Contacts of the helix formed by residues 165 - 173 (chain A) in PDB entry 2UYO
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 ASP 165 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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160A ILE* 3.8 14.1 - - - +
164A GLN* 1.3 72.6 + - - +
166A TRP* 1.3 61.5 + - - +
167A PRO* 3.4 10.5 - - - +
168A PRO* 3.3 37.5 - - + +
169A ALA 4.5 0.9 + - - -
203A GLU* 5.2 4.2 - - - +
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Residues in contact with TRP 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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109A LEU* 4.6 2.7 - - + -
131A ILE* 3.8 19.3 - - + -
158A VAL* 4.9 0.3 - - - +
160A ILE* 3.6 30.2 - - + +
161A ASP 4.3 3.6 - - - +
162A LEU* 3.2 45.3 + - + +
164A GLN 2.9 12.9 + - - +
165A ASP* 1.3 72.9 - - - +
167A PRO* 1.4 80.9 - - + +
169A ALA* 3.0 13.5 + - - +
170A LEU* 3.1 25.3 + - + +
183A TRP* 3.9 9.9 - + - -
200A LEU* 3.8 25.2 - - + +
203A GLU* 3.7 23.6 - - + +
204A ILE* 3.9 20.6 - - + -
207A LEU* 3.7 29.6 - - + -
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Residues in contact with PRO 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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165A ASP* 3.4 15.9 - - - +
166A TRP* 1.4 107.0 - - + +
168A PRO* 1.4 65.3 - - + +
170A LEU* 3.1 4.0 + - + +
171A ARG* 2.9 31.8 + - - +
203A GLU* 3.5 41.1 - - + +
207A LEU* 3.9 24.0 - - + +
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Residues in contact with PRO 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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165A ASP* 3.3 43.1 - - + +
167A PRO* 1.4 91.7 - - + +
169A ALA* 1.3 54.9 + - - +
171A ARG* 3.6 12.5 - - + +
172A SER* 2.8 30.8 + - - -
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Residues in contact with ALA 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 VAL* 3.6 23.2 - - + +
159A PRO* 5.4 2.2 - - + +
160A ILE* 3.9 29.8 - - + -
166A TRP 3.0 10.2 + - - +
168A PRO* 1.3 77.5 - - - +
170A LEU* 1.3 64.6 + - - +
172A SER* 2.9 19.9 + - - -
173A ALA* 3.2 10.2 + - - +
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Residues in contact with LEU 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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107A VAL* 4.4 1.6 - - + -
129A TYR* 3.7 33.7 - - + -
131A ILE* 4.3 10.8 - - + -
158A VAL* 3.7 12.9 - - + +
166A TRP* 3.1 28.5 + - + +
167A PRO 3.1 8.9 + - - +
169A ALA* 1.3 75.6 - - - +
171A ARG* 1.3 64.7 + - + +
173A ALA* 3.2 11.1 + - - +
175A PHE* 3.3 49.9 + - + +
183A TRP* 3.7 33.2 - - + -
207A LEU* 4.2 3.8 - - + -
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Residues in contact with ARG 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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167A PRO* 2.9 23.7 + - - +
168A PRO* 3.6 11.0 - - + +
170A LEU* 1.3 75.9 - - - +
172A SER* 1.3 58.2 + - - +
174A GLY* 2.9 22.3 + - - -
175A PHE* 3.7 14.5 + - + +
177A PRO* 3.3 34.7 - - + +
206A GLY 4.5 8.1 + - - -
207A LEU* 3.6 28.1 - - + +
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Residues in contact with SER 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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168A PRO 2.8 19.8 + - - -
169A ALA* 2.9 20.6 + - - -
171A ARG* 1.3 73.5 - - - +
173A ALA* 1.3 57.7 - - - +
174A GLY* 3.2 1.4 + - - -
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Residues in contact with ALA 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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129A TYR* 3.6 12.5 - - + -
156A ARG* 3.5 23.5 + - + +
157A GLU 4.3 9.2 - - - +
158A VAL* 3.9 22.2 - - + -
169A ALA 3.2 11.4 + - - +
170A LEU 3.2 10.2 + - - +
171A ARG 3.2 1.0 - - - -
172A SER* 1.3 75.9 + - - +
174A GLY* 1.3 56.2 + - - +
175A PHE 3.6 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