Contacts of the helix formed by residues 909 - 921 (chain S) in PDB entry 1BKD
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 909 (chain S).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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905S HIS* 3.9 23.1 + - + +
906S GLU* 3.5 43.2 - - - +
907S LEU 3.5 2.0 - - - +
908S SER* 1.3 82.9 - - - +
910S ASP* 1.3 75.8 + - - +
912S TYR 3.1 5.0 + - - -
913S LYS* 3.4 8.7 + - - +
914S LYS* 4.6 4.6 + - - +
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Residues in contact with ASP 910 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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5R LYS* 5.5 8.6 + - - +
40R TYR* 3.7 9.9 + - - -
41R ARG* 4.8 15.4 + - - -
54R ASP* 5.6 0.5 - - - +
909S GLU* 1.3 80.9 - - - +
911S HIS* 1.3 77.7 + - - +
913S LYS* 3.7 28.7 + - + +
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Residues in contact with HIS 911 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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5R LYS* 5.7 2.2 - - - -
40R TYR* 3.2 54.9 + + + +
54R ASP* 2.9 25.8 + - - -
55R ILE 3.7 17.2 - - - -
56R LEU* 4.0 29.8 - - + +
908S SER 3.5 3.6 + - - -
909S GLU 3.1 1.0 - - - -
910S ASP* 1.3 85.2 - - - +
912S TYR* 1.3 75.6 + - - +
913S LYS* 3.2 2.1 + - - -
916S LEU* 4.6 8.1 - - - +
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Residues in contact with TYR 912 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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61R GLN* 5.4 1.8 - - - -
67R MET* 4.4 3.5 - - - -
70R GLN* 4.5 5.7 + - - -
71R TYR* 2.8 44.2 + + - -
872S LEU* 3.6 25.3 - - + +
907S LEU 3.2 17.9 - - - -
908S SER* 2.7 42.7 + - - -
909S GLU 3.1 0.4 + - - -
911S HIS* 1.3 77.1 - - - +
913S LYS* 1.3 64.4 + - - +
914S LYS 3.2 2.7 - - - -
915S TYR* 3.0 14.2 + + + -
916S LEU* 2.8 26.5 + - + +
929S PHE* 3.7 13.9 - + - -
932S ILE* 3.6 37.9 - - + -
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Residues in contact with LYS 913 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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37R GLU* 3.1 26.7 + - + +
40R TYR* 6.0 0.7 - - - +
909S GLU 3.4 3.4 + - - +
910S ASP* 3.7 30.5 - - + +
911S HIS 3.2 4.5 - - - -
912S TYR* 1.3 75.4 - - - +
914S LYS* 1.3 63.9 + - + +
916S LEU* 3.7 8.1 + - - +
917S ALA* 3.2 21.5 + - - +
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Residues in contact with LYS 914 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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906S GLU* 3.1 55.5 + - + +
907S LEU* 3.9 12.5 + - + +
909S GLU* 4.6 5.2 + - - +
912S TYR 3.2 0.4 - - - -
913S LYS* 1.3 80.2 - - + +
915S TYR* 1.3 60.4 + - - +
917S ALA* 3.2 7.4 + - + +
918S LYS* 2.9 30.1 + - - +
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Residues in contact with TYR 915 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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868S PHE* 3.4 45.8 - + + -
872S LEU* 5.3 6.3 - - + -
907S LEU* 3.4 34.0 + - + +
912S TYR* 3.0 17.3 + + + +
914S LYS* 1.3 74.9 - - - +
916S LEU* 1.3 79.9 + - + +
918S LYS* 3.3 1.3 + - - +
919S LEU* 3.0 38.2 + - + +
928S PRO* 3.4 14.4 - - - +
929S PHE* 2.7 35.8 + - + -
932S ILE* 3.5 34.5 - - + -
933S TYR* 5.4 0.5 - - - -
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Residues in contact with LEU 916 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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35R THR* 5.6 11.0 - - + +
911S HIS 4.6 10.3 - - - +
912S TYR* 2.8 22.4 + - + +
913S LYS* 4.0 7.0 - - - +
915S TYR* 1.3 98.3 - - + +
917S ALA* 1.3 61.6 + - - +
919S LEU* 3.6 9.2 + - + +
920S ARG* 3.4 29.9 + - - +
932S ILE* 4.0 21.8 - - + -
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Residues in contact with ALA 917 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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913S LYS* 3.2 13.6 + - + +
914S LYS* 3.5 11.2 - - - +
915S TYR 3.1 0.2 - - - -
916S LEU* 1.3 77.3 - - - +
918S LYS* 1.3 64.4 + - - +
920S ARG* 3.3 11.6 + - - +
921S SER* 3.1 21.9 + - - -
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Residues in contact with LYS 918 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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863S GLN* 3.1 38.0 + - - +
866S ASN* 5.2 4.9 - - - +
868S PHE* 4.1 24.0 - - + -
903S GLU* 4.5 9.9 + - - -
907S LEU* 4.2 16.6 - - + +
914S LYS 2.9 17.0 + - - +
915S TYR* 3.3 4.0 + - - +
917S ALA* 1.3 74.0 - - - +
919S LEU* 1.3 66.6 + - - +
921S SER* 3.2 24.5 + - - +
922S ILE* 3.2 22.9 + - + +
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Residues in contact with LEU 919 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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868S PHE* 4.4 10.7 - - + -
915S TYR* 3.0 51.1 + - + +
916S LEU* 3.7 11.4 - - + +
918S LYS* 1.3 73.8 - - - +
920S ARG* 1.3 64.8 + - + +
922S ILE* 3.2 28.6 + - + +
926S CYS* 4.1 16.8 - - - -
928S PRO* 4.2 6.1 - - + -
933S TYR* 3.9 22.0 - - + +
970S GLU* 4.6 4.9 - - - +
974S TYR* 3.7 37.0 + - + +
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Residues in contact with ARG 920 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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916S LEU* 3.4 16.4 + - - +
917S ALA* 3.3 10.9 + - - +
918S LYS 3.2 0.4 - - - -
919S LEU* 1.3 81.6 - - + +
921S SER* 1.3 60.2 + - - +
922S ILE 3.3 6.8 + - - +
970S GLU* 5.2 13.4 + - - -
974S TYR* 4.7 7.6 - - - +
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Residues in contact with SER 921 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
917S ALA 3.1 12.1 + - - -
918S LYS* 3.2 18.0 + - - +
920S ARG* 1.3 80.1 - - - +
922S ILE* 1.3 64.7 + - - +
923S ASN* 4.3 3.5 + - - +
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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
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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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