Contacts of the helix formed by residues 287 - 293 (chain F) in PDB entry 5WUA
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 ILE 287 (chain F).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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270F PHE* 3.3 35.7 - - + -
285F ARG* 3.4 15.7 + - + +
286F ALA* 1.3 71.6 - - - +
288F TRP* 1.3 78.9 + - + +
289F ARG 3.1 3.6 - - - -
290F ALA* 2.3 35.0 + - + -
291F LEU* 2.9 28.0 + - + +
607F VAL* 5.7 6.1 - - + +
610F LEU* 5.9 8.3 - - + -
611F SER* 6.2 3.4 - - - +
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Residues in contact with TRP 288 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
286F ALA* 3.5 5.5 - - + -
287F ILE* 1.3 95.7 - - + +
289F ARG* 1.3 63.6 + - - +
291F LEU* 4.4 7.0 - - + +
292F CYS* 3.0 35.6 + - - +
600F THR 5.3 1.3 - - - -
603F ALA* 4.0 10.5 + - + -
604F LEU* 3.8 28.7 - - + -
607F VAL* 3.2 35.9 - - + +
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Residues in contact with ARG 289 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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273F GLN* 4.8 16.5 + - - +
286F ALA* 4.4 9.5 + - - +
287F ILE 4.3 0.2 - - - +
288F TRP* 1.3 76.0 - - - +
290F ALA* 1.3 53.0 + - - +
292F CYS* 4.8 0.8 - - - +
293F HIS* 2.7 44.7 + - + +
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Residues in contact with ALA 290 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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269F ALA* 5.7 1.3 - - - +
270F PHE* 3.4 42.1 + - + +
273F GLN* 4.2 22.9 - - + -
286F ALA 5.5 0.4 - - - +
287F ILE* 2.3 28.8 + - + +
289F ARG* 1.3 70.2 - - - +
291F LEU* 1.3 58.0 + - - +
293F HIS* 3.3 5.8 + - - +
294F ALA* 2.9 28.3 + - - +
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Residues in contact with LEU 291 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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266F LEU* 4.1 28.0 - - + -
270F PHE* 5.4 1.0 - - - -
287F ILE* 2.9 26.9 + - + +
288F TRP* 4.1 7.6 - - + +
290F ALA* 1.3 75.8 - - - +
292F CYS* 1.3 63.2 + - - +
294F ALA* 2.6 26.9 + - + +
295F PHE* 3.0 31.9 + - + +
299F LEU* 6.3 0.7 - - + -
387F LEU* 5.5 12.1 - - + +
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Residues in contact with CYS 292 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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288F TRP* 3.0 22.6 + - - +
289F ARG* 4.8 0.7 - - - +
291F LEU* 1.3 86.9 - - - +
293F HIS* 1.3 56.0 + - - +
294F ALA 3.2 0.9 - - - -
296F GLY* 2.8 28.2 - - - -
299F LEU* 3.8 24.7 - - + -
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Residues in contact with HIS 293 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
269F ALA* 5.1 7.1 - - + +
273F GLN* 3.7 25.7 + - - +
289F ARG* 2.7 29.1 + - + +
290F ALA* 3.4 6.5 - - - +
291F LEU 3.0 0.2 - - - -
292F CYS* 1.3 76.6 - - - +
294F ALA* 1.3 60.2 + - - +
296F GLY* 4.3 1.6 - - - -
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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