Contacts of the strand formed by residues 247 - 250 (chain E) in PDB entry 3LUE
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 247 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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198E TYR* 4.3 8.5 - - - -
239E SER* 4.0 16.2 - - - +
240E TYR 3.4 9.6 - - - +
241E GLU* 5.0 3.8 - - + -
242E LEU* 4.0 1.0 - - - +
246E GLN* 1.4 103.6 + - - +
248E ILE* 1.3 73.4 + - - +
249E THR* 4.8 4.9 - - - +
323G SER* 4.4 9.8 + - - +
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Residues in contact with ILE 248 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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193E LEU* 4.5 9.6 - - + -
198E TYR* 4.0 22.9 - - + -
200E PHE* 4.5 8.7 - - + -
208E ILE* 5.1 0.4 - - + -
212E ILE* 3.9 15.7 - - + -
239E SER* 3.1 23.0 + - - -
240E TYR* 2.6 46.3 + - + +
242E LEU* 3.4 32.8 - - + -
247E VAL* 1.3 74.4 - - - +
249E THR* 1.3 71.7 + - - +
250E ILE* 3.4 24.5 - - + -
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Residues in contact with THR 249 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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196E ARG* 3.0 22.8 + - - +
198E TYR* 2.6 28.9 + - - -
237E GLU* 3.5 35.9 - - + +
238E LYS 3.4 7.9 - - - +
239E SER* 3.0 13.4 + - - +
247E VAL* 4.8 6.8 - - - +
248E ILE* 1.3 79.0 + - - +
250E ILE* 1.3 67.7 + - - +
253E GLU* 4.5 0.5 - - - +
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Residues in contact with ILE 250 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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189E LEU* 5.3 3.1 - - + -
193E LEU* 3.9 19.5 - - + -
212E ILE* 3.8 16.4 - - + -
216E LEU* 3.7 24.9 - - + -
217E CYS* 6.3 0.2 - - - -
236E LEU 3.4 1.9 - - - +
237E GLU* 2.9 5.8 - - - -
238E LYS 2.8 42.3 + - - +
240E TYR* 4.2 5.4 - - + -
248E ILE* 3.4 26.9 - - + -
249E THR* 1.3 76.1 - - - +
251E GLY* 1.3 62.8 + - - +
253E GLU* 3.6 27.8 - - + +
254E ARG* 3.7 25.2 - - + +
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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