Contacts of the helix formed by residues 36 - 64 (chain A) in PDB entry 2J3T
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 ASN 36 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
34A TYR* 3.9 9.0 - - - +
35A GLU* 1.3 80.6 - - + +
37A ASP* 1.3 69.3 + - - +
38A GLU* 3.2 37.1 + - - +
39A ASP* 3.2 39.8 + - - +
40A VAL* 3.8 2.5 + - - -
124A ALA* 5.5 2.6 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 37 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
31A CYS* 3.8 25.3 - - - +
34A TYR 5.7 0.5 - - - +
35A GLU 4.2 1.7 + - - -
36A ASN* 1.3 73.9 + - - +
38A GLU* 1.3 64.1 + - - +
40A VAL* 2.9 19.4 + - - +
41A ASN* 3.1 16.7 + - - -
123A SER* 3.4 18.1 + - - -
124A ALA* 4.2 9.2 + - + +
125A LEU* 3.6 34.4 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 38 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
36A ASN* 3.2 26.7 + - - +
37A ASP* 1.3 77.4 - - - +
39A ASP* 1.3 59.7 + - - +
41A ASN* 3.5 13.8 - - - +
42A LYS* 3.4 36.7 + - - +
124A ALA* 4.7 15.1 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 39 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
34A TYR* 3.6 30.5 - - + +
36A ASN* 3.2 34.3 + - - +
37A ASP 3.0 0.8 - - - -
38A GLU* 1.3 76.5 - - - +
40A VAL* 1.3 65.3 + - - +
41A ASN 3.2 0.2 - - - -
42A LYS* 3.2 21.9 + - - +
43A GLN* 3.0 23.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 40 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
27A VAL* 5.0 2.5 - - + +
30A LEU* 3.9 41.5 - - + +
31A CYS* 4.1 15.9 - - - -
34A TYR* 4.0 18.8 - - + +
36A ASN 4.2 4.5 - - - +
37A ASP* 2.9 15.7 + - - +
39A ASP* 1.3 77.5 - - - +
41A ASN* 1.3 62.6 + - - +
43A GLN* 3.4 4.6 + - - +
44A LEU* 3.0 44.3 + - + +
125A LEU* 3.5 23.6 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 41 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
37A ASP 3.1 9.0 + - - +
38A GLU* 3.5 14.7 - - - +
39A ASP 3.2 0.2 - - - -
40A VAL* 1.3 77.4 - - - +
42A LYS* 1.3 61.3 + - + +
44A LEU* 3.9 1.0 - - - +
45A ASP* 3.2 14.0 + - - +
124A ALA 2.9 22.9 - - - +
125A LEU* 3.2 19.0 - - - +
126A ILE* 2.9 39.5 + - + +
129A ASN* 2.7 35.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 42 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
38A GLU* 3.4 26.2 + - - +
39A ASP* 3.2 23.5 + - - +
41A ASN* 1.3 76.6 - - + +
43A GLN* 1.3 64.7 + - - +
45A ASP* 3.6 6.2 + - - +
46A ARG* 3.1 23.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLN 43 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
30A LEU* 2.8 34.6 - - + +
34A TYR* 2.7 31.3 + - + +
39A ASP 3.0 15.6 + - - +
40A VAL* 4.1 3.4 - - - +
42A LYS* 1.3 75.1 - - - +
44A LEU* 1.3 60.9 + - - +
46A ARG* 3.4 18.5 + - - +
47A MET* 2.9 49.8 + - + +
17B GLU* 2.5 40.8 + - - +
18B LEU* 6.0 0.6 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 44 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
23A TYR* 3.6 26.0 - - + +
26A LEU* 4.2 21.1 - - + -
27A VAL* 4.7 9.4 - - + -
30A LEU* 3.4 25.4 - - + -
40A VAL* 3.0 40.4 + - + +
41A ASN* 3.9 4.0 - - - +
43A GLN* 1.3 75.8 - - - +
45A ASP* 1.3 57.8 + - - +
47A MET* 4.5 3.8 - - - -
48A GLY 2.9 21.5 + - - -
125A LEU* 4.6 5.4 - - + -
126A ILE 4.3 9.9 - - - +
127A TYR 3.9 9.9 - - - +
129A ASN* 4.3 2.9 - - + -
130A LEU* 3.3 27.9 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 45 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
41A ASN 3.2 16.6 + - - +
42A LYS* 3.8 6.1 - - - +
44A LEU* 1.3 77.0 - - - +
46A ARG* 1.3 63.4 + - - +
49A TYR* 2.9 23.4 + - - +
129A ASN* 3.8 19.1 + - - +
132A CYS* 3.9 8.7 - - - +
133A GLY* 3.1 18.1 + - - -
136A ARG* 2.6 42.7 + - - -
148A ALA 5.4 0.5 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 46 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
42A LYS 3.1 17.3 + - - +
43A GLN* 3.7 23.6 - - - +
44A LEU 3.3 0.2 - - - -
45A ASP* 1.3 79.5 + - - +
47A MET* 1.3 66.0 + - - +
49A TYR* 3.1 11.7 + - + +
50A ASN* 3.0 41.5 + - - +
136A ARG* 5.4 0.4 - - - +
17B GLU* 2.4 46.3 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with MET 47 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
26A LEU* 3.9 42.6 - - + -
30A LEU* 4.5 5.8 - - - -
43A GLN* 2.9 42.9 + - + +
44A LEU* 3.8 6.3 - - - +
46A ARG* 1.3 74.3 - - - +
48A GLY* 1.3 65.6 + - - +
50A ASN* 3.2 12.7 + - - +
51A ILE* 3.1 25.8 + - - +
130A LEU* 4.0 9.6 - - + -
10B LEU* 5.1 1.1 - - + +
13B GLU* 3.3 45.0 - - + +
14B MET* 3.9 5.8 - - + +
17B GLU* 4.3 20.4 - - + +
18B LEU* 5.9 0.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 48 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
44A LEU 2.9 13.4 + - - -
45A ASP 3.4 0.9 + - - -
46A ARG 3.2 0.2 - - - -
47A MET* 1.3 77.7 - - - +
49A TYR* 1.3 49.9 + - - +
51A ILE* 2.9 8.4 + - - +
52A GLY 2.7 32.1 + - - -
130A LEU* 3.5 34.7 - - - +
133A GLY 3.5 6.5 - - - -
134A VAL* 3.5 8.0 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 49 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
45A ASP 2.9 15.5 + - - +
46A ARG* 3.1 14.8 + - + +
48A GLY* 1.3 75.7 - - - +
50A ASN* 1.3 76.2 + - - +
52A GLY* 3.7 0.3 - - - -
53A VAL* 3.1 43.6 + - + +
133A GLY 3.2 13.1 - - - +
136A ARG* 4.1 24.5 - - - +
137A GLY* 3.4 28.3 - - - -
140A GLU* 2.6 38.5 + - - -
141A MET* 4.3 2.4 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 50 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
46A ARG* 3.0 38.7 + - - +
47A MET* 3.2 5.6 + - - +
49A TYR* 1.3 88.2 - - - +
51A ILE* 1.3 60.6 + - - +
53A VAL* 3.3 19.6 - - - +
54A ARG* 3.5 13.9 - - - +
13B GLU* 3.4 37.8 + - - +
17B GLU* 5.2 2.8 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 51 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
19A PHE* 6.1 0.4 - - + -
47A MET 3.1 13.8 + - - +
48A GLY 2.9 7.9 + - - +
50A ASN* 1.3 77.6 - - - +
52A GLY* 1.3 55.7 + - - +
54A ARG* 3.1 6.1 + - - +
55A LEU* 2.7 47.6 + - + +
130A LEU* 4.4 23.6 - - + -
134A VAL* 4.3 11.0 - - + -
1068A PLM 6.2 0.4 - - + -
6B LEU* 5.2 6.3 - - + +
9B PHE* 3.8 25.9 - - + +
10B LEU* 3.7 34.5 - - + +
13B GLU* 3.4 18.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 52 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
48A GLY 2.7 16.6 + - - -
49A TYR 3.2 2.8 + - - -
51A ILE* 1.3 75.6 - - - +
53A VAL* 1.3 61.5 + - - +
55A LEU* 4.2 2.5 - - - -
56A ILE* 3.1 20.4 + - - +
134A VAL* 3.6 31.4 - - - +
137A GLY 4.3 0.2 - - - -
138A ALA* 3.4 19.2 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 53 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
49A TYR* 3.1 43.4 + - + +
50A ASN* 3.3 24.2 - - - +
52A GLY* 1.3 74.3 - - - +
54A ARG* 1.3 62.3 + - + +
56A ILE* 3.5 14.0 - - - +
57A GLU* 4.3 6.1 - - - +
137A GLY* 3.6 15.9 - - - +
141A MET* 3.7 29.0 - - + +
117C LEU* 4.5 15.3 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 54 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
50A ASN 3.5 16.4 - - - +
51A ILE* 3.1 7.8 + - - +
52A GLY 3.0 0.2 - - - -
53A VAL* 1.3 82.8 - - + +
55A LEU* 1.3 65.4 + - - +
56A ILE 3.2 1.6 - - - -
57A GLU* 3.1 22.5 + - - +
58A ASP 3.7 1.7 + - - -
9B PHE* 4.2 18.9 - - + -
13B GLU* 5.6 2.2 - - - +
109C VAL 3.3 12.9 + - - -
110C VAL* 2.9 41.8 + - + +
112C ASN 3.7 6.9 + - - -
113C PRO* 4.1 15.9 + - - +
115C CYS 3.0 21.6 + - - -
116C PRO* 4.4 1.8 - - - +
117C LEU* 3.2 41.9 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 55 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
51A ILE* 2.7 25.4 + - + +
52A GLY* 4.0 3.8 - - - +
54A ARG* 1.3 71.9 - - - +
56A ILE* 1.3 64.0 + - - +
58A ASP* 3.0 4.4 + - - +
59A PHE* 2.9 21.6 + - + +
86A TYR* 3.3 39.3 - - + +
134A VAL* 3.9 25.4 - - + -
138A ALA* 5.8 0.4 - - + -
1068A PLM 4.0 17.9 - - + -
5B VAL* 3.8 7.2 - - + -
6B LEU* 4.0 20.4 - - + -
9B PHE* 3.6 29.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 56 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
52A GLY 3.1 13.2 + - - +
53A VAL 3.5 21.8 - - - +
55A LEU* 1.3 76.3 - - - +
57A GLU* 1.3 63.9 + - + +
59A PHE* 3.3 7.1 + - + +
60A LEU* 3.0 41.0 + - + +
138A ALA* 3.7 25.5 - - + +
141A MET* 3.6 19.3 - - + -
142A VAL* 4.2 10.3 - - + -
1068A PLM 3.7 34.1 - - + -
78C THR* 3.8 23.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 57 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
53A VAL 4.3 6.6 - - - +
54A ARG* 3.4 11.9 - - - +
55A LEU 3.1 0.4 - - - -
56A ILE* 1.3 80.6 - - + +
58A ASP* 1.3 65.6 + - - +
60A LEU* 3.4 0.6 + - - -
61A ALA* 3.1 23.6 + - - +
141A MET* 5.5 1.0 - - - +
11C ARG* 5.2 5.0 + - - -
78C THR* 2.9 36.7 + - - +
80C ILE* 4.2 12.1 - - - +
101C TYR* 2.7 42.1 + - - +
105C TYR* 4.7 4.9 + - - +
106C VAL* 4.4 7.6 - - + -
110C VAL* 3.8 28.3 - - + -
117C LEU* 5.9 3.2 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 58 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
54A ARG 3.7 2.2 + - - +
55A LEU* 3.0 17.1 + - + +
57A GLU* 1.3 77.9 - - - +
59A PHE* 1.3 62.2 + - - +
61A ALA* 3.4 1.7 + - - +
62A ARG* 3.0 62.7 + - - +
86A TYR* 2.7 25.3 + - - +
5B VAL* 3.6 13.0 - - - +
9B PHE* 4.5 8.1 - - + -
106C VAL* 4.0 16.1 - - + +
111C LYS* 3.5 24.8 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 59 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
55A LEU* 2.9 9.3 + - + +
56A ILE* 3.5 11.7 - - + +
58A ASP* 1.3 76.3 - - - +
60A LEU* 1.3 70.5 + - + +
62A ARG* 3.1 2.8 + - - +
63A SER* 2.8 46.7 + - - -
65A VAL* 3.8 10.3 - - + -
77A VAL* 3.8 27.4 - - + -
81A VAL* 3.6 26.2 - - + -
82A ALA* 3.5 24.7 - - + -
85A MET* 3.9 12.6 - - + -
86A TYR* 3.0 34.7 + + + +
1068A PLM 3.9 25.6 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 60 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
56A ILE* 3.0 31.1 + - + +
59A PHE* 1.3 83.3 - - + +
61A ALA* 1.3 58.4 + - - +
63A SER* 4.1 2.9 - - - -
64A ASN* 3.1 28.6 + - - +
65A VAL* 3.6 27.5 + - + +
142A VAL* 4.3 3.6 - - + -
1068A PLM 5.1 4.5 - - + -
76C THR* 5.6 0.2 - - - -
77C PRO* 3.4 38.4 - - + -
78C THR* 3.2 38.8 - - + +
98C HIS* 4.5 2.4 + - - -
101C TYR* 3.7 15.2 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 61 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
57A GLU 3.1 18.3 + - - +
58A ASP* 3.9 3.8 - - - +
59A PHE 3.3 0.2 - - - -
60A LEU* 1.3 76.7 - - - +
62A ARG* 1.3 62.9 + - + +
64A ASN* 4.0 2.0 - - - +
98C HIS* 3.3 25.7 + - - -
101C TYR* 3.6 22.1 - - + -
102C SER* 3.6 29.7 + - - +
106C VAL* 4.0 7.9 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 62 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
58A ASP* 3.0 50.8 + - - +
59A PHE 3.1 2.0 + - - +
61A ALA* 1.3 83.2 - - + +
63A SER* 1.3 59.7 + - - +
64A ASN* 4.3 4.3 - - - +
85A MET* 3.6 37.7 + - + +
86A TYR* 3.7 9.3 - - - -
3B ASP* 2.8 38.7 + - - -
5B VAL* 4.0 3.4 - - - +
102C SER* 6.0 0.4 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with SER 63 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
59A PHE* 2.8 49.2 + - - -
60A LEU* 4.1 0.2 - - - -
62A ARG* 1.3 77.0 - - - +
64A ASN* 1.3 73.3 + - - +
65A VAL* 3.4 21.1 + - - +
81A VAL* 4.1 11.0 - - - -
85A MET* 4.2 6.3 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 64 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
60A LEU 3.1 14.9 + - - -
61A ALA 4.0 6.2 - - - +
62A ARG 4.3 4.3 - - - +
63A SER* 1.3 80.8 + - - +
65A VAL* 1.3 62.9 + - - +
66A GLY 3.9 1.0 + - - -
74C TYR* 4.8 2.8 + - - -
98C HIS* 3.4 40.4 + - - -
----------------------------------------------------------
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