Contacts of the helix formed by residues 217 - 225 (chain B) in PDB entry 2OZK
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 ALA 217 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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216B LEU* 1.3 73.0 - - - +
218B MET* 1.3 68.2 + - - +
219B ASP* 3.0 20.5 + - - +
220B GLU* 2.8 24.4 + - - +
221B PHE* 2.8 22.2 + - - +
256B LYS* 5.1 1.3 - - - +
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Residues in contact with MET 218 (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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213B PHE* 4.3 15.7 - - - -
216B LEU 4.1 1.2 + - - -
217B ALA* 1.3 71.6 - - - +
219B ASP* 1.3 58.1 + - - +
221B PHE* 3.2 7.4 + - - +
222B ILE* 2.8 44.3 + - + +
232B PHE* 3.5 39.0 - - + -
233B GLU* 3.6 43.5 - - + +
236B VAL* 4.9 2.5 - - - -
237B TYR* 4.3 24.5 - - + +
256B LYS* 4.8 8.3 - - - +
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Residues in contact with ASP 219 (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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217B ALA* 3.3 18.7 - - - +
218B MET* 1.3 74.0 + - - +
220B GLU* 1.3 73.5 + - - +
221B PHE 3.1 0.9 - - - -
222B ILE* 3.1 30.4 - - + +
223B GLN* 3.5 9.4 + - - +
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Residues in contact with GLU 220 (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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216B LEU* 3.8 25.6 - - + +
217B ALA* 2.8 39.6 + - + +
219B ASP* 1.3 83.0 + - - +
221B PHE* 1.3 62.6 + - - +
223B GLN* 3.4 11.7 + - - +
224B ARG* 3.0 25.2 + - - +
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Residues in contact with PHE 221 (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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209B MET* 3.7 17.9 - - + -
212B ASP* 4.4 3.6 - - - -
213B PHE* 3.6 38.6 - + + +
216B LEU* 4.1 11.6 - - + +
217B ALA 2.8 13.0 + - - +
218B MET* 3.2 13.7 - - - +
219B ASP 3.1 0.2 - - - -
220B GLU* 1.3 71.9 - - - +
222B ILE* 1.3 69.5 + - - +
223B GLN 2.8 3.6 + - - -
224B ARG* 3.0 13.1 + - - +
225B TYR* 3.2 44.2 + + + +
227B LEU* 4.2 10.3 - - + -
232B PHE* 3.3 41.1 - + - -
299B LEU* 3.7 20.9 - - + -
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Residues in contact with ILE 222 (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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218B MET* 2.8 43.5 + - + +
219B ASP* 3.1 32.1 - - + +
221B PHE* 1.3 73.9 - - - +
223B GLN* 1.3 60.5 + - + +
226B LYS 3.2 4.2 + - - -
227B LEU* 2.7 45.4 + - + +
228B GLU* 4.0 23.9 + - + +
232B PHE* 4.2 19.1 - - + -
233B GLU* 5.2 0.7 - - + +
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Residues in contact with GLN 223 (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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219B ASP 3.7 10.2 + - - +
220B GLU* 3.4 14.1 + - - +
221B PHE 2.8 5.3 + - - -
222B ILE* 1.3 77.6 - - + +
224B ARG* 1.3 60.6 + - - +
225B TYR 3.0 1.3 - - - -
226B LYS* 2.7 30.7 + - - +
228B GLU* 4.0 14.8 - - - +
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Residues in contact with ARG 224 (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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212B ASP* 3.2 26.7 + - - +
216B LEU* 3.2 39.2 - - + +
220B GLU* 3.0 18.2 + - - +
221B PHE* 3.6 6.3 - - - +
223B GLN* 1.3 78.8 - - - +
225B TYR* 1.3 79.1 + - + +
226B LYS* 3.8 9.5 + - - +
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Residues in contact with TYR 225 (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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208B GLN* 3.7 6.9 + - - +
209B MET* 3.4 47.2 + - + -
212B ASP* 3.1 37.9 + - - -
221B PHE* 3.2 34.2 + + + +
222B ILE 3.9 0.2 - - - -
223B GLN 3.0 0.6 - - - -
224B ARG* 1.3 100.9 + - + +
226B LYS* 1.3 75.5 + - - +
227B LEU* 3.4 25.5 - - + +
303B VAL* 6.1 0.7 - - + -
307B LYS* 4.0 8.1 + - - -
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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