Contacts of the helix formed by residues 729 - 733 (chain B) in PDB entry 1WBB
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 TYR 729 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
701A THR* 3.3 25.4 - - + +
613B THR* 4.3 3.4 - - - +
695B ILE 3.5 16.6 - - - -
696B GLY* 3.1 21.7 + - - -
700B SER 4.5 1.0 + - - -
701B THR* 3.9 12.1 + - + -
704B GLY* 3.0 31.8 - - - -
705B LEU* 3.2 41.5 + - + -
708B ALA* 3.8 13.0 - - + -
727B THR* 3.1 26.4 + - - +
728B HIS* 1.3 97.0 + + - +
730B PHE* 1.3 61.8 + - - +
731B GLU* 3.0 5.2 + - - +
732B LEU* 3.2 19.6 + - + +
733B THR 4.3 1.2 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 730 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
700A SER* 3.9 17.3 - - - +
701A THR* 3.1 6.6 + - - +
613B THR* 4.9 4.5 - - + -
728B HIS 3.0 7.4 + - - -
729B TYR* 1.3 71.0 - - - +
731B GLU* 1.3 71.6 + - + +
732B LEU 3.1 0.2 - - - -
733B THR* 2.7 52.2 + - + -
734B GLN* 5.3 10.6 - - + +
766B ALA* 4.3 7.6 - - + -
767B ALA* 3.7 24.5 - - + -
768B SER* 5.7 1.3 - - - -
800B SER* 5.7 7.2 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 731 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
701A THR* 2.5 35.3 + - - +
702A TYR* 3.5 24.4 + - - -
792A LYS* 6.2 0.9 - - - +
796A LEU* 6.0 2.5 - - + -
705B LEU* 3.9 30.0 - - + +
709B TRP* 3.4 20.0 - - + -
729B TYR* 3.0 3.1 - - - +
730B PHE* 1.3 89.2 + - + +
732B LEU* 1.3 59.1 + - - +
733B THR 3.4 0.5 + - - -
734B GLN* 3.5 17.1 + - - +
800B SER* 3.1 29.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 732 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
611B ILE* 4.1 11.9 - - + +
705B LEU* 4.4 5.2 - - + -
708B ALA* 3.9 12.3 - - + +
709B TRP* 3.6 38.4 - - + -
725B PHE* 3.8 23.1 - - + -
727B THR* 3.5 35.0 - - + +
729B TYR* 3.2 17.6 + - + +
731B GLU* 1.3 74.5 - - - +
733B THR* 1.3 59.5 + - - +
734B GLN 3.1 5.6 - - - -
735B LEU* 3.1 48.7 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 733 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
611B ILE* 4.7 0.7 - - + -
613B THR* 3.7 27.8 - - + -
730B PHE* 2.7 43.1 + - + +
732B LEU* 1.3 76.8 - - - +
734B GLN* 1.3 63.1 + - - +
735B LEU 3.2 2.0 - - - -
736B PRO* 3.4 4.7 - - - +
737B GLU* 3.7 6.6 - - - +
744B ASN* 2.8 45.2 + - - +
766B ALA* 3.6 23.0 - - + +
----------------------------------------------------------
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