Contacts of the strand formed by residues 254 - 258 (chain A) in PDB entry 6DO5
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 GLU 254 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
211A THR* 3.7 21.3 + - - +
212A GLY* 5.3 1.6 - - - -
248A LEU* 3.5 1.8 - - - -
249A ASN* 2.9 28.0 + - + +
252A THR* 3.1 20.0 + - - +
253A TRP* 1.3 77.4 - - - +
255A TRP* 1.3 66.8 + - - +
256A ASN* 3.1 35.0 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with TRP 255 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
151A TRP* 3.6 22.2 - + - -
160A PHE* 4.0 11.4 - + - -
193A ASP 5.6 0.4 + - - -
195A VAL* 4.0 22.6 - - + +
210A THR* 3.5 24.5 + - - -
211A THR 2.9 15.9 + - - +
212A GLY* 3.9 12.4 - - - -
213A LYS* 3.5 26.1 + - - +
214A ALA* 3.4 23.5 - - + +
215A PRO* 3.5 37.9 - - + -
232A VAL* 4.0 14.1 - - + -
246A HIS* 4.0 7.2 - - + -
247A TYR* 3.5 19.7 - - - -
248A LEU* 3.6 39.1 - - + +
254A GLU* 1.3 75.5 - - - +
256A ASN* 1.3 62.6 + - - +
257A GLU 4.3 0.2 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 256 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
213A LYS* 4.1 5.1 - - - +
246A HIS* 3.2 7.5 - - - +
247A TYR* 2.9 80.8 + - + -
249A ASN* 5.0 1.0 - - - +
254A GLU* 3.1 42.1 + - - +
255A TRP* 1.3 77.5 + - - +
257A GLU* 1.3 64.4 - - - +
258A LEU* 3.7 0.7 + - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 257 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
213A LYS* 3.4 41.7 + - + +
244A ASP* 4.3 12.1 - - - +
245A LEU 3.9 9.0 - - - +
246A HIS* 3.9 27.5 + - + +
256A ASN* 1.3 75.8 - - - +
258A LEU* 1.3 67.6 + - - +
259A ILE* 3.7 31.5 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 258 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
229A ARG* 5.5 3.6 - - - +
231A PHE* 3.6 33.2 - - + -
245A LEU* 3.0 44.9 + - + +
246A HIS 4.5 3.1 - - - -
247A TYR* 3.7 28.9 - - + -
256A ASN* 4.6 0.4 - - + +
257A GLU* 1.3 77.8 - - - +
259A ILE* 1.3 68.2 + - - +
260A PRO* 3.5 7.6 - - + +
300A TYR* 3.6 22.2 - - - +
302A ILE 6.2 0.2 - - - +
305A ASN* 4.2 11.9 - - + +
----------------------------------------------------------
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