Contacts of the helix formed by residues 36 - 42 (chain E) in PDB entry 6VVT
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 PRO 36 (chain E).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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706D ILE* 3.1 34.5 - - + -
26E TYR* 3.8 27.1 - - + +
29E PRO* 5.0 3.1 - - + -
33E THR 3.5 3.3 - - - +
34E ASN* 4.7 3.4 - - - +
35E PRO* 1.3 94.0 - - + +
37E ILE* 1.3 65.2 + - - +
38E ASP* 4.2 9.6 - - + +
39E GLU* 3.6 34.4 - - + +
40E LEU* 3.3 19.8 + - - +
97E HIS* 4.9 0.4 - - + +
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Residues in contact with ILE 37 (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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556D ARG 5.2 1.1 - - - +
557D ILE* 4.3 26.0 - - + +
563D ASN* 3.2 44.4 - - - +
705D MET* 4.9 11.7 - - + -
706D ILE* 4.5 11.4 - - + -
35E PRO 3.6 1.6 + - - +
36E PRO* 1.3 71.1 - - + +
38E ASP* 1.3 83.3 + - - +
40E LEU* 3.1 8.5 + - + +
41E LEU* 2.7 51.9 + - + +
50E LEU* 5.0 8.1 - - + -
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Residues in contact with ASP 38 (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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704D PRO* 2.9 39.5 - - + +
705D MET* 4.0 3.6 + - - +
706D ILE* 4.4 3.1 + - - +
986D LYS* 4.3 20.2 + - - +
36E PRO* 3.2 8.5 - - + +
37E ILE* 1.3 99.2 + - - +
39E GLU* 1.3 64.5 + - + +
40E LEU 3.3 0.5 + - - -
41E LEU* 3.3 16.8 + - - +
42E SER* 3.5 12.5 + - - -
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Residues in contact with GLU 39 (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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26E TYR* 3.2 28.6 + - + -
36E PRO* 3.5 25.3 + - + +
37E ILE 3.4 0.4 - - - -
38E ASP* 1.3 77.3 - - + +
40E LEU* 1.3 58.8 + - - +
42E SER* 2.9 21.8 + - - -
43E ARG* 3.6 19.2 + - - +
97E HIS* 2.3 49.1 + - + -
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Residues in contact with LEU 40 (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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557D ILE* 6.0 2.0 - - + -
35E PRO* 3.5 35.2 - - + +
36E PRO 3.3 14.5 + - - +
37E ILE* 3.1 11.5 + - + +
39E GLU* 1.3 76.3 - - - +
41E LEU* 1.3 63.1 + - - +
42E SER 3.2 1.8 - - - -
43E ARG* 3.1 20.5 + - - +
44E ALA 3.9 2.8 + - - -
50E LEU* 3.4 30.4 - - + +
93E LEU* 3.5 41.3 - - + +
96E ILE* 4.1 13.4 - - + +
97E HIS* 3.7 18.2 - - - +
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Residues in contact with LEU 41 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
557D ILE* 5.4 0.2 - - + -
986D LYS* 5.3 14.4 - - + +
989D ASP* 6.1 0.7 - - - +
37E ILE* 2.7 42.9 + - + +
38E ASP* 3.3 11.4 + - - +
40E LEU* 1.3 73.6 - - - +
42E SER* 1.3 56.2 + - - +
43E ARG 3.1 0.2 - - - -
44E ALA* 2.7 30.0 + - - +
45E SER 4.5 3.6 - - - +
46E SER* 4.4 4.3 - - - -
47E LYS* 3.7 36.1 - - + +
50E LEU* 3.6 22.7 - - + -
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Residues in contact with SER 42 (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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38E ASP 3.5 9.4 + - - -
39E GLU* 2.9 13.3 + - - -
41E LEU* 1.3 77.2 - - - +
43E ARG* 1.3 91.9 + - - +
44E ALA 3.4 2.1 - - - +
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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