Contacts of the helix formed by residues 72 - 99 (chain A) in PDB entry 1AXI
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 72 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
71A SER* 1.3 73.4 - - - +
73A LEU* 1.3 61.0 + - + +
75A LEU 3.4 1.0 + - - -
76A LEU* 3.0 34.2 + - - +
128A LEU* 4.0 20.9 - - + +
180A VAL* 3.8 26.4 - - + +
183A ARG* 3.0 38.9 + - - +
184A SER* 3.7 15.7 + - - +
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Residues in contact with LEU 73 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
71A SER* 3.3 5.9 + - - +
72A ASN* 1.3 78.4 - - + +
74A GLU* 1.3 58.5 + - - +
76A LEU* 3.5 6.1 + - + +
77A ARG* 2.9 31.5 + - - +
125A MET* 3.9 45.1 - - + +
128A LEU* 4.0 28.9 - - + +
129A THR* 4.4 12.8 - - - -
139A PHE* 3.9 18.3 - - + -
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Residues in contact with GLU 74 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
69A GLN 4.7 0.7 - - - +
70A LYS* 3.5 31.8 + - + +
71A SER* 2.8 42.0 + - - +
73A LEU* 1.3 76.0 - - - +
75A LEU* 1.3 57.8 - - - +
77A ARG* 3.1 3.2 + - - +
78A ILE* 2.9 39.4 + - + +
138A ILE* 4.9 11.2 - - + +
139A PHE* 4.1 22.3 - - + -
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Residues in contact with LEU 75 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
61A PRO* 4.5 5.8 - - + -
67A THR* 3.8 31.2 - - + +
70A LYS* 3.6 27.1 - - + -
71A SER 3.1 12.4 + - - +
72A ASN 3.9 4.0 - - - +
74A GLU* 1.3 76.8 - - - +
76A LEU* 1.3 62.9 + - - +
78A ILE* 3.6 7.7 + - + +
79A SER* 3.0 27.2 + - - -
176A TYR* 4.1 30.2 - - + +
179A ILE* 4.2 16.4 - - + -
180A VAL* 3.9 13.0 - - + -
183A ARG* 3.7 26.5 - - - +
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Residues in contact with LEU 76 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
10A PHE* 5.1 2.0 - - + -
72A ASN 3.0 22.5 + - - +
73A LEU* 3.9 6.3 - - + +
75A LEU* 1.3 76.6 - - - +
77A ARG* 1.3 58.0 + - - +
79A SER* 3.3 5.9 + - - -
80A LEU* 2.8 29.8 + - - +
121A ILE* 3.5 10.9 - - + +
124A LEU* 4.1 21.3 - - + +
125A MET* 3.6 43.3 - - + +
128A LEU* 4.2 18.6 - - + -
177A LEU* 3.8 24.7 - - + -
180A VAL* 4.1 20.2 - - + -
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Residues in contact with ARG 77 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
73A LEU 2.9 18.6 + - - +
74A GLU 3.1 4.2 + - - +
76A LEU* 1.3 75.4 - - - +
78A ILE* 1.3 64.5 + - - +
80A LEU* 3.3 21.8 + - - +
81A LEU* 3.1 39.7 + - - +
84A GLN* 5.4 1.4 + - - -
125A MET* 3.7 19.8 - - + +
138A ILE* 2.8 33.4 + - + +
139A PHE* 3.7 40.1 + - + +
141A GLN 2.9 28.1 + - - -
142A THR* 4.9 0.2 - - - +
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Residues in contact with ILE 78 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
58A ILE* 3.7 18.8 - - + -
59A PRO* 3.5 22.7 - - + +
60A THR* 4.1 2.5 - - + -
61A PRO* 4.3 14.6 - - + -
70A LYS* 4.6 14.1 - - - +
74A GLU* 2.9 26.0 + - + +
75A LEU* 4.1 10.5 - - + +
77A ARG* 1.3 74.6 - - - +
79A SER* 1.3 62.4 + - - +
81A LEU* 3.2 6.1 + - - +
82A LEU* 3.0 29.3 + - + +
138A ILE* 3.4 27.4 - - + -
176A TYR* 3.8 21.3 - - + -
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Residues in contact with SER 79 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
75A LEU 3.0 16.8 + - - -
76A LEU 3.5 7.6 - - - -
77A ARG 3.3 0.2 - - - -
78A ILE* 1.3 74.1 - - - +
80A LEU* 1.3 63.2 + - - +
82A LEU* 3.4 3.5 + - - +
83A ILE* 3.1 29.8 + - - +
121A ILE* 4.0 7.6 - - - -
173A VAL* 3.8 20.8 - - - +
176A TYR* 3.5 21.7 - - - +
177A LEU* 3.8 25.7 - - - +
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Residues in contact with LEU 80 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
76A LEU 2.8 17.4 + - - +
77A ARG* 3.6 28.7 - - - +
78A ILE 3.2 0.2 - - - -
79A SER* 1.3 77.5 - - - +
81A LEU* 1.3 56.2 + - - +
83A ILE* 3.4 1.7 + - - +
84A GLN* 3.0 48.4 + - - +
118A GLU* 3.8 41.3 - - + +
121A ILE* 4.0 15.9 - - + -
122A GLN* 3.9 22.4 - - + +
125A MET* 4.1 14.4 - - - -
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Residues in contact with LEU 81 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
58A ILE* 3.7 21.3 - - + -
77A ARG* 3.1 30.9 + - - +
78A ILE 3.6 6.3 - - - +
80A LEU* 1.3 72.1 - - + +
82A LEU* 1.3 64.0 + - - +
84A GLN* 3.8 16.2 - - - +
85A SER* 2.8 30.6 + - - -
138A ILE* 3.7 39.9 - - + +
141A GLN* 4.2 16.4 - - + -
142A THR* 3.5 9.4 - - - +
143A TYR* 3.5 28.1 - - - +
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Residues in contact with LEU 82 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
55A SER* 4.1 16.8 - - - -
58A ILE* 4.1 9.6 - - + -
60A THR* 4.0 17.3 - - + -
78A ILE* 3.0 34.2 + - + +
79A SER 3.8 6.3 - - - +
80A LEU 3.3 0.2 - - - -
81A LEU* 1.3 76.2 - - - +
83A ILE* 1.3 61.2 + - - +
85A SER* 3.3 12.3 + - - -
86A TRP* 3.3 22.4 - - - -
168A ARG* 4.4 0.2 - - - +
169A ASP* 4.0 30.7 - - + +
170A MET* 5.1 0.9 - - - -
172A TYR* 3.7 30.1 - - + -
173A VAL* 3.8 17.9 - - + -
176A TYR* 4.4 2.7 - - + -
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Residues in contact with ILE 83 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
20A LEU* 4.7 0.2 - - + -
79A SER 3.1 18.2 + - - +
80A LEU* 3.7 4.3 - - - +
82A LEU* 1.3 73.7 - - - +
84A GLN* 1.3 63.8 + - - +
86A TRP* 3.1 17.3 + - - +
87A LEU* 3.7 9.8 + - + +
114A LEU* 3.4 51.7 - - + +
117A LEU* 3.8 21.3 - - + -
118A GLU* 4.0 16.6 - - + +
121A ILE* 3.9 18.4 - - + -
170A MET* 4.2 12.3 - - + -
173A VAL* 3.9 18.8 - - + -
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Residues in contact with GLN 84 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
77A ARG* 5.4 0.9 + - - -
80A LEU* 3.0 38.1 + - - +
81A LEU* 3.8 22.9 - - - +
83A ILE* 1.3 76.8 - - - +
85A SER* 1.4 60.6 + - - +
86A TRP 3.2 1.0 + - - -
87A LEU* 3.3 28.4 + - + +
88A GLU 4.8 0.3 + - - -
118A GLU* 2.5 41.1 + - + +
122A GLN* 4.1 7.1 + - - -
143A TYR* 3.9 34.8 - - + -
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Residues in contact with SER 85 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
54A PHE* 3.4 19.0 - - - -
55A SER* 5.0 4.3 - - - -
58A ILE* 3.5 10.5 - - - +
81A LEU 2.8 21.0 + - - -
82A LEU* 3.5 10.5 - - - -
83A ILE 3.2 0.4 - - - -
84A GLN* 1.4 75.2 - - - +
86A TRP* 1.3 61.4 + - - +
87A LEU 3.6 0.2 - - - -
89A PRO* 3.2 23.8 - - - +
143A TYR* 3.8 3.5 - - - +
144A SER* 3.0 40.3 + - - +
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Residues in contact with TRP 86 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
54A PHE* 3.7 26.4 - + - -
82A LEU 3.3 21.1 - - - +
83A ILE 3.1 10.5 + - - +
85A SER* 1.3 78.8 - - - +
87A LEU* 1.3 63.5 + - - +
88A GLU 3.4 2.0 - - - -
89A PRO* 3.7 19.5 - - + -
90A VAL* 3.1 37.3 + - + +
93A LEU* 4.1 16.4 - - + -
114A LEU* 4.0 21.5 - - + -
162A LEU* 3.4 34.5 - - + -
165A CYS* 3.6 7.9 - - + -
166A PHE* 3.3 44.2 - + + -
169A ASP* 2.9 27.6 + - + +
170A MET* 3.9 12.8 - - + +
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Residues in contact with LEU 87 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
83A ILE* 3.9 6.3 - - + +
84A GLN* 3.3 33.3 + - + +
86A TRP* 1.3 77.0 - - - +
88A GLU* 1.3 57.1 + - - +
90A VAL* 3.7 1.5 - - - +
91A GLN* 3.4 18.2 + - - -
111A TYR* 3.4 33.6 - - + +
114A LEU* 3.6 32.1 - - + +
115A LYS* 4.1 22.2 - - - +
118A GLU* 3.7 24.9 - - + +
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Residues in contact with GLU 88 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
84A GLN 4.8 0.4 + - - -
87A LEU* 1.3 78.6 - - - +
89A PRO* 1.3 72.8 - - + +
90A VAL 3.2 1.8 + - - -
91A GLN* 3.2 24.0 + - - +
92A PHE* 4.3 8.7 - - + -
143A TYR* 6.5 0.9 - - + -
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Residues in contact with PRO 89 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
54A PHE* 3.9 9.4 - - + -
85A SER 3.2 26.2 - - - +
86A TRP* 3.7 25.4 - - + +
88A GLU* 1.3 93.5 - - + +
90A VAL* 1.3 57.5 + - - +
92A PHE* 2.9 41.0 + - + +
93A LEU* 4.2 0.7 + - - +
144A SER 5.6 0.7 - - - +
146A PHE* 3.7 35.9 - - + +
162A LEU* 4.9 2.4 - - + +
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Residues in contact with VAL 90 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
86A TRP* 3.1 33.5 + - + +
87A LEU 3.7 12.1 - - - +
89A PRO* 1.3 74.1 - - - +
91A GLN* 1.3 66.0 + - - +
93A LEU* 3.0 25.7 + - + +
97A PHE* 4.0 15.7 - - + -
107A ASP* 3.7 11.8 - - + +
110A VAL* 3.6 31.9 - - + -
111A TYR* 4.2 17.5 - - + +
114A LEU* 4.2 13.0 - - + -
166A PHE* 5.1 4.0 - - + -
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Residues in contact with GLN 91 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
87A LEU 3.4 24.2 + - - -
88A GLU* 3.2 15.9 + - - +
89A PRO 3.1 1.8 - - - -
90A VAL* 1.3 84.5 - - - +
92A PHE* 1.3 60.3 + - + +
93A LEU 3.2 4.0 + - - -
94A ARG* 3.0 44.5 + - - +
107A ASP* 2.9 24.4 - - - +
108A SER* 5.4 1.4 + - - -
111A TYR* 4.0 25.3 - - - +
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Residues in contact with PHE 92 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
88A GLU* 4.3 7.6 - - + -
89A PRO* 2.9 35.9 + - + +
91A GLN* 1.3 76.8 - - + +
93A LEU* 1.3 59.5 + - - +
94A ARG* 3.3 2.5 - - - -
95A SER 5.3 0.9 + - - -
96A VAL* 5.1 0.2 - - - +
146A PHE* 3.7 25.4 - + + -
147A ASP 5.7 1.8 - - - -
148A THR 4.7 12.1 - - - -
159A ASN* 3.8 16.6 - - - +
162A LEU* 3.8 18.7 - - + +
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Residues in contact with LEU 93 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
86A TRP* 4.1 26.2 - - + -
89A PRO 5.0 0.9 - - - +
90A VAL* 3.0 13.5 + - + +
92A PHE* 1.3 80.1 - - - +
94A ARG* 1.3 65.2 + - - +
95A SER 3.4 2.0 - - - -
96A VAL* 3.2 27.9 + - + -
97A PHE* 2.9 59.7 + - + -
159A ASN* 4.2 2.2 - - - +
162A LEU* 4.1 24.5 - - + +
163A LEU* 3.7 27.4 - - + -
166A PHE* 4.5 10.5 - - + -
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Residues in contact with ARG 94 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
90A VAL 4.0 0.6 + - - -
91A GLN* 3.0 47.2 + - - +
92A PHE 3.3 1.6 - - - -
93A LEU* 1.3 77.9 - - - +
95A SER* 1.3 60.2 + - - +
97A PHE* 3.9 1.9 - - - +
98A ALA* 3.0 31.5 + - + +
106A SER* 5.8 0.2 - - - -
107A ASP* 3.4 35.4 + - - +
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Residues in contact with SER 95 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
92A PHE 5.3 0.8 + - - -
93A LEU 3.4 0.4 - - - -
94A ARG* 1.3 77.9 - - - +
96A VAL* 1.3 71.8 + - - +
98A ALA* 3.3 5.5 + - - +
99A ASN* 3.2 23.6 + - - +
159A ASN* 4.1 13.5 + - - -
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Residues in contact with VAL 96 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
27A THR* 4.0 17.0 - - + -
31A PHE* 4.4 17.0 - - + -
92A PHE 5.6 0.2 + - - -
93A LEU* 3.2 27.6 + - + +
95A SER* 1.3 84.7 + - - +
97A PHE* 1.3 64.1 + - + +
99A ASN* 3.4 4.6 + - - +
100A SER* 3.3 17.3 + - - -
159A ASN* 3.4 39.5 - - + +
163A LEU* 3.9 26.7 - - + -
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Residues in contact with PHE 97 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
23A LEU* 5.1 4.0 - - + -
27A THR* 3.7 31.9 - - + -
90A VAL* 4.0 18.2 - - + -
93A LEU* 2.9 50.5 + - + +
94A ARG 4.1 1.8 - - - +
96A VAL* 1.3 74.7 - - + +
98A ALA* 1.3 61.2 + - - +
100A SER* 3.4 17.7 - - - +
105A ALA* 2.7 46.9 - - + +
106A SER* 3.7 12.1 - - - -
107A ASP* 3.9 16.4 - - - -
110A VAL* 4.1 13.2 - - + -
163A LEU* 4.7 2.9 - - + -
166A PHE* 4.1 26.9 - + - -
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Residues in contact with ALA 98 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
94A ARG* 3.0 20.2 + - + +
95A SER* 3.3 6.3 + - - +
96A VAL 3.3 0.2 - - - -
97A PHE* 1.3 77.7 - - - +
99A ASN* 1.3 60.4 + - - +
100A SER 3.5 4.7 + - - +
105A ALA 4.7 0.9 - - - -
106A SER* 5.2 3.1 - - - +
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Residues in contact with ASN 99 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
30A GLU* 5.5 0.3 - - - -
35A TYR* 5.0 13.2 + - + +
95A SER 3.2 16.9 + - - +
96A VAL* 3.9 3.6 - - - +
98A ALA* 1.3 74.9 - - - +
100A SER* 1.3 61.5 + - - +
101A LEU* 3.9 8.7 + - - +
----------------------------------------------------------
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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