Contacts of the helix formed by residues 42 - 71 (chain N) in PDB entry 3A68
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 VAL 42 (chain N).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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38N ARG* 3.5 3.0 + - - +
40N LYS* 4.3 4.7 + - - -
41N TYR* 1.3 80.5 - - - +
43N ASP* 1.3 67.5 + - - +
44N GLU* 3.9 8.7 - - + +
45N SER* 3.1 29.5 + - - +
46N GLU 3.1 9.9 + - - -
157N ASN* 3.8 33.0 - - + +
159N ASP* 4.9 0.6 + - - -
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Residues in contact with ASP 43 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
38N ARG* 3.0 24.2 + - - +
42N VAL* 1.3 72.9 - - - +
44N GLU* 1.3 57.8 + - - +
46N GLU* 3.3 12.4 + - - +
47N SER* 2.9 34.6 + - - +
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Residues in contact with GLU 44 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
42N VAL* 3.2 6.2 + - + +
43N ASP* 1.3 78.5 - - - +
45N SER* 1.3 56.6 + - - +
47N SER* 3.5 6.7 + - - -
48N ALA* 2.9 27.6 + - + +
153N VAL* 3.6 18.8 - - + +
156N LYS* 2.7 32.8 + - - +
157N ASN* 2.8 34.9 + - - +
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Residues in contact with SER 45 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
41N TYR* 4.0 16.6 - - - -
42N VAL* 3.1 23.8 + - - +
44N GLU* 1.3 75.7 - - - +
46N GLU* 1.3 67.4 + - - +
48N ALA* 3.2 6.7 + - - +
49N VAL* 2.9 28.6 + - - +
153N VAL* 4.4 6.2 - - - +
154N ALA* 4.7 1.0 - - - -
157N ASN* 4.1 14.9 + - - +
159N ASP* 4.2 9.3 + - - +
162N LEU* 3.8 22.5 - - - +
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Residues in contact with GLU 46 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
38N ARG* 3.6 26.9 + - - +
41N TYR* 3.7 21.2 - - + -
42N VAL 3.1 9.3 + - - +
43N ASP* 3.6 17.2 - - - +
45N SER* 1.3 79.1 - - - +
47N SER* 1.3 63.5 + - - +
49N VAL 3.3 1.2 + - - -
50N ASN* 3.1 15.5 + - - +
102N GLN* 3.0 37.3 + - - +
107N GLY* 3.4 5.3 - - - -
108N LYS* 2.7 35.4 + - - +
110N LYS* 6.0 3.3 - - - -
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Residues in contact with SER 47 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
43N ASP* 2.9 21.3 + - - +
44N GLU* 3.7 7.9 - - - -
46N GLU* 1.3 78.2 + - - +
48N ALA* 1.3 57.6 + - - +
50N ASN* 3.2 10.2 + - - +
51N GLU* 2.9 27.6 + - - +
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Residues in contact with ALA 48 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
44N GLU* 2.9 18.5 + - + +
45N SER* 3.2 3.6 + - - +
47N SER* 1.3 76.2 - - - +
49N VAL* 1.3 62.8 + - - +
51N GLU* 3.3 9.6 + - - +
52N GLN* 3.0 19.2 + - - +
150N LEU* 3.5 28.8 - - + +
153N VAL* 4.0 24.0 - - + -
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Residues in contact with VAL 49 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
41N TYR* 3.3 16.8 - - - +
45N SER 2.9 20.1 + - - +
46N GLU 3.7 4.7 - - - +
48N ALA* 1.3 73.8 - - - +
50N ASN* 1.3 64.8 + - - +
52N GLN* 3.1 6.2 + - - +
53N ILE* 3.0 24.6 + - + +
98N LEU* 3.9 31.8 - - + +
101N TYR* 4.7 4.3 - - + -
102N GLN* 3.7 22.0 - - + +
150N LEU* 4.3 10.8 - - + -
162N LEU* 3.9 26.9 - - + -
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Residues in contact with ASN 50 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
46N GLU* 3.1 17.2 + - - +
47N SER* 3.2 10.5 + - - +
49N VAL* 1.3 74.2 - - - +
51N GLU* 1.3 63.8 + - - +
53N ILE* 3.4 15.7 + - - +
54N ASN* 3.3 20.3 + - - +
102N GLN* 3.0 19.3 + - - +
108N LYS 3.1 20.6 + - - -
109N VAL* 3.4 4.2 - - - -
110N LYS* 3.1 50.0 + - + +
112N GLN* 5.5 3.9 - - + +
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Residues in contact with GLU 51 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
47N SER 2.9 14.4 + - - +
48N ALA* 3.4 13.0 - - - +
49N VAL 3.2 0.2 - - - -
50N ASN* 1.3 77.0 - - - +
52N GLN* 1.3 56.9 + - - +
54N ASN* 3.1 10.7 + - - +
55N VAL* 3.0 31.5 + - + +
112N GLN* 5.8 0.7 - - - +
146N LYS* 5.6 7.2 + - + +
14Q ILE* 3.4 43.2 - - - +
15Q PHE* 3.7 25.3 - - - +
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Residues in contact with GLN 52 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
48N ALA 3.0 13.1 + - - +
49N VAL 3.7 6.7 - - - +
51N GLU* 1.3 73.6 - - - +
53N ILE* 1.3 67.1 + - - +
55N VAL* 3.2 18.9 + - - +
56N GLU* 2.8 55.6 + - - +
98N LEU* 3.5 20.4 - - + -
143N THR* 4.0 5.1 + - - +
146N LYS* 3.4 28.2 - - - +
147N LEU* 3.5 29.6 - - + +
150N LEU* 4.0 18.2 - - + +
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Residues in contact with ILE 53 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
49N VAL* 3.0 21.3 + - + +
50N ASN* 3.6 30.1 - - - +
52N GLN* 1.3 77.6 - - - +
54N ASN* 1.3 58.2 + - - +
56N GLU* 3.3 2.6 + - - +
57N TYR* 3.0 28.6 + - + +
95N ALA* 3.9 11.0 - - + +
98N LEU* 3.5 28.9 - - + +
99N MET* 3.7 37.9 - - + +
102N GLN* 4.7 0.2 - - + -
109N VAL* 4.4 8.5 - - + -
110N LYS 5.8 0.9 - - - +
111N LEU* 3.7 30.3 - - + -
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Residues in contact with ASN 54 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
50N ASN 3.3 8.3 + - - +
51N GLU* 3.1 16.9 + - - +
53N ILE* 1.3 77.7 - - - +
55N VAL* 1.3 66.7 + - - +
57N TYR* 4.4 4.0 - - - +
58N ASN* 2.9 49.9 + - - +
112N GLN* 3.5 34.1 + - + +
113N SER 3.1 25.1 + - - +
114N ILE* 4.4 2.8 - - - +
14Q ILE* 4.9 4.4 + - - +
15Q PHE* 3.8 20.6 + - - +
61R TYR* 4.2 6.0 + - - -
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Residues in contact with VAL 55 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
51N GLU* 3.0 33.5 + - + +
52N GLN* 3.2 30.0 + - - +
54N ASN* 1.3 75.9 - - - +
56N GLU* 1.3 64.4 + - - +
58N ASN* 3.2 3.6 + - - +
59N VAL* 3.0 22.8 + - + +
143N THR* 4.3 18.6 - - + +
146N LYS* 4.1 31.4 - - + -
15Q PHE* 4.0 30.2 - - + -
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Residues in contact with GLU 56 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
52N GLN* 2.8 44.8 + - - +
53N ILE 3.8 3.1 - - - +
55N VAL* 1.3 75.5 - - - +
57N TYR* 1.3 59.0 + - - +
59N VAL* 3.3 4.4 + - - +
60N SER* 2.9 28.1 + - - -
91N GLU* 3.1 16.1 - - - +
94N HIS* 3.5 13.0 - - + +
95N ALA* 3.8 18.2 - - + +
98N LEU* 3.8 17.7 - - + -
143N THR* 3.5 12.6 - - - +
147N LEU* 4.0 10.0 - - - +
170N TYR* 4.4 4.4 - - - -
214N CA 2.5 28.3 - - - -
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Residues in contact with TYR 57 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
53N ILE* 3.0 15.9 + - + +
54N ASN* 3.9 7.0 - - - +
56N GLU* 1.3 76.7 - - - +
58N ASN* 1.3 63.8 + - - +
60N SER* 3.3 13.4 + - - -
61N TYR* 3.1 21.9 + + + +
92N ARG* 3.7 24.5 + - + -
95N ALA* 3.8 21.0 - - + +
99N MET* 4.5 5.4 - - - -
111N LEU* 4.5 10.5 - - + -
114N ILE* 3.7 21.7 - - + +
57R TYR* 5.4 11.9 - + - -
60R SER* 4.9 2.4 + - - -
61R TYR* 3.6 40.8 - + - +
64R HIS* 2.7 41.8 + + - +
88R SER* 4.6 1.6 + - - -
114R ILE* 6.4 0.2 - - + -
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Residues in contact with ASN 58 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
54N ASN* 2.9 53.1 + - - +
55N VAL 3.6 4.9 - - - +
57N TYR* 1.3 75.5 - - - +
59N VAL* 1.3 64.5 + - - +
61N TYR* 3.1 3.8 + - - +
62N VAL* 3.0 27.4 + - - +
113N SER 4.1 5.5 + - - -
114N ILE* 3.2 25.7 - - - +
115N VAL* 3.5 21.1 + - - +
15Q PHE* 3.9 27.5 + - + -
17Q PRO* 4.2 7.2 - - + +
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Residues in contact with VAL 59 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
55N VAL* 3.0 20.2 + - + +
56N GLU* 3.7 6.5 - - - +
58N ASN* 1.3 72.4 - - - +
60N SER* 1.3 67.6 + - - +
62N VAL* 3.3 7.4 + - + +
63N TYR* 3.0 51.2 + - + -
91N GLU* 3.6 17.0 - - - +
139N LEU* 4.3 26.7 - - + +
140N GLU* 4.4 3.8 - - - +
142N LEU* 6.3 0.2 - - + -
143N THR* 3.5 25.4 - - + +
15Q PHE* 5.0 5.4 - - + -
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Residues in contact with SER 60 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
56N GLU 2.9 10.0 + - - -
57N TYR* 3.3 17.3 - - - -
59N VAL* 1.3 78.9 - - - +
61N TYR* 1.3 62.1 + - - +
63N TYR 3.4 0.5 + - - -
64N HIS* 3.0 9.5 + - - +
88N SER* 2.8 44.4 + - - +
91N GLU* 3.5 23.6 - - - +
92N ARG* 3.7 18.7 - - - +
57R TYR* 5.0 2.3 + - - -
92R ARG* 4.6 4.3 + - - -
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Residues in contact with TYR 61 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
57N TYR* 3.1 13.9 + + - +
58N ASN 3.1 8.0 + - - +
60N SER* 1.3 74.0 - - - +
62N VAL* 1.3 66.9 + - + +
64N HIS* 3.1 5.9 + - - +
65N ALA* 3.0 21.5 + - - +
114N ILE* 3.5 28.9 - - + -
115N VAL 3.9 4.7 - - - -
117N PRO* 3.7 30.7 - - + +
54R ASN* 4.2 5.4 + - - -
57R TYR* 3.5 50.7 - + - +
111R LEU* 3.6 20.7 - - + +
112R GLN 2.7 37.1 + - - -
114R ILE* 3.8 18.0 - - + +
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Residues in contact with VAL 62 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
58N ASN* 3.0 21.6 + - - +
59N VAL* 3.8 8.1 - - + +
61N TYR* 1.3 77.7 - - + +
63N TYR* 1.3 62.6 + - + +
65N ALA* 3.1 5.0 + - - +
66N MET* 2.9 41.1 + - + +
117N PRO* 4.1 11.9 - - + -
121N PHE* 5.1 0.9 - - + -
139N LEU* 4.6 14.8 - - + -
17Q PRO* 4.0 21.8 - - + -
18Q PHE* 3.7 40.2 - - + -
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Residues in contact with TYR 63 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
59N VAL* 3.0 35.0 + - + +
60N SER 3.7 4.3 - - - +
62N VAL* 1.3 78.2 - - + +
64N HIS* 1.3 57.4 + - - +
66N MET* 3.2 13.5 + - + +
67N PHE* 2.9 24.9 + - - +
83N PHE* 5.4 1.6 - + - -
84N PHE* 3.6 41.1 - + - +
87N SER* 3.6 21.8 - - - -
88N SER 3.7 4.7 - - - +
91N GLU* 3.6 21.1 - - + -
136N ALA* 3.8 31.7 + - + +
139N LEU* 4.8 5.1 - - + +
140N GLU* 2.5 41.8 + - - +
181N ILE* 3.9 5.5 - - + +
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Residues in contact with HIS 64 (chain N).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
60N SER 3.0 8.4 + - - +
61N TYR 3.1 8.7 + - - +
63N TYR* 1.3 76.3 - - - +
65N ALA* 1.3 58.5 + - - +
67N PHE* 3.3 16.1 + + + +
68N ALA* 2.9 27.9 + - - +
85N LYS* 5.0 2.0 - - + -
88N SER* 3.5 20.1 - - - +
57R TYR* 2.7 35.4 + + - +
92R ARG* 3.6 19.1 + - + -
96R GLU* 2.7 41.2 + - + +
99R MET* 3.7 28.7 - - + +
111R LEU* 4.1 9.0 - - + -
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Residues in contact with ALA 65 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
61N TYR 3.0 12.0 + - - +
62N VAL 3.1 9.6 + - - +
64N HIS* 1.3 76.8 - - - +
66N MET* 1.3 60.2 + - - +
68N ALA* 3.3 7.3 + - - +
69N TYR* 3.0 18.2 + - - +
117N PRO* 3.9 16.2 - - + -
118N LEU 3.4 25.4 - - - +
119N SER* 4.4 4.8 - - - +
121N PHE* 3.7 10.5 - - + -
109R VAL* 6.2 0.2 - - - -
111R LEU* 3.7 11.8 - - + +
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Residues in contact with MET 66 (chain N).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
62N VAL* 2.9 29.1 + - + +
63N TYR* 3.2 20.2 + - + +
65N ALA* 1.3 74.7 - - - +
67N PHE* 1.3 65.9 + - - +
69N TYR* 3.2 1.4 + - - +
70N PHE* 3.0 31.8 + - + -
84N PHE* 3.5 45.8 - - + -
121N PHE* 3.7 37.7 - - + -
132N ALA* 3.9 9.9 - - + +
135N LEU* 3.8 29.4 - - + -
136N ALA* 4.1 7.0 - - - +
139N LEU* 5.0 3.1 - - + -
18Q PHE* 5.6 0.4 - - + -
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Residues in contact with PHE 67 (chain N).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
63N TYR 2.9 12.6 + - - +
64N HIS* 3.5 25.8 - + - +
66N MET* 1.3 76.4 - - - +
68N ALA* 1.3 69.8 + - - +
69N TYR 3.2 0.2 + - - -
70N PHE* 3.2 1.7 + - - +
71N ASP* 2.9 48.0 + - + +
81N ALA* 3.3 28.4 - - + +
84N PHE* 3.7 7.1 - - - +
85N LYS* 3.6 53.8 - - + +
96R GLU* 4.5 6.5 - - + -
99R MET* 4.1 15.3 - - + -
100R GLU* 3.9 25.6 - - + -
103R ASN* 5.5 0.7 - - - -
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Residues in contact with ALA 68 (chain N).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
64N HIS 2.9 17.2 + - - +
65N ALA* 3.6 8.3 - - - +
66N MET 3.2 0.2 - - - -
67N PHE* 1.3 82.8 - - + +
69N TYR* 1.3 61.9 + - - +
71N ASP 3.7 0.3 + - - -
72N ARG* 3.7 8.6 + - - +
99R MET* 3.9 9.2 - - + -
103R ASN* 2.9 27.4 + - - +
109R VAL* 3.7 39.9 - - + +
----------------------------------------------------------
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Residues in contact with TYR 69 (chain N).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
65N ALA 3.0 6.4 + - - +
66N MET 3.6 7.0 - - - +
67N PHE 3.1 0.2 - - - -
68N ALA* 1.3 77.4 - - - +
70N PHE* 1.3 89.2 + + - +
72N ARG* 3.2 61.2 + - - +
75N VAL* 3.6 32.7 - - + +
119N SER 3.7 10.3 + - - +
120N ASP* 3.9 6.1 - - + -
121N PHE* 3.6 42.8 - + + -
122N ASP* 3.3 32.6 - - + +
128N ASP* 4.2 7.1 + - + +
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Residues in contact with PHE 70 (chain N).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
66N MET* 3.0 28.6 + - + +
69N TYR* 1.3 93.9 - + + +
71N ASP* 1.3 58.1 + - - +
72N ARG 3.2 2.3 + - - -
75N VAL* 3.5 16.2 - - + -
76N ALA* 3.8 5.7 + - - -
77N LEU* 3.5 43.5 + - + +
80N LEU* 3.6 21.5 - - + -
81N ALA* 3.9 24.7 - - - +
84N PHE* 3.8 16.6 - + - -
121N PHE* 4.4 8.3 - + + -
128N ASP* 3.6 25.4 - - + -
132N ALA* 3.4 36.1 - - + -
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Residues in contact with ASP 71 (chain N).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
67N PHE* 2.9 45.7 + - + +
69N TYR 3.2 0.4 - - - -
70N PHE* 1.3 75.0 - - - +
72N ARG* 1.3 62.3 - - - +
81N ALA* 4.0 7.5 - - + +
100R GLU* 4.2 12.6 - - - +
103R ASN* 3.0 35.7 + - - +
179S LYS* 3.0 37.7 + - - -
183S GLU* 4.6 2.3 - - - +
----------------------------------------------------------
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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
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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