Contacts of the helix formed by residues 268 - 275 (chain B) in PDB entry 2FJU
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 GLN 268 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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238B LYS* 3.9 34.8 - - + +
241B LEU* 5.9 1.6 - - - +
269B GLY* 1.3 67.8 + - - +
270B LEU* 3.1 8.1 - - - +
271B ILE* 3.2 21.3 + - - +
272B ASP* 3.0 52.1 + - - +
284B GLY* 3.9 23.1 - - - -
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Residues in contact with GLY 269 (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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268B GLN* 1.3 78.9 - - - +
270B LEU* 1.3 57.4 + - - +
272B ASP* 3.4 10.5 + - - +
273B LYS* 3.0 28.6 + - - +
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Residues in contact with LEU 270 (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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241B LEU* 4.9 11.4 - - + -
245B ILE* 3.6 31.4 - - + -
268B GLN* 3.1 5.5 - - - +
269B GLY* 1.3 75.4 - - - +
271B ILE* 1.3 60.3 + - + +
273B LYS* 3.2 5.2 + - + -
274B TYR* 2.8 45.5 + - + +
286B LEU* 5.7 0.4 - - - -
294B PHE* 3.6 25.1 - - + -
299B GLU* 3.9 33.7 - - + +
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Residues in contact with ILE 271 (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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236B MET 4.8 0.7 - - - +
238B LYS* 3.9 21.1 - - + +
241B LEU* 3.4 31.2 - - + -
268B GLN* 3.2 24.8 + - - +
270B LEU* 1.3 77.7 - - - +
272B ASP* 1.3 59.8 + - - +
275B GLU* 2.9 41.6 + - + +
284B GLY* 3.7 25.6 - - - +
285B GLN 3.4 31.0 - - - +
286B LEU* 4.3 13.9 - - + +
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Residues in contact with ASP 272 (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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268B GLN* 3.0 45.5 + - - +
269B GLY* 3.7 10.5 - - - +
271B ILE* 1.3 78.4 - - - +
273B LYS* 1.3 61.9 + - - +
275B GLU 4.4 7.1 - - - +
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Residues in contact with LYS 273 (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 LYS* 5.3 5.4 + - - -
269B GLY 3.0 18.0 + - - +
270B LEU* 3.6 7.2 - - + +
272B ASP* 1.3 79.3 - - - +
274B TYR* 1.3 96.5 + - + +
275B GLU 5.1 0.6 - - - +
298B PRO* 4.2 10.7 - - - +
299B GLU* 2.7 25.6 + - - +
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Residues in contact with TYR 274 (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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145B SER* 5.9 2.9 - - - -
209B LYS* 5.1 8.7 + - - +
270B LEU* 2.8 33.1 + - + +
273B LYS* 1.3 115.8 + - + +
275B GLU* 1.3 63.2 + - - +
276B PRO* 3.2 10.4 - - - +
286B LEU* 4.8 2.7 - - + -
290B GLY* 3.7 23.5 - - - +
293B TRP* 3.4 44.1 - - + +
294B PHE* 3.6 27.4 - + + +
297B GLY* 3.5 5.7 - - - -
298B PRO* 3.5 13.6 - - + +
299B GLU* 2.5 31.7 + - - -
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Residues in contact with GLU 275 (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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235B TYR* 6.5 0.4 - - - -
271B ILE* 2.9 37.5 + - + +
272B ASP 4.4 6.4 - - - +
273B LYS 5.1 0.7 - - - +
274B TYR* 1.3 70.6 - - - +
276B PRO* 1.3 77.6 - - - +
277B SER* 3.1 40.4 + - - +
285B GLN 3.6 13.0 - - - +
286B LEU* 3.5 10.3 - - + +
287B SER* 2.6 46.6 + - - -
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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