Contacts of the helix formed by residues 80 - 84 (chain E) in PDB entry 3SKJ
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 ASP 80 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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78E VAL 4.0 0.2 + - - -
79E ARG* 1.3 70.2 - - - +
81E CYS* 1.3 60.0 + - - +
82E ASN* 2.9 34.7 + - - +
83E SER* 2.5 40.1 + - - +
84E PHE* 3.8 4.2 - - - -
93E GLU* 3.7 11.2 - - - +
126E ILE* 3.9 28.9 - - + +
127E THR 3.0 18.6 + - - +
128E VAL* 4.1 17.2 - - - +
129E SER 5.3 0.2 + - - -
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Residues in contact with CYS 81 (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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79E ARG 3.3 2.5 + - - -
80E ASP* 1.3 71.4 + - - +
82E ASN* 1.3 62.1 + - - +
84E PHE* 2.9 32.1 + - - +
87E GLY 5.2 3.6 - - - +
88E ALA* 6.1 0.9 - - - +
91E CYS* 2.1 60.6 - - + +
92E LYS* 3.4 6.7 - - - -
93E GLU* 3.3 34.2 + - - +
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Residues in contact with ASN 82 (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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80E ASP* 2.9 27.0 + - - +
81E CYS* 1.3 75.0 - - - +
83E SER* 1.3 60.0 + - - +
84E PHE* 3.1 5.4 + - - -
85E PRO* 4.9 1.0 - - - +
88E ALA* 6.2 2.4 - - - +
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Residues in contact with SER 83 (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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79E ARG* 4.2 13.8 + - - +
80E ASP* 2.5 35.6 + - - -
82E ASN* 1.3 77.6 - - - +
84E PHE* 1.3 69.3 + - - +
85E PRO* 3.3 11.2 - - - +
127E THR 4.9 0.3 + - - -
129E SER* 3.7 32.7 - - - -
98H GLY* 3.3 18.1 - - - -
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Residues in contact with PHE 84 (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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46E CYS* 4.2 2.7 - - - -
48E VAL* 3.8 28.3 - - + -
49E MET* 4.8 4.9 - - - -
79E ARG* 3.4 42.4 - - + -
80E ASP 3.8 13.0 - - - -
81E CYS* 2.9 24.8 + - - +
82E ASN* 3.1 3.7 - - - -
83E SER* 1.3 79.2 - - - +
85E PRO* 1.3 71.9 - - - +
86E GLY 3.2 0.2 + - - -
87E GLY* 3.0 16.9 + - - -
91E CYS* 4.1 7.0 - - - -
164E CYS* 4.0 21.8 - - + -
97H SER 4.7 0.2 - - - -
98H GLY 3.3 18.2 - - - +
100H TYR* 3.5 31.0 - - - -
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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