Contacts of the strand formed by residues 261 - 266 (chain A) in PDB entry 5N4D
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 261 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
202A PHE* 4.3 27.1 - - + +
217A GLN* 3.5 10.8 - - - +
219A TYR* 3.4 25.4 - - + +
234A ALA* 4.2 2.9 - - + -
259A GLU 4.1 7.9 - - - +
260A TRP* 1.3 79.6 - - - +
262A TYR* 1.3 73.7 + - - +
277A GLN* 3.4 0.2 - - - -
278A PHE* 2.9 55.6 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 262 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
202A PHE 4.3 3.1 - - - +
203A SER* 4.0 8.3 - - - -
217A GLN* 2.8 28.3 + - - +
234A ALA 3.3 28.3 - - - -
236A MET* 3.6 37.4 - - + +
252A TYR* 3.6 20.2 - + - -
253A GLN* 4.6 4.7 - - - -
254A ASP* 3.2 29.9 + - - +
257A HIS 4.3 2.4 + - - -
260A TRP* 3.7 31.2 + - + +
261A ILE* 1.3 82.7 - - - +
263A GLY* 1.3 59.6 + - - +
275A LEU* 4.3 4.3 - - + -
276A TYR 3.2 5.4 - - - +
277A GLN* 3.6 35.3 + - + -
278A PHE* 4.2 7.3 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 263 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
203A SER* 5.1 4.9 - - - -
204A THR* 6.1 0.7 - - - -
236A MET* 3.6 7.6 - - - -
262A TYR* 1.3 74.4 - - - +
264A ALA* 1.3 62.8 + - - +
275A LEU* 3.6 9.5 - - - +
276A TYR* 2.9 43.2 + - - +
278A PHE* 3.9 5.7 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 264 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
203A SER* 6.0 0.2 - - - -
204A THR* 4.5 4.2 + - - -
206A ILE* 3.4 22.3 - - + +
215A LEU* 4.4 16.2 - - + -
236A MET* 4.1 22.9 - - + +
263A GLY* 1.3 76.9 - - - +
265A ASP* 1.3 73.7 + - - +
273A LEU* 4.7 8.7 - - + -
274A TYR 3.2 13.2 - - - +
275A LEU* 5.2 0.9 - - + -
276A TYR* 3.7 9.3 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 265 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
206A ILE* 3.8 18.3 - - - +
264A ALA* 1.3 81.5 - - - +
266A THR* 1.3 70.0 + - - +
273A LEU* 3.7 1.4 - - - +
274A TYR* 2.8 47.1 + - + +
276A TYR* 2.7 31.5 + - + +
315A ASN* 4.2 5.7 + - - +
316A ILE* 4.4 10.9 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 266 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
206A ILE* 3.8 12.7 - - + +
207A TRP 2.9 27.2 + - - +
208A THR* 4.3 12.6 - - + -
209A LYS* 3.2 29.2 + - - +
215A LEU* 3.9 9.0 - - + -
265A ASP* 1.3 82.9 + - - +
267A SER* 1.3 66.6 + - - +
268A GLU 3.7 0.3 + - - -
272A TYR 3.5 7.4 - - - +
273A LEU* 3.8 21.3 - - + -
274A TYR* 4.4 2.9 - - - -
292A LEU* 5.1 5.4 - - + -
----------------------------------------------------------
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