Contacts of the strand formed by residues 228 - 232 (chain C) in PDB entry 2O2C
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 228 (chain C).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
198C ARG 2.9 11.4 + - - -
199C HIS* 3.4 30.7 + - - -
200C VAL* 2.8 27.5 + - - +
225C ARG 5.6 0.7 + - - -
226C ASP 4.0 2.8 + - - -
227C LEU* 1.3 70.8 - - - +
229C LEU* 1.3 60.9 + - - +
230C HIS* 3.5 12.2 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 229 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
200C VAL* 3.5 30.3 - - + +
216C THR* 3.8 27.1 - - + +
227C LEU* 3.8 14.6 + - + +
228C SER* 1.3 74.3 - - - +
230C HIS* 1.3 67.2 + - - +
231C PHE* 3.9 20.2 - - + -
336C PRO* 4.6 8.1 - - + +
339C ILE* 5.2 1.3 - - + -
340C SER* 3.4 39.9 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 230 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
199C HIS* 3.1 27.7 + + + -
200C VAL 2.9 10.6 + - - +
201C VAL* 3.8 20.0 - - + -
202C ASN* 2.9 25.7 + - - +
228C SER* 3.5 25.5 - - - -
229C LEU* 1.3 76.1 + - - +
231C PHE* 1.3 69.1 + - - +
232C VAL 4.1 0.7 - - - -
243C VAL* 4.0 17.9 - - + +
246C SER* 4.0 27.7 - - - -
247C ILE* 3.7 18.3 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 231 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
202C ASN* 3.6 29.8 - - + +
209C ASP* 3.8 13.2 - - - +
212C PRO* 3.7 29.6 - - + -
213C VAL* 3.6 25.8 - - + -
216C THR* 3.4 30.5 - - + -
217C GLU* 5.6 5.2 - - + -
229C LEU* 3.9 30.1 - - + -
230C HIS* 1.3 76.4 - - - +
232C VAL* 1.3 62.9 + - - +
233C SER* 4.5 0.5 + - - -
239C HIS* 3.4 24.8 + - - -
243C VAL* 5.0 3.7 - - - +
336C PRO* 4.6 7.6 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 232 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
201C VAL* 3.8 17.9 - - + -
202C ASN 2.8 15.4 + - - +
203C ILE* 3.3 10.3 - - + +
204C GLY 3.1 24.9 + - - +
209C ASP* 4.7 0.9 - - - +
231C PHE* 1.3 70.1 - - - +
233C SER* 1.3 63.3 + - - +
239C HIS* 4.0 11.0 - - + +
240C ILE* 4.3 26.5 - - + +
243C VAL* 3.7 32.1 - - + -
269C ASN* 3.6 35.4 - - + +
----------------------------------------------------------
Back to top of page
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) + - + + + + + -
------------------------------------------------------------
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