Contacts of the helix formed by residues 80 - 89 (chain C) in PDB entry 3W1Y
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 THR 80 (chain C).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
32C THR 3.1 28.9 + - - +
33C GLY* 4.0 12.8 - - - +
78C GLU 3.9 9.0 - - - +
79C PRO* 1.3 77.5 - - - +
81C GLU* 1.3 64.6 + - - +
82C LYS* 3.1 20.7 + - - +
83C THR* 3.1 21.3 + - - +
84C VAL* 3.6 10.9 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 81 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
80C THR* 1.3 75.1 - - - +
82C LYS* 1.3 78.3 - - + +
83C THR 3.3 0.2 + - - -
84C VAL* 3.7 4.1 + - - +
85C ASP* 3.6 19.9 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 82 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
32C THR* 3.6 17.8 - - + +
80C THR* 3.1 13.2 + - - +
81C GLU* 1.3 95.2 - - + +
83C THR* 1.3 62.2 + - - +
85C ASP* 3.9 7.6 - - - +
86C ALA* 3.2 25.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 83 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
6C ILE* 4.7 0.9 - - + -
28C THR* 5.1 0.6 - - - +
29C ALA* 4.5 6.7 - - - -
32C THR* 2.6 26.4 + - - +
34C ALA* 3.6 10.8 - - + +
76C ILE* 4.0 29.4 - - + -
79C PRO* 4.0 7.0 - - + -
80C THR* 3.1 30.7 + - - -
82C LYS* 1.3 75.4 - - - +
84C VAL* 1.3 60.8 + - - +
86C ALA* 3.2 5.2 + - - +
87C LEU* 3.0 39.2 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 84 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
6C ILE* 3.9 24.5 - - + -
79C PRO* 4.7 4.3 - - + -
80C THR 3.6 10.6 + - - +
81C GLU* 3.7 5.6 + - - +
82C LYS 3.5 0.2 - - - -
83C THR* 1.3 74.3 - - - +
85C ASP* 1.3 64.5 + - - +
87C LEU* 3.0 12.3 + - + +
88C MET* 2.9 46.2 + - + +
102C LEU* 6.3 1.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 85 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
81C GLU 3.6 15.3 + - - +
82C LYS* 3.9 8.6 - - - +
84C VAL* 1.3 80.8 - - - +
86C ALA* 1.3 61.5 + - - +
88C MET* 3.4 15.9 + - + +
89C ARG* 2.7 62.2 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 86 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
28C THR* 3.6 26.2 - - + +
31C ARG* 5.7 2.5 - - - +
32C THR* 3.9 11.4 - - + -
82C LYS 3.2 18.6 + - - +
83C THR 3.4 4.5 - - - +
85C ASP* 1.3 81.3 + - - +
87C LEU* 1.3 63.9 + - - +
89C ARG* 3.3 7.5 + - - +
90C LEU* 3.3 21.3 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 87 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
6C ILE* 4.3 22.0 - - + -
8C ILE* 4.3 10.5 - - + -
25C ILE* 4.4 19.7 - - + +
28C THR* 4.4 10.5 - - + -
29C ALA 5.3 0.7 - - - +
76C ILE* 3.8 30.5 - - + -
83C THR* 3.0 22.4 + - + +
84C VAL* 3.0 9.4 + - + +
86C ALA* 1.3 77.1 - - - +
88C MET* 1.3 64.1 + - + +
90C LEU* 3.1 34.3 + - + +
100C ILE* 5.5 9.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with MET 88 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
84C VAL* 2.9 27.0 + - + +
85C ASP* 3.4 31.6 - - + +
87C LEU* 1.3 78.9 - - + +
89C ARG* 1.3 72.7 + - + +
90C LEU 3.6 2.8 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 89 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
85C ASP* 2.7 60.9 + - - +
86C ALA* 3.3 7.6 + - - +
87C LEU 3.2 0.8 - - - -
88C MET* 1.3 89.9 - - + +
90C LEU* 1.3 63.4 + - - +
91C ASP* 3.4 16.3 + - - +
----------------------------------------------------------
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