Contacts of the helix formed by residues 6 - 13 (chain E) in PDB entry 6RI7
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 VAL 6 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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481D ARG* 3.5 24.9 - - + +
482D ALA* 4.2 10.5 - - + +
488D ASN* 3.4 28.3 - - - +
5E THR* 1.3 80.8 - - - +
7E GLN* 1.3 65.3 - - - +
9E ALA* 3.0 18.5 + - + +
10E VAL* 3.0 14.5 + - + +
16E ARG* 4.1 18.2 - - - +
19E LEU* 4.6 7.0 - - + -
51E LEU* 4.1 25.4 - - + -
55E GLU* 3.4 10.3 - - - -
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Residues in contact with GLN 7 (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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488D ASN* 5.3 1.3 + - - +
614D LEU* 3.3 42.4 - - + +
615D LYS* 5.2 9.6 - - + +
905D ARG* 5.8 0.9 + - - -
5E THR* 3.6 10.0 + - - +
6E VAL* 1.3 78.9 - - - +
8E ASP* 1.3 66.3 + - - +
10E VAL* 3.0 19.0 + - - +
11E GLU* 2.9 56.0 + - + +
16E ARG* 5.2 6.5 + - - +
55E GLU* 3.7 0.2 + - - -
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Residues in contact with ASP 8 (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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615D LYS* 3.5 27.2 + - - +
7E GLN* 1.3 79.0 - - - +
9E ALA* 1.3 61.3 + - - +
11E GLU* 3.1 18.4 + - + +
12E LYS* 2.9 31.0 + - - +
55E GLU* 3.0 29.5 + - + +
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Residues in contact with ALA 9 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
6E VAL* 3.0 18.8 + - + +
8E ASP* 1.3 69.7 - - - +
10E VAL* 1.3 60.6 + - - +
12E LYS* 2.9 6.9 + - - +
13E ILE* 2.9 22.5 + - - +
19E LEU* 3.8 31.5 - - + +
51E LEU* 4.9 7.9 - - + +
54E ILE* 4.4 10.2 - - + +
55E GLU* 2.4 36.2 + - + +
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Residues in contact with VAL 10 (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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907D HIS* 5.2 12.8 - - + +
6E VAL* 3.0 13.3 + - + +
7E GLN* 3.5 16.4 - - - +
9E ALA* 1.3 75.0 - - - +
11E GLU* 1.3 65.6 + - - +
13E ILE 2.6 32.6 + - - +
14E GLY* 3.7 10.5 + - - +
16E ARG* 3.2 56.1 - - + +
19E LEU* 4.4 8.7 - - + -
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Residues in contact with GLU 11 (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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7E GLN* 2.9 45.0 + - + +
8E ASP* 3.2 25.8 - - + +
10E VAL* 1.3 77.8 - - - +
12E LYS* 1.3 61.0 + - + +
13E ILE 5.1 0.3 - - - -
14E GLY 5.4 0.2 + - - -
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Residues in contact with LYS 12 (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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8E ASP* 2.9 17.0 + - - +
9E ALA* 2.9 8.0 + - - +
11E GLU* 1.3 82.4 - - + +
13E ILE* 1.3 67.8 + - + +
14E GLY 4.3 0.2 - - - -
54E ILE* 3.4 23.6 - - + +
55E GLU* 3.2 32.3 - - - +
56E GLU 4.7 0.6 - - - -
57E GLY* 3.5 21.3 - - - +
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Residues in contact with ILE 13 (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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9E ALA 2.9 7.9 + - - +
10E VAL* 2.6 26.9 + - - +
12E LYS* 1.3 86.9 - - + +
14E GLY* 1.3 61.6 + - - +
15E ASN* 3.3 10.3 + - + +
16E ARG* 3.7 5.0 + - - -
18E ASP* 4.2 11.4 - - + +
19E LEU* 4.2 39.2 - - + +
22E VAL* 4.8 13.2 - - + -
54E ILE* 4.7 11.4 - - + -
59E ILE 4.9 0.4 - - - +
60E ASN* 4.4 26.9 - - + -
61E ASN 5.4 0.4 - - - +
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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