Contacts of the helix formed by residues 148 - 180 (chain B) in PDB entry 3N1Z
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 ALA 148 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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36B HIS* 3.2 9.7 - - - -
72B TRP* 3.8 34.1 - - + +
73B ASN* 3.9 13.9 - - - +
146B ALA* 3.4 4.6 + - - +
147B PRO* 1.3 81.5 - - - +
149B SER* 1.3 61.3 + - - +
150B THR* 4.3 4.3 - - - +
151B ILE* 2.8 31.9 + - + +
152B THR* 2.9 12.0 + - - -
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Residues in contact with SER 149 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
105A TYR* 3.0 28.8 + - - -
32B SER 2.7 24.4 + - - -
34B ASN 3.5 4.9 + - - -
35B LEU* 3.0 40.4 + - - +
36B HIS* 3.1 15.7 - - - +
73B ASN* 4.3 3.7 + - - -
148B ALA* 1.3 71.8 - - - +
150B THR* 1.3 56.2 + - - +
152B THR* 4.0 0.2 - - - -
153B ASN* 2.9 27.5 + - - -
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Residues in contact with THR 150 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
28B TYR* 3.7 21.8 + - + +
32B SER* 3.1 28.5 - - - +
33B THR* 4.0 15.9 - - + -
34B ASN 5.3 0.4 - - - +
73B ASN* 4.3 6.8 + - - +
75B PHE* 2.9 42.3 + - - +
76B ARG* 4.4 1.8 - - - +
148B ALA* 3.0 5.3 + - - +
149B SER* 1.3 75.4 + - - +
151B ILE* 1.3 68.2 + - - +
153B ASN* 3.7 6.0 + - - +
154B CYS* 3.5 23.2 + - - -
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Residues in contact with ILE 151 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
72B TRP* 4.2 12.8 - - + -
75B PHE* 3.7 28.3 - - + -
142B ILE* 5.1 5.6 - - + -
146B ALA* 3.5 21.3 - - + -
147B PRO* 4.5 6.3 - - + -
148B ALA* 2.8 21.5 + - + +
150B THR* 1.3 75.2 + - - +
152B THR* 1.3 66.9 + - - +
154B CYS* 3.1 15.3 + - - +
155B ALA* 3.2 10.4 + - - +
215B TRP* 4.1 23.3 - - + -
219B PHE* 6.4 0.2 - - + -
267B TRP* 4.6 17.7 - - + -
271B LEU* 3.6 26.5 - - + -
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Residues in contact with THR 152 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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105A TYR* 3.6 11.0 - - + +
36B HIS* 2.5 36.2 + - + +
143B HIS* 3.0 55.4 + - + +
146B ALA* 3.9 8.3 - - - +
148B ALA 2.9 6.5 + - - -
149B SER 3.6 6.7 - - - -
151B ILE* 1.3 77.7 - - - +
153B ASN* 1.3 57.1 + - - +
155B ALA* 3.0 10.7 + - - +
156B THR* 2.8 26.3 + - - -
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Residues in contact with ASN 153 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
105A TYR* 2.6 41.4 + - - -
135A ASN* 3.6 14.9 + - - +
139A GLN* 3.8 12.9 - - - +
28B TYR* 5.9 2.5 - - + +
31B VAL 4.9 0.5 - - - +
32B SER* 3.6 28.0 + - - -
81B LEU 5.5 2.6 - - - +
149B SER 2.9 16.7 + - - +
150B THR* 4.0 6.7 - - - +
151B ILE 3.2 0.6 - - - -
152B THR* 1.3 74.2 - - - +
154B CYS* 1.3 67.2 + - - +
156B THR* 2.9 23.0 + - - -
157B TYR* 3.2 25.3 + - + -
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Residues in contact with CYS 154 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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75B PHE* 3.7 12.8 - - - -
77B ASP* 3.5 41.1 - - - -
150B THR 3.5 11.1 + - - -
151B ILE 3.1 9.2 + - - +
153B ASN* 1.3 77.7 - - - +
155B ALA* 1.3 62.4 + - - +
157B TYR* 3.6 7.9 + - - +
158B GLU* 3.1 24.9 + - - +
267B TRP* 3.4 43.1 + - + +
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Residues in contact with ALA 155 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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139B SER* 3.7 8.5 - - - +
142B ILE* 3.9 13.0 - - + -
143B HIS* 3.6 29.6 - - - +
151B ILE 3.2 8.4 + - - +
152B THR 3.0 12.3 + - - +
154B CYS* 1.3 78.8 - - - +
156B THR* 1.3 60.4 + - - +
158B GLU* 3.8 7.0 - - - +
159B THR* 2.9 30.7 + - - -
267B TRP* 4.2 8.2 - - + -
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Residues in contact with THR 156 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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131A MET* 3.3 39.8 - - + +
132A MET* 3.9 15.3 - - - -
135A ASN* 4.0 23.9 + - + +
143B HIS* 2.8 27.6 + - + -
152B THR 2.8 10.4 + - - -
153B ASN* 2.9 15.0 + - - -
155B ALA* 1.3 76.3 - - - +
157B TYR* 1.3 61.9 + - + +
159B THR* 2.9 20.4 + - - -
160B ALA* 3.1 9.4 + - - +
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Residues in contact with TYR 157 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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132A MET* 4.0 17.5 - - + -
135A ASN* 2.6 40.0 + - - -
139A GLN* 2.9 15.2 + - - -
77B ASP* 5.3 0.4 - - - -
81B LEU* 3.7 47.8 - - + -
82B VAL* 3.5 1.5 - - - -
83B TYR* 3.0 22.6 + - + -
86B TYR* 3.6 31.9 + + + -
153B ASN* 3.2 28.6 + - + +
154B CYS* 4.2 5.6 - - - +
156B THR* 1.3 74.3 - - + +
158B GLU* 1.3 57.7 + - - +
160B ALA* 3.3 5.9 + - - +
161B ASP* 2.9 34.9 + - - +
263B ARG* 5.8 0.4 - - - +
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Residues in contact with GLU 158 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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139B SER* 3.3 14.7 - - - -
142B ILE* 5.3 0.6 - - - +
154B CYS 3.1 18.4 + - - +
155B ALA* 3.8 4.3 - - - +
156B THR 3.2 0.2 - - - -
157B TYR* 1.3 77.8 - - - +
159B THR* 1.3 62.3 + - - +
161B ASP* 3.3 2.3 + - - +
162B HIS* 3.0 44.2 + - - +
222B ILE* 4.9 0.5 - - - +
223B ASN* 2.8 42.6 + - - +
227B LYS* 3.5 8.8 - - - +
264B HIS* 3.5 32.7 - - + +
267B TRP* 3.3 16.6 + - - +
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Residues in contact with THR 159 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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128A THR* 3.8 13.9 - - + +
131A MET* 4.0 6.1 - - + -
136B GLN* 3.6 30.6 - - + +
139B SER* 2.5 21.4 + - - -
140B VAL* 3.1 32.4 + - + +
155B ALA 2.9 15.9 + - - -
156B THR 2.9 9.9 + - - -
158B GLU* 1.3 75.4 - - - +
160B ALA* 1.3 64.5 + - - +
162B HIS* 3.1 5.2 + - - +
163B LEU* 3.0 19.6 + - - +
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Residues in contact with ALA 160 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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55A TYR* 3.3 16.7 - - + -
128A THR* 4.7 6.7 - - + -
131A MET* 4.6 0.6 - - - +
132A MET* 4.0 24.7 - - + -
86B TYR* 3.3 25.4 - - + +
156B THR 3.1 10.2 + - - +
157B TYR 3.4 5.8 - - - +
159B THR* 1.3 77.7 - - - +
161B ASP* 1.3 61.8 + - - +
163B LEU* 3.2 8.6 + - - +
164B ARG 2.9 17.7 + - - -
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Residues in contact with ASP 161 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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86B TYR* 2.7 28.5 + - - -
90B GLN* 3.0 15.1 + - - -
157B TYR 2.9 18.0 + - - +
158B GLU* 3.4 8.2 - - - +
159B THR 3.2 0.2 - - - -
160B ALA* 1.3 76.8 - - - +
162B HIS* 1.3 63.9 + - - +
164B ARG* 3.0 10.6 - - - +
165B TRP* 3.0 27.4 + - - +
260B ASP* 3.9 12.5 - - + +
263B ARG* 3.2 20.6 + - - -
264B HIS* 2.6 35.5 + - + +
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Residues in contact with HIS 162 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
132B PHE* 4.1 7.1 - - - +
135B LEU* 3.5 30.4 + - + +
136B GLN* 3.5 21.3 - - + +
139B SER* 3.0 27.7 - - - -
158B GLU* 3.0 38.8 + - + +
159B THR 3.1 6.3 + - - +
161B ASP* 1.3 75.9 - - - +
163B LEU* 1.3 63.9 + - - +
165B TRP* 2.9 24.2 + + - +
166B LEU* 2.9 21.6 + - - +
222B ILE* 5.7 0.2 - - - +
227B LYS* 2.9 35.1 + - + +
264B HIS* 4.3 2.9 - + - -
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Residues in contact with LEU 163 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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13A THR* 5.8 1.6 - - - -
55A TYR* 4.7 6.3 - - + -
125A ASN* 3.7 24.0 - - + +
128A THR* 4.2 22.2 - - + -
129A PHE* 3.3 42.6 - - + -
136B GLN* 3.5 30.6 + - - +
159B THR 3.0 10.5 + - - +
160B ALA* 3.6 8.5 - - - +
162B HIS* 1.3 76.0 - - - +
164B ARG* 1.3 52.5 + - - +
166B LEU* 3.3 15.6 - - + +
167B THR* 2.8 45.2 + - - +
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Residues in contact with ARG 164 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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55A TYR* 3.6 42.8 - - + -
90B GLN* 3.6 13.1 + - - +
93B GLN* 3.6 32.4 + - - +
94B GLU* 2.7 30.8 + - - +
97B VAL* 4.0 12.1 - - - +
160B ALA 2.9 12.5 + - - +
161B ASP* 3.0 12.8 - - - +
163B LEU* 1.3 75.0 - - - +
165B TRP* 1.3 64.9 + - + +
167B THR* 2.9 13.7 + - - +
168B HIS* 3.0 33.1 + - + +
256B ALA* 4.4 11.3 + - - +
257B GLN* 4.8 2.2 - - - +
260B ASP* 2.3 44.2 + - - -
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Residues in contact with TRP 165 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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132B PHE* 3.9 37.2 - + + -
135B LEU* 4.3 10.5 - - + -
161B ASP 3.0 21.3 + - - -
162B HIS* 2.9 25.2 + + - +
164B ARG* 1.3 78.4 - - + +
166B LEU* 1.3 60.6 + - - +
168B HIS* 3.3 12.3 + + - +
169B THR* 2.8 29.3 + - - -
227B LYS* 3.8 22.0 - - - -
230B VAL* 5.3 2.0 - - + -
231B GLU* 4.0 22.0 - - + -
235B LEU* 4.3 8.1 - - + -
257B GLN* 3.6 48.3 + - + +
260B ASP* 3.2 28.6 + - + +
261B ALA* 3.9 13.2 - - + -
264B HIS* 4.2 6.1 - + - -
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Residues in contact with LEU 166 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12A LEU 4.7 0.7 - - - +
13A THR* 3.3 29.6 - - - +
16A THR* 4.3 6.3 - - + -
125A ASN* 4.3 0.7 - - - +
129B ARG* 3.7 40.2 - - + +
132B PHE* 4.2 14.5 - - + -
133B HIS* 4.2 15.0 - - + +
136B GLN* 3.9 9.0 - - - +
162B HIS 2.9 12.3 + - - +
163B LEU* 3.3 30.3 - - + +
165B TRP* 1.3 77.6 - - - +
167B THR* 1.3 56.3 + - - +
169B THR* 3.4 1.5 + - - -
170B ALA* 2.9 29.0 + - + +
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Residues in contact with THR 167 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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9A TRP* 3.5 29.3 - - + -
13A THR* 4.7 9.0 - - + +
54A THR* 4.8 1.7 - - - -
55A TYR* 3.9 14.1 + - + +
56A PRO* 4.1 22.2 - - + -
94B GLU* 6.0 0.2 - - - +
163B LEU* 2.8 31.8 + - - +
164B ARG* 2.9 11.8 + - - -
166B LEU* 1.3 75.3 - - - +
168B HIS* 1.3 66.8 + - - +
170B ALA* 3.4 5.8 + - - +
171B TYR* 2.9 22.5 + - + +
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Residues in contact with HIS 168 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
56A PRO* 6.2 0.2 - - - +
94B GLU* 3.2 35.7 + - - -
97B VAL* 3.9 20.5 - - + +
98B GLN* 4.5 1.4 + - - -
101B PHE* 4.2 8.9 - - + -
125B TYR* 4.3 2.2 - - - -
164B ARG* 3.0 45.2 + - + +
165B TRP* 3.3 5.8 + - - +
167B THR* 1.3 74.8 - - - +
169B THR* 1.3 56.0 + - - +
171B TYR* 3.0 8.7 + - - +
172B ARG* 2.7 36.4 + - - +
253B LEU* 3.9 23.1 - - + +
256B ALA* 6.0 0.2 - - - +
257B GLN* 3.0 34.5 - - + +
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Residues in contact with THR 169 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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125B TYR* 3.5 27.1 + - + +
126B THR* 3.7 30.7 - - - +
128B ALA* 4.5 1.6 - - + -
129B ARG* 4.0 15.9 - - + +
132B PHE* 3.5 18.7 - - - -
165B TRP 2.8 16.1 + - - -
166B LEU* 3.6 7.2 - - - -
168B HIS* 1.3 79.3 - - - +
170B ALA* 1.3 54.9 + - - +
172B ARG* 3.7 0.9 - - - +
173B THR* 2.6 41.5 + - - +
257B GLN* 4.9 1.6 + - - -
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Residues in contact with ALA 170 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
9A TRP* 4.1 3.0 - - + +
12A LEU* 3.9 21.0 - - + +
13A THR* 3.5 43.7 - - + +
129B ARG* 5.6 4.7 - - - +
166B LEU* 2.9 20.4 + - + +
167B THR 3.7 2.2 - - - +
169B THR* 1.3 75.5 - - - +
171B TYR* 1.3 65.9 + - - +
173B THR* 3.2 13.3 + - - -
174B ARG* 3.3 9.9 + - - +
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Residues in contact with TYR 171 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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2A SER 4.3 1.9 + - - -
3A MET* 3.3 30.1 - - + -
4A LEU* 2.9 44.5 + - + +
9A TRP* 3.4 45.0 - + + -
98B GLN* 5.1 4.3 - - - -
101B PHE* 3.3 38.5 - + + +
167B THR* 2.9 14.8 + - + +
168B HIS* 3.2 11.0 - - - +
170B ALA* 1.3 75.5 - - - +
172B ARG* 1.3 67.7 + - - +
174B ARG* 3.0 16.5 + - - +
175B GLU* 3.1 32.7 + - + -
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Residues in contact with ARG 172 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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101B PHE* 3.9 24.7 - - + -
109B HIS* 4.9 3.8 + - - -
110B ASP* 2.8 42.5 + - - -
113B LEU* 5.2 0.4 - - - +
121B LEU* 5.5 0.4 - - - +
125B TYR* 3.6 29.8 - - + +
168B HIS 2.7 20.2 + - - +
169B THR 4.0 0.2 - - - +
171B TYR* 1.3 74.5 - - - +
173B THR* 1.3 58.4 + - - +
175B GLU* 2.6 43.5 + - - +
176B LEU* 3.0 51.7 + - - +
247B ASP* 5.2 6.3 + - - -
249B LEU* 3.6 33.6 - - - +
250B LEU* 6.4 0.2 - - - +
253B LEU* 4.2 4.5 - - + -
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Residues in contact with THR 173 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
12A LEU* 4.0 7.9 - - + -
126B THR* 3.4 28.7 + - + +
129B ARG* 4.6 6.1 + - - +
169B THR* 2.6 29.8 + - - +
170B ALA* 3.4 8.4 - - - -
171B TYR 3.0 0.6 + - - -
172B ARG* 1.3 76.3 - - - +
174B ARG* 1.3 58.5 + - - +
176B LEU* 3.4 3.4 + - - +
177B ALA* 2.9 26.0 + - - +
185B PHE* 3.9 3.3 - - + +
186B GLY* 3.4 37.5 - - - +
189B GLU* 3.9 9.9 - - - +
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Residues in contact with ARG 174 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4A LEU* 3.9 12.3 - - + -
8A ASP* 2.3 45.6 + - + +
9A TRP* 3.6 23.6 - - + +
12A LEU* 3.6 24.8 - - + +
170B ALA 3.3 4.0 + - - +
171B TYR 3.0 9.2 + - - +
173B THR* 1.3 77.5 - - - +
175B GLU* 1.3 65.5 + - - +
177B ALA* 3.1 14.0 + - - +
178B ASN* 2.9 44.7 + - - +
185B PHE 5.0 5.5 + - - -
186B GLY* 5.2 1.6 - - - -
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Residues in contact with GLU 175 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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2A SER 4.3 5.4 - - - +
3A MET 5.8 0.2 - - - -
4A LEU* 3.7 29.2 + - + +
101B PHE* 4.7 8.7 - - - +
105B ASN* 3.4 32.4 - - - +
110B ASP* 4.3 5.3 - - - +
171B TYR* 3.1 26.7 + - + +
172B ARG* 2.6 46.7 + - - +
174B ARG* 1.3 78.2 - - - +
176B LEU* 1.3 61.0 + - - +
178B ASN* 3.3 8.9 + - - +
179B CYS* 3.2 21.5 + - - +
249B LEU* 4.9 1.2 - - - +
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Residues in contact with LEU 176 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
110B ASP* 3.7 13.9 - - + +
113B LEU* 4.4 7.4 - - + -
118B VAL* 6.1 0.4 - - + -
121B LEU* 3.9 30.5 - - + -
125B TYR* 4.2 12.1 - - + -
126B THR* 4.2 12.6 - - + -
172B ARG* 3.0 50.9 + - - +
173B THR 3.7 3.6 - - - +
175B GLU* 1.3 75.3 - - - +
177B ALA* 1.3 58.9 + - - +
179B CYS* 3.1 4.2 + - - +
180B TYR* 2.9 37.1 + - + -
185B PHE* 3.7 35.4 - - + -
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Residues in contact with ALA 177 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
173B THR* 2.9 17.3 + - + +
174B ARG* 3.1 20.6 + - - +
176B LEU* 1.3 78.3 - - - +
178B ASN* 1.3 58.0 + - - +
180B TYR 4.5 2.0 - - - +
181B PRO* 3.0 33.9 - - + +
185B PHE* 3.6 32.9 - - + +
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Residues in contact with ASN 178 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
4A LEU* 3.4 30.9 - - - +
8A ASP* 5.6 2.2 - - - +
174B ARG* 2.9 34.6 + - - +
175B GLU* 3.7 6.7 - - - +
176B LEU 3.2 0.2 - - - -
177B ALA* 1.3 78.4 - - - +
179B CYS* 1.3 60.0 + - - +
181B PRO* 3.7 8.6 - - - +
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Residues in contact with CYS 179 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
110B ASP* 4.0 20.9 - - + -
111B GLN* 4.1 27.6 - - - -
175B GLU 3.2 10.5 + - - +
176B LEU* 3.1 8.2 + - - +
178B ASN* 1.3 79.6 - - - +
180B TYR* 1.3 92.1 + - + +
181B PRO* 3.4 6.3 - - - +
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Residues in contact with TYR 180 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
110B ASP* 2.6 30.2 + - + -
111B GLN* 3.6 11.8 + - - -
113B LEU* 3.8 14.6 + - + -
114B THR 6.3 0.2 - - - -
115B ARG* 4.3 18.4 - - - -
118B VAL* 3.7 33.6 - - + +
176B LEU* 2.9 18.7 + - + +
177B ALA* 3.4 4.2 - - - +
179B CYS* 1.3 105.7 - - + +
181B PRO* 1.3 57.7 - - - +
182B ASP* 2.9 16.0 + - - +
183B VAL* 3.0 32.0 + - + +
184B GLY 4.5 0.3 + - - -
185B PHE* 4.1 10.0 + + + -
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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