Contacts of the helix formed by residues 113 - 120 (chain W) in PDB entry 5OA3
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 HIS 113 (chain W).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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86W LEU* 3.6 24.6 - - + +
90W GLN* 3.0 30.7 - - + +
94W LEU* 4.7 4.8 - - + +
100W GLY 3.5 12.6 - - - -
101W PHE* 3.5 31.1 - + - -
102W ILE* 3.0 38.4 + - + +
104W LEU* 4.6 8.5 - - + -
112W ASP* 1.3 72.1 - - - +
114W GLU* 1.3 80.0 + - + +
116W ALA* 3.4 3.3 + - - +
117W ARG* 2.9 36.4 + - - +
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Residues in contact with GLU 114 (chain W).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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101W PHE* 4.2 17.4 - - + -
112W ASP* 3.1 6.7 - - + +
113W HIS* 1.3 97.3 + - + +
115W GLU* 1.3 65.0 + - - +
117W ARG* 2.9 20.7 + - + +
118W ARG* 3.0 43.7 + - + +
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Residues in contact with GLU 115 (chain W).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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40W VAL* 5.3 2.4 - - - +
111W MET* 3.2 33.3 - - + +
112W ASP* 3.5 24.0 + - + +
114W GLU* 1.3 79.1 - - - +
116W ALA* 1.3 58.0 + - - +
118W ARG* 3.0 28.8 + - + +
119W LYS* 2.9 49.6 + - + +
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Residues in contact with ALA 116 (chain W).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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83W LEU* 4.4 3.1 - - + +
86W LEU* 5.7 1.1 - - + -
104W LEU* 3.7 23.8 - - + -
111W MET* 3.9 14.3 - - - -
112W ASP 3.2 14.9 + - - +
113W HIS 3.7 3.6 - - - +
114W GLU 3.1 0.8 - - - -
115W GLU* 1.3 75.6 - - - +
117W ARG* 1.3 60.5 - - - +
118W ARG 3.2 1.3 - - - -
119W LYS* 4.2 2.0 - - - +
120W HIS* 2.9 23.0 + - - -
121W THR* 3.1 33.3 + - - +
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Residues in contact with ARG 117 (chain W).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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62J THR 5.3 5.2 + - - -
64J ASP* 6.2 4.3 - - - -
83W LEU* 4.4 23.7 + - + +
86W LEU* 4.0 17.3 - - + +
87W GLU* 3.3 41.7 + - - +
90W GLN* 3.5 26.8 + - - +
113W HIS* 2.9 21.3 + - - +
114W GLU* 2.9 14.4 + - + +
116W ALA* 1.3 77.6 - - - +
118W ARG* 1.3 63.8 + - + +
120W HIS* 3.7 8.9 + - - +
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Residues in contact with ARG 118 (chain W).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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114W GLU* 3.0 43.9 + - + +
115W GLU* 3.0 45.2 - - + +
117W ARG* 1.3 76.1 - - + +
119W LYS* 1.3 61.0 + - + +
120W HIS* 3.0 13.1 + - - +
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Residues in contact with LYS 119 (chain W).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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108W ALA* 3.9 28.4 + - + +
111W MET* 3.7 25.6 - - + +
115W GLU* 2.9 39.1 + - + +
116W ALA* 3.5 4.7 + - - +
118W ARG* 1.3 71.9 - - + +
120W HIS* 1.3 71.2 + - - +
121W THR* 3.2 18.8 - - + +
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Residues in contact with HIS 120 (chain W).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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8052 U 3.1 30.1 + - - +
8062 U 2.8 32.8 + - - -
83W LEU* 3.7 23.6 - - + +
116W ALA 2.9 8.3 + - - -
117W ARG 3.7 7.1 + - - +
118W ARG 3.0 8.1 - - - +
119W LYS* 1.3 82.4 - - - +
121W THR* 1.3 60.1 + - - +
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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