Contacts of the helix formed by residues 189 - 213 (chain A) in PDB entry 2IAG
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 THR 189 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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185A ALA* 5.2 0.8 - - + +
187A PRO* 4.4 19.5 - - + -
188A ARG* 1.3 77.6 - - - +
190A HIS* 1.3 63.9 + - - +
191A GLU* 3.3 21.4 - - + +
192A SER* 3.0 30.4 + - - +
193A GLN* 3.0 29.9 + - - +
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Residues in contact with HIS 190 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
189A THR* 1.3 74.8 - - - +
191A GLU* 1.3 73.7 + - - +
193A GLN* 4.0 8.7 - - - +
194A ALA* 3.1 32.5 + - + +
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Residues in contact with GLU 191 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
189A THR* 3.3 20.4 - - + +
190A HIS* 1.3 99.1 + - - +
192A SER* 1.3 57.4 + - - +
194A ALA* 3.9 5.3 - - - +
195A GLN* 3.1 25.8 + - - +
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Residues in contact with SER 192 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
184A GLU* 3.6 22.0 - - - +
185A ALA* 3.5 36.8 + - - +
188A ARG* 4.0 4.7 - - - -
189A THR* 3.0 33.4 + - - -
191A GLU* 1.3 74.7 - - - +
193A GLN* 1.3 65.4 + - - +
195A GLN* 3.3 1.4 + - - +
196A ASP* 2.9 27.0 + - - +
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Residues in contact with GLN 193 (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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142A THR* 5.2 0.5 + - - -
146A ALA* 4.2 17.8 - - + +
188A ARG* 3.0 52.2 + - - +
189A THR 3.0 21.1 + - - +
190A HIS* 4.0 7.9 - - - +
192A SER* 1.3 80.7 + - - +
194A ALA* 1.3 56.6 + - - +
196A ASP* 3.2 8.2 + - - +
197A ARG* 3.1 32.9 + - - +
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Residues in contact with ALA 194 (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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190A HIS* 3.1 26.9 + - + +
191A GLU* 3.9 6.3 - - - +
192A SER 3.3 0.2 - - - -
193A GLN* 1.3 73.3 - - - +
195A GLN* 1.3 65.4 + - - +
197A ARG* 3.4 26.4 + - - +
198A VAL* 3.3 27.1 + - - +
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Residues in contact with GLN 195 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
184A GLU* 4.1 27.6 - - + +
191A GLU 3.1 19.1 + - - +
192A SER 3.3 5.1 + - - +
194A ALA* 1.3 76.3 - - - +
196A ASP* 1.3 57.9 + - - +
198A VAL* 3.4 15.8 + - - +
199A HIS* 2.9 40.8 + - + +
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Residues in contact with ASP 196 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
178A LEU* 3.5 26.9 - - + +
183A ILE* 3.2 13.9 - - - +
184A GLU* 2.6 38.8 + - - +
185A ALA 4.5 0.2 + - - -
192A SER 2.9 13.0 + - - +
193A GLN* 3.2 8.5 + - - +
195A GLN* 1.3 75.9 - - - +
197A ARG* 1.3 54.9 + - - +
199A HIS* 4.4 4.8 - - - +
200A SER* 2.5 42.5 + - - -
249A ARG* 2.9 24.4 + - - -
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Residues in contact with ARG 197 (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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146A ALA* 3.8 11.7 - - + +
147A VAL* 3.9 11.7 - - + -
150A GLY* 3.5 24.4 + - - -
151A ASP* 3.0 38.5 + - - +
154A GLU* 2.6 41.6 + - - +
174A ARG* 2.7 28.4 + - - +
193A GLN* 3.1 15.4 + - + +
194A ALA* 3.6 26.8 + - - +
195A GLN 3.3 0.2 - - - -
196A ASP* 1.3 78.0 - - + +
198A VAL* 1.3 61.3 + - - +
200A SER* 3.6 1.6 - - - -
201A ALA* 3.0 19.6 + - - +
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Residues in contact with VAL 198 (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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154A GLU* 5.9 1.6 - - - +
194A ALA 3.3 14.4 + - - +
195A GLN* 3.4 19.9 + - - +
196A ASP 3.3 0.2 - - - -
197A ARG* 1.3 80.3 - - + +
199A HIS* 1.3 65.6 + - - +
201A ALA* 3.3 7.0 + - - +
202A ASP* 3.0 23.0 + - + +
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Residues in contact with HIS 199 (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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177A TYR* 2.5 44.3 + + - -
178A LEU* 4.9 0.4 - - + -
184A GLU* 5.9 1.3 - - - +
195A GLN* 2.9 32.1 + - + +
196A ASP* 4.3 4.7 - - - +
198A VAL* 1.3 74.0 - - - +
200A SER* 1.3 59.3 + - - +
202A ASP* 3.1 10.8 + - - +
203A VAL* 3.0 38.8 + - + +
240A LEU* 4.1 27.1 - - + +
245A ARG* 6.3 0.7 - - - -
249A ARG* 3.5 31.1 + - - +
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Residues in contact with SER 200 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
147A VAL* 4.6 1.2 - - - +
173A LEU* 5.0 0.2 - - - +
174A ARG* 3.0 53.6 + - - +
177A TYR* 4.3 4.7 - - - -
178A LEU* 4.2 15.7 - - - +
196A ASP 2.5 26.1 + - - -
197A ARG* 3.1 3.8 + - - -
199A HIS* 1.3 81.0 - - - +
201A ALA* 1.3 54.6 + - - +
203A VAL* 3.2 8.9 + - - +
204A PHE 2.9 24.1 + - - -
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Residues in contact with ALA 201 (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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174A ARG* 3.3 21.3 - - - +
197A ARG 3.0 20.6 + - - +
198A VAL* 3.3 7.6 + - - +
200A SER* 1.3 72.3 + - - +
202A ASP* 1.3 59.6 + - - +
204A PHE* 3.3 0.7 + - - +
205A HIS* 2.6 54.0 + - + +
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Residues in contact with ASP 202 (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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198A VAL* 3.0 13.8 + - + +
199A HIS* 3.1 13.2 + - - +
201A ALA* 1.3 76.5 - - - +
203A VAL* 1.3 61.7 + - - +
205A HIS* 3.3 4.8 + - - +
206A THR* 2.9 41.8 + - - -
236A ARG* 2.6 38.6 + - - -
240A LEU* 3.6 16.4 - - - +
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Residues in contact with VAL 203 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
173A LEU* 4.3 10.8 - - + -
177A TYR* 4.0 28.5 - - + +
199A HIS* 3.0 38.7 + - + +
200A SER* 3.2 10.1 + - - +
202A ASP* 1.3 74.5 - - - +
204A PHE* 1.3 59.3 + - - +
206A THR* 4.0 0.6 - - - -
207A PHE* 2.9 33.3 + - + +
237A LEU* 4.3 2.7 - - + +
240A LEU* 4.3 15.3 - - + -
241A LEU* 4.3 12.8 - - + -
281A LEU* 3.9 26.0 - - + -
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Residues in contact with PHE 204 (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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166A ASP* 4.3 15.5 - - + -
169A TYR* 3.5 27.1 - + + -
170A SER* 3.4 46.7 - - - -
173A LEU* 3.9 23.3 - - + +
174A ARG* 3.8 13.7 - - + -
200A SER 2.9 16.9 + - - +
201A ALA 3.7 3.1 - - - +
202A ASP 3.3 0.2 - - - -
203A VAL* 1.3 79.3 - - - +
205A HIS* 1.3 84.5 + + - +
207A PHE* 3.8 0.8 - - - +
208A ARG* 2.9 60.2 + - + +
212A ARG* 6.3 0.2 - - - -
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Residues in contact with HIS 205 (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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170A SER* 5.8 1.5 + - - -
174A ARG* 6.0 0.4 - - - -
201A ALA* 2.6 50.6 + - + +
202A ASP* 4.2 4.3 - - - +
204A PHE* 1.3 98.6 - + - +
206A THR* 1.3 62.0 + - - +
208A ARG* 3.6 5.1 + - - +
209A GLN* 3.2 26.5 + - - +
212A ARG* 5.2 0.9 + - - -
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Residues in contact with THR 206 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
202A ASP* 2.9 30.5 + - - -
205A HIS* 1.3 74.7 - - - +
207A PHE* 1.3 65.6 + - - +
209A GLN* 3.1 24.4 + - - +
233A VAL* 3.4 36.7 - - + +
236A ARG* 3.9 27.8 + - + -
237A LEU* 3.6 29.2 - - + -
240A LEU* 4.3 2.3 - - - +
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Residues in contact with PHE 207 (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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169A TYR* 3.2 28.7 - + - -
173A LEU* 3.3 29.2 - - + -
203A VAL 2.9 20.8 + - - +
204A PHE* 3.8 2.5 - - - +
206A THR* 1.3 75.7 - - - +
208A ARG* 1.3 66.9 + - + +
210A LEU* 3.1 17.0 + - + +
211A ASP* 2.9 44.0 + - + -
214A LEU* 6.4 0.2 - - + -
237A LEU* 3.9 14.0 - - + +
278A VAL* 5.3 2.2 - - + -
281A LEU* 4.0 26.2 - - + -
282A TRP* 3.8 41.3 - + + -
286A GLY* 4.4 4.3 - - - -
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Residues in contact with ARG 208 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
165A LEU* 4.0 16.9 - - - +
166A ASP* 5.0 5.7 + - - -
169A TYR* 3.4 32.2 - - - -
204A PHE* 2.9 48.2 + - + +
205A HIS* 3.9 6.7 - - - +
206A THR 3.2 0.4 - - - -
207A PHE* 1.3 79.4 - - + +
209A GLN* 1.3 62.2 + - - +
211A ASP* 2.9 30.4 + - - +
212A ARG* 3.0 81.7 + - - +
487A GLN* 3.0 24.5 - - - +
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Residues in contact with GLN 209 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
205A HIS* 3.2 21.7 + - - +
206A THR* 3.1 20.0 + - - +
208A ARG* 1.3 77.8 - - - +
210A LEU* 1.3 61.2 + - - +
212A ARG* 3.9 21.3 + - - +
213A LEU* 4.0 8.8 + - - +
229A HIS* 2.6 41.4 + - + +
230A MET* 3.4 17.1 - - - +
233A VAL* 3.8 12.7 - - + +
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Residues in contact with LEU 210 (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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107A ILE* 4.7 5.2 - - + +
108A PHE* 4.1 22.4 - - + -
206A THR 3.6 2.0 + - - -
207A PHE* 3.1 17.3 + - + +
209A GLN* 1.3 78.5 - - - +
211A ASP* 1.3 67.5 + - - +
213A LEU* 3.1 13.5 + - - +
214A LEU* 3.4 19.8 + - + +
217A LEU* 3.9 22.2 - - + -
230A MET* 3.8 11.4 - - - -
233A VAL* 3.9 13.6 - - + +
234A LYS* 4.0 29.4 - - + -
237A LEU* 3.8 22.0 - - + -
278A VAL* 4.2 9.6 - - + -
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Residues in contact with ASP 211 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
169A TYR* 2.7 27.8 + - - -
207A PHE* 2.9 30.6 + - + +
208A ARG* 2.9 27.3 + - - +
210A LEU* 1.3 74.9 - - - +
212A ARG* 1.3 56.0 + - - +
213A LEU 3.1 1.6 + - - -
214A LEU* 3.1 20.3 + - - +
282A TRP* 4.0 19.4 + - - -
286A GLY 5.0 1.2 - - - +
480A ARG* 2.3 36.8 + - - -
487A GLN* 2.9 12.8 - - - +
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Residues in contact with ARG 212 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
166A ASP* 4.5 12.7 + - - -
204A PHE* 6.3 0.2 - - - -
205A HIS 5.2 0.8 + - - -
208A ARG* 3.0 74.1 + - - +
209A GLN* 4.1 21.2 - - - +
210A LEU 3.3 0.2 - - - -
211A ASP* 1.3 75.1 - - - +
213A LEU* 1.3 69.5 + - + +
214A LEU 3.8 0.2 + - - -
215A PRO* 4.1 5.5 - - - +
216A LYS* 5.5 1.4 - - - -
477A ASP* 5.1 5.0 - - - +
480A ARG* 3.4 12.5 + - - +
487A GLN* 5.4 1.6 - - - +
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Residues in contact with LEU 213 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
209A GLN 4.0 4.2 + - - +
210A LEU 3.1 4.0 + - - +
211A ASP 3.1 1.2 - - - -
212A ARG* 1.3 88.6 - - + +
214A LEU* 1.3 64.9 + - - +
215A PRO* 3.4 3.8 - - - -
216A LYS* 3.2 36.9 + - - +
217A LEU* 2.9 25.1 + - + +
222A LEU* 4.3 13.0 - - + -
226A ASP* 4.4 15.7 - - + +
229A HIS* 4.3 8.5 - - + +
230A MET* 3.3 49.4 - - + -
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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
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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) + - + + + + + -
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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