Contacts of the strand formed by residues 78 - 83 (chain B) in PDB entry 4I6J
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 CYS 78 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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75B LEU 4.9 2.8 - - - +
76B TRP* 3.1 9.3 + - - +
77B ARG* 1.3 86.8 - - + +
79B PHE* 1.3 76.6 + - - +
110B LEU* 4.2 2.3 - - - +
112B TYR* 3.3 22.0 - - + -
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Residues in contact with PHE 79 (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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53B LEU* 4.5 15.3 - - + -
76B TRP* 3.8 26.7 - + + -
78B CYS* 1.3 83.2 - - - +
80B GLU* 1.3 95.2 + - - +
81B PHE* 3.7 37.7 + + + -
94B THR* 4.0 11.2 - - + -
98B LEU* 3.3 31.2 - - + -
102B ILE* 4.6 4.7 - - + -
110B LEU* 4.2 15.0 - - + +
112B TYR 2.9 10.7 + - - +
113B VAL* 3.3 9.5 - - + +
114B SER 3.1 22.5 + - - +
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Residues in contact with GLU 80 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
508A GLN* 5.1 5.0 - - - +
79B PHE* 1.3 89.8 - - - +
81B PHE* 1.3 62.4 + - - +
82B GLU* 3.5 13.0 + - - +
94B THR* 4.1 1.7 + - - -
114B SER* 2.7 27.7 + - - +
116B LYS* 3.5 48.4 + - + +
145B ILE* 5.3 2.3 - - - +
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Residues in contact with PHE 81 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
79B PHE* 4.0 27.4 - + + -
80B GLU* 1.3 71.3 - - - +
82B GLU* 1.3 60.5 + - - +
83B LEU* 3.7 7.0 + - + +
94B THR* 3.8 4.0 - - + -
99B ILE* 4.3 35.0 - - + -
102B ILE* 4.2 27.4 - - + -
103B ILE* 5.4 3.8 - - + -
110B LEU* 5.0 4.0 - - + -
113B VAL* 4.1 24.0 - - + -
114B SER 2.8 14.0 + - - +
115B PHE* 3.6 39.6 - + + -
116B LYS* 2.9 31.2 + - - +
130B ILE* 4.4 17.7 - - + -
134B LEU* 5.9 3.6 - - + -
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Residues in contact with GLU 82 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
80B GLU* 4.1 14.3 - - - +
81B PHE* 1.3 72.1 - - - +
83B LEU* 1.3 67.6 + - - +
84B ASN* 3.8 12.3 + - - +
91B LEU* 5.1 8.2 - - - +
92B LYS 3.8 12.6 - - - +
93B ALA* 3.5 6.2 - - - +
94B THR* 2.8 34.6 + - - +
116B LYS* 2.7 52.1 + - - +
147B THR* 5.3 1.4 + - - -
162C GLU* 3.4 25.1 - - - +
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Residues in contact with LEU 83 (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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81B PHE* 4.5 7.2 - - + +
82B GLU* 1.3 81.7 - - - +
84B ASN* 1.3 61.6 + - - +
93B ALA* 5.0 1.3 - - + -
94B THR 5.8 0.2 - - - +
99B ILE* 4.4 22.4 - - + -
115B PHE* 3.7 15.9 - - + -
116B LYS 3.0 9.7 + - - +
117B VAL* 3.6 14.9 - - + -
118B ASP 3.1 24.1 + - - -
123B SER* 3.3 16.9 + - - +
126B ALA* 3.9 12.8 - - + -
127B ALA* 3.3 46.4 - - + +
130B ILE* 4.3 5.8 - - + -
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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