Contacts of the helix formed by residues 180 - 192 (chain C) in PDB entry 1EN6
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 ARG 180 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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176C LYS 3.6 13.9 + - - -
177C PHE* 2.9 34.5 + - + +
178C GLN* 3.1 27.4 + - - +
179C ASN* 1.3 94.7 + - - +
181C ARG* 1.3 63.3 + - - +
182C PRO* 3.2 7.6 - - + -
183C ASP* 3.1 39.9 + - + +
184C TYR 3.4 6.9 + - - -
25D ILE* 6.2 1.6 - - - +
29D LYS* 6.3 0.8 - - - +
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Residues in contact with ARG 181 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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120C ALA 2.9 28.2 + - - -
121C ALA* 3.7 14.3 + - - +
123C ARG* 2.7 32.3 + - - +
124C PHE* 5.2 0.4 - - - +
125C GLY 3.4 18.8 + - - +
168C VAL* 3.8 19.3 + - + +
170C GLU* 5.3 3.8 + - - +
173C TYR* 3.1 49.4 + - + +
179C ASN 2.9 11.2 + - - +
180C ARG* 1.3 72.5 - - - +
182C PRO* 1.3 70.7 - - + +
184C TYR* 3.0 9.6 + - + +
185C ILE* 2.9 33.9 + - + +
169D TRP* 5.8 4.0 - - - -
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Residues in contact with PRO 182 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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121C ALA* 5.0 13.9 - - + -
179C ASN 4.4 2.0 - - - +
180C ARG* 3.3 8.1 - - - -
181C ARG* 1.3 94.3 - - + +
183C ASP* 1.3 60.6 + - - +
185C ILE* 3.4 12.5 + - + +
186C LYS* 3.1 41.7 + - + +
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Residues in contact with ASP 183 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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177C PHE* 3.9 15.3 - - + -
180C ARG* 3.1 42.9 + - + +
182C PRO* 1.3 76.1 - - - +
184C TYR* 1.3 64.5 + - - +
186C LYS* 3.3 27.5 + - - +
187C GLU* 3.1 27.2 + - - +
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Residues in contact with TYR 184 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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18C PHE* 3.6 30.7 - + - -
84C PHE* 4.0 10.2 - - - -
166C LEU* 3.5 25.5 - - + +
167C ASP 2.7 29.8 + - - -
168C VAL* 4.6 2.7 - - + -
172C ALA* 3.5 28.4 + - + +
173C TYR* 3.4 40.2 - + + -
177C PHE* 3.6 26.1 - + + -
180C ARG 3.4 2.7 + - - +
181C ARG* 3.0 15.0 + - + +
183C ASP* 1.3 80.4 - - - +
185C ILE* 1.3 70.1 + - + +
187C GLU* 3.2 4.0 + - - +
188C PHE* 3.1 19.4 + - - +
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Residues in contact with ILE 185 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
116C PHE* 5.2 4.5 - - + -
117C GLU* 3.6 38.6 - - + +
120C ALA* 3.7 17.5 - - + -
121C ALA* 3.7 39.5 - - + +
166C LEU* 4.1 15.3 - - + -
168C VAL* 5.1 0.4 - - + -
181C ARG* 2.9 34.1 + - + +
182C PRO* 3.6 10.1 - - + +
183C ASP 3.3 0.2 - - - -
184C TYR* 1.3 77.3 - - + +
186C LYS* 1.3 63.1 + - - +
188C PHE* 3.2 21.4 - - + +
189C TRP* 3.8 9.5 + - + +
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Residues in contact with LYS 186 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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117C GLU* 4.0 24.2 - - - +
182C PRO* 3.1 33.0 + - + +
183C ASP* 3.3 29.4 + - - +
184C TYR 3.2 0.2 - - - -
185C ILE* 1.3 76.1 - - - +
187C GLU* 1.3 64.1 + - + +
189C TRP* 3.3 28.4 + - + +
190C ASN* 4.1 5.6 + - - -
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Residues in contact with GLU 187 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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16C PRO 4.2 2.4 - - - +
17C HIS* 3.0 29.2 + - + +
18C PHE* 4.6 4.7 - - + -
176C LYS* 4.1 14.6 + - - -
177C PHE* 3.9 23.4 - - + -
183C ASP* 3.1 17.4 + - + +
184C TYR 3.2 7.2 + - - +
186C LYS* 1.3 75.0 - - + +
188C PHE* 1.3 66.1 + - - +
190C ASN* 2.9 47.8 + - - +
191C VAL* 3.8 5.2 + - - +
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Residues in contact with PHE 188 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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18C PHE* 4.1 14.5 - + + -
84C PHE* 4.6 0.9 - + - -
87C GLY 5.1 1.6 - - - -
88C LEU* 3.9 19.7 - - + -
116C PHE* 3.9 31.4 - + - -
164C MET* 4.0 14.6 - - + -
165C GLY 3.7 21.1 - - - -
166C LEU* 3.5 30.7 - - + -
184C TYR 3.1 12.3 + - - +
185C ILE* 3.2 16.2 - - + +
186C LYS 3.1 0.2 - - - -
187C GLU* 1.3 76.7 - - - +
189C TRP* 1.3 67.8 + + - +
191C VAL* 2.9 19.2 + - + +
192C VAL* 2.9 53.3 + - + +
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Residues in contact with TRP 189 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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112C PHE* 3.9 20.0 - + - -
113C LYS* 3.7 59.5 - - + +
116C PHE* 3.8 29.2 - + + -
117C GLU* 3.0 29.3 + - + +
164C MET* 4.0 21.1 - - + -
185C ILE 3.9 9.6 + - - -
186C LYS* 3.3 24.6 + - + +
187C GLU 3.1 0.8 - - - -
188C PHE* 1.3 80.1 - + - +
190C ASN* 1.3 62.6 + - - +
191C VAL 3.6 0.3 + - - -
192C VAL* 3.9 19.0 + - + +
194C TRP* 4.1 23.2 + + - -
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Residues in contact with ASN 190 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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17C HIS* 3.5 30.1 + - + +
89C LYS 4.2 0.9 - - - +
90C LYS* 4.1 16.6 - - - +
91C GLY 4.8 1.9 + - - -
186C LYS 4.1 3.8 + - - -
187C GLU* 2.9 44.3 + - - +
189C TRP* 1.3 82.3 - - - +
191C VAL* 1.3 59.7 + - - +
192C VAL 5.3 0.7 - - - -
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Residues in contact with VAL 191 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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14C LEU* 4.0 31.6 - - + +
17C HIS* 3.8 30.3 - - + -
18C PHE* 3.8 35.2 - - + -
88C LEU* 3.1 14.2 - - + -
89C LYS 2.7 32.8 + - - -
90C LYS* 4.1 4.7 - - + -
187C GLU 4.1 2.0 - - - +
188C PHE* 3.4 13.5 - - + +
190C ASN* 1.3 83.4 - - - +
192C VAL* 1.3 59.7 + - - +
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Residues in contact with VAL 192 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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87C GLY 3.8 6.5 - - - +
89C LYS 3.7 2.1 - - - +
92C THR* 3.0 15.8 + - - -
164C MET* 3.8 30.1 - - + -
188C PHE* 2.9 59.0 - - + +
189C TRP* 3.9 18.1 + - + +
190C ASN 3.7 2.1 - - - +
191C VAL* 1.3 77.5 - - - +
193C ASN* 1.3 63.5 + - - +
194C TRP* 3.1 33.1 + - + +
197C ALA* 5.6 0.2 - - + -
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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
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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