Contacts of the helix formed by residues 212 - 222 (chain O) in PDB entry 3L73
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 LYS 212 (chain O).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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22O GLU* 6.0 1.6 - - - +
37O SER* 3.9 0.2 - - - -
39O GLU* 4.6 11.6 + - + +
113O ARG* 5.7 0.2 - - - +
211O VAL* 1.3 72.7 - - - +
213O HIS* 1.3 69.0 + - + +
214O SER* 3.4 28.4 + - - +
215O ASP* 3.0 34.0 + - - +
216O LEU* 3.3 10.2 + - - +
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Residues in contact with HIS 213 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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25O GLU* 3.6 40.7 + - + +
26O ILE* 3.5 16.8 + - - -
27O THR* 3.0 29.8 + - - -
35O ILE* 2.9 36.4 + - + +
37O SER* 2.7 40.3 + - - +
212O LYS* 1.3 74.8 - - + +
214O SER* 1.3 64.2 + - - +
216O LEU* 3.5 2.6 + - - +
217O LYS* 3.0 33.3 + - + +
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Residues in contact with SER 214 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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212O LYS* 3.4 33.1 + - - +
213O HIS* 1.3 79.6 - - - +
215O ASP* 1.3 65.3 + - - +
217O LYS* 3.4 9.6 - - - +
218O GLN* 2.9 29.5 + - - +
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Residues in contact with ASP 215 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
211O VAL* 5.7 2.7 - - + -
212O LYS* 3.0 35.9 + - - +
214O SER* 1.3 82.7 + - - +
216O LEU* 1.3 65.0 + - - +
217O LYS 3.0 1.7 + - - -
218O GLN* 3.3 13.5 + - - +
219O VAL* 2.9 29.8 + - + +
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Residues in contact with LEU 216 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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35O ILE* 4.2 4.7 - - + +
36O ALA 3.2 27.6 - - - +
37O SER* 4.4 2.5 - - - -
47O ILE* 4.0 6.5 - - + -
120O MET* 3.8 23.1 - - + -
206O LEU* 3.3 43.0 - - + +
207O VAL 3.5 10.5 - - - +
208O GLY* 3.5 13.5 - - - +
211O VAL* 4.2 16.1 - - + +
212O LYS 3.3 8.4 + - - +
213O HIS* 4.1 7.2 - - - +
215O ASP* 1.3 79.9 - - - +
217O LYS* 1.3 60.0 + - - +
219O VAL* 3.6 4.7 - - - +
220O ALA 3.3 15.2 + - - -
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Residues in contact with LYS 217 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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27O THR* 3.6 39.2 + - - +
29O LEU* 4.7 9.9 - - + -
35O ILE* 3.6 22.1 - - + +
213O HIS* 3.0 27.4 + - + +
214O SER* 3.4 8.5 - - - +
216O LEU* 1.3 73.8 - - - +
218O GLN* 1.3 66.6 + - - +
219O VAL 3.0 2.0 + - - -
220O ALA* 3.1 4.0 + - - +
221O GLU* 3.0 42.1 + - + +
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Residues in contact with GLN 218 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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214O SER 2.9 17.0 + - - +
215O ASP* 3.7 12.6 - - - +
217O LYS* 1.3 76.3 - - - +
219O VAL* 1.3 66.8 + - + +
221O GLU* 3.1 29.4 + - - +
222O GLN* 3.4 25.4 + - + +
223O PHE* 5.0 0.9 - - - -
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Residues in contact with VAL 219 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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120O MET* 3.7 41.7 - - + -
124O LEU* 5.3 4.7 - - + -
206O LEU* 4.9 3.6 - - + -
215O ASP* 2.9 20.0 - - + +
216O LEU* 3.6 10.5 - - - +
217O LYS 3.0 0.4 - - - -
218O GLN* 1.3 82.2 - - + +
220O ALA* 1.3 61.9 + - - +
221O GLU 3.1 0.3 + - - -
223O PHE* 2.8 54.9 + - + +
224O LEU* 6.0 1.6 - - + -
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Residues in contact with ALA 220 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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33O LEU* 3.7 18.2 - - + +
35O ILE* 3.5 28.0 - - + -
206O LEU* 3.1 28.4 - - + +
216O LEU 3.3 1.9 + - - +
217O LYS 3.1 1.5 + - - +
219O VAL* 1.3 81.1 - - - +
221O GLU* 1.3 64.2 + - - +
224O LEU* 3.1 33.4 + - + +
227O ARG* 4.8 0.7 + - - -
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Residues in contact with GLU 221 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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29O LEU* 3.9 29.7 - - + +
217O LYS* 3.0 36.8 + - - +
218O GLN* 3.1 25.4 + - - +
219O VAL 3.1 0.2 + - - -
220O ALA* 1.3 75.6 - - - +
222O GLN* 1.3 66.1 + - - +
223O PHE 2.5 18.5 + - - -
224O LEU 3.4 1.6 + - - +
227O ARG* 3.2 25.0 + - - +
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Residues in contact with GLN 222 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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218O GLN* 3.4 24.9 + - + +
219O VAL 4.0 0.2 - - - -
221O GLU* 1.3 84.0 - - + +
223O PHE* 1.3 80.2 + - + -
225O ASN* 5.9 0.2 - - - -
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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