Contacts of the helix formed by residues 163 - 167 (chain F) in PDB entry 4OMC
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 LEU 163 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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156F ILE* 4.1 21.5 - - + -
157F GLU 3.6 20.6 - - - +
158F LYS* 4.3 3.6 - - - +
160F HIS* 2.9 16.2 + - + +
162F ASP* 1.3 89.1 - - - +
164F ALA* 1.3 68.2 + - - +
165F GLY 3.2 2.7 - - - -
166F ASN* 2.8 17.5 + - - +
167F TYR* 2.9 12.3 + - + +
196F THR* 4.1 17.5 - - + -
199F ALA* 4.2 12.3 - - + +
200F GLY* 3.9 27.4 - - - +
203F ALA 4.5 5.2 - - - +
204F ALA* 4.3 6.1 - - - -
205F VAL* 4.5 1.3 - - - -
221F ILE* 4.5 10.6 - - + +
354F THR* 4.1 8.7 - - + +
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Residues in contact with ALA 164 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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158F LYS 3.3 19.2 + - - +
159F ASN* 4.4 9.0 - - - +
160F HIS 2.8 19.7 + - - +
161F PRO* 4.6 4.5 - - + +
163F LEU* 1.3 71.2 - - - +
165F GLY* 1.3 63.8 + - - +
166F ASN 3.1 1.2 + - - -
167F TYR* 3.2 17.5 + - - +
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Residues in contact with GLY 165 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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161F PRO 5.2 2.0 + - - -
163F LEU 3.0 1.8 + - - -
164F ALA* 1.3 78.3 - - - +
166F ASN* 1.3 66.2 + - - +
167F TYR 5.3 0.4 - - - +
205F VAL* 4.2 14.4 - - - +
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Residues in contact with ASN 166 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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163F LEU 2.8 10.8 + - - +
165F GLY* 1.3 79.8 - - - +
167F TYR* 1.3 67.9 + - - +
203F ALA 2.9 22.6 + - - +
205F VAL* 3.9 15.0 - - - +
217F TYR 2.9 30.9 + - - +
218F ASN* 4.5 5.9 - - - +
219F ALA 3.3 20.9 + - - +
220F ARG* 3.3 11.4 - - - +
221F ILE* 2.9 32.4 + - + -
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Residues in contact with TYR 167 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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156F ILE* 4.2 22.2 - - + -
158F LYS* 3.6 52.8 - - + +
163F LEU* 2.9 12.0 + - + +
164F ALA 3.2 15.3 + - - +
165F GLY 5.3 0.3 - - - +
166F ASN* 1.3 80.5 - - - +
168F ASP* 1.3 61.6 + - - +
169F PRO* 3.7 34.1 - - + +
172F SER* 3.2 38.4 + - - -
180F PRO 4.7 1.2 + - - -
182F PRO* 3.3 16.8 - - - +
220F ARG* 5.8 0.2 - - - +
221F ILE* 3.3 12.5 - - + +
222F GLY* 4.5 0.7 - - - -
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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