Contacts of the helix formed by residues 190 - 197 (chain F) in PDB entry 3FZ7
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 190 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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180F ILE* 4.9 0.4 - - - +
186F GLN* 3.4 29.6 + - + +
188F PHE 3.0 1.9 + - - +
189F MET* 1.3 73.5 - - - +
191F PRO* 1.3 74.6 - - + +
192F LYS* 3.3 12.5 + - - +
193F ARG* 2.7 61.1 + - - +
194F MET* 3.0 23.4 + - - +
223F LEU* 3.8 2.5 - - - -
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Residues in contact with PRO 191 (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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190F ASP* 1.3 88.4 - - + +
192F LYS* 1.3 64.1 + - - +
194F MET* 3.4 6.3 + - + +
195F ILE* 3.0 29.8 + - - +
222F PRO* 4.3 24.0 - - + +
223F LEU* 3.9 20.2 - - + -
226F ALA* 4.1 18.6 - - + -
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Residues in contact with LYS 192 (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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190F ASP* 3.3 9.6 + - - +
191F PRO* 1.3 80.7 - - - +
193F ARG* 1.3 66.5 + - + +
195F ILE* 3.1 7.3 + - - +
196F GLU* 3.1 43.6 + - + +
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Residues in contact with ARG 193 (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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180F ILE* 3.3 32.8 - - + +
181F PRO* 2.3 43.8 + - - +
183F ARG* 3.4 37.0 - - - +
186F GLN* 3.4 26.1 + - - +
188F PHE 3.2 26.3 + - - -
190F ASP* 2.7 35.1 + - - +
192F LYS* 1.3 73.2 - - + +
194F MET* 1.3 67.3 + - - +
196F GLU* 3.4 22.2 + - - +
197F ALA* 3.3 19.4 + - - +
414F GLU* 4.6 1.0 + - - -
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Residues in contact with MET 194 (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 VAL* 3.8 15.2 - - + +
180F ILE* 4.2 5.7 - - - +
189F MET* 3.9 18.6 - - + -
190F ASP 3.0 19.8 + - - +
191F PRO* 3.5 2.9 - - + +
193F ARG* 1.3 77.5 - - - +
195F ILE* 1.3 73.1 + - + +
197F ALA* 3.1 18.5 + - - +
198F CYS* 3.4 17.3 + - - -
205F VAL* 3.7 28.3 - - + -
223F LEU* 3.4 47.6 - - + +
226F ALA* 3.7 19.7 - - + -
227F LEU* 3.9 7.9 - - + -
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Residues in contact with ILE 195 (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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191F PRO 3.0 20.5 + - - +
192F LYS* 3.7 5.2 - - - +
194F MET* 1.3 79.6 - - + +
196F GLU* 1.3 66.9 + - + +
197F ALA 3.0 1.6 - - - -
198F CYS* 3.0 22.7 + - - +
226F ALA* 3.7 24.2 - - + +
227F LEU* 3.8 19.3 - - + -
230F PHE* 3.7 50.0 - - + -
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Residues in contact with GLU 196 (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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178F ARG* 5.5 0.3 + - - -
192F LYS* 3.1 43.7 + - + +
193F ARG* 3.7 24.6 - - - +
194F MET 3.4 0.4 - - - -
195F ILE* 1.3 77.2 - - - +
197F ALA* 1.3 61.0 + - + +
198F CYS 3.6 3.1 + - - +
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Residues in contact with ALA 197 (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 VAL* 3.6 22.8 - - + +
178F ARG* 2.9 46.5 + - + +
180F ILE* 4.1 10.5 - - + -
193F ARG 3.3 8.9 + - - +
194F MET 3.1 11.5 + - - +
195F ILE 3.0 1.0 - - - -
196F GLU* 1.3 80.7 - - - +
198F CYS* 1.3 54.7 + - - +
202F THR* 4.0 0.5 + - - -
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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