Contacts of the helix formed by residues 147 - 165 (chain A) in PDB entry 1EG4
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 ILE 147 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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69A LYS* 3.6 30.5 - - + +
70A VAL* 3.8 9.6 - - + -
71A PRO* 3.8 19.3 - - + -
146A ASP* 1.3 74.2 - - - +
148A LEU* 1.3 58.6 + - - +
150A ILE* 3.3 8.3 + - + +
151A ILE* 2.8 48.0 + - + +
179A LEU* 4.1 14.1 - - + -
183A LEU* 4.0 26.0 - - + -
192A GLY* 3.3 30.2 + - - +
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Residues in contact with LEU 148 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
49A SER* 4.6 15.5 - - - +
146A ASP* 3.3 11.3 + - - +
147A ILE* 1.3 80.3 - - - +
149A GLN* 1.3 58.2 + - + +
151A ILE* 3.4 16.9 + - + -
152A ASN* 2.8 54.8 + - - +
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Residues in contact with GLN 149 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
136A HIS* 4.9 5.5 + - + +
138A LEU* 4.0 18.0 - - + +
144A PRO 3.9 5.7 + - - +
145A MET* 3.2 28.8 - - + +
146A ASP* 2.9 43.1 + - - +
148A LEU* 1.3 72.7 - - + +
150A ILE* 1.3 65.9 + - - +
152A ASN* 3.7 10.0 - - - +
153A CYS* 3.1 25.6 + - - +
196A VAL* 5.9 0.2 - - - +
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Residues in contact with ILE 150 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
145A MET* 3.8 25.4 - - + +
146A ASP 3.1 20.4 + - - +
147A ILE* 3.6 7.0 - - + +
149A GLN* 1.3 77.2 - - - +
151A ILE* 1.3 62.7 + - - +
153A CYS* 3.8 1.0 - - - +
154A LEU* 3.0 44.8 + - + +
179A LEU* 3.7 20.0 - - + -
182A LEU* 4.1 8.5 - - + -
183A LEU* 4.2 22.7 - - + -
193A ARG 5.6 0.4 - - - -
194A ILE* 3.7 31.4 - - + +
199A PHE* 4.0 12.8 - - + -
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Residues in contact with ILE 151 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
49A SER* 3.8 21.1 - - - +
52A PHE* 5.3 3.4 - - + -
53A LEU* 3.7 33.7 - - + -
63A ARG* 4.5 3.6 - - - +
71A PRO* 5.5 0.2 - - + -
147A ILE* 2.8 42.9 + - + +
148A LEU* 3.7 15.7 - - + +
150A ILE* 1.3 73.0 - - - +
152A ASN* 1.3 60.0 + - - +
154A LEU* 3.8 1.7 - - - +
155A THR* 2.8 43.4 + - - +
175A VAL* 4.1 12.9 - - + +
179A LEU* 3.9 21.1 - - + -
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Residues in contact with ASN 152 (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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136A HIS* 3.4 19.6 + - + +
148A LEU* 2.8 50.8 + - - +
149A GLN* 3.7 8.9 - - - +
151A ILE* 1.3 74.2 - - - +
153A CYS* 1.3 66.1 + - - +
155A THR* 3.3 6.2 + - - -
156A THR* 3.1 26.3 + - - -
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Residues in contact with CYS 153 (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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132A ALA* 4.0 29.6 - - - -
133A LEU* 4.4 2.9 - - - -
136A HIS* 3.6 17.2 + - + -
138A LEU* 3.8 16.8 - - + -
149A GLN 3.1 14.7 + - - +
150A ILE 3.8 2.0 - - - +
152A ASN* 1.3 82.8 - - - +
154A LEU* 1.3 61.7 + - - +
156A THR* 3.3 4.0 + - - -
157A ILE* 3.0 30.7 + - - +
199A PHE* 3.6 31.9 - - + -
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Residues in contact with LEU 154 (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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121A LEU* 6.3 0.2 - - + -
150A ILE* 3.0 37.0 + - + +
151A ILE 3.9 3.1 - - - +
153A CYS* 1.3 75.4 - - - +
155A THR* 1.4 57.5 + - - +
157A ILE* 3.2 9.2 + - + +
158A TYR* 2.8 46.2 + - + -
175A VAL* 3.7 20.2 - - + +
178A CYS* 3.8 26.2 - - + -
179A LEU* 3.6 28.7 - - + +
182A LEU* 4.3 0.7 - - + -
199A PHE* 3.8 22.4 - - + -
203A ILE* 4.0 8.5 - - + -
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Residues in contact with THR 155 (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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52A PHE* 3.6 29.2 - - + -
151A ILE* 2.8 27.8 + - - +
152A ASN* 3.7 8.1 - - - -
153A CYS 3.3 0.4 - - - -
154A LEU* 1.4 73.9 - - - +
156A THR* 1.3 56.5 + - - +
159A ASP* 2.7 54.3 + - - +
171A VAL* 4.6 1.3 - - + +
175A VAL* 3.6 17.8 - - - +
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Residues in contact with THR 156 (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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132A ALA* 4.0 22.7 - - + -
135A GLN* 5.4 4.7 - - + -
136A HIS* 2.8 30.2 - - + +
152A ASN 3.1 5.6 + - - -
153A CYS 3.4 8.7 - - - -
155A THR* 1.3 74.5 - - - +
157A ILE* 1.3 66.1 + - - +
159A ASP* 3.6 4.9 + - - +
160A ARG* 3.3 22.4 + - + +
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Residues in contact with ILE 157 (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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121A LEU* 5.1 1.8 - - + -
124A LEU* 3.8 35.7 - - + +
128A ALA 5.1 0.7 - - - +
129A ALA* 5.1 4.5 - - - +
132A ALA* 3.5 24.2 - - + -
133A LEU* 6.2 1.3 - - + -
153A CYS* 3.0 26.6 + - - +
154A LEU* 3.2 21.1 + - + +
156A THR* 1.3 79.0 - - - +
158A TYR* 1.3 71.5 + - + +
160A ARG* 3.4 4.7 + - - +
161A LEU* 3.0 48.6 + - + +
199A PHE* 4.9 2.9 - - + -
203A ILE* 4.7 11.7 - - + -
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Residues in contact with TYR 158 (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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119A LEU* 2.7 31.0 + - - +
120A CYS* 4.2 6.1 - - + -
121A LEU* 3.6 14.5 - - + +
154A LEU* 2.8 38.0 + - + +
157A ILE* 1.3 74.6 - - + +
159A ASP* 1.3 64.9 + - - +
161A LEU* 3.3 20.3 + - + +
162A GLU* 2.8 24.8 + - - +
169A VAL* 3.8 12.3 - - + +
171A VAL* 3.8 20.0 - - + -
174A CYS* 3.5 41.6 + - + -
175A VAL* 3.9 11.9 - - + -
178A CYS* 3.5 31.6 - - + +
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Residues in contact with ASP 159 (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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52A PHE* 5.6 0.7 - - - -
155A THR* 2.7 39.9 + - - +
156A THR* 4.0 5.9 - - - +
158A TYR* 1.3 72.7 - - - +
160A ARG* 1.3 57.1 + - - +
162A GLU* 3.3 4.8 + - - +
163A GLN* 2.9 34.5 + - - +
171A VAL* 3.6 23.4 - - - +
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Residues in contact with ARG 160 (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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124A LEU* 6.4 0.4 - - - -
125A SER* 5.3 0.4 + - - -
127A SER* 5.2 2.0 + - - -
128A ALA* 3.5 31.6 + - - +
131A ASP* 2.6 41.2 + - - +
156A THR* 3.3 11.4 + - + +
157A ILE* 3.6 9.6 - - - +
158A TYR 3.3 0.4 - - - -
159A ASP* 1.3 77.6 - - - +
161A LEU* 1.3 67.6 + - - +
163A GLN* 3.1 19.8 + - + +
164A GLU* 3.1 60.2 + - + +
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Residues in contact with LEU 161 (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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120A CYS* 4.0 18.8 - - + +
121A LEU* 5.6 0.2 - - + -
123A LEU* 3.5 33.0 - - + +
124A LEU* 4.3 17.0 - - + -
128A ALA* 6.0 1.6 - - + -
157A ILE* 3.0 36.3 + - + +
158A TYR* 3.3 21.5 + - + +
160A ARG* 1.3 76.7 - - + +
162A GLU* 1.3 63.2 + - - +
164A GLU* 3.1 17.4 + - - +
165A HIS* 3.0 34.4 + - + +
169A VAL* 4.0 15.3 - - + -
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Residues in contact with GLU 162 (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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158A TYR 2.8 17.8 + - - +
159A ASP* 3.4 6.8 - - - +
161A LEU* 1.3 76.5 - - - +
163A GLN* 1.3 65.0 + - - +
165A HIS 3.0 23.3 - - - +
167A ASN* 5.8 2.5 - - - +
169A VAL* 3.2 32.7 - - + +
171A VAL* 3.6 21.0 + - + +
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Residues in contact with GLN 163 (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 ASP* 2.9 16.9 + - - +
160A ARG* 3.1 29.1 + - + +
162A GLU* 1.3 82.8 + - - +
164A GLU* 1.3 62.2 + - + +
165A HIS 3.6 0.2 - - - -
166A ASN* 5.7 0.7 - - - +
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Residues in contact with GLU 164 (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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123A LEU 5.4 0.3 - - - +
128A ALA* 5.8 0.9 - - - +
160A ARG* 3.1 52.7 + - + +
161A LEU* 3.7 21.4 - - - +
163A GLN* 1.3 83.7 - - + +
165A HIS* 1.3 75.9 + - + +
166A ASN* 5.1 2.2 - - - -
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Residues in contact with HIS 165 (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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123A LEU* 4.0 42.5 + - + +
161A LEU* 3.0 33.3 + - + +
162A GLU* 3.0 21.1 + - - +
163A GLN 3.6 0.6 - - - -
164A GLU* 1.3 94.8 + - + +
166A ASN* 1.3 63.4 + - - +
167A ASN 3.2 7.5 + - - -
168A LEU* 4.0 31.8 + - + +
169A VAL* 4.6 4.1 + - + -
208A LYS* 6.3 0.9 - - - -
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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