Contacts of the helix formed by residues 208 - 212 (chain A) in PDB entry 1F9O
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 PHE 208 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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164A PHE* 3.6 35.4 - + - -
192A ILE* 3.8 26.7 - - + -
193A PRO 3.5 12.3 - - - -
194A GLN* 3.6 23.1 - - + -
195A PRO* 3.6 15.7 - - + -
198A ASP* 3.1 10.6 + - - +
202A PHE* 3.5 20.4 - - + -
203A GLY* 3.7 13.7 - - - -
207A GLY* 1.3 76.6 - - - -
209A LEU* 1.3 65.5 + - - +
210A ASP* 3.5 2.2 - - - -
211A LEU* 3.1 36.3 + - + +
212A PHE* 3.4 11.7 - - + -
561A TRP* 4.4 2.2 - + - -
564A LYS 4.4 1.1 - - - -
565A MET* 3.9 14.6 - - - -
571A ILE* 4.0 7.4 - - + -
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Residues in contact with LEU 209 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
198A ASP* 3.6 19.3 - - + +
200A HIS* 3.4 24.5 - - + +
206A TYR 3.5 7.9 + - - +
208A PHE* 1.3 77.2 - - - +
210A ASP* 1.3 57.7 + - - +
211A LEU 3.1 5.1 + - - -
212A PHE* 3.2 16.0 + - + +
213A THR* 3.4 17.9 + - - +
219A PRO* 4.4 14.8 - - + -
220A ALA 3.4 25.6 - - - +
222A GLN* 3.8 30.5 - - + +
224A LYS* 4.1 22.4 - - + +
2B BGC 5.1 4.5 - - - +
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Residues in contact with ASP 210 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
122A PRO* 3.3 23.3 - - + +
206A TYR* 4.0 33.8 + - + +
207A GLY 4.3 0.7 - - - +
209A LEU* 1.3 73.3 + - - +
211A LEU* 1.3 60.8 + - - +
212A PHE 3.3 0.4 - - - -
213A THR 3.9 9.9 - - - +
214A LYS* 5.8 2.5 - - + -
219A PRO* 4.5 15.2 - - + +
558A PRO* 5.0 0.7 - - - +
561A TRP* 3.1 39.4 + - - -
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Residues in contact with LEU 211 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
121A TYR* 3.8 8.7 - - - +
122A PRO* 3.4 20.6 - - - +
182A ARG* 4.5 6.1 + - - +
192A ILE* 3.9 30.7 - - + -
208A PHE* 3.1 42.3 + - + +
209A LEU 3.1 0.8 - - - -
210A ASP* 1.3 79.4 + - - +
212A PHE* 1.3 74.8 + - + +
557A VAL* 4.7 0.9 - - + -
558A PRO* 3.5 30.8 - - + +
561A TRP* 3.6 41.5 - - + +
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Residues in contact with PHE 212 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
121A TYR* 3.7 13.4 - - + -
122A PRO* 3.3 3.7 - - - +
123A SER* 2.7 20.8 + - - -
179A THR 5.0 0.9 - - - -
181A GLN* 3.3 41.7 - - + +
182A ARG* 3.5 33.7 - - + -
186A GLU* 4.8 2.0 - - - -
192A ILE* 4.0 11.7 - - + -
194A GLN* 3.7 34.1 - - + -
208A PHE* 3.4 33.2 - - + -
209A LEU* 3.2 7.0 + - + +
211A LEU* 1.3 97.7 - - + +
213A THR* 1.3 69.2 + - + +
224A LYS* 6.2 0.9 - - - -
1B V3P 6.0 1.3 - - - -
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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
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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