Contacts of the helix formed by residues 155 - 185 (chain C) in PDB entry 5A63
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 155 (chain C).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
668A LEU* 3.7 41.4 - - + +
153C SER* 2.7 16.2 + - - +
154C PRO* 1.3 85.1 - - + +
156C TYR* 1.3 58.7 + - - +
157C PHE 3.4 1.1 - - - -
158C LEU* 3.3 19.9 + - + +
159C THR* 2.5 34.1 + - - +
210C TYR* 5.2 3.4 - + + -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 156 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
36A VAL* 4.0 22.8 - - + +
39A LYS* 3.2 32.1 + - + -
461B ALA 3.1 24.9 + - - -
462B PHE 4.0 0.7 + - - -
464B GLN* 3.2 40.3 + - + +
137C ILE* 3.8 25.1 - - + +
147C VAL* 4.0 26.2 - - + -
152C ASP* 5.3 3.8 - - + -
153C SER* 3.1 22.2 + - - +
154C PRO 3.1 1.9 - - - +
155C TYR* 1.3 77.2 - - - +
157C PHE* 1.3 66.3 + + - +
159C THR* 3.2 4.7 + - - -
160C SER* 2.9 25.6 + - - -
210C TYR* 3.6 12.1 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 157 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
36A VAL* 3.5 18.6 - - + -
40A ILE* 3.4 30.5 - - + -
5C VAL* 4.7 8.1 - - + -
9C CYS* 3.8 17.9 - - + +
134C VAL* 5.7 0.3 - - - +
137C ILE* 3.1 32.1 - - + -
138C LEU* 5.5 1.0 - - + +
140C ASP 3.6 0.2 - - - -
141C ALA* 3.3 36.8 - - + -
145C GLY 4.0 10.3 - - - -
146C VAL* 4.3 18.8 - - + -
147C VAL* 4.0 9.4 - - + -
154C PRO 4.4 1.9 + - - +
155C TYR 3.3 1.2 + - - -
156C TYR* 1.3 87.1 - + - +
158C LEU* 1.3 58.2 + - - +
160C SER* 3.2 6.4 + - - -
161C ALA* 2.9 28.6 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 158 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
668A LEU* 6.5 0.7 - - + -
671A ILE* 6.5 1.3 - - + -
672A THR* 3.4 44.9 - - + +
675A VAL* 4.9 6.3 - - + -
9C CYS* 4.0 9.3 - - - -
12C VAL* 4.6 11.7 - - + -
155C TYR* 3.3 22.6 + - + +
156C TYR 3.3 0.4 - - - -
157C PHE* 1.3 79.5 - - - +
159C THR* 1.3 58.1 + - - +
161C ALA* 3.2 5.0 + - - +
162C PHE* 2.9 58.8 + - + -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 159 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
464B GLN* 3.8 6.7 - - - +
155C TYR* 2.5 30.6 + - - +
156C TYR 3.2 6.1 - - - -
158C LEU* 1.3 77.6 - - - +
160C SER* 1.3 56.2 + - - +
162C PHE* 3.2 8.3 + - - +
163C LEU* 2.9 29.9 + - + +
207C ASN* 4.7 0.4 - - - +
210C TYR* 3.3 45.6 - - + -
214C LEU* 3.6 28.0 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with SER 160 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
464B GLN* 3.9 12.5 + - - +
466B TYR* 2.4 45.3 + - - -
134C VAL* 4.1 5.2 - - - +
137C ILE* 3.0 35.2 - - - +
156C TYR* 2.9 13.6 + - - -
157C PHE* 3.4 9.9 - - - -
159C THR* 1.3 75.5 - - - +
161C ALA* 1.3 58.4 - - - +
163C LEU* 3.2 3.9 + - - -
164C THR* 2.9 21.7 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 161 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
9C CYS* 3.2 41.1 - - + +
12C VAL* 3.6 9.6 - - + -
13C ALA* 3.4 9.8 - - + -
134C VAL* 4.1 13.9 - - + +
138C LEU* 5.2 0.2 - - + -
157C PHE 2.9 13.0 + - - +
158C LEU* 3.3 9.4 - - - +
160C SER* 1.3 77.1 - - - +
162C PHE* 1.3 56.6 + - - +
164C THR* 3.2 4.9 + - - -
165C ALA* 2.9 24.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 162 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
675A VAL* 3.5 33.0 - - + -
679A ILE* 4.7 18.4 - - + -
12C VAL* 3.2 22.2 - - + -
158C LEU* 2.9 43.6 + - + -
159C THR* 3.6 8.5 - - - +
161C ALA* 1.3 75.9 - - - +
163C LEU* 1.3 57.9 + - - +
165C ALA* 3.2 5.9 + - + +
166C ALA 2.9 24.6 + - - -
214C LEU* 4.4 17.0 - - + -
218C TYR* 3.5 36.7 - + + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 163 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
464B GLN* 5.2 2.2 - - + +
466B TYR* 3.4 33.7 - - + +
159C THR* 2.9 12.9 + - + +
160C SER* 3.2 9.6 + - - +
162C PHE* 1.3 76.5 - - - +
164C THR* 1.3 57.0 + - - +
166C ALA* 3.2 6.0 + - - +
167C ILE* 2.9 34.9 + - + +
204C THR* 3.4 21.1 - - + -
207C ASN* 3.5 22.4 - - - +
213C SER* 4.5 0.4 - - - +
214C LEU* 3.5 20.1 - - + +
217C ILE* 3.3 42.6 - - + -
218C TYR* 5.3 0.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 164 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
466B TYR* 3.6 5.3 - - - -
13C ALA* 3.6 18.6 - - + -
14C PHE* 4.2 1.8 - - + -
130C GLY* 3.4 30.5 - - - +
133C SER* 2.5 26.2 + - - -
134C VAL* 3.0 19.2 - - + +
160C SER 2.9 8.2 + - - -
161C ALA 3.2 8.5 + - - -
163C LEU* 1.3 75.6 - - - +
165C ALA* 1.3 59.0 + - - +
167C ILE* 3.2 6.7 + - - +
168C ILE* 2.9 41.6 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 165 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
12C VAL* 3.0 29.6 - - + +
13C ALA 3.3 14.6 - - - +
16C PRO* 4.4 10.4 - - + +
161C ALA 2.9 8.3 + - - +
162C PHE* 3.3 11.2 - - - +
164C THR* 1.3 76.5 - - - +
166C ALA* 1.3 57.0 - - - +
168C ILE* 3.2 4.2 + - - +
169C LEU* 2.9 34.1 + - + +
218C TYR* 3.9 12.1 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 166 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
162C PHE 2.9 6.0 + - - +
163C LEU* 3.3 10.3 - - - +
165C ALA* 1.3 76.5 - - - +
167C ILE* 1.3 53.0 + - - +
169C LEU* 3.2 8.1 + - - +
170C LEU* 2.7 39.3 + - - +
217C ILE* 3.8 17.7 - - + -
218C TYR* 3.5 30.3 + - + -
221C THR* 3.6 18.2 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 167 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
466B TYR* 4.1 26.7 - - + -
467B ILE 6.1 5.2 - - - -
126C GLY 5.0 0.2 - - - +
129C SER* 4.0 18.6 - - - +
130C GLY* 4.8 5.8 - - - +
133C SER* 6.4 0.7 - - - -
163C LEU* 2.9 20.2 + - + +
164C THR* 3.2 10.3 + - - +
166C ALA* 1.3 78.0 - - + +
168C ILE* 1.3 53.4 + - - +
170C LEU* 3.6 4.3 - - + +
171C HIS* 2.8 56.0 + - + +
174C TRP* 4.8 8.5 - - + -
197C HIS* 5.6 3.1 - - + -
200C THR* 4.1 30.5 - - + +
204C THR* 5.9 1.8 - - + -
217C ILE* 5.4 4.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 168 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
13C ALA 3.3 25.1 - - - +
14C PHE* 3.7 25.6 - - + -
16C PRO* 6.0 1.6 - - + -
17C ALA* 3.4 32.8 - - + +
20C LEU* 6.0 0.2 - - + -
123C LEU* 4.2 10.5 - - + +
126C GLY* 3.0 40.1 - - - +
127C ILE* 4.0 3.4 - - - +
130C GLY* 4.1 4.0 - - - -
164C THR* 2.9 23.4 + - + +
165C ALA 3.2 5.8 + - - +
167C ILE* 1.3 76.9 - - - +
169C LEU* 1.3 63.0 + - + +
171C HIS 3.6 0.2 + - - -
172C THR* 3.3 20.6 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 169 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
16C PRO* 4.6 13.9 - - + -
20C LEU* 5.0 8.7 - - + -
165C ALA* 2.9 17.0 + - + +
166C ALA* 3.5 9.4 - - - +
168C ILE* 1.3 76.8 - - + +
170C LEU* 1.3 63.0 + - - +
172C THR* 3.3 8.5 + - - -
173C PHE* 3.2 46.1 + - + -
218C TYR* 5.1 13.2 - - + +
221C THR* 3.7 17.0 - - + -
1245C PC1 3.7 53.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 170 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
166C ALA 2.7 17.8 + - - +
167C ILE* 3.6 7.4 - - + +
169C LEU* 1.3 75.7 - - - +
171C HIS* 1.3 58.5 + - - +
173C PHE* 3.2 3.4 + - - +
174C TRP* 2.9 75.3 + - + +
200C THR* 3.5 28.9 - - + -
217C ILE* 4.3 4.9 - - + +
220C VAL* 4.3 5.6 - - + +
221C THR* 3.4 34.8 - - + +
224C MET* 3.4 25.8 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 171 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
467B ILE 6.0 0.4 - - - -
83C GLN* 3.4 19.6 + - + -
84C GLU* 5.6 0.2 - - - -
87C ARG* 3.1 17.5 + - - -
122C GLY* 3.4 5.1 - - - +
125C PHE* 3.5 33.7 - + + +
126C GLY* 3.4 24.9 - - - +
129C SER* 3.9 8.9 + - - -
167C ILE* 2.8 45.2 + - + +
170C LEU* 1.3 73.7 - - - +
172C THR* 1.3 56.2 + - - +
174C TRP* 3.2 21.3 + + - +
175C GLY 2.9 24.6 + - - -
197C HIS* 3.4 29.2 + + - -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 172 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
20C LEU* 4.3 7.0 - - + +
119C TYR* 3.6 46.3 - - + +
122C GLY* 3.4 10.7 + - - -
123C LEU* 3.2 28.6 - - - +
168C ILE 3.3 10.0 + - - -
169C LEU 3.3 10.5 + - - -
170C LEU 3.2 0.2 - - - -
171C HIS* 1.3 76.9 - - - +
173C PHE* 1.3 70.1 + - + +
175C GLY* 3.2 2.8 + - - -
176C VAL* 2.9 34.1 + - + +
1245C PC1 5.6 0.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 173 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
169C LEU* 3.2 46.1 + - + -
170C LEU* 3.2 6.9 + - - +
172C THR* 1.3 87.4 - - + +
174C TRP* 1.3 58.1 + - - +
176C VAL* 3.2 3.3 + - - +
177C VAL* 2.9 33.1 + - - +
221C THR* 3.5 11.9 - - + -
224C MET* 3.6 26.7 - - + +
225C GLY* 3.2 21.5 - - - -
228C ALA* 3.9 13.0 - - + +
1245C PC1 3.3 68.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with TRP 174 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
87C ARG* 3.2 22.0 - - - +
167C ILE* 4.8 4.7 - - + -
170C LEU* 2.9 42.4 + - + +
171C HIS* 3.2 41.5 + + - +
173C PHE* 1.3 76.3 - - - +
175C GLY* 1.3 52.8 + - - +
177C VAL* 3.2 3.4 + - - +
178C PHE* 2.5 42.2 + - - +
193C VAL* 3.6 23.4 + - + +
196C SER* 3.6 20.0 - - - -
197C HIS* 3.2 66.2 - + + -
200C THR* 3.9 12.6 - - + -
224C MET* 3.5 23.4 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 175 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
87C ARG* 3.9 17.9 - - - -
118C ALA* 3.6 18.0 - - - +
122C GLY* 4.3 2.7 - - - -
171C HIS 2.9 13.0 + - - -
172C THR 3.6 3.8 - - - -
174C TRP* 1.3 75.7 - - - +
176C VAL* 1.3 63.1 + - - +
178C PHE* 4.4 0.2 - - - -
179C PHE* 3.1 37.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 176 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
115C ARG 5.5 1.6 - - - +
118C ALA* 4.5 7.2 + - + +
119C TYR* 4.0 25.4 - - + +
172C THR* 2.9 19.0 + - + +
173C PHE 3.5 7.6 - - - +
175C GLY* 1.3 78.2 - - - +
177C VAL* 1.3 58.9 + - - +
179C PHE* 4.6 1.4 - - - +
180C ASP* 3.5 18.5 + - - +
228C ALA* 3.3 24.7 - - + +
231C THR* 3.3 20.7 + - - +
232C ALA* 4.1 14.4 - - + +
1245C PC1 4.0 24.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 177 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
173C PHE 2.9 20.7 + - - +
174C TRP 3.7 2.5 - - - +
176C VAL* 1.3 76.8 - - - +
178C PHE* 1.3 59.9 + - - +
180C ASP* 3.2 7.0 + - - +
181C ALA* 2.9 25.8 + - - +
189C ALA* 4.6 5.4 - - + -
193C VAL* 3.4 25.6 - - + -
224C MET* 4.5 4.0 - - - +
227C TRP* 3.5 54.7 - - + +
228C ALA* 3.9 16.6 - - - +
231C THR* 4.2 7.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 178 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
84C GLU* 3.7 38.1 - - + -
87C ARG* 3.6 27.6 - - + -
88C PHE* 3.6 38.1 - + + -
91C TYR* 5.3 1.8 - - + -
174C TRP 2.5 22.7 + - - +
175C GLY 4.1 1.6 - - - +
177C VAL* 1.3 74.9 - - - +
179C PHE* 1.3 65.3 + + + +
181C ALA* 3.2 3.1 + - - -
182C CYS* 2.9 27.9 + - + +
190C LEU* 3.3 49.6 - - + +
193C VAL* 4.0 21.3 - - + -
194C VAL* 4.6 4.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 179 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
87C ARG* 4.2 16.6 - - + -
90C TYR* 3.9 2.7 - + - -
91C TYR* 3.5 52.3 - + + -
94C LEU* 3.8 13.9 - - + -
114C ILE* 4.0 16.4 - - + -
118C ALA* 3.2 31.4 - - + -
121C SER* 3.7 31.4 - - - -
175C GLY* 3.1 28.3 + - - +
176C VAL 4.6 0.4 - - - +
178C PHE* 1.3 85.0 - + - +
180C ASP* 1.3 56.4 + - - +
182C CYS* 2.5 30.4 - - - -
183C GLU* 2.9 14.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 180 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
115C ARG* 5.8 4.3 - - - +
176C VAL 3.5 14.5 + - - +
177C VAL 3.2 10.4 + - - +
179C PHE* 1.3 80.3 - - - +
181C ALA* 1.3 57.2 + - - +
183C GLU* 3.2 8.7 + - - +
184C ARG* 2.9 60.8 + - - +
186C ARG* 4.3 13.9 + - - -
231C THR* 4.0 36.3 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 181 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
177C VAL 2.9 11.6 + - - +
178C PHE* 3.2 10.1 + - - +
180C ASP* 1.3 76.1 + - - +
182C CYS* 1.3 64.4 + - - +
184C ARG 3.3 0.9 + - - -
185C ARG* 3.0 19.8 + - - -
186C ARG* 3.0 31.2 + - - +
189C ALA* 3.5 29.6 - - + -
190C LEU* 3.8 17.3 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with CYS 182 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
88C PHE* 4.8 12.1 - - + -
91C TYR* 3.1 61.2 + - + -
178C PHE* 2.9 13.6 + - + +
179C PHE* 2.5 31.2 - - - -
181C ALA* 1.3 77.1 - - - +
183C GLU* 1.3 66.6 + - - +
185C ARG* 3.3 13.0 + - - +
190C LEU* 4.3 9.8 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 183 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
91C TYR* 3.1 26.1 + - - -
95C LYS* 3.2 28.2 - - - +
114C ILE* 4.2 28.3 - - + +
179C PHE 2.9 17.4 + - - +
180C ASP* 3.4 12.3 - - - +
182C CYS* 1.3 80.9 - - - +
184C ARG* 1.3 65.0 + - + +
185C ARG* 3.2 2.6 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 184 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
180C ASP* 2.9 37.2 + - - +
181C ALA 3.3 0.2 + - - -
183C GLU* 1.3 78.3 - - + +
185C ARG* 1.3 65.8 + - - +
186C ARG* 3.1 57.0 + - + +
231C THR 5.1 6.5 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 185 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
181C ALA 3.0 6.3 + - - -
182C CYS* 3.3 8.2 + - - +
183C GLU 3.2 6.8 - - - +
184C ARG* 1.3 79.2 - - - +
186C ARG* 1.3 58.2 + - - +
187C TYR* 3.2 47.0 + - + -
----------------------------------------------------------
Back to top of page
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