Contacts of the strand formed by residues 113 - 117 (chain E) in PDB entry 3IFS
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 GLN 113 (chain E).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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75E ASP* 2.9 11.1 + - - +
76E ILE* 3.4 29.4 - - + +
77E LEU 2.8 25.1 + - - -
101E TYR* 4.1 1.3 - - - -
102E ASN* 3.0 45.1 + - - +
104E LEU 5.3 0.2 + - - -
109E ARG* 3.3 32.8 + - - +
111E THR 3.7 1.0 + - - -
112E PRO* 1.3 74.6 - - - +
114E VAL* 1.3 59.5 + - - +
115E LEU* 3.9 10.5 - - + +
132E VAL* 4.1 8.8 - - - +
136E LYS* 5.2 7.3 + - - -
103F THR* 3.3 20.8 - - - +
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Residues in contact with VAL 114 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
77E LEU* 3.4 11.0 - - + +
79E VAL* 3.7 29.6 - - + -
93E ILE* 3.7 26.2 - - + +
101E TYR* 4.0 6.4 - - + +
102E ASN* 3.6 19.6 + - - -
112E PRO 3.7 9.9 - - - +
113E GLN* 1.3 78.7 - - - +
115E LEU* 1.3 59.7 + - - +
116E PHE* 4.0 15.5 - - + -
219E PRO* 4.3 7.4 - - + +
222E VAL* 4.5 10.8 - - + -
223E SER* 4.1 27.8 - - - +
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Residues in contact with LEU 115 (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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76E ILE* 3.9 25.4 - - + -
77E LEU 2.9 8.4 + - - +
78E LEU* 3.3 16.2 - - + +
79E VAL* 2.8 26.0 + - - +
102E ASN* 3.9 24.2 - - + +
113E GLN* 4.4 11.2 - - + +
114E VAL* 1.3 80.3 - - - +
116E PHE* 1.3 63.2 + - - +
125E TYR* 5.6 0.4 - - - +
129E LEU* 3.3 28.5 - - + -
132E VAL* 3.9 23.6 - - + -
133E LEU* 5.1 0.2 - - + -
100F PHE* 4.6 18.8 - - + -
103F THR* 5.8 1.1 - - + -
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Residues in contact with PHE 116 (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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78E LEU* 4.5 0.2 - - - -
79E VAL* 3.4 36.3 - - + +
81E GLY 5.9 1.1 - - - +
86E TYR* 3.4 45.1 - + + -
89E ALA* 4.4 5.6 - - + -
90E ARG* 3.7 52.5 - - + +
93E ILE* 4.1 19.7 - - + -
114E VAL* 4.0 19.7 - - + -
115E LEU* 1.3 75.2 - - - +
117E VAL* 1.3 62.3 + - - +
119E GLN* 3.4 8.1 + - - +
125E TYR* 2.7 33.7 + - - +
129E LEU* 4.3 2.3 - - - +
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Residues in contact with VAL 117 (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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78E LEU* 3.5 31.4 - - + -
79E VAL 2.8 16.3 + - - +
80E VAL* 3.1 20.9 - - + -
81E GLY 3.1 16.8 + - - +
116E PHE* 1.3 76.8 - - - +
118E GLY* 1.3 67.5 + - - +
119E GLN* 3.1 9.3 + - - -
120E ASN* 5.8 0.2 - - - +
125E TYR* 4.4 5.8 - - + -
126E MSE 3.7 19.3 - - + -
129E LEU* 3.5 15.7 - - + -
155E ALA* 4.2 4.3 - - + -
159E PHE* 3.6 29.8 - - + -
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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