Contacts of the helix formed by residues 68 - 73 (chain G) in PDB entry 2WSC
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 ILE 68 (chain G).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1031 LEU* 5.4 4.7 - - + -
15G SER 4.3 2.4 - - - +
16G LEU* 2.9 55.6 + - + +
20G ARG* 5.2 6.3 - - + -
64G VAL 4.4 4.0 - - - +
65G GLY* 3.1 37.2 - - - +
66G PHE 2.8 3.6 + - - +
67G ASN* 1.3 75.6 + - - +
69G VAL* 1.3 55.1 + - + +
70G ASP 2.9 5.0 + - - -
71G VAL* 4.8 0.9 - - - +
72G LEU* 2.2 72.4 + - + +
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Residues in contact with VAL 69 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1001 ILE* 6.4 2.0 - - + -
65G GLY 5.9 0.2 - - - +
66G PHE* 2.6 67.1 + - + +
68G ILE* 1.3 75.1 - - + +
70G ASP* 1.3 53.4 + - - +
72G LEU* 4.0 12.1 - - + -
73G ALA* 2.6 49.4 + - + +
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Residues in contact with ASP 70 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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66G PHE* 2.9 35.3 - - - +
67G ASN* 2.8 42.2 + - - +
68G ILE 2.9 2.4 + - - -
69G VAL* 1.3 78.7 - - - +
71G VAL* 1.3 74.5 + - + +
73G ALA* 3.1 9.5 + - - +
74G TRP* 4.2 1.9 + - - +
75G GLY 4.0 2.4 + - - -
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Residues in contact with VAL 71 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
12G THR* 6.5 0.7 - - - -
15G SER* 4.7 17.7 - - - +
67G ASN* 4.3 11.9 - - - +
68G ILE 4.8 0.7 - - - +
70G ASP* 1.3 82.0 - - + +
72G LEU* 1.3 53.1 + - + +
73G ALA 2.2 26.7 - - - +
75G GLY* 2.9 26.8 - - - +
76G SER* 2.4 13.3 + - - +
80G ILE* 6.0 0.2 - - + -
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Residues in contact with LEU 72 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12G THR* 2.7 57.7 - - + +
13G GLY 4.2 0.2 - - - +
15G SER 5.2 1.1 - - - +
16G LEU* 3.8 5.4 - - + +
68G ILE* 2.2 65.7 + - + +
69G VAL* 4.3 9.0 - - + -
70G ASP 3.0 0.4 - - - -
71G VAL* 1.3 76.1 - - + +
73G ALA* 1.3 57.2 + - - +
76G SER* 2.8 24.6 + - - -
77G ILE* 5.0 5.2 + - - +
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Residues in contact with ALA 73 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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69G VAL* 2.6 42.9 + - + +
70G ASP 3.1 3.6 + - - +
71G VAL 2.2 15.9 - - - +
72G LEU* 1.3 73.6 - - + +
74G TRP* 1.4 56.6 - - + +
75G GLY 2.1 24.7 + - - -
76G SER* 3.0 7.3 + - - -
77G ILE* 5.4 4.0 - - - -
78G GLY 5.5 0.9 - - - -
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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