Contacts of the helix formed by residues 229 - 234 (chain B) in PDB entry 3OP5
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 SER 229 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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228B THR* 1.3 78.8 + - - +
230B ILE* 1.4 62.9 + - - +
231B ASP* 3.6 6.9 + - - +
232B ALA* 3.1 22.9 + - - +
233B HIS* 3.1 24.0 + - - -
238B PRO* 5.6 4.9 - - - +
242B GLY* 3.6 30.9 - - - -
245B GLU* 3.6 19.7 - - - -
246B ILE* 3.8 9.3 - - - +
367B EDO 3.7 2.5 - - - -
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Residues in contact with ILE 230 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
229B SER* 1.4 69.3 - - - +
231B ASP* 1.4 54.6 + - - +
233B HIS* 3.2 11.2 + - + +
234B ASN* 2.8 50.4 + - - +
245B GLU* 3.2 21.2 + - - +
249B TYR* 4.1 1.1 - - - +
272B ARG* 4.9 1.8 - - + +
275B LYS* 3.6 43.5 - - + +
276B ILE* 3.9 24.9 - - + +
279B ARG* 3.7 29.2 - - + -
367B EDO 3.8 15.0 - - - -
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Residues in contact with ASP 231 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
213B TYR* 3.8 13.0 + - - -
229B SER* 3.2 6.5 - - - +
230B ILE* 1.4 74.5 - - - +
232B ALA* 1.4 58.0 + - - +
234B ASN* 3.0 20.3 + - - -
235B GLY 3.3 0.2 + - - -
236B VAL* 3.2 32.9 + - + +
237B ALA 4.9 3.1 - - - +
238B PRO* 5.5 3.8 - - + -
239B SER* 4.2 2.3 + - - +
241B ARG* 2.8 49.9 + - - +
242B GLY* 4.6 3.0 + - - -
311B TYR* 3.7 16.1 - - + -
367B EDO 3.0 23.8 + - - +
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Residues in contact with ALA 232 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
219B ARG* 6.3 0.9 - - - +
222B ASP* 3.9 30.8 - - - +
228B THR* 3.2 26.5 - - - +
229B SER* 3.1 13.0 + - - +
231B ASP* 1.4 72.7 - - - +
233B HIS* 1.3 64.9 + - - +
235B GLY* 3.0 15.2 + - - -
236B VAL 4.0 11.4 + - - +
238B PRO* 5.8 9.1 - - + +
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Residues in contact with HIS 233 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
222B ASP* 6.1 0.4 - - - -
225B ILE* 3.7 19.2 - - + +
228B THR* 3.4 19.4 - - + +
229B SER 3.1 23.0 + - - -
230B ILE* 3.3 10.3 - - - +
232B ALA* 1.3 76.0 - - - +
234B ASN* 1.3 58.7 + - - +
235B GLY* 3.2 3.9 + - - -
268B PRO* 4.5 5.8 + - - +
271B VAL* 3.6 22.8 - - + +
272B ARG* 3.7 40.6 + - + +
275B LYS* 2.9 40.4 + - + +
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Residues in contact with ASN 234 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
213B TYR* 4.2 19.9 + - - +
230B ILE* 2.8 36.0 + - - +
231B ASP* 3.0 10.0 + - - +
233B HIS* 1.3 74.2 - - - +
235B GLY* 1.3 61.3 + - - +
236B VAL* 3.4 8.9 + - + +
272B ARG* 2.8 39.2 + - - +
276B ILE* 4.9 5.0 - - - +
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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
------------------------------------------------------------
Atomic class I II III IV V VI VII VIII
------------------------------------------------------------
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