Contacts of the strand formed by residues 84 - 88 (chain B) in PDB entry 1IK9
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 TYR 84 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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69B GLU* 3.0 19.2 + - - -
72B LYS* 3.5 36.2 - - + +
73B ALA* 3.5 22.0 - - + -
83B VAL* 1.3 87.7 - - - +
85B THR* 1.3 61.0 + - - +
86B PHE* 3.5 31.9 - - + -
97B PHE* 5.0 2.0 - + + -
98B GLU 3.5 12.3 - - - +
99B LYS* 3.7 28.4 + - + -
100B ASN* 4.2 0.2 - - - -
108B LEU* 3.4 26.2 - - + -
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Residues in contact with THR 85 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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11B VAL* 3.7 16.2 - - + +
83B VAL* 5.7 1.2 - - - +
84B TYR* 1.3 71.7 + - - +
86B PHE* 1.3 65.7 + - - +
87B ASN* 3.3 20.4 - - - +
97B PHE* 2.9 10.0 - - - +
98B GLU* 2.9 50.4 + - + +
100B ASN* 3.0 25.7 + - - +
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Residues in contact with PHE 86 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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8B ILE* 4.0 30.3 - - + -
9B HIS 4.0 16.5 + - - +
10B LEU* 3.3 19.0 - - + -
11B VAL* 2.9 29.9 + - - +
20B LEU* 4.6 11.4 - - + -
73B ALA 3.4 27.1 - - - -
74B LEU* 4.8 1.3 - - + -
76B SER* 5.6 3.8 - - - -
84B TYR* 3.5 31.6 - - + -
85B THR* 1.3 74.3 - - - +
87B ASN* 1.3 63.8 + - - +
95B PHE* 3.7 19.1 - + + -
96B PHE 3.7 2.7 - - - -
97B PHE* 3.7 24.7 - + + -
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Residues in contact with ASN 87 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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10B LEU* 4.3 2.2 - - - -
11B VAL* 3.4 23.9 - - + +
12B SER* 5.8 0.9 - - - +
85B THR* 3.3 23.8 + - - +
86B PHE* 1.3 82.7 - - - +
88B PHE* 1.3 60.9 + - - +
94B TYR 4.5 0.7 - - - -
95B PHE* 3.4 6.9 - - - -
96B PHE* 2.8 82.1 + - + +
98B GLU* 4.2 2.2 + - - +
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Residues in contact with PHE 88 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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10B LEU* 3.6 32.2 - - + +
12B SER* 3.5 20.6 + - - -
13B GLU* 5.6 0.5 - - - +
36B LEU* 3.5 22.9 - - + -
43B TRP* 3.5 51.6 - + - -
87B ASN* 1.3 76.8 - - - +
89B SER* 1.3 67.2 + - - +
90B LYS* 3.9 26.0 + - + +
93B ALA* 3.4 28.3 - - - -
94B TYR 3.5 13.7 - - - -
95B PHE* 3.9 13.2 - - + -
113B LEU* 4.1 8.5 - - + -
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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