Contacts of the helix formed by residues 182 - 196 (chain A) in PDB entry 2ILU
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 PRO 182 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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26A VAL* 3.7 16.8 - - + -
38A ILE* 3.6 42.4 - - + -
93A GLU* 3.2 7.2 - - - +
177A PRO* 4.0 10.3 - - + +
178A SER 3.2 12.1 - - - +
179A GLU 3.7 4.7 - - - +
180A PHE 3.4 6.1 - - - +
181A THR* 1.3 90.7 - - - +
183A ASN* 1.3 65.7 + - - +
184A ASN 3.5 0.7 - - - -
185A ALA* 3.2 6.4 + - - +
186A ILE* 3.1 23.3 + - - +
206A LEU* 4.0 13.5 - - + -
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Residues in contact with ASN 183 (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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7A HIS* 3.0 19.6 + - + +
26A VAL* 3.9 3.3 - - - +
35A ILE* 3.5 28.9 - - - +
36A SER* 2.9 26.8 + - - -
89A LEU* 4.3 24.7 - - + +
92A GLU* 4.2 7.0 + - - -
93A GLU* 2.9 27.9 + - - +
182A PRO* 1.3 78.3 - - - +
184A ASN* 1.3 60.9 - - - +
186A ILE* 3.0 19.1 + - - +
187A ALA* 3.0 13.0 + - - +
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Residues in contact with ASN 184 (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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86A ILE* 4.8 2.9 - - + -
89A LEU* 4.5 7.7 - - + +
90A ILE* 4.1 21.2 - - + +
93A GLU* 2.9 27.8 + - - +
150A LEU* 6.0 0.2 - - - +
155A PRO* 3.2 32.9 - - - +
156A PHE* 3.8 32.8 + - + -
159A ILE* 3.9 6.6 - - - +
177A PRO* 5.4 0.7 - - - +
181A THR 3.3 13.6 + - - +
183A ASN* 1.3 71.6 - - - +
185A ALA* 1.3 74.6 + - - +
187A ALA* 3.3 9.9 + - - +
188A PHE* 2.9 27.7 + - - +
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Residues in contact with ALA 185 (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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159A ILE* 3.6 18.4 - - + -
177A PRO* 3.5 28.9 - - + -
182A PRO 3.3 10.3 - - - +
183A ASN 3.1 0.6 - - - -
184A ASN* 1.3 83.4 + - - +
186A ILE* 1.3 66.5 + - - +
188A PHE* 3.0 4.7 + - - +
189A ALA* 2.9 21.8 + - - +
202A PHE* 5.6 0.5 - - - -
204A LEU* 3.8 22.6 - - + +
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Residues in contact with ILE 186 (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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7A HIS* 3.7 41.5 - - + +
8A PRO* 3.6 25.4 - - + +
15A PHE* 4.3 12.1 - - + -
182A PRO* 3.1 13.2 + - + +
183A ASN 3.0 9.8 + - - +
185A ALA* 1.3 74.5 - - - +
187A ALA* 1.3 58.3 + - - +
189A ALA* 3.0 5.1 + - - +
190A LYS* 2.9 47.0 + - - +
204A LEU* 3.6 22.4 - - + -
206A LEU* 3.7 15.3 - - + -
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Residues in contact with ALA 187 (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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82A ARG* 3.4 15.9 + - - +
85A GLU* 5.7 2.7 - - - +
86A ILE* 4.0 18.2 - - + -
89A LEU* 3.8 28.9 - - + -
183A ASN 3.0 5.4 + - - +
184A ASN* 3.4 9.2 - - - +
186A ILE* 1.3 77.5 - - - +
188A PHE* 1.3 61.3 + - - +
190A LYS* 3.1 11.4 + - - +
191A ILE* 3.1 22.5 + - - +
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Residues in contact with PHE 188 (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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75A ILE* 3.8 12.8 - - + -
79A ILE* 4.0 19.3 - - + -
108A THR* 5.4 0.4 - - - -
112A ILE* 4.2 8.3 - - + -
156A PHE* 3.8 25.9 - + + -
159A ILE* 3.6 33.2 - - + -
160A ALA* 4.7 4.0 - - + -
163A MET* 3.7 30.3 - - + -
184A ASN 2.9 14.6 + - - +
185A ALA 3.0 8.7 + - - +
187A ALA* 1.3 75.7 - - - +
189A ALA* 1.3 59.0 + - - +
191A ILE* 3.1 11.7 + - - +
192A VAL* 3.0 46.9 + - + +
202A PHE* 3.8 19.1 - + + -
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Residues in contact with ALA 189 (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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10A TYR* 3.9 25.1 - - + -
15A PHE* 3.7 17.5 - - + -
185A ALA 2.9 11.8 + - - +
186A ILE 3.4 7.6 - - - +
188A PHE* 1.3 76.8 - - - +
190A LYS* 1.3 58.5 + - - +
192A VAL* 3.2 9.5 + - - +
193A ASP* 2.9 28.9 + - - +
202A PHE* 4.2 11.2 - - + -
204A LEU* 4.0 11.2 - - + -
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Residues in contact with LYS 190 (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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7A HIS* 5.8 4.4 + - - -
15A PHE* 3.6 23.8 - - + -
82A ARG* 3.4 20.4 - - - +
85A GLU* 5.8 2.9 + - - +
186A ILE* 2.9 31.9 + - - +
187A ALA* 3.1 13.2 + - + +
189A ALA* 1.3 75.0 - - - +
191A ILE* 1.3 57.5 - - - +
193A ASP* 3.3 3.2 + - - +
194A GLU* 2.9 34.2 + - + +
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Residues in contact with ILE 191 (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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75A ILE* 3.7 36.3 - - + +
78A GLY* 3.6 16.8 - - - +
79A ILE* 3.6 33.7 - - + +
82A ARG* 3.7 22.2 - - - +
86A ILE* 3.7 21.1 - - + -
187A ALA 3.1 12.4 + - - +
188A PHE* 3.1 8.5 + - - +
190A LYS* 1.3 74.0 - - - +
192A VAL* 1.3 65.6 + - - +
194A GLU* 3.4 7.9 + - - +
195A ILE* 3.2 26.9 + - + +
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Residues in contact with VAL 192 (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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10A TYR* 4.2 15.7 + - + +
75A ILE* 3.9 17.9 - - + -
188A PHE* 3.0 43.1 + - + +
189A ALA 3.2 7.8 + - - +
191A ILE* 1.3 74.6 - - - +
193A ASP* 1.3 64.7 + - - +
195A ILE* 3.2 8.6 - - - +
196A GLY 3.2 15.4 + - - -
197A LEU* 3.2 36.6 + - + +
202A PHE* 3.8 24.0 - - + -
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Residues in contact with ASP 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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10A TYR* 2.7 36.9 + - + +
13A GLY 3.9 8.3 - - - +
14A GLN* 4.7 1.1 - - - -
15A PHE* 3.5 23.0 + - + -
189A ALA 2.9 13.1 + - - +
190A LYS 3.4 8.7 - - - +
191A ILE 3.2 0.2 - - - -
192A VAL* 1.3 75.2 - - - +
194A GLU* 1.3 66.9 + - + +
196A GLY* 2.9 15.9 + - - -
197A LEU 5.4 0.2 - - - +
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Residues in contact with GLU 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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82A ARG* 2.5 36.7 + - - -
190A LYS* 2.9 21.9 + - + +
191A ILE* 3.4 10.6 + - - +
193A ASP* 1.3 75.7 - - + +
195A ILE* 1.3 63.3 + - + +
196A GLY* 3.2 1.6 + - - -
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Residues in contact with ILE 195 (chain A).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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71A TRP* 3.3 28.8 - - + +
74A LYS* 3.7 40.0 + - + +
75A ILE* 3.1 44.6 - - + +
78A GLY* 5.3 3.1 - - - -
191A ILE* 3.2 16.7 + - + +
192A VAL 3.2 13.9 - - - +
194A GLU* 1.3 76.9 - - + +
196A GLY* 1.3 59.3 + - - +
197A LEU* 3.8 6.7 - - + +
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Residues in contact with GLY 196 (chain A).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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71A TRP* 3.6 12.5 - - - -
192A VAL 3.2 1.2 + - - -
193A ASP 2.9 18.7 + - - -
194A GLU 3.1 0.9 - - - -
195A ILE* 1.3 80.4 - - - +
197A LEU* 1.3 70.2 + - - +
198A PRO* 3.3 3.3 - - - +
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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
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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