Contacts of the strand formed by residues 261 - 267 (chain D) in PDB entry 2HU4
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 LYS 261 (chain D).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
415B LEU* 6.3 1.6 - - - +
212D THR* 3.6 20.4 + - - +
213D ASP* 3.8 9.0 - - - +
257D MET* 3.2 4.0 - - - -
258D GLU 2.9 34.4 + - - +
259D LYS* 3.2 3.2 + - + +
260D GLY* 1.3 79.0 - - - +
262D VAL* 1.3 73.8 + - - +
263D VAL* 3.3 12.3 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 262 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
205D LEU* 3.8 23.8 - - + -
213D ASP* 2.7 26.3 + - - +
215D ILE* 4.0 19.7 - - + -
255D PHE* 4.2 16.2 - - + -
256D LYS 3.6 5.8 - - - +
257D MET* 4.3 7.0 - - - -
261D LYS* 1.3 77.4 - - - +
263D VAL* 1.3 61.3 + - - +
264D LYS* 3.7 24.7 - - - +
265D SER* 4.6 3.1 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 263 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
256D LYS* 3.0 38.6 + - + +
257D MET 4.4 0.2 - - - +
258D GLU* 3.7 33.7 - - + +
261D LYS* 3.3 21.5 + - + +
262D VAL* 1.3 76.2 - - - +
264D LYS* 1.3 65.4 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 264 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
255D PHE* 3.7 0.7 - - - -
256D LYS* 2.9 39.7 + - + +
262D VAL* 3.6 7.2 - - - +
263D VAL* 1.3 87.5 - - + +
265D SER* 1.3 69.4 + - - +
266D VAL* 4.2 17.0 - - - -
309D ASN* 3.1 38.7 + - - +
310D LEU* 3.5 14.8 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 265 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
253D LYS* 5.3 7.9 + - - +
254D ILE 3.4 7.0 - - - -
255D PHE* 3.6 32.9 - - - -
262D VAL* 4.6 4.5 - - - +
264D LYS* 1.3 81.3 - - - +
266D VAL* 1.3 68.5 + - - +
310D LEU* 3.9 0.9 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 266 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
253D LYS* 3.1 9.7 - - - +
254D ILE* 2.9 36.1 + - + +
264D LYS* 4.2 12.3 - - - -
265D SER* 1.3 80.9 - - - +
267D GLU* 1.3 75.7 + - - +
268D LEU* 4.0 1.9 + - + -
310D LEU* 3.7 34.8 - - + +
312D TYR* 3.9 24.5 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 267 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
218D TRP* 4.6 2.8 + - - -
219D ARG* 5.2 9.2 + - - -
251D SER* 2.6 31.7 + - - -
252D TYR 3.2 16.8 + - - +
253D LYS* 3.7 22.5 + - + +
266D VAL* 1.3 86.1 - - - +
268D LEU* 1.3 72.7 + - - +
269D ASP* 3.5 2.9 + - - +
312D TYR* 3.8 4.0 + - - -
----------------------------------------------------------
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