Contacts of the helix formed by residues 162 - 174 (chain A) in PDB entry 2FG8
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 GLU 162 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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158A LEU 3.5 7.3 - - - +
159A GLY 4.1 6.1 - - - +
160A GLY* 3.2 4.6 - - - -
161A PRO* 1.3 89.8 - - + +
163A ALA* 1.3 56.2 + - - +
164A GLY 3.6 1.1 - - - -
165A LEU* 3.3 30.1 - - + +
166A GLY* 2.9 22.8 + - - -
161E PRO* 4.6 13.4 - - - +
162E GLU* 2.9 39.5 - - + +
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Residues in contact with ALA 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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95A LYS* 5.6 10.5 - - + +
158A LEU 4.1 4.9 - - - +
159A GLY* 5.0 0.7 - - - -
160A GLY* 3.4 23.9 - - - +
161A PRO 2.9 8.5 + - - +
162A GLU* 1.3 72.7 - - - +
164A GLY* 1.3 67.9 + - - +
166A GLY* 3.1 3.6 + - - -
167A GLU* 2.9 23.1 + - - +
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Residues in contact with GLY 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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161A PRO 4.9 0.6 + - - -
163A ALA* 1.3 78.1 - - - +
165A LEU* 1.3 63.3 + - - +
167A GLU* 2.9 11.2 + - - +
168A TYR* 2.9 21.7 + - - +
157E ARG* 3.5 37.0 - - - +
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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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162A GLU* 3.3 45.9 - - + +
164A GLY* 1.3 74.4 - - - +
166A GLY* 1.3 62.4 + - - +
168A TYR* 3.4 2.1 + - - +
169A LEU* 3.1 32.5 + - + +
157E ARG 3.8 6.3 + - - +
158E LEU* 3.8 23.3 - - + -
162E GLU* 4.9 3.1 - - + +
165E LEU* 4.2 21.8 - - + -
166E GLY* 5.3 3.1 - - - -
169E LEU* 3.6 30.3 - - + -
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Residues in contact with GLY 166 (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 LEU* 5.5 0.7 - - - -
158A LEU* 3.8 34.7 - - - +
162A GLU 2.9 17.4 + - - -
163A ALA 3.5 3.6 - - - -
165A LEU* 1.3 76.4 - - - +
167A GLU* 1.3 65.5 + - - +
169A LEU* 4.6 3.4 - - - -
170A PHE* 3.0 25.5 + - - +
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Residues in contact with GLU 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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41A PHE* 4.8 0.2 - - - -
48A LEU* 3.6 19.5 - - + +
95A LYS* 3.3 25.6 - - - +
96A THR* 2.5 50.2 + - - +
97A PRO* 4.8 2.9 - - + -
155A LEU* 4.8 7.9 - - + -
163A ALA 2.9 12.9 + - - +
164A GLY* 2.9 12.5 + - - +
166A GLY* 1.3 77.2 - - - +
168A TYR* 1.3 62.9 + - - +
170A PHE* 3.4 7.7 + - + +
171A GLU* 3.2 23.0 + - - +
157E ARG* 4.0 16.0 + - - +
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Residues in contact with TYR 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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48A LEU* 4.8 2.9 - - - -
164A GLY 2.9 10.9 + - - +
165A LEU 3.5 7.4 - - - +
167A GLU* 1.3 77.2 - - - +
169A LEU* 1.3 78.2 + - + +
171A GLU* 2.9 11.5 + - - +
172A ARG* 2.9 45.0 + - + +
154E ASN* 3.6 26.0 - - + -
157E ARG* 4.5 9.6 - - - +
158E LEU* 3.7 42.4 - - + -
169E LEU* 3.2 34.3 + - + -
170E PHE* 3.3 11.9 - + - -
173E LEU* 3.5 8.3 - - + +
174E THR* 3.0 27.2 + - - -
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Residues in contact with LEU 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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158A LEU* 5.4 10.1 - - + -
165A LEU* 3.1 35.3 + - + +
166A GLY* 4.0 6.7 - - - +
168A TYR* 1.3 85.7 - - + +
170A PHE* 1.3 56.5 + - - +
172A ARG* 4.3 2.9 - - - -
173A LEU* 2.8 49.5 + - + +
169E LEU* 3.7 25.1 - - + -
173E LEU* 3.9 24.2 - - + -
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Residues in contact with PHE 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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96A THR* 4.6 6.3 - - + -
100A MET* 4.9 2.2 - - + -
151A HIS* 3.1 40.8 - + + -
154A ASN* 3.9 25.6 - - + -
155A LEU* 3.6 38.6 - - + -
158A LEU* 4.9 10.7 - - + +
166A GLY 3.0 19.0 + - - +
167A GLU 3.6 5.2 - - - +
168A TYR 3.1 0.2 - - - -
169A LEU* 1.3 78.8 - - - +
171A GLU* 1.3 57.5 + - - +
174A THR* 3.0 50.5 + - + +
175A LEU* 3.2 34.1 + - + -
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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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48A LEU* 4.0 23.7 - - + +
49A GLU 3.6 8.4 + - - -
50A GLY* 2.5 40.1 + - - +
51A VAL* 3.8 10.3 - - + +
167A GLU 3.2 8.8 + - - +
168A TYR* 2.9 10.1 + - - +
170A PHE* 1.3 78.8 - - - +
172A ARG* 1.3 101.5 + - - +
175A LEU* 3.9 12.3 - - + -
176A LYS* 2.7 30.8 + - - -
177A HIS 4.9 0.9 + - - -
154E ASN* 5.3 1.2 - - - +
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Residues in contact with ARG 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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49A GLU* 4.4 15.8 + - - +
168A TYR* 2.9 54.9 + - + +
169A LEU* 3.9 4.7 - - - +
171A GLU* 1.3 112.3 + - - +
173A LEU* 1.3 72.6 + - + +
176A LYS* 2.9 25.5 - - - +
177A HIS* 4.6 18.4 - - - +
173E LEU* 2.8 45.3 + - + -
174E THR* 3.4 18.5 + - - +
176E LYS* 4.1 10.5 - - - +
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Residues in contact with LEU 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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169A LEU* 2.8 47.2 + - + +
170A PHE* 5.3 0.2 - - - -
172A ARG* 1.3 89.0 - - + +
174A THR* 1.3 61.4 + - - +
176A LYS* 3.8 14.0 + - - +
173E LEU* 4.2 18.2 - - + -
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Residues in contact with THR 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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151A HIS* 3.6 24.0 - - + +
154A ASN* 5.6 2.3 + - - -
170A PHE* 3.0 45.4 + - + -
172A ARG 3.5 0.2 - - - -
173A LEU* 1.3 83.2 + - - +
175A LEU* 1.3 63.2 + - - +
176A LYS* 3.1 20.6 - - - +
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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