Contacts of the strand formed by residues 203 - 207 (chain A) in PDB entry 4E70
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 SER 203 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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201A LEU* 3.6 3.6 - - - +
202A SER* 1.3 82.5 - - - +
204A LEU* 1.3 61.7 + - - +
225A ILE* 3.8 6.3 - - - +
226A HIS* 3.2 20.4 - - - -
260A HIS 5.1 2.0 - - - -
261A ALA* 3.3 13.3 - - - -
262A ASP* 2.9 49.1 + - - +
263A ALA* 3.3 9.4 + - - +
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Residues in contact with LEU 204 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
198A PHE* 4.1 28.5 - - + -
201A LEU* 4.6 3.4 - - + -
203A SER* 1.3 78.3 - - - +
205A VAL* 1.3 76.7 + - - +
206A ASP* 4.0 13.5 - - + +
215A SER* 4.3 8.7 - - - +
218A ILE* 4.2 13.7 - - + -
225A ILE* 3.8 14.1 - - + -
226A HIS 3.0 6.0 + - - +
227A CYS* 3.4 7.6 - - - -
228A THR* 2.9 26.0 + - - -
261A ALA* 3.7 3.6 - - - -
263A ALA* 3.3 24.9 - - + +
265A LEU* 4.1 17.9 - - + -
299A MET* 4.2 9.0 - - - -
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Residues in contact with VAL 205 (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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204A LEU* 1.3 74.5 - - - +
206A ASP* 1.3 58.7 + - - +
207A VAL* 3.5 8.4 + - + +
228A THR* 3.2 13.9 - - - +
230A PHE* 3.9 24.7 - - + -
258A ILE* 4.1 5.6 - - + -
259A PRO* 3.6 42.4 - - + +
260A HIS 5.3 0.2 - - - +
261A ALA* 3.6 8.4 - - + +
263A ALA 2.9 17.8 + - - +
264A VAL* 3.8 20.0 - - + -
265A LEU* 2.8 32.7 + - - +
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Residues in contact with ASP 206 (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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204A LEU* 4.0 6.9 - - + +
205A VAL* 1.3 70.1 - - - +
207A VAL* 1.3 60.9 + - - +
208A GLY 4.5 0.3 - - - -
209A GLY* 3.1 34.2 + - - +
214A THR* 3.6 10.5 + - - -
215A SER* 2.8 42.9 + - - +
228A THR 2.8 12.2 + - - +
229A VAL* 3.6 5.7 - - + +
230A PHE 3.1 19.8 + - - -
265A LEU* 3.8 23.5 - - - +
267A LYS* 4.9 6.9 - - - +
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Residues in contact with VAL 207 (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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205A VAL* 4.1 9.6 - - + +
206A ASP* 1.3 71.4 - - - +
208A GLY* 1.3 62.0 + - - +
230A PHE* 3.7 13.9 - - + -
253A MET* 3.8 30.3 - - + -
258A ILE* 3.7 29.2 - - + -
264A VAL* 3.8 21.3 - - + -
265A LEU 2.9 16.6 + - - +
266A PHE* 3.5 31.2 - - + -
267A LYS 4.6 0.7 + - - -
269A VAL* 3.4 17.2 - - - +
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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