Contacts of the helix formed by residues 80 - 84 (chain E) in PDB entry 2P5W
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 ALA 80 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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13E THR* 4.8 1.8 - - + -
78E SER 4.4 3.8 - - - +
79E ALA* 1.3 75.0 - - - +
81E PRO* 1.3 71.5 - - + +
82E SER* 4.1 15.3 - - - +
83E GLN* 2.8 37.4 + - - +
110E VAL* 3.4 10.5 - - - +
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Residues in contact with PRO 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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13E THR* 3.7 26.2 - - + +
80E ALA* 1.3 85.5 - - + +
82E SER* 1.3 56.5 + - - +
83E GLN 3.1 2.5 + - - -
84E THR* 3.0 23.7 + - - -
110E VAL* 3.7 21.3 - - - +
112E GLU* 5.3 6.5 - - + +
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Residues in contact with SER 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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34E ARG* 2.8 32.7 + - - -
80E ALA* 3.0 13.4 + - - +
81E PRO* 1.3 77.5 - - - +
83E GLN* 1.3 55.4 + - - +
84E THR 3.3 3.4 + - - +
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Residues in contact with GLN 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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34E ARG* 3.8 6.1 - - - +
60E ASN 4.3 1.6 + - - -
61E GLY* 3.5 32.3 + - - -
62E TYR* 3.6 25.8 - - + +
76E LEU* 4.1 16.4 - - + +
78E SER 3.5 8.4 + - - +
79E ALA* 3.3 11.4 - - - -
80E ALA* 2.8 35.6 + - + +
82E SER* 1.3 84.4 - - - +
84E THR* 1.3 64.1 + - - +
85E SER 3.1 3.3 + - - -
87E TYR* 2.6 32.6 + - - +
108E LEU* 4.3 4.0 - - - +
110E VAL* 4.5 5.1 - - + +
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Residues in contact with THR 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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34E ARG* 3.8 3.5 + - - -
36E ASP* 3.7 8.8 - - - +
37E PRO* 5.5 1.7 - - - +
80E ALA 4.1 0.6 + - - -
81E PRO 3.0 17.9 + - - -
82E SER 4.2 1.6 - - - +
83E GLN* 1.3 74.6 - - - +
85E SER* 1.3 62.7 + - - +
108E LEU 3.3 16.2 - - - +
109E THR* 3.9 17.0 - - + +
110E VAL* 2.8 28.3 + - - +
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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