Contacts of the helix formed by residues 39 - 74 (chain A) in PDB entry 6TOS
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 TYR 39 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
35A LEU* 3.0 29.7 + - + +
37A ARG 3.5 1.2 - - - -
38A ASP* 1.3 82.4 - - + +
40A LEU* 1.4 88.0 + - + +
41A TYR 3.5 1.3 - - - -
42A PRO* 3.4 4.4 - - - +
43A LYS* 3.1 69.0 + - + +
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Residues in contact with LEU 40 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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32A LEU 5.2 1.1 - - - +
35A LEU* 2.9 39.5 + - + +
36A TRP* 3.5 37.2 - - + +
39A TYR* 1.4 94.1 - - + +
41A TYR* 1.4 57.6 + - - +
43A LYS* 3.4 4.5 + - - +
44A GLN* 3.0 31.1 + - - +
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Residues in contact with TYR 41 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
36A TRP* 2.8 54.2 + + + +
37A ARG 4.9 0.2 - - - -
40A LEU* 1.4 71.1 - - - +
42A PRO* 1.4 65.1 - - + +
43A LYS 3.2 0.5 + - - -
44A GLN* 3.2 3.8 + - - +
45A TYR* 2.9 64.5 + + + +
410A SOG 3.8 25.9 - - + +
416A SOG 3.4 61.4 + - + +
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Residues in contact with PRO 42 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
37A ARG 3.4 21.1 - - - +
38A ASP 3.7 20.2 - - - +
39A TYR* 3.4 16.2 - - - +
41A TYR* 1.4 96.1 - - + +
43A LYS* 1.3 54.1 + - + -
45A TYR* 3.7 8.4 - - + +
46A ALA* 3.1 27.9 + - - +
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Residues in contact with LYS 43 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
39A TYR* 3.1 59.5 + - + +
40A LEU* 3.8 5.2 - - - +
41A TYR 3.2 0.2 - - - -
42A PRO* 1.3 74.0 - - + +
44A GLN* 1.3 60.7 + - - +
46A ALA* 3.3 6.5 + - - +
47A TRP* 2.9 28.5 + - - +
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Residues in contact with GLN 44 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
36A TRP* 3.7 28.1 - - - -
40A LEU* 3.0 16.1 + - - +
41A TYR* 3.7 4.3 - - - +
43A LYS* 1.3 71.6 - - - +
45A TYR* 1.3 60.5 + - - +
47A TRP* 3.2 7.5 + - + +
48A VAL* 2.9 43.2 + - + +
410A SOG 3.5 25.1 - - + +
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Residues in contact with TYR 45 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
41A TYR* 2.9 49.6 + + + +
42A PRO* 3.7 10.8 - - + +
44A GLN* 1.3 75.2 - - - +
46A ALA* 1.3 60.5 + - + +
48A VAL* 3.6 1.4 + - - +
49A LEU* 3.0 46.0 + - + +
107A ASP 5.0 5.9 + - - -
334A GLU* 5.0 11.2 + - - -
337A TYR* 4.5 2.9 - - - +
338A ALA* 3.7 31.7 + - + +
341A THR* 4.3 9.4 + - - +
410A SOG 3.6 48.1 - - + +
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Residues in contact with ALA 46 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
42A PRO 3.1 18.1 + - - +
43A LYS* 3.3 6.0 + - - +
45A TYR* 1.3 76.7 - - + +
47A TRP* 1.4 60.8 + - - +
49A LEU* 3.8 7.4 - - + +
50A ILE* 3.0 48.5 + - + +
108A ILE* 6.3 1.1 - - + -
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Residues in contact with TRP 47 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
43A LYS 2.9 14.4 + - - +
44A GLN* 3.2 11.6 + - + +
46A ALA* 1.4 76.2 - - - +
48A VAL* 1.4 72.8 + - + +
50A ILE* 4.0 2.1 - - - +
51A ALA* 2.9 56.5 + - + +
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Residues in contact with VAL 48 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
44A GLN* 2.9 32.3 + - + +
45A TYR 4.0 0.2 - - - +
47A TRP* 1.4 86.0 - - + +
49A LEU* 1.3 57.5 + - - +
51A ALA* 4.0 1.1 - - - +
52A ALA* 2.9 33.8 + - - +
409A SOG 4.0 26.2 - - + -
410A SOG 3.8 34.1 - - + -
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Residues in contact with LEU 49 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
45A TYR* 3.0 38.7 + - + +
46A ALA* 3.8 7.4 - - + +
48A VAL* 1.3 75.6 - - - +
50A ILE* 1.3 57.2 + - + +
52A ALA* 3.8 1.0 - - - +
53A TYR* 3.1 55.5 + - + -
104A LEU* 4.1 7.0 - - + -
107A ASP* 3.9 18.8 - - + +
108A ILE* 3.9 26.9 - - + -
341A THR* 3.4 28.5 - - + -
409A SOG 3.8 13.5 - - + -
410A SOG 5.0 2.0 - - + +
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Residues in contact with ILE 50 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
46A ALA* 3.0 34.9 + - + +
47A TRP* 4.2 2.5 - - - +
49A LEU* 1.3 72.0 - - + +
51A ALA* 1.4 60.3 + - - +
53A TYR* 3.3 1.7 + - - +
54A VAL* 2.9 48.4 + - + +
104A LEU* 4.2 15.0 - - + -
108A ILE* 4.0 32.1 - - + -
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Residues in contact with ALA 51 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
47A TRP* 2.9 54.5 + - + +
48A VAL* 4.0 1.8 - - - +
50A ILE* 1.4 72.8 - - - +
52A ALA* 1.4 57.6 + - - +
54A VAL* 4.1 4.6 - - - +
55A ALA* 2.9 33.1 + - - +
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Residues in contact with ALA 52 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
48A VAL 2.9 19.9 + - - +
49A LEU 3.8 3.6 - - - +
51A ALA* 1.4 75.2 - - - +
53A TYR* 1.3 60.0 + - - +
55A ALA* 4.0 3.9 - - - +
56A VAL* 3.3 19.4 + - - +
345A TRP* 2.8 35.6 + - + +
409A SOG 3.7 30.1 - - + -
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Residues in contact with TYR 53 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
49A LEU* 3.1 48.0 + - + +
50A ILE 3.8 3.4 - - - +
52A ALA* 1.3 72.6 - - - +
54A VAL* 1.4 61.1 + - - +
56A VAL* 3.7 1.5 + - - -
57A PHE* 3.0 29.7 + - - +
100A LEU* 3.6 46.5 - - + +
103A SER* 2.8 15.2 + - - -
104A LEU* 3.8 34.8 - - + -
107A ASP* 2.6 25.6 + - - -
341A THR 4.8 0.4 - - - -
344A HIS* 3.6 9.7 - - - +
345A TRP* 3.9 29.6 + + + -
348A TYR* 3.8 18.2 - + - -
409A SOG 4.6 0.2 - - + -
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Residues in contact with VAL 54 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
50A ILE* 2.9 34.9 + - + +
51A ALA* 4.1 3.8 - - - +
53A TYR* 1.4 73.2 - - - +
55A ALA* 1.4 64.1 + - - +
57A PHE* 3.3 9.2 + - + +
58A VAL* 3.0 37.1 + - + +
104A LEU* 5.0 9.9 - - + -
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Residues in contact with ALA 55 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
51A ALA 2.9 20.7 + - - +
52A ALA* 4.0 4.9 - - - +
54A VAL* 1.4 75.2 - - - +
56A VAL* 1.3 59.1 + - + +
58A VAL* 4.1 3.6 - - - +
59A VAL* 3.1 39.6 + - + +
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Residues in contact with VAL 56 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
52A ALA 3.3 17.8 + - - +
53A TYR 4.0 1.8 - - - +
54A VAL 3.3 0.4 - - - -
55A ALA* 1.3 79.4 - - + +
57A PHE* 1.3 58.9 + - - +
59A VAL* 4.8 0.2 - - - -
60A ALA* 3.0 34.5 + - + +
100A LEU* 3.9 6.1 - - + -
345A TRP* 3.6 28.7 - - + +
348A TYR* 3.3 44.9 - - + +
349A ALA* 3.8 12.6 - - + +
352A ALA* 3.9 12.5 - - + +
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Residues in contact with PHE 57 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
53A TYR 3.0 19.1 + - - +
54A VAL* 3.5 9.6 - - + +
56A VAL* 1.3 76.4 - - - +
58A VAL* 1.4 68.8 + - + +
61A LEU* 3.0 61.0 + - + +
96A THR* 3.4 33.7 - - + +
97A ALA* 4.3 6.1 - - + -
100A LEU* 3.7 23.6 - - + -
101A PRO* 4.1 17.0 - - + -
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Residues in contact with VAL 58 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
54A VAL* 3.0 31.1 + - + +
55A ALA* 4.2 4.5 - - - +
57A PHE* 1.4 84.7 - - + +
59A VAL* 1.4 62.9 + - + +
61A LEU* 3.3 4.8 + - - +
62A VAL* 3.0 47.1 + - + +
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Residues in contact with VAL 59 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
55A ALA* 3.1 23.6 + - + +
58A VAL* 1.4 77.0 - - + +
60A ALA* 1.3 57.2 + - - +
62A VAL* 5.0 2.7 - - - -
63A GLY* 2.9 29.5 + - - -
352A ALA* 3.9 19.1 - - + +
355A PRO* 5.2 0.5 - - - +
356A ILE* 3.8 31.0 - - + -
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Residues in contact with ALA 60 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
56A VAL* 3.0 22.2 + - + +
59A VAL* 1.3 74.1 - - - +
61A LEU* 1.4 64.3 + - - +
64A ASN* 2.7 36.4 + - - +
93A VAL* 4.7 1.0 - - - +
96A THR* 3.7 27.1 - - + +
348A TYR 4.8 1.3 - - - +
351A SER* 3.8 19.7 - - - -
352A ALA* 3.8 10.7 - - - +
355A PRO* 5.7 0.2 - - - -
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Residues in contact with LEU 61 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
57A PHE* 3.0 54.5 + - + +
58A VAL* 3.3 4.2 + - - +
60A ALA* 1.4 74.2 - - - +
62A VAL* 1.4 60.8 + - + +
64A ASN* 4.2 0.3 - - - +
65A THR* 2.7 34.5 + - - +
93A VAL* 4.4 20.8 - - + +
96A THR* 3.9 21.8 - - + -
97A ALA* 4.4 18.2 - - + -
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Residues in contact with VAL 62 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
58A VAL* 3.0 29.6 + - + +
59A VAL* 4.3 2.7 - - - +
61A LEU* 1.4 76.5 - - + +
63A GLY* 1.3 57.4 + - - +
65A THR* 3.2 7.8 + - - -
66A LEU* 3.0 50.7 + - + +
373A PHE* 5.3 7.6 - - + -
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Residues in contact with GLY 63 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
59A VAL* 2.9 22.7 + - - -
62A VAL* 1.3 74.5 - - - +
64A ASN* 1.3 53.9 + - - +
66A LEU* 3.2 14.0 + - - +
67A VAL* 3.1 28.8 + - - +
355A PRO* 3.5 20.7 - - - +
369A PHE* 4.5 0.7 - - - -
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Residues in contact with ASN 64 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
60A ALA* 2.7 31.6 + - - +
63A GLY* 1.3 71.8 - - - +
65A THR* 1.3 65.0 + - - +
67A VAL* 3.4 3.8 + - - +
68A CYS* 3.3 26.3 + - - -
89A SER* 2.9 38.2 + - - -
92A ASP* 4.2 8.2 - - - +
93A VAL* 3.6 22.3 - - + +
351A SER* 2.8 31.6 + - - +
354A ASN* 5.0 2.6 - - - +
355A PRO* 3.6 13.6 - - - +
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Residues in contact with THR 65 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
61A LEU* 2.7 25.6 + - - +
62A VAL* 3.2 6.9 + - - -
64A ASN* 1.3 73.5 - - - +
66A LEU* 1.4 58.0 + - + +
68A CYS* 3.2 11.8 + - + +
69A LEU* 3.0 43.5 + - + +
93A VAL* 5.0 4.5 - - - +
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Residues in contact with LEU 66 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
62A VAL* 3.0 36.7 + - + +
63A GLY* 3.2 12.3 + - - +
65A THR* 1.4 75.4 - - + +
67A VAL* 1.3 55.2 + - - +
69A LEU* 3.8 13.5 - - + +
70A ALA* 2.8 35.9 + - - +
369A PHE* 3.7 25.0 - - + -
372A ALA* 3.5 28.9 - - + -
373A PHE* 4.4 22.4 - - + -
376A TRP* 4.0 16.6 - - + -
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Residues in contact with VAL 67 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
63A GLY 3.1 15.0 + - - +
64A ASN 3.6 7.6 - - - +
65A THR 3.3 0.4 - - - -
66A LEU* 1.3 74.6 - - - +
68A CYS* 1.4 60.8 + - - +
70A ALA* 3.3 3.5 + - - +
71A VAL* 3.2 25.5 + - - +
85A LEU 4.2 12.6 - - - +
86A VAL* 4.5 6.3 - - + +
89A SER* 3.4 19.7 - - - +
355A PRO* 3.8 16.8 - - + -
358A TYR* 3.8 32.8 - - + -
365A PHE* 4.0 21.1 - - + -
369A PHE* 4.0 8.7 - - + -
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Residues in contact with CYS 68 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
64A ASN 3.3 13.7 + - - -
65A THR* 3.2 12.0 + - + +
67A VAL* 1.4 76.5 - - - +
69A LEU* 1.4 57.0 + - + +
71A VAL* 4.0 1.9 - - - +
72A TRP* 3.1 28.4 + - - +
86A VAL* 3.7 39.6 - - + +
89A SER* 4.4 6.5 - - - -
90A LEU* 4.7 15.3 - - - -
93A VAL* 6.3 1.3 - - - -
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Residues in contact with LEU 69 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
65A THR* 3.0 38.0 + - + +
66A LEU* 3.8 14.4 - - + +
67A VAL 3.3 0.4 - - - -
68A CYS* 1.4 74.8 - - + +
70A ALA* 1.4 54.2 + - - +
72A TRP* 3.7 20.5 - - + +
73A ARG* 2.8 71.6 + - - +
376A TRP* 4.4 19.7 - - + -
----------------------------------------------------------
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Residues in contact with ALA 70 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
66A LEU 2.8 20.7 + - - +
67A VAL 3.6 5.4 - - - +
69A LEU* 1.4 72.9 - - - +
71A VAL* 1.3 58.5 + - - +
74A ASN* 3.1 32.9 + - - +
77A MET* 3.5 4.7 - - + +
365A PHE* 3.9 22.4 - - + -
368A GLN* 3.6 34.3 - - + +
369A PHE* 4.7 2.9 - - + -
----------------------------------------------------------
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Residues in contact with VAL 71 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
67A VAL 3.2 14.6 + - - +
68A CYS 4.2 1.3 - - - +
70A ALA* 1.3 73.3 - - - +
72A TRP* 1.4 62.4 + - - +
74A ASN 3.0 20.6 - - - +
77A MET* 4.0 16.8 - - + +
78A ARG* 3.2 15.0 + - + +
82A ASN* 4.0 13.7 - - + +
83A TYR* 4.0 30.1 - - + -
86A VAL* 3.7 30.1 - - + -
365A PHE* 4.0 23.3 - - + -
----------------------------------------------------------
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Residues in contact with TRP 72 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
68A CYS 3.1 19.5 + - - +
69A LEU* 3.4 21.7 + - + +
71A VAL* 1.4 76.2 - - - +
73A ARG* 1.4 116.3 + - + +
75A HIS* 3.9 3.3 + - - -
78A ARG* 2.8 36.5 + - - +
----------------------------------------------------------
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Residues in contact with ARG 73 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
69A LEU* 2.8 44.7 + - - +
70A ALA* 4.9 0.2 - - - -
72A TRP* 1.4 111.8 - - + +
74A ASN* 1.3 60.1 + - - +
75A HIS* 3.5 12.0 + - - -
368A GLN* 4.0 16.2 - - - +
372A ALA* 6.3 0.4 - - - +
376A TRP* 4.2 22.0 - - - -
----------------------------------------------------------
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Residues in contact with ASN 74 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
70A ALA 3.1 15.9 + - - +
71A VAL 3.0 18.8 - - - +
73A ARG* 1.3 74.9 - - - +
75A HIS* 1.3 61.3 + - - +
76A HIS* 3.0 37.0 + - - +
77A MET* 3.6 31.8 + - - +
78A ARG* 3.8 1.0 - - - +
364A LYS* 5.3 8.9 + - - +
367A GLU* 5.8 2.0 + - - -
368A GLN* 3.1 29.6 - - - +
----------------------------------------------------------
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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