Contacts of the strand formed by residues 233 - 237 (chain B) in PDB entry 3EXG
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 CYS 233 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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202B ARG* 2.7 35.9 + - - +
203B GLN 3.5 1.0 - - - +
204B GLY* 3.3 5.8 - - - -
207B ILE* 3.6 24.7 - - + -
209B VAL* 4.1 11.7 - - + -
223B ALA* 4.1 26.7 - - + -
226B LEU* 3.9 29.4 - - - -
231B VAL* 3.7 4.4 + - - -
232B GLU* 1.3 72.4 - - - +
234B GLU* 1.3 61.0 + - - +
235B VAL* 3.8 4.3 - - + -
323B ILE* 4.1 10.5 - - - -
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Residues in contact with GLU 234 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
200B ILE* 4.2 15.4 - - + +
202B ARG 3.2 10.1 - - - +
203B GLN* 3.5 11.0 - - - +
204B GLY* 2.8 38.0 + - - +
207B ILE 2.8 16.9 + - - +
208B THR* 3.7 1.8 - - - +
209B VAL* 2.8 30.5 + - - +
233B CYS* 1.3 72.1 - - - +
235B VAL* 1.3 59.6 + - - +
236B ILE* 3.7 6.0 + - + -
252B SER* 3.0 38.2 + - - +
255B LYS* 3.0 26.9 + - - +
256B THR* 4.5 2.2 - - + -
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Residues in contact with VAL 235 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
200B ILE* 3.6 4.3 - - - +
201B GLU* 2.9 32.0 + - + -
202B ARG* 2.9 18.3 + - + +
209B VAL* 3.4 16.6 - - + +
211B SER* 6.0 0.4 - - - -
216B VAL* 4.6 8.5 - - + +
219B CYS* 3.8 39.3 - - + +
220B LEU* 4.1 27.4 - - + -
223B ALA* 4.3 4.7 - - + -
233B CYS* 3.8 12.3 + - + -
234B GLU* 1.3 73.5 - - - +
236B ILE* 1.3 70.7 + - - +
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Residues in contact with ILE 236 (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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198B ALA* 3.8 23.3 - - + -
199B LYS 3.5 9.2 - - - +
200B ILE* 4.1 12.6 - - + -
208B THR* 3.8 24.9 - - + -
209B VAL 2.7 15.1 + - - +
210B VAL* 3.5 7.9 - - + -
211B SER* 2.9 30.7 + - - +
216B VAL* 4.5 1.2 - - - +
234B GLU* 4.5 4.9 - - + +
235B VAL* 1.3 80.1 - - - +
237B ASN* 1.3 63.8 + - - +
238B MET* 3.6 2.0 + - - +
248B THR* 4.2 17.5 - - + -
249B ILE* 4.3 22.4 - - + -
252B SER* 4.0 17.9 - - - -
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Residues in contact with ASN 237 (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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146B SER 4.8 0.8 + - - -
148B TRP* 3.9 7.9 - - - +
152B ASP* 2.9 28.7 + - - +
198B ALA* 3.2 2.8 - - - +
199B LYS* 2.8 32.8 + - + +
201B GLU* 3.2 35.3 - - + +
211B SER 3.6 2.8 + - - -
212B HIS* 4.3 4.2 - - - +
213B SER 4.6 1.0 - - - +
216B VAL* 3.6 26.3 - - + +
235B VAL* 3.9 1.6 + - - +
236B ILE* 1.3 72.1 - - - +
238B MET* 1.3 67.4 + - - +
239B ARG* 3.3 22.1 + - - +
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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