Contacts of the helix formed by residues 791 - 797 (chain D) in PDB entry 6M04
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 PRO 791 (chain D).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
767D LEU 5.7 1.3 - - - +
769D LYS* 4.9 15.0 - - + -
789D SER* 3.7 17.7 - - - +
790D LEU* 1.3 90.3 - - - +
792D GLU* 1.3 55.5 + - + +
793D LYS* 3.0 31.8 - - + +
794D VAL* 2.8 30.8 + - - +
816D GLN* 3.6 15.1 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 792 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
772D PHE* 4.2 13.2 - - + -
791D PRO* 1.3 73.6 - - + +
793D LYS* 1.3 56.2 + - - +
794D VAL 3.2 0.4 - - - -
795D GLY* 3.1 5.5 + - - +
796D GLN* 2.9 63.7 + - - +
816D GLN* 3.5 25.2 + - + +
819D GLN* 5.8 5.0 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 793 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
767D LEU* 3.5 33.5 - - - +
768D PRO 3.3 27.8 - - - +
769D LYS* 3.8 11.2 - - - +
770D GLN 4.1 0.9 - - - +
771D LEU* 3.2 43.0 - - + +
772D PHE* 3.5 36.0 - - + +
789D SER 4.9 1.5 + - - -
790D LEU* 3.6 27.3 - - - +
791D PRO* 2.9 28.3 + - + +
792D GLU* 1.3 76.3 - - - +
794D VAL* 1.3 62.3 + - - +
796D GLN* 4.0 1.9 + - - +
797D LEU* 3.4 10.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 794 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
771D LEU* 4.8 3.1 - - + -
790D LEU* 3.5 40.2 - - + +
791D PRO 2.8 18.1 + - - +
793D LYS* 1.3 80.5 - - + +
795D GLY* 1.3 61.2 + - - +
796D GLN 3.4 0.2 - - - -
797D LEU* 3.3 22.3 - - + +
803D LEU* 3.8 30.3 - - + -
816D GLN* 4.1 6.5 - - + -
817D LEU* 3.8 26.2 - - + -
820D CYS* 3.3 13.2 - - - -
823D LEU* 4.1 2.3 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 795 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
791D PRO 3.9 0.6 + - - -
792D GLU* 3.1 13.2 + - - +
794D VAL* 1.3 81.6 - - - +
796D GLN* 1.3 61.3 + - - +
797D LEU 5.2 1.2 - - - -
816D GLN* 3.6 19.0 - - - +
819D GLN* 2.9 35.5 - - - +
820D CYS* 3.8 0.2 - - - -
823D LEU* 6.2 0.2 - - - -
----------------------------------------------------------
Back to top of page
Residues in contact with GLN 796 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
772D PHE* 3.4 42.5 - - + +
775D ILE* 4.2 13.6 - - + +
792D GLU* 2.9 42.8 + - - +
793D LYS 4.0 1.1 + - - +
794D VAL 3.4 0.6 - - - -
795D GLY* 1.3 78.5 - - - +
797D LEU* 1.3 60.7 + - - +
798D SER* 3.0 11.6 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 797 (chain D).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
771D LEU* 3.7 20.2 + - + +
772D PHE* 5.6 0.2 - - - +
774D CYS 4.8 1.8 - - - +
775D ILE* 4.0 24.5 - - + +
777D LEU* 3.8 16.2 - - + -
780D LEU* 5.1 0.7 - - + -
793D LYS 3.4 20.2 - - - +
794D VAL* 3.3 28.0 - - + +
795D GLY 3.7 1.4 - - - -
796D GLN* 1.3 74.1 - - - +
798D SER* 1.3 63.9 - - - +
799D GLN 3.4 0.4 - - - -
800D LEU* 3.7 44.7 + - + -
803D LEU* 5.6 1.6 - - + -
823D LEU* 3.8 20.8 - - + +
----------------------------------------------------------
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