Contacts of the strand formed by residues 252 - 256 (chain X) in PDB entry 2BOD
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 252 (chain X).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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198X VAL* 4.3 13.5 - - + -
201X ALA* 4.2 14.4 - - + -
202X LYS* 4.3 15.7 - - + +
205X LEU* 5.4 0.4 - - + -
215X ALA* 3.4 27.1 - - + +
217X ILE* 4.1 14.6 - - + -
245X THR 4.9 0.5 - - - +
247X THR* 2.8 39.9 + - + +
249X ASP* 3.0 28.9 + - + +
250X PRO 4.8 2.2 - - - -
251X MET* 1.3 83.4 - - + +
253X ASP* 1.3 63.0 + - - +
254X ALA 3.8 16.2 - - - +
255X PHE* 4.1 12.6 - - + -
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Residues in contact with ASP 253 (chain X).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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111X TYR* 4.7 10.9 + - + +
152X ARG* 4.3 6.2 + - - -
154X TYR* 2.7 29.2 + - + +
182X HIS* 2.9 22.1 + - - -
214X ARG* 3.4 28.7 + - + +
215X ALA 2.8 13.5 + - - +
216X VAL* 3.9 4.7 - - + -
245X THR* 3.8 20.4 - - - +
247X THR* 4.1 0.2 - - - -
250X PRO 5.2 0.3 - - - +
251X MET 3.7 2.6 + - - -
252X ILE* 1.3 72.8 - - - +
254X ALA* 1.3 62.5 + - + +
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Residues in contact with ALA 254 (chain X).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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5X PHE* 4.3 10.8 - - + -
111X TYR* 4.5 3.8 - - + -
215X ALA 3.7 1.2 + - - -
216X VAL* 3.3 13.4 - - + +
217X ILE 3.1 22.7 + - - -
244X THR 3.3 16.6 - - - +
247X THR* 3.6 9.4 - - - -
252X ILE* 3.3 6.4 - - - +
253X ASP* 1.3 82.7 - - - +
255X PHE* 1.3 60.7 + - - +
256X LEU* 3.7 25.8 - - + -
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Residues in contact with PHE 255 (chain X).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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194X THR* 3.7 27.8 - - + -
198X VAL* 4.3 11.9 - - + -
217X ILE* 3.4 12.8 - - + -
219X THR* 3.5 28.9 - - + +
241X THR* 4.2 18.6 - - + +
243X SER* 3.1 2.5 - - - -
244X THR* 2.8 56.0 + - + +
246X ASN 4.1 3.6 - - - -
247X THR* 3.7 36.3 - - + +
252X ILE* 4.1 16.2 - - + -
254X ALA* 1.3 77.4 - - - +
256X LEU* 1.3 61.5 + - - +
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Residues in contact with LEU 256 (chain X).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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5X PHE* 3.9 21.3 - - + -
69X ILE* 3.9 36.6 - - + -
111X TYR* 4.1 12.8 - - + -
113X ILE* 4.5 7.0 - - + -
216X VAL* 3.8 33.9 - - + -
217X ILE 2.9 6.9 + - - +
218X ASP* 3.1 9.2 - - - +
219X THR* 2.9 21.0 + - - -
243X SER* 3.7 4.5 - - - -
254X ALA* 3.7 17.9 - - + -
255X PHE* 1.3 82.6 - - - +
257X TRP* 1.3 65.5 + - - +
258X ILE* 3.2 14.0 + - + -
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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