Contacts of the helix formed by residues 155 - 181 (chain C) in PDB entry 2AXT
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 155 (chain C).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
153C ASP* 2.3 28.0 + - - +
154C LYS* 1.3 71.0 - - - +
156C LYS* 1.3 60.8 + - - +
157C MET 2.8 6.3 + - - -
158C THR* 2.9 12.9 + - - -
159C THR* 2.7 18.0 + - - +
251C HIS 4.7 1.2 + - - -
252C ILE 5.8 1.2 + - - -
254C THR 3.2 24.1 + - - +
255C THR* 3.0 17.4 + - + +
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Residues in contact with LYS 156 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
148C GLY 5.3 2.2 - - - +
149C TYR* 4.8 11.2 - - + -
150C ASP 4.7 10.1 - - - +
153C ASP* 2.9 35.2 + - + +
155C ASN* 1.3 73.1 - - - +
157C MET* 1.3 57.3 + - - +
159C THR* 3.3 10.1 - - - -
160C ILE* 2.9 36.4 + - + +
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Residues in contact with MET 157 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
149C TYR* 5.0 6.3 - - + -
150C ASP 3.6 18.2 - - - +
151C TRP* 3.3 51.1 - - + +
153C ASP 3.4 17.3 - - - +
154C LYS* 5.0 0.7 - - - -
155C ASN 2.8 1.3 - - - +
156C LYS* 1.3 77.4 - - - +
158C THR* 1.3 59.1 + - - +
159C THR 2.8 10.3 + - - -
160C ILE* 3.1 13.4 + - + +
161C LEU* 2.9 26.3 + - - +
271C TYR* 4.2 13.5 - - + -
497C CLA 3.7 49.7 - - + +
499C CLA 6.2 0.7 - - + -
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Residues in contact with THR 158 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
154C LYS 3.5 4.2 + - - -
155C ASN* 2.9 9.7 + - - -
157C MET* 1.3 76.6 - - - +
159C THR* 1.3 55.7 + - - +
161C LEU* 4.2 7.6 - - + -
162C GLY 3.2 9.0 + - - -
251C HIS* 2.9 78.6 - - + +
254C THR 3.3 19.3 - - - +
255C THR* 4.7 1.8 - - - +
256C PRO* 3.4 27.7 - - - +
496C CLA 4.9 5.9 - - + +
497C CLA 3.9 9.8 - - - +
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Residues in contact with THR 159 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
146C PHE* 5.2 6.1 - - + -
155C ASN* 2.7 22.2 + - - -
156C LYS* 3.3 14.2 - - - -
157C MET 2.8 1.4 + - - -
158C THR* 1.3 76.5 - - - +
160C ILE* 1.3 65.7 - - + -
161C LEU 3.1 1.3 - - - -
162C GLY* 2.9 12.5 + - - -
163C PHE* 3.0 40.3 + - + -
251C HIS 4.8 0.7 + - - -
252C ILE* 3.6 28.3 + - + +
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Residues in contact with ILE 160 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
149C TYR* 4.1 25.4 - - + -
156C LYS* 2.9 20.4 - - + +
157C MET* 3.1 13.9 + - + +
159C THR* 1.3 73.2 - - - +
161C LEU* 1.3 69.0 + - - +
163C PHE* 3.2 13.1 + - + +
164C HIS* 3.2 53.5 + - + +
497C CLA 4.3 9.9 - - + -
502C CLA 4.0 45.1 - - + +
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Residues in contact with LEU 161 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
157C MET 2.9 16.7 + - - +
158C THR* 3.9 7.0 - - - +
160C ILE* 1.3 76.1 - - - +
162C GLY* 1.3 53.6 + - - +
164C HIS* 3.1 7.5 + - - +
165C LEU* 2.7 41.1 + - + +
251C HIS* 4.1 17.3 - - + +
496C CLA 3.9 51.6 - - + -
497C CLA 3.3 69.0 - - + +
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Residues in contact with GLY 162 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
158C THR 3.2 9.3 + - - -
159C THR 2.9 9.7 + - - -
161C LEU* 1.3 80.1 - - - +
163C PHE* 1.3 61.5 + - - -
165C LEU* 3.2 2.2 + - - -
166C ILE* 3.0 9.4 + - - +
248C GLY* 3.0 48.0 - - - -
251C HIS* 3.9 5.6 - - - -
252C ILE* 3.8 4.5 - - - -
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Residues in contact with PHE 163 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
146C PHE* 3.7 27.8 - + - -
159C THR* 3.0 43.0 + - + -
160C ILE* 3.2 15.7 + - + +
162C GLY* 1.3 72.6 - - - +
164C HIS* 1.3 53.1 + - + +
166C ILE* 2.6 35.3 + - + +
167C VAL* 2.8 19.6 + - - +
252C ILE* 3.3 30.5 - - + -
502C CLA 3.3 67.6 - - + +
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Residues in contact with HIS 164 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
160C ILE* 3.2 35.6 + - + +
161C LEU 3.4 6.7 - - - +
163C PHE* 1.3 78.5 - - - +
165C LEU* 1.3 58.0 + - - +
167C VAL* 2.9 8.4 + - + +
168C LEU* 2.8 34.1 + - + +
497C CLA 2.8 45.2 + - - +
502C CLA 3.0 75.6 + + + -
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Residues in contact with LEU 165 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
161C LEU* 2.7 31.5 + - + +
162C GLY 3.3 11.4 - - - +
163C PHE 3.2 0.2 - - - -
164C HIS* 1.3 73.6 - - - +
166C ILE* 1.3 58.0 + - - +
168C LEU* 4.0 3.3 + - + -
169C GLY 3.5 12.6 + - - -
244C CYS* 3.0 59.5 - - - +
247C GLY 4.3 2.5 - - - +
248C GLY* 3.4 7.2 - - - +
251C HIS* 3.3 34.3 - - + -
496C CLA 3.5 50.3 - - + -
497C CLA 3.8 5.3 - - + -
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Residues in contact with ILE 166 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
162C GLY 3.0 16.8 - - - +
163C PHE* 2.6 20.0 + - + +
165C LEU* 1.3 71.2 - - - +
167C VAL* 1.3 63.5 + - + +
168C LEU 3.2 0.4 - - - -
169C GLY* 3.0 2.3 + - - -
170C ILE* 2.9 31.8 + - + +
245C ILE* 3.4 26.6 - - + +
248C GLY* 3.5 15.7 - - - +
249C ILE* 3.8 17.0 - - + -
252C ILE* 3.6 24.9 - - + -
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Residues in contact with VAL 167 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
163C PHE 2.8 15.2 + - - +
164C HIS* 3.3 13.0 - - - +
166C ILE* 1.3 78.4 - - + +
168C LEU* 1.3 63.2 + - + +
170C ILE* 3.3 9.1 + - - +
171C GLY 3.2 9.9 + - - -
502C CLA 3.1 107.4 - - + +
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Residues in contact with LEU 168 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
164C HIS* 2.8 17.4 + - + +
165C LEU* 4.1 7.6 - - - +
167C VAL* 1.3 72.9 - - + +
169C GLY* 1.3 58.5 + - - +
171C GLY* 2.9 5.4 + - - -
172C ALA* 2.8 26.0 + - - +
244C CYS* 4.4 11.0 - - - -
491C CLA 3.6 37.4 - - + +
492C CLA 6.2 1.6 - - + -
493C CLA 5.9 3.4 - - + -
496C CLA 5.1 0.9 - - + -
497C CLA 3.3 72.0 - - + +
499C CLA 5.3 8.1 - - + -
502C CLA 3.7 12.3 - - + +
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Residues in contact with GLY 169 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
165C LEU 3.5 6.3 + - - -
166C ILE 3.0 8.0 + - - -
168C LEU* 1.3 78.9 - - - +
170C ILE* 1.3 61.4 + - - +
172C ALA* 3.2 5.2 + - - +
173C LEU* 3.0 27.7 + - - +
241C GLY* 4.1 11.2 - - - -
244C CYS* 4.3 6.2 - - - +
245C ILE* 3.7 24.0 - - - -
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Residues in contact with ILE 170 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
166C ILE* 2.9 26.2 + - + +
167C VAL* 3.6 10.1 - - - +
168C LEU 3.3 0.2 - - - -
169C GLY* 1.3 74.7 - - - +
171C GLY* 1.3 64.4 + - - +
173C LEU* 3.3 11.2 + - + +
174C LEU* 3.0 32.2 + - + +
245C ILE* 4.3 13.2 - - + +
502C CLA 4.1 15.9 - - + -
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Residues in contact with GLY 171 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
167C VAL 3.2 4.2 + - - -
168C LEU 2.9 8.9 + - - -
170C ILE* 1.3 77.4 - - - +
172C ALA* 1.3 66.3 + - - +
174C LEU* 3.0 23.3 + - - +
175C LEU* 3.5 3.5 + - - +
491C CLA 3.3 8.0 - - - +
492C CLA 3.6 9.9 - - - +
502C CLA 3.7 28.9 - - - +
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Residues in contact with ALA 172 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
168C LEU 2.8 14.1 + - - +
169C GLY 3.6 7.9 - - - +
171C GLY* 1.3 70.7 - - - +
173C LEU* 1.3 64.9 + - - +
175C LEU* 2.9 23.0 + - - +
176C VAL* 3.5 7.6 + - - +
237C HIS* 4.3 17.7 - - + +
240C ILE* 4.0 22.0 - - + -
241C GLY 4.7 1.8 - - - +
491C CLA 3.1 29.0 - - + +
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Residues in contact with LEU 173 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
169C GLY 3.0 18.0 + - - +
170C ILE* 3.6 11.2 - - + +
171C GLY 3.2 0.2 - - - -
172C ALA* 1.3 75.8 - - - +
174C LEU* 1.3 62.5 + - - +
176C VAL* 3.2 13.3 + - + +
177C ALA* 3.0 20.3 + - - +
237C HIS 4.4 4.3 - - - +
238C ILE* 4.1 33.9 - - + +
241C GLY* 4.5 6.5 - - - -
242C LEU* 4.6 16.6 - - + -
245C ILE* 4.2 20.4 - - + -
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Residues in contact with LEU 174 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
170C ILE* 3.0 28.4 + - + +
171C GLY* 3.0 22.5 + - - +
173C LEU* 1.3 77.5 - - - +
175C LEU* 1.3 61.0 + - - +
177C ALA* 3.0 11.9 + - + +
178C LYS* 3.0 18.2 + - - +
492C CLA 3.8 38.8 - - + +
493C CLA 4.3 14.6 - - + -
502C CLA 4.1 17.9 - - + -
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Residues in contact with LEU 175 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
95C LEU* 3.7 29.6 - - + -
171C GLY 3.5 2.3 + - - +
172C ALA 2.9 11.7 + - - +
174C LEU* 1.3 78.4 - - - +
176C VAL* 1.3 65.0 + - - +
178C LYS* 2.9 15.2 + - - +
179C ALA* 3.0 11.9 + - + +
185C LEU* 4.7 10.5 - - + -
233C VAL* 4.7 6.3 - - + +
234C VAL* 5.6 3.8 - - + -
237C HIS* 3.5 46.7 - - + +
491C CLA 3.9 44.9 - - + +
492C CLA 3.7 10.9 - - + +
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Residues in contact with VAL 176 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
172C ALA 3.9 12.3 - - - +
173C LEU* 3.2 17.9 + - + +
175C LEU* 1.3 75.9 - - - +
177C ALA* 1.3 53.2 + - - +
179C ALA* 3.3 0.8 + - - -
180C MET* 2.7 63.3 + - + +
181C PHE* 5.0 3.8 - - + -
234C VAL* 3.9 13.5 - - + +
237C HIS* 4.0 8.7 - - + -
238C ILE* 3.4 44.0 - - + +
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Residues in contact with ALA 177 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
173C LEU 3.0 11.3 + - - +
174C LEU* 3.0 18.3 + - + +
175C LEU 2.9 0.2 - - - -
176C VAL* 1.3 72.9 - - - +
178C LYS* 1.3 59.7 + - - +
179C ALA 3.0 4.5 - - - -
181C PHE* 2.7 43.3 + - + -
182C PHE* 2.9 26.5 + - + -
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Residues in contact with LYS 178 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
95C LEU* 2.7 36.1 + - + +
96C GLY 3.2 15.6 + - - -
97C TRP* 3.3 48.2 - - + +
174C LEU 3.0 5.0 + - - +
175C LEU* 2.9 8.3 + - - +
177C ALA* 1.3 76.0 - - - +
179C ALA* 1.3 55.9 - - - +
182C PHE* 2.5 53.8 + - + +
183C GLY* 4.1 4.9 - - - -
184C GLY 2.9 27.3 + - - +
185C LEU* 4.2 7.2 - - + -
492C CLA 3.5 31.0 - - + -
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Residues in contact with ALA 179 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
175C LEU* 3.0 11.8 + - + +
176C VAL* 3.7 4.0 - - - +
177C ALA 3.0 2.0 - - - -
178C LYS* 1.3 78.7 - - - +
180C MET* 1.3 63.2 + - - +
181C PHE 3.3 1.0 + - - -
184C GLY* 3.2 25.6 + - - -
185C LEU* 3.6 28.0 - - + -
198C VAL* 3.4 12.0 - - - +
199C ILE* 3.5 10.0 + - + -
234C VAL* 3.9 21.3 - - + -
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Residues in contact with MET 180 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
176C VAL* 2.7 46.8 + - + +
179C ALA* 1.3 72.2 - - - +
181C PHE* 1.3 91.6 + - + +
198C VAL* 4.0 11.2 - - - +
199C ILE 3.2 19.4 - - - +
200C THR* 4.6 9.8 - - + +
202C PRO* 3.1 42.2 - - + -
234C VAL* 4.0 7.0 - - + -
238C ILE* 3.8 7.0 - - + -
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Residues in contact with PHE 181 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
176C VAL* 4.8 2.7 - - + -
177C ALA* 2.7 34.3 + - + +
179C ALA 3.3 1.0 - - - -
180C MET* 1.3 117.6 - - + +
182C PHE* 1.3 79.9 + + + +
183C GLY 3.7 4.1 + - - -
184C GLY 5.2 0.2 - - - -
198C VAL* 5.5 3.2 - - - +
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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