Contacts of the helix formed by residues 61 - 66 (chain E) in PDB entry 5USJ
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 GLN 61 (chain E).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12E ASP* 3.8 28.0 + - + +
32E TYR* 3.8 14.8 + - - -
34E PRO* 3.6 30.0 - - + +
35E THR 5.5 2.0 + - - +
59E ALA* 3.3 5.5 - - + +
60E GLY* 1.3 76.8 - - - +
62E GLU* 1.3 65.1 + - - +
63E GLU* 3.2 13.1 - - + +
64E TYR* 3.1 43.1 + - + +
65E SER 4.1 1.6 + - - -
68E ARG* 4.6 1.7 + - - -
1002E GNP 4.2 2.8 + - - +
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Residues in contact with GLU 62 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
60E GLY 3.4 5.3 + - - +
61E GLN* 1.3 73.0 - - - +
63E GLU* 1.3 56.6 + - - +
65E SER* 2.9 36.7 + - - -
68E ARG* 3.2 36.3 + - - +
92E ASP* 5.7 2.3 - - - +
96E TYR* 5.7 2.3 - - - -
36F ILE* 3.9 28.5 - - + +
64F TYR* 5.5 6.6 - - + -
67F MET* 3.9 34.9 - - + +
70F GLN* 4.7 3.0 + - - -
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Residues in contact with GLU 63 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
88C LYS* 2.6 33.7 + - - -
61E GLN* 4.2 12.8 - - + +
62E GLU* 1.3 76.8 - - - +
64E TYR* 1.3 84.9 + - + +
65E SER 3.4 1.0 + - - -
66E ALA* 5.1 2.1 + - - +
67F MET* 5.7 1.9 - - - +
70F GLN* 3.2 31.8 + - - +
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Residues in contact with TYR 64 (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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62C GLU* 4.7 11.9 - - + -
88C LYS* 3.3 14.8 + - - -
92C ASP* 5.7 0.3 + - - -
34E PRO* 6.4 0.9 - - + -
35E THR 4.4 4.9 - - - -
36E ILE* 3.8 43.2 - - + +
59E ALA* 3.7 33.2 - - + +
61E GLN* 3.1 25.5 + - + +
62E GLU 3.1 1.0 - - - -
63E GLU* 1.3 111.2 + - + +
65E SER* 1.3 63.8 + - - +
66E ALA* 3.2 5.4 + - - +
67E MET* 3.2 33.8 + - - +
68E ARG* 4.5 2.7 + - - +
71E TYR* 6.0 0.3 - - - -
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Residues in contact with SER 65 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
61E GLN 4.1 0.4 + - - -
62E GLU* 2.9 26.0 + - - -
63E GLU 3.4 1.2 - - - -
64E TYR* 1.3 77.8 - - - +
66E ALA* 1.3 63.9 + - - +
67E MET 3.1 0.9 + - - -
68E ARG* 3.2 54.3 + - - +
69E ASP 4.8 0.3 + - - -
99E GLN* 4.7 3.7 + - - -
37F GLU* 4.6 10.7 + - - +
67F MET* 4.9 2.4 - - - +
70F GLN* 5.1 4.9 + - - -
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Residues in contact with ALA 66 (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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63E GLU 5.1 2.1 + - - +
64E TYR* 3.2 2.5 + - - +
65E SER* 1.3 79.8 + - - +
67E MET* 1.3 62.9 + - + +
68E ARG 3.2 0.9 + - - -
69E ASP* 4.2 9.9 + - - +
70E GLN* 5.1 0.9 + - - +
70F GLN* 6.0 3.0 - - - +
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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