Contacts of the strand formed by residues 27 - 31 (chain E) in PDB entry 1QG1
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 27 (chain E).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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19E LEU* 3.1 8.8 - - + +
22E GLN* 2.8 42.8 - - + -
24E HIS* 3.1 10.7 + - + +
26E GLY* 1.3 82.7 - - - +
28E PHE* 1.3 57.7 + - - +
44E VAL* 3.0 19.9 - - - +
45E LYS* 3.0 5.1 + - + -
94E ARG* 3.3 16.6 - - + +
95E ASP 3.8 4.9 - - - +
96E ILE* 3.2 6.7 - - + -
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Residues in contact with PHE 28 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
5E TRP* 2.8 66.1 - + + +
26E GLY 3.6 0.2 - - - +
27E ALA* 1.3 75.5 - - - +
29E LEU* 1.3 75.1 + - - +
30E ILE* 3.9 5.4 - - + -
42E LEU* 3.5 7.9 - - + -
43E SER 3.1 9.9 - - - +
44E VAL* 3.9 0.4 - - + -
77E VAL* 2.8 39.7 - - + -
81E ARG* 4.9 2.2 - - - -
93E LEU* 2.8 50.5 - - + -
94E ARG 2.7 33.3 + - - +
96E ILE* 2.7 26.2 + - - +
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Residues in contact with LEU 29 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
5E TRP* 2.8 18.8 - - - +
7E PHE* 3.2 35.2 - - + -
10E ILE* 4.2 0.7 - - + -
15E ALA* 2.9 55.4 - - + +
18E MET* 4.8 4.0 - - + -
19E LEU* 4.3 0.2 - - + -
28E PHE* 1.3 82.9 - - - +
30E ILE* 1.3 70.8 + - - +
31E ARG* 3.7 5.6 - - + -
42E LEU* 3.1 5.4 - - - +
43E SER* 2.9 32.7 + - - +
96E ILE* 3.6 17.0 - - + -
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Residues in contact with ILE 30 (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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5E TRP* 2.9 41.5 + - + -
6E PHE* 2.7 48.6 - - + +
7E PHE* 2.9 14.0 + - - +
28E PHE* 3.9 8.3 - - + -
29E LEU* 1.3 75.1 - - - +
31E ARG* 1.3 62.4 + - - +
40E PHE* 4.5 5.6 - - + -
41E SER 3.2 10.8 - - - +
42E LEU* 3.2 28.5 - - + -
55E VAL* 5.1 7.4 - - + -
65E LEU* 5.2 5.6 - - + -
73E LEU* 4.2 21.3 - - + +
76E LEU* 5.9 0.7 - - + -
77E VAL* 4.3 7.2 - - + -
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Residues in contact with ARG 31 (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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6E PHE* 4.1 3.8 - - - -
7E PHE* 4.9 0.7 - - - -
8E GLY 4.5 3.6 - - - +
10E ILE* 3.6 15.3 + - + +
11E PRO 3.6 1.8 - - - -
12E ARG* 2.9 37.5 - - - +
15E ALA* 3.8 4.7 - - - -
29E LEU* 3.7 10.3 - - + -
30E ILE* 1.3 78.2 - - - +
32E GLU* 1.3 57.7 + - - +
33E SER* 3.2 18.5 + - - +
34E GLU 3.5 9.7 - - - +
40E PHE* 3.2 1.4 - - - -
41E SER* 2.5 75.9 + - - -
42E LEU 3.9 0.9 - - - +
43E SER* 3.0 26.0 - - - +
52E HIS* 5.1 0.9 - - - -
5I PTR 2.5 44.8 + - - -
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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