Contacts of the helix formed by residues 203 - 211 (chain B) in PDB entry 2PY5
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 THR 203 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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199B LYS 2.7 20.8 + - - -
200B ASP* 4.1 7.4 - - - +
201B ILE 3.2 8.6 - - - +
202B ILE* 1.3 82.2 + - - +
204B THR* 1.3 60.2 + - - +
205B LYS* 3.8 7.6 + - - +
206B LYS* 3.3 15.9 + - - +
207B PHE* 2.8 28.5 + - - +
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Residues in contact with THR 204 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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199B LYS* 3.7 26.6 + - + +
203B THR* 1.3 73.0 - - - +
205B LYS* 1.3 63.7 + - - +
207B PHE* 3.3 7.9 + - + +
208B LYS* 3.0 56.3 + - + +
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Residues in contact with LYS 205 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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203B THR* 3.2 8.0 - - - +
204B THR* 1.3 81.2 - - - +
206B LYS* 1.3 62.0 + - - +
208B LYS* 3.4 15.3 + - - +
209B LYS* 3.4 12.5 + - - +
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Residues in contact with LYS 206 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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202B ILE* 3.2 44.8 - - + +
203B THR* 3.3 5.5 + - - +
205B LYS* 1.3 76.7 - - - +
207B PHE* 1.3 68.2 + - - +
209B LYS* 3.0 7.9 + - + +
210B VAL* 2.9 43.0 + - + +
359B LEU* 4.9 13.3 - - - +
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Residues in contact with PHE 207 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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195B LEU* 4.0 7.4 - - + -
198B PHE* 3.7 16.2 - + - -
199B LYS* 3.6 45.3 - - + -
202B ILE* 3.5 26.8 - - + +
203B THR 2.8 21.0 + - - +
204B THR* 3.3 11.4 + - + +
206B LYS* 1.3 73.5 - - - +
208B LYS* 1.3 62.5 + - + +
210B VAL* 4.8 0.2 - - - -
211B PHE* 2.8 66.0 + + + +
393B PHE* 4.3 4.0 - + - -
425B VAL* 4.1 26.9 - - + -
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Residues in contact with LYS 208 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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204B THR* 3.0 43.7 + - + +
205B LYS* 3.7 8.3 - - - +
206B LYS 3.2 0.2 - - - -
207B PHE* 1.3 82.7 - - + +
209B LYS* 1.3 60.4 + - - +
211B PHE 4.3 4.3 - - - -
212B PRO* 3.6 23.4 - - - +
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Residues in contact with LYS 209 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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205B LYS 3.4 9.2 + - - +
206B LYS* 3.0 11.1 + - - +
208B LYS* 1.3 81.1 - - - +
210B VAL* 1.3 66.2 + - + +
212B PRO* 3.7 9.7 - - - +
265B TYR* 5.6 0.3 - - - -
266B GLY* 4.7 4.2 - - - -
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Residues in contact with VAL 210 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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202B ILE* 5.6 1.6 - - + -
206B LYS* 2.9 45.5 + - + +
207B PHE* 4.2 1.8 - - - +
209B LYS* 1.3 81.1 - - + +
211B PHE* 1.3 82.4 + - + +
212B PRO* 3.2 0.8 - - - +
265B TYR* 3.5 31.6 - - + +
266B GLY 2.8 27.9 + - - -
359B LEU* 3.9 16.4 - - + -
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Residues in contact with PHE 211 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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198B PHE* 3.7 31.2 - + - -
202B ILE* 4.2 4.3 - - + -
207B PHE* 2.8 57.6 + + + +
208B LYS* 3.7 7.9 - - - +
210B VAL* 1.3 96.0 - - + +
212B PRO* 1.3 66.9 - - - +
213B THR* 3.8 1.4 + - - -
264B PRO 4.3 3.4 - - - -
359B LEU* 3.9 17.3 - - + -
360B PHE* 4.9 0.4 - + - -
393B PHE* 4.1 9.6 - + - -
425B VAL 4.2 5.5 - - - +
426B TYR* 3.5 36.6 - + + -
429B MET* 3.9 29.2 - - + -
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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