Contacts of the helix formed by residues 825 - 831 (chain B) in PDB entry 5LOH
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 GLY 825 (chain B).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
821A THR* 6.0 6.6 - - - +
761B TRP* 4.1 20.9 - - - -
823B ARG 3.7 2.0 + - - -
824B ALA* 1.3 76.5 - - - +
826B MET* 1.3 65.8 + - - -
827B LYS 3.4 1.3 - - - -
828B GLU* 3.3 15.6 + - - -
829B LEU* 3.2 23.4 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with MET 826 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
141B ALA* 4.0 17.0 - - - +
142B LEU* 3.7 31.6 - - + -
145B ASP* 3.5 31.6 - - + +
761B TRP* 3.7 35.0 - - + -
825B GLY* 1.3 69.7 - - - -
827B LYS* 1.3 67.9 + - - +
829B LEU* 2.9 8.7 + - - +
830B LYS* 2.9 57.0 + - + +
840B TRP* 3.9 13.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 827 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
825B GLY 3.4 0.2 - - - -
826B MET* 1.3 80.9 - - - +
828B GLU* 1.3 70.7 + - - +
829B LEU 3.3 0.3 + - - -
830B LYS* 3.3 11.5 + - - +
831B ARG* 3.2 33.4 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 828 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
819A ASP* 5.5 1.9 - - - +
821A THR* 4.5 13.2 + - - -
814B ILE* 4.4 6.1 - - + +
823B ARG 5.0 2.7 - - - +
824B ALA* 3.6 29.6 - - + -
825B GLY* 3.3 18.7 + - - +
826B MET 3.3 0.4 - - - -
827B LYS* 1.3 82.3 - - - +
829B LEU* 1.3 62.8 + - - +
830B LYS 3.6 0.2 + - - -
831B ARG* 3.4 38.7 + - - +
832B HIS* 3.8 12.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 829 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
137B ILE* 5.0 0.2 - - + -
141B ALA* 3.7 30.1 - - + -
761B TRP* 4.3 4.7 - - + -
764B LEU* 4.2 11.0 - - + -
811B ALA* 5.5 0.4 - - + +
814B ILE* 4.6 11.2 - - + -
815B LEU* 3.7 38.1 - - + -
824B ALA* 4.9 0.9 - - + -
825B GLY 3.2 16.8 + - - +
826B MET* 2.9 9.9 + - - +
828B GLU* 1.3 75.9 - - - +
830B LYS* 1.3 65.2 + - - +
832B HIS* 3.3 18.1 + - - +
835B PHE* 3.4 46.7 - - + +
840B TRP* 4.7 7.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 830 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
142B LEU* 6.0 0.6 - - - +
826B MET* 2.9 49.4 + - + +
827B LYS* 3.3 6.9 + - - +
829B LEU* 1.3 78.1 - - - +
831B ARG* 1.3 59.9 + - + +
832B HIS 3.1 4.7 + - - +
835B PHE 3.5 16.1 - - - +
836B SER* 5.2 0.9 - - - -
840B TRP* 3.6 51.7 + - + +
841B GLU 5.6 0.2 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 831 (chain B).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
827B LYS* 3.2 17.3 + - - +
828B GLU* 3.4 51.6 + - - +
829B LEU 3.3 1.0 - - - -
830B LYS* 1.3 75.2 - - + +
832B HIS* 1.3 60.7 + - - +
833B PRO* 3.9 4.7 - - - +
----------------------------------------------------------
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