Contacts of the strand formed by residues 238 - 241 (chain B) in PDB entry 3EWS
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 VAL 238 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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151B ALA 4.9 1.1 - - - +
152B MET* 4.0 27.4 - - + +
155B GLN* 3.6 28.7 - - + +
164B GLN 3.3 2.6 + - - -
165B CYS* 3.6 15.2 - - - -
166B LEU 2.9 25.8 + - - -
236B ILE* 3.4 9.9 - - - +
237B LYS* 1.3 85.0 - - - +
239B PHE* 1.3 65.9 + - - +
240B VAL* 4.1 1.8 - - + -
268B CYS* 4.1 0.7 - - - -
269B GLN* 3.6 23.3 - - - +
271B LEU* 3.9 23.6 - - + -
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Residues in contact with PHE 239 (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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166B LEU* 3.4 19.1 - - + -
168B LEU* 4.0 28.9 - - + -
236B ILE* 5.2 0.2 - - + -
238B VAL* 1.3 75.6 - - - +
240B VAL* 1.3 63.7 + - - +
241B LEU* 4.6 15.5 - - + -
257B SER 4.4 4.9 - - - -
260B ILE* 3.9 21.5 - - + -
261B GLN* 4.2 15.7 - - + -
264B LEU* 3.6 27.8 - - + -
268B CYS* 4.1 1.3 - - - -
269B GLN 2.8 15.9 + - - +
270B MET* 3.8 19.5 - - + -
271B LEU* 2.7 39.5 + - - +
288B VAL* 4.2 23.8 - - + -
289B VAL* 6.1 0.2 - - + -
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Residues in contact with VAL 240 (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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148B PHE* 3.8 34.3 - - + -
152B MET* 3.5 27.4 - - + -
166B LEU 3.0 7.7 + - - +
167B CYS* 3.5 13.2 - - - -
168B LEU* 2.7 35.3 + - - +
238B VAL* 4.1 2.5 - - + -
239B PHE* 1.3 83.5 - - - +
241B LEU* 1.3 60.8 + - - +
242B ASP* 3.7 13.2 - - - +
271B LEU* 3.1 29.4 - - + +
273B PHE* 4.4 3.4 - - + -
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Residues in contact with LEU 241 (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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168B LEU* 3.9 11.0 - - + -
239B PHE* 4.6 9.2 - - + -
240B VAL* 1.3 74.3 - - - +
242B ASP* 1.3 64.7 + - - +
244B ALA* 3.6 29.8 - - + -
247B MET* 3.7 29.2 - - + -
257B SER* 3.4 35.4 - - - +
271B LEU 2.8 11.7 + - - +
272B LEU* 4.1 14.1 - - + -
273B PHE 3.1 24.3 + - - +
284B PHE* 4.5 10.1 - - + -
288B VAL* 4.4 16.4 - - + -
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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