Contacts of the strand formed by residues 203 - 207 (chain A) in PDB entry 1KYZ
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* 3.5 9.9 - - - +
202A LYS* 1.3 84.2 - - - +
204A LEU* 1.3 64.9 + - - +
225A ILE* 3.7 5.8 - - - -
226A LYS* 3.3 20.4 - - - -
228A ILE* 5.7 4.5 - - - -
258A LYS 5.0 0.4 + - - -
259A ALA* 3.6 12.3 - - - -
260A ASP* 3.3 39.6 + - - +
261A ALA 4.0 3.5 + - - -
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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
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198A PHE* 4.0 13.5 - - + -
201A LEU* 4.6 8.7 - - + -
203A SER* 1.3 78.3 - - - +
205A VAL* 1.3 61.1 + - - +
215A ILE* 3.8 11.7 - - + +
218A ILE* 3.7 43.1 - - + -
225A ILE* 3.7 14.1 - - + +
226A LYS 3.4 4.1 + - - +
227A GLY* 3.2 3.3 - - - -
228A ILE* 2.8 26.3 + - - -
259A ALA* 4.2 2.9 - - - -
261A ALA* 3.0 43.7 - - + +
262A VAL 3.9 14.6 - - - +
263A PHE* 3.9 9.4 - - + +
294A ILE* 4.6 4.5 - - + -
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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 74.8 - - - +
206A ASP* 1.3 62.6 + - - +
207A VAL 4.6 0.9 - - - +
228A ILE* 3.6 14.8 - - + +
230A PHE* 3.7 27.8 - - + -
256A ILE* 4.1 14.1 - - + -
257A PRO* 3.7 28.7 - - + +
259A ALA* 4.0 8.8 - - + +
261A ALA 3.2 6.7 + - - +
262A VAL* 3.4 34.5 - - + +
263A PHE 2.9 21.9 + - - +
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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 1.2 + - - -
205A VAL* 1.3 69.9 - - - +
207A VAL* 1.3 63.6 + - - +
209A GLY* 3.2 31.3 + - - -
214A VAL* 3.7 23.1 - - - +
215A ILE* 4.2 22.8 + - + +
218A ILE* 5.9 0.4 - - + -
228A ILE 2.9 13.8 + - - +
229A ASN* 4.7 1.1 + - - -
230A PHE 3.3 21.2 + - - -
263A PHE* 3.0 41.0 - - + +
264A MET 3.7 6.6 - - - +
1698A SAH 4.0 3.8 + - - -
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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* 4.4 1.6 - - + +
206A ASP* 1.3 71.0 - - - +
208A GLY* 1.3 65.3 + - - +
230A PHE* 4.0 10.3 - - + -
252A MET* 3.6 46.4 - - + -
256A ILE* 3.9 27.6 - - + -
262A VAL* 3.3 29.6 - - + -
263A PHE 2.9 7.3 + - - +
264A MET* 3.6 18.9 - - + +
267A ILE* 3.4 21.0 - - + +
283A CYS* 4.7 1.1 - - - -
1698A SAH 3.8 1.5 + - + -
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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