Contacts of the helix formed by residues 36 - 64 (chain G) in PDB entry 2X17
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 LEU 36 (chain G).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1432 PHE* 5.0 11.2 - - + -
31G PHE* 3.0 33.2 + - + +
32G GLU* 5.1 0.7 - - - -
34G LEU* 4.3 15.3 - - + +
35G GLY* 1.3 77.3 - - - +
37G GLU* 1.3 58.1 + - - +
38G GLY 3.3 2.2 - - - -
39G PHE* 3.5 23.7 + - + +
40G ALA* 3.1 23.4 + - - +
83G PRO* 4.1 20.0 - - + -
151G LEU* 4.3 25.4 - - + +
152G PHE* 5.6 1.1 - - - -
155G ASP* 3.4 29.4 - - + +
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Residues in contact with GLU 37 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1362 LYS* 3.0 45.3 + - + +
1402 LYS* 6.0 1.3 - - - +
32G GLU* 3.6 21.1 - - - +
35G GLY* 3.2 12.2 + - - +
36G LEU* 1.3 71.4 - - - +
38G GLY* 1.3 56.0 + - - +
40G ALA* 3.2 7.6 + - - +
41G ASN* 2.8 44.1 + - - +
155G ASP* 3.6 3.9 + - - +
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Residues in contact with GLY 38 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
37G GLU* 1.3 75.8 - - - +
39G PHE* 1.3 59.9 + - - +
41G ASN* 3.5 2.2 + - - +
42G TRP* 3.0 28.4 + - - +
155G ASP* 3.0 31.7 + - - -
158G LEU* 3.6 10.3 - - - +
159G SER* 3.8 19.8 - - - -
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Residues in contact with PHE 39 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
31G PHE* 3.5 32.8 - + + -
36G LEU* 3.7 22.0 - - + +
37G GLU 3.4 0.4 - - - -
38G GLY* 1.3 75.2 - - - +
40G ALA* 1.3 62.1 + - - +
42G TRP* 3.4 7.2 + - - +
43G MET* 3.1 28.2 + - - +
87G PHE* 3.7 31.8 - + - -
137G ILE* 4.5 3.4 - - + -
141G LEU* 4.2 25.4 - - + -
151G LEU* 4.0 13.9 - - + -
154G LEU* 4.2 12.8 - - + -
155G ASP* 3.1 49.0 + - + -
158G LEU* 3.6 23.6 - - + -
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Residues in contact with ALA 40 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
28G ALA* 3.6 23.5 - - - +
31G PHE* 3.8 3.5 - - - +
32G GLU* 3.3 34.3 - - - +
36G LEU 3.1 13.7 + - - +
37G GLU 3.2 8.5 + - - +
39G PHE* 1.3 77.8 - - - +
41G ASN* 1.3 59.7 + - - +
43G MET* 3.1 5.0 + - - +
44G LYS* 3.0 33.6 + - - +
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Residues in contact with ASN 41 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
32G GLU* 4.7 1.2 - - - +
37G GLU* 2.8 27.4 + - - +
38G GLY* 4.1 4.2 - - - +
40G ALA* 1.3 69.8 - - - +
42G TRP* 1.3 64.7 + - - +
44G LYS* 3.5 24.4 + - - +
45G ALA* 3.2 24.3 + - - +
159G SER* 5.4 5.6 + - - +
161G ARG 3.6 14.8 - - - +
162G ALA* 4.5 7.7 - - - +
163G PRO* 3.4 24.1 - - + +
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Residues in contact with TRP 42 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
24G TYR* 5.8 1.6 - + - -
38G GLY 3.0 19.0 + - - +
39G PHE* 3.5 7.4 - - - +
40G ALA 3.3 0.2 - - - -
41G ASN* 1.3 76.1 - - - +
43G MET* 1.3 91.6 + - + +
45G ALA* 3.6 3.1 + - - +
46G GLN* 3.1 38.8 + - + +
87G PHE* 4.2 12.1 - + - -
133G SER* 3.9 15.3 - - - -
134G VAL* 4.1 24.9 - - + -
137G ILE* 3.5 29.6 - - + +
158G LEU* 3.8 31.6 - - + +
161G ARG* 3.3 52.1 + - + +
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Residues in contact with MET 43 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
24G TYR* 3.4 48.8 - - + +
27G MET* 3.8 26.2 - - - -
28G ALA* 3.7 8.7 - - + +
31G PHE* 3.9 17.3 - - + -
39G PHE 3.1 17.3 + - - +
40G ALA 3.1 8.0 + - - +
42G TRP* 1.3 91.2 - - + +
44G LYS* 1.3 54.8 + - - +
46G GLN* 3.2 2.6 + - - +
47G ALA* 2.8 34.7 + - - +
87G PHE* 3.7 39.7 - - + -
90G ALA* 4.9 2.5 - - + -
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Residues in contact with LYS 44 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
24G TYR 5.5 0.2 - - - -
25G PHE* 4.8 11.0 - - + -
28G ALA* 3.9 11.2 - - + -
32G GLU* 3.0 27.4 + - - -
40G ALA 3.0 20.5 + - - +
41G ASN* 3.5 22.9 + - - +
43G MET* 1.3 73.7 - - - +
45G ALA* 1.3 57.9 + - - +
47G ALA* 3.4 9.0 + - - +
48G GLU* 3.2 30.5 + - - +
163G PRO* 4.0 25.1 - - + -
55Y LEU* 4.8 14.0 - - + +
58Y TYR* 3.4 31.1 - - - -
59Y ASN* 4.4 8.3 + - - -
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Residues in contact with ALA 45 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
41G ASN 3.2 16.5 + - - +
42G TRP 3.7 2.0 - - - +
43G MET 3.2 0.2 - - - -
44G LYS* 1.3 78.4 - - - +
46G GLN* 1.3 61.7 + - - +
48G GLU* 3.5 10.8 + - - +
49G GLU* 3.5 23.7 + - - +
161G ARG* 3.7 26.1 + - + +
162G ALA 3.7 23.1 - - - +
163G PRO* 4.1 8.0 - - + +
169Y LEU* 5.6 0.2 - - - +
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Residues in contact with GLN 46 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
24G TYR* 3.9 23.8 - - + -
42G TRP* 3.1 40.5 + - + +
43G MET* 3.2 6.5 + - - +
45G ALA* 1.3 73.3 - - - +
47G ALA* 1.3 65.1 + - - +
49G GLU* 3.4 12.6 + - - +
50G GLU* 3.0 24.4 + - - +
130G GLU* 2.8 40.7 + - - +
133G SER* 5.2 4.0 + - - -
134G VAL* 5.7 2.6 - - + +
161G ARG* 2.9 32.4 + - - +
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Residues in contact with ALA 47 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
21G ALA* 3.4 41.9 - - + +
24G TYR* 4.2 7.6 - - + +
25G PHE* 4.2 10.8 - - + +
43G MET 2.8 16.8 + - - +
44G LYS* 3.4 10.5 - - - +
45G ALA 3.3 0.2 - - - -
46G GLN* 1.3 74.1 - - - +
48G GLU* 1.3 63.5 + - - +
50G GLU 3.3 2.4 + - - -
51G ILE* 3.3 22.6 + - + +
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Residues in contact with GLU 48 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
44G LYS 3.2 11.0 + - - +
45G ALA* 3.6 10.5 - - - +
46G GLN 3.3 0.4 - - - -
47G ALA* 1.3 77.4 - - + +
49G GLU* 1.3 56.5 + - - +
51G ILE* 3.3 15.9 + - + +
52G GLY 3.0 21.8 + - - -
163G PRO* 3.3 19.9 - - - +
164G LYS* 2.9 29.9 + - - +
165G LEU* 3.1 32.5 + - + +
166G PRO* 3.5 2.3 - - - +
55Y LEU* 5.9 1.0 - - - +
165Y LEU* 4.1 18.1 - - + +
169Y LEU* 3.8 21.0 - - + +
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Residues in contact with GLU 49 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
45G ALA 3.6 14.1 - - - +
46G GLN* 3.4 18.6 + - - +
47G ALA 3.3 0.6 - - - -
48G GLU* 1.3 77.4 - - - +
50G GLU* 1.3 53.5 + - - +
52G GLY* 3.2 3.1 + - - -
53G HIS* 2.8 38.9 + - + -
130G GLU* 4.5 0.9 - - - +
161G ARG* 3.6 18.6 + - - +
164G LYS* 4.9 6.9 + - - -
1172G AG 2.9 23.9 - - - -
169Y LEU* 3.5 20.0 - - + +
170Y MET* 3.2 34.3 + - - +
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Residues in contact with GLU 50 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
17G GLU* 2.9 43.1 - - - +
20G SER* 3.5 14.8 + - - -
21G ALA* 3.7 16.4 - - - +
24G TYR* 3.8 16.1 - - + -
46G GLN* 3.0 35.1 + - - +
47G ALA 3.3 6.0 + - - +
48G GLU 3.2 0.6 - - - -
49G GLU* 1.3 74.1 - - - +
51G ILE* 1.3 58.7 + - - +
53G HIS* 3.1 11.2 + - - +
54G ALA* 2.9 28.6 + - - +
94G GLU* 4.0 4.4 - - - +
97G ILE* 5.6 1.7 - - - +
127G GLN* 5.3 4.5 + - - -
130G GLU* 3.3 14.6 - - - +
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Residues in contact with ILE 51 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
18G LEU* 4.9 14.8 - - + -
21G ALA* 3.7 15.7 - - + -
47G ALA* 3.3 18.2 + - + +
48G GLU* 3.5 16.8 - - + +
50G GLU* 1.3 76.0 - - - +
52G GLY* 1.3 60.2 - - - +
54G ALA* 3.3 7.4 + - - +
55G LEU* 3.1 34.3 + - + +
165G LEU* 6.3 0.9 - - + -
51Y ILE* 4.7 27.1 - - + -
165Y LEU* 4.4 17.9 - - + -
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Residues in contact with GLY 52 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
48G GLU 3.0 14.3 + - - -
49G GLU 3.4 5.6 - - - -
50G GLU 3.2 0.4 - - - -
51G ILE* 1.3 77.8 - - - +
53G HIS* 1.3 61.3 + - - +
55G LEU* 3.4 11.6 + - - +
56G ARG* 3.2 28.6 + - - +
166Y PRO* 6.0 0.4 - - - -
169Y LEU* 4.0 22.8 - - - +
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Residues in contact with HIS 53 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
17G GLU* 3.4 19.7 + - - +
49G GLU* 2.8 30.3 + - + -
50G GLU* 3.1 18.6 + - - +
52G GLY* 1.3 75.0 - - - +
54G ALA* 1.3 63.8 + - - +
56G ARG* 3.2 14.4 + - - +
57G PHE* 3.3 21.4 + - - -
122G TRP* 3.5 28.7 - + - -
123G PHE* 3.7 14.0 - + + -
126G GLU* 2.9 26.2 + - - +
127G GLN* 5.7 0.4 + - - -
130G GLU* 3.6 10.8 - - - -
1172G AG 2.2 30.9 - - - -
170Y MET* 5.7 0.2 - - + -
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Residues in contact with ALA 54 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
14G LEU* 3.5 26.9 - - + +
17G GLU* 4.0 10.9 - - + +
18G LEU* 3.8 34.3 - - + +
50G GLU 2.9 13.0 + - - +
51G ILE 3.5 9.2 - - - +
52G GLY 3.3 0.2 - - - -
53G HIS* 1.3 77.2 - - - +
55G LEU* 1.3 56.9 + - + +
57G PHE* 3.4 2.8 + - - -
58G TYR* 3.1 23.7 + - - +
25Y PHE* 5.4 3.1 - - + -
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Residues in contact with LEU 55 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
51G ILE* 3.1 34.3 + - + +
52G GLY* 3.7 11.4 - - - +
53G HIS 3.3 0.4 - - - -
54G ALA* 1.3 74.3 - - + +
56G ARG* 1.3 60.1 + - - +
58G TYR* 3.3 11.4 - - + +
59G ASN* 2.8 42.3 + - - +
25Y PHE* 3.8 29.8 - - + -
44Y LYS* 4.8 18.2 - - + +
48Y GLU* 5.7 1.6 - - - +
165Y LEU* 5.7 3.8 - - + -
166Y PRO* 4.1 30.1 - - + -
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Residues in contact with ARG 56 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
52G GLY 3.2 16.6 + - - +
53G HIS* 3.2 12.8 + - - +
55G LEU* 1.3 75.2 - - - +
57G PHE* 1.3 59.5 + - - +
59G ASN* 3.7 8.6 + - - +
60G TYR* 3.2 18.9 + - - +
119G PHE* 3.5 17.7 - - + -
122G TRP* 3.4 65.7 - - - +
123G PHE* 3.6 14.1 - - + -
170Y MET* 3.5 17.0 + - - +
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Residues in contact with PHE 57 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
10G LEU* 3.9 34.3 - - + +
13G GLN* 3.4 33.7 - - + -
14G LEU* 3.9 21.8 - - + -
17G GLU* 4.0 14.1 - - + -
53G HIS 3.3 21.2 + - - -
54G ALA 3.7 6.3 - - - +
55G LEU 3.3 0.2 - - - -
56G ARG* 1.3 73.8 - - - +
58G TYR* 1.3 66.3 + - - +
60G TYR* 3.3 1.4 + - - +
61G ILE* 3.1 29.9 + - + +
101G ILE* 4.0 13.7 - - + -
104G LEU* 4.4 0.9 - - + -
119G PHE* 3.5 24.5 - + - -
120G LEU* 4.1 10.8 - - + -
123G PHE* 3.5 29.4 - + - -
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Residues in contact with TYR 58 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
14G LEU* 3.5 12.0 - - + +
54G ALA 3.1 14.4 + - - +
55G LEU* 3.3 15.9 - - + +
57G PHE* 1.3 77.7 - - - +
59G ASN* 1.3 72.8 + - - +
61G ILE* 3.6 1.4 + - - +
62G TYR* 3.3 45.7 + + - -
68G VAL* 4.0 18.4 - - + -
25Y PHE* 3.7 31.2 - + + -
28Y ALA* 2.9 29.0 + - + -
29Y ALA* 3.9 22.0 - - + -
32Y GLU* 3.2 29.3 + - - +
44Y LYS* 3.4 21.0 - - - -
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Residues in contact with ASN 59 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
55G LEU* 2.8 32.8 + - - +
56G ARG* 4.0 8.3 - - - +
57G PHE 3.3 0.2 - - - -
58G TYR* 1.3 87.5 - - - +
60G TYR* 1.3 64.9 + - - +
62G TYR* 3.8 4.2 + - - +
63G ASP* 3.1 34.2 + - - +
32Y GLU* 5.4 0.9 - - - +
44Y LYS* 4.2 8.7 + - - -
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Residues in contact with TYR 60 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
2G LEU* 5.6 0.7 - - + -
10G LEU* 4.0 24.2 - - + -
56G ARG 3.2 17.7 + - - +
57G PHE 3.3 2.2 + - - +
59G ASN* 1.3 75.0 - - - +
61G ILE* 1.3 66.9 + - + +
63G ASP* 3.1 8.1 + - + +
64G ARG* 3.0 52.6 + - + +
115G SER* 3.1 14.0 - - - -
116G THR* 2.8 50.7 + - + -
119G PHE* 3.6 45.1 - + + -
128J VAL* 4.2 17.7 - - + -
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Residues in contact with ILE 61 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
2G LEU* 4.9 1.7 - - - +
7G LEU* 3.8 13.9 - - + -
10G LEU* 3.8 43.1 - - + -
11G ASN* 4.1 13.5 - - - +
14G LEU* 4.0 12.1 - - + -
57G PHE 3.1 22.2 + - - +
58G TYR 4.0 0.2 - - - +
60G TYR* 1.3 79.0 - - + +
62G TYR* 1.3 55.8 + - + +
64G ARG* 3.2 11.8 + - - +
65G ASN 3.3 0.2 + - - -
66G GLY* 2.8 28.5 + - - -
67G ARG 3.5 27.6 - - - +
68G VAL* 3.7 31.2 - - + -
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Residues in contact with TYR 62 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
58G TYR* 3.3 44.1 + + + +
59G ASN* 4.3 3.8 - - - +
60G TYR 3.3 0.4 - - - -
61G ILE* 1.3 74.8 - - - +
63G ASP* 1.3 64.8 + - - +
64G ARG 3.2 0.2 - - - -
65G ASN* 3.4 11.0 + - - +
66G GLY 3.4 24.2 - - - +
67G ARG* 3.5 7.3 + - - -
68G VAL* 3.4 37.3 + - + -
132J ALA* 5.3 0.7 - - - +
29Y ALA* 2.5 32.0 + - - +
32Y GLU* 3.7 30.3 - - + +
33Y ASP* 3.7 24.5 - - + -
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Residues in contact with ASP 63 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
59G ASN* 3.1 29.8 + - - +
60G TYR* 3.1 11.8 + - - +
62G TYR* 1.3 79.2 - - - +
64G ARG* 1.3 63.4 + - - +
65G ASN 3.3 2.5 + - - -
128J VAL* 4.2 23.2 - - + +
129J GLU* 5.7 6.0 - - - +
131J GLU* 5.5 2.4 - - - +
132J ALA* 3.6 37.5 + - + +
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Residues in contact with ARG 64 (chain G).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1G MET* 5.0 4.9 - - - +
2G LEU* 3.8 39.2 - - + +
60G TYR* 3.0 57.3 + - + +
61G ILE* 3.2 2.4 + - - +
63G ASP* 1.3 78.5 + - - +
65G ASN* 1.3 68.2 + - - +
66G GLY 3.4 1.7 + - - -
113G ASP* 4.6 7.5 + - - -
115G SER* 3.5 18.5 + - - -
102J TYR* 3.2 22.8 + - - -
127J GLN 5.4 0.6 - - - -
128J VAL* 4.0 24.5 - - - +
131J GLU* 3.8 27.6 + - - +
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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