Contacts of the strand formed by residues 88 - 93 (chain E) in PDB entry 1I3R
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 88 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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86E ALA 4.2 0.6 + - - +
87E PRO* 1.3 73.5 - - - +
89E VAL* 1.3 60.2 + - - +
90E THR* 5.4 2.2 - - - +
108E PHE* 3.5 2.6 - - - +
109E ILE* 3.6 2.4 - - - -
110E ASP* 2.9 43.9 + - + +
111E LYS* 3.3 41.0 + - + +
174E LEU* 5.3 0.7 - - - -
23H GLY 4.2 17.6 - - - +
24H SER* 4.4 16.0 + - - +
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Residues in contact with VAL 89 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
87E PRO* 3.9 4.9 + - + +
88E GLU* 1.3 79.0 - - - +
90E THR* 1.3 67.6 + - - +
107E CYS* 3.8 26.7 - - - -
108E PHE 3.4 3.4 - - - +
109E ILE* 4.5 7.9 - - + -
163E CYS* 4.8 2.9 - - - +
165E VAL* 3.8 31.4 - - + -
174E LEU* 3.7 25.4 - - + +
176E LYS* 2.9 47.1 + - + +
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Residues in contact with THR 90 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
88E GLU* 5.4 1.9 - - - +
89E VAL* 1.3 78.4 + - - +
91E VAL* 1.3 68.5 + - - +
92E LEU* 4.1 20.8 + - + +
106E ILE 3.4 1.4 - - - +
107E CYS* 3.5 1.9 - - - -
108E PHE* 2.7 54.2 + - + +
176E LYS* 4.3 5.6 + - - +
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Residues in contact with VAL 91 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
90E THR* 1.3 79.5 - - - +
92E LEU* 1.3 64.7 + - - +
105E LEU* 4.6 7.0 - - + -
106E ILE 3.2 8.1 - - - +
107E CYS* 4.2 5.2 - - - -
121E TRP* 4.3 17.7 - - + -
161E TYR 6.4 0.2 - - - -
162E ASP* 6.5 0.2 - - - -
163E CYS* 3.5 31.6 - - + +
176E LYS* 3.6 29.9 - - + +
177E HIS 4.7 2.9 - - - +
178E TRP* 3.5 41.3 - - + -
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Residues in contact with LEU 92 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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90E THR* 4.1 20.6 - - + +
91E VAL* 1.3 77.2 - - - +
93E SER* 1.3 63.2 + - - +
105E LEU* 3.7 7.2 - - - +
106E ILE* 2.7 58.6 + - + +
108E PHE* 4.7 6.5 - - + -
178E TRP* 4.3 5.4 - - - +
174F VAL* 3.8 26.5 - - + -
176F ASN* 4.8 0.7 - - - +
182F GLN* 3.7 25.4 - - - +
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Residues in contact with SER 93 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
92E LEU* 1.3 76.7 - - - +
94E ARG* 1.3 60.1 + - - +
95E SER 3.1 16.9 + - - -
96E PRO* 4.4 1.4 - - - +
97E VAL* 3.4 29.8 - - - +
103E ASN* 4.6 1.3 - - - -
104E ILE 3.5 7.9 - - - -
105E LEU* 4.1 4.9 - - - -
178E TRP* 4.1 15.3 - - - +
182F GLN* 2.9 24.4 + - - +
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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