Contacts of the helix formed by residues 155 - 174 (chain A) in PDB entry 1QZG
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 GLY 155 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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154A THR* 1.3 77.8 + - - +
156A ASP* 1.3 63.7 + - - -
157A LYS 3.5 2.7 - - - -
158A GLU* 3.2 13.6 - - - +
159A GLU* 3.2 24.0 + - - +
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Residues in contact with ASP 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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155A GLY* 1.3 70.8 - - - -
157A LYS* 1.3 60.7 + - - +
159A GLU* 3.7 12.0 - - - +
160A GLN* 2.5 69.3 + - + +
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Residues in contact with LYS 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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6A ILE* 5.3 2.6 - - - +
22A ILE* 4.5 13.3 - - + +
23A GLY* 5.2 6.7 - - - +
155A GLY 3.5 0.4 - - - -
156A ASP* 1.3 77.2 - - - +
158A GLU* 1.3 74.0 + - - +
160A GLN* 3.4 6.9 + - - +
161A PHE* 3.2 21.5 + - - +
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Residues in contact with GLU 158 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
22A ILE* 4.4 17.7 - - + +
23A GLY* 5.1 6.7 - - - -
46A PHE* 3.5 13.1 - - + -
106A LEU* 4.7 7.9 - - + +
132A TRP* 3.9 19.0 - - + -
152A MET* 6.1 0.9 - - - +
153A LYS 5.3 0.5 - - - +
154A THR* 3.3 18.6 - - + +
155A GLY* 3.2 34.1 + - - +
157A LYS* 1.3 89.4 + - - +
159A GLU* 1.3 56.1 + - - +
161A PHE* 3.4 7.7 + - - +
162A ALA* 2.9 29.5 + - - +
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Residues in contact with GLU 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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132A TRP* 2.8 37.4 + - - +
133A PRO* 5.6 0.2 - - - +
135A PHE* 3.8 16.1 - - - -
154A THR* 5.1 2.3 + - - -
155A GLY 3.2 18.4 + - - +
156A ASP* 3.1 20.6 + - - +
158A GLU* 1.3 79.5 - - - +
160A GLN* 1.3 57.9 + - - +
162A ALA* 3.4 2.8 + - - +
163A LEU* 2.9 43.2 + - + +
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Residues in contact with GLN 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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5A VAL* 5.3 17.0 - - + +
6A ILE* 4.4 18.8 - - + +
156A ASP* 2.5 54.5 + - + +
157A LYS* 3.8 7.0 - - - +
159A GLU* 1.3 72.5 - - - +
161A PHE* 1.3 68.2 + - - +
163A LEU* 2.9 26.3 + - - +
164A LEU* 2.8 36.4 + - + +
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Residues in contact with PHE 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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6A ILE* 4.0 20.1 - - + +
11A LEU* 3.2 30.9 - - + +
14A LEU* 4.5 11.9 - - + -
15A LEU* 4.4 4.5 - - + -
20A TYR* 3.3 39.7 - + - -
22A ILE* 3.5 21.1 - - + -
46A PHE* 3.5 28.3 - + + -
157A LYS 3.2 10.9 + - - +
158A GLU* 3.5 9.6 - - - +
159A GLU 3.3 0.2 - - - -
160A GLN* 1.3 80.0 - - - +
162A ALA* 1.3 56.4 + - - +
164A LEU* 3.4 4.0 + - - +
165A LEU* 2.9 58.3 + - + +
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Residues in contact with ALA 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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46A PHE* 4.0 7.4 - - + -
104A PRO* 3.6 21.0 - - + +
132A TRP* 3.7 35.7 - - + -
135A PHE* 4.0 3.6 - - + -
158A GLU 2.9 17.1 + - - +
159A GLU 3.6 5.4 - - - +
161A PHE* 1.3 74.4 - - - +
163A LEU* 1.3 65.7 + - - +
165A LEU* 3.3 2.5 + - - +
166A ASN* 3.0 26.2 + - - +
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Residues in contact with LEU 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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135A PHE* 3.6 45.5 - - + +
159A GLU* 2.9 24.2 + - + +
160A GLN* 2.9 33.2 - - - +
162A ALA* 1.3 75.7 - - - +
164A LEU* 1.3 63.0 + - + +
166A ASN* 3.5 2.6 + - - +
167A LYS* 3.0 28.5 + - - +
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Residues in contact with LEU 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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6A ILE* 3.6 29.2 - - + +
7A ASP* 3.2 37.0 - - - +
8A SER* 3.5 9.9 - - - +
11A LEU* 3.6 27.1 - - + -
160A GLN* 2.8 36.0 + - + +
161A PHE* 3.7 3.1 - - - +
163A LEU* 1.3 79.6 - - + +
165A LEU* 1.3 67.4 + - - +
167A LYS* 3.2 12.3 + - + +
168A ILE* 2.9 28.9 + - + +
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Residues in contact with LEU 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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11A LEU* 4.0 14.8 - - + +
15A LEU* 4.7 1.6 - - + -
46A PHE* 3.7 34.5 - - + +
47A GLY* 3.8 23.8 - - - +
48A ILE* 3.7 15.2 - - + +
72A TRP* 4.5 2.5 - - + -
73A ASP* 4.5 8.3 - - + -
74A PRO* 3.7 28.9 - - + -
104A PRO* 5.1 0.7 - - + -
161A PHE* 2.9 35.8 + - + +
162A ALA* 3.6 4.7 - - - +
164A LEU* 1.3 76.3 - - - +
166A ASN* 1.3 58.5 + - - +
168A ILE* 3.8 2.9 - - - +
169A TRP* 2.8 30.5 + - - +
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Residues in contact with ASN 166 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
48A ILE* 3.6 6.9 - - - +
102A GLY 2.8 22.2 + - - -
104A PRO* 4.0 5.8 - - + +
134A ASP* 2.8 25.0 + - - +
135A PHE* 3.4 23.6 - - + +
136A SER* 2.6 36.0 + - - -
162A ALA 3.0 17.2 + - - +
163A LEU 3.8 3.6 - - - +
165A LEU* 1.3 76.8 - - - +
167A LYS* 1.3 52.8 + - - +
169A TRP* 3.2 8.2 + - - +
170A ASP* 2.7 36.6 + - - +
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Residues in contact with LYS 167 (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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8A SER* 4.7 18.2 + - - +
136A SER* 4.3 8.1 - - - -
163A LEU 3.0 18.6 + - - +
164A LEU* 3.4 13.5 - - + +
166A ASN* 1.3 76.7 + - - +
168A ILE* 1.3 60.9 + - + +
170A ASP* 3.2 4.0 + - - +
171A GLU* 2.8 58.8 + - + +
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Residues in contact with ILE 168 (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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8A SER* 4.3 17.0 - - - -
11A LEU* 3.2 35.2 - - + -
12A ASN* 4.3 16.8 - - - +
72A TRP* 4.3 1.3 - - + -
74A PRO* 3.8 25.8 - - + -
164A LEU 2.9 16.0 + - - +
165A LEU 3.8 3.4 - - - +
167A LYS* 1.3 74.8 - - + +
169A TRP* 1.3 66.9 + - - +
171A GLU* 3.2 16.5 + - - +
172A GLN* 3.0 49.7 + - + +
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Residues in contact with TRP 169 (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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48A ILE* 3.7 22.7 - - + +
50A LYS* 4.6 15.0 - - + +
72A TRP* 3.8 32.2 - + + -
101A VAL* 3.5 32.9 - - + +
102A GLY* 3.5 27.6 - - - -
134A ASP* 3.9 17.0 - - - -
136A SER* 5.1 1.1 - - - -
165A LEU 2.8 18.1 + - - +
166A ASN* 3.4 13.5 - - - +
168A ILE* 1.3 77.1 - - - +
170A ASP* 1.3 83.7 + - + +
172A GLN* 3.2 1.3 + - - -
173A THR* 2.9 62.3 + - + +
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Residues in contact with ASP 170 (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 SER* 3.3 41.3 + - - +
166A ASN 2.7 13.8 + - - +
167A LYS* 3.5 4.9 - - - +
169A TRP* 1.3 81.0 - - + +
171A GLU* 1.3 62.0 + - + +
173A THR* 3.6 8.5 + - - -
174A ASN* 2.6 49.8 + - - +
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Residues in contact with GLU 171 (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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8A SER* 6.1 0.5 - - - -
167A LYS* 2.8 54.7 + - + +
168A ILE* 3.2 17.6 + - - +
170A ASP* 1.3 75.6 - - + +
172A GLN* 1.3 63.2 + - + +
173A THR 3.5 0.3 + - - -
174A ASN* 4.3 8.8 + - - +
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Residues in contact with GLN 172 (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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72A TRP* 3.5 23.4 - - + -
74A PRO* 4.8 8.7 + - - +
76A CYS 5.2 2.4 - - - +
77A ASP* 5.7 0.2 - - - -
78A THR* 4.3 27.0 + - - -
168A ILE* 3.0 40.4 + - + +
169A TRP* 3.8 5.2 - - - +
171A GLU* 1.3 80.8 - - + +
173A THR* 1.3 62.0 + - + +
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Residues in contact with THR 173 (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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50A LYS* 5.2 10.5 - - - +
72A TRP* 6.3 0.9 - - + -
78A THR* 5.7 3.6 - - - -
169A TRP* 2.9 58.5 + - + +
170A ASP* 3.4 9.5 + - - -
172A GLN* 1.3 84.6 - - + +
174A ASN* 1.3 74.2 + - - +
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Residues in contact with ASN 174 (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 ASP* 2.6 39.0 + - - +
171A GLU* 4.3 8.4 + - - +
173A THR* 1.3 81.3 + - - +
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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
------------------------------------------------------------
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