Contacts of the helix formed by residues 54 - 60 (chain E) in PDB entry 6G2T
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 GLY 54 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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30E PHE* 3.5 27.6 - - - -
31E PRO* 3.7 12.3 - - - -
33E ILE* 3.4 20.5 + - - +
53E VAL* 1.3 74.8 - - - +
55E ASP* 1.3 61.8 + - - -
56E GLU 3.1 6.6 + - - -
57E ALA* 3.3 18.5 + - - +
84E ILE* 5.6 0.2 - - - +
87E HIS* 4.3 1.8 - - - -
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Residues in contact with ASP 55 (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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30E PHE* 4.3 13.8 - - + +
31E PRO* 4.3 14.1 - - + -
54E GLY* 1.3 70.4 - - - -
56E GLU* 1.3 72.4 + - - +
57E ALA 3.2 0.4 - - - -
58E GLN* 3.1 30.7 + - + +
59E SER* 3.6 5.9 + - - -
87E HIS* 4.7 4.5 + - - -
92E GLU* 4.6 11.5 - - - +
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Residues in contact with GLU 56 (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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49E LYS* 4.4 10.0 + - - +
52E TYR* 3.3 42.6 - - + -
53E VAL 3.9 19.2 + - - +
54E GLY 3.1 0.2 - - - -
55E ASP* 1.3 85.0 + - - +
57E ALA* 1.3 61.4 + - - +
58E GLN 3.4 0.5 + - - -
59E SER* 3.4 19.0 + - - -
60E LYS* 3.7 14.5 + - + +
87E HIS* 5.0 7.0 + - - +
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Residues in contact with ALA 57 (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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33E ILE* 3.5 20.0 - - + -
35E GLY 4.7 1.1 - - - +
52E TYR* 4.1 28.3 - - + +
53E VAL 4.9 0.2 + - - -
54E GLY 3.3 13.4 + - - +
55E ASP 3.2 0.2 - - - -
56E GLU* 1.3 81.4 - - - +
58E GLN* 1.3 59.9 + - - +
60E LYS 3.3 3.5 + - - -
61E ARG* 3.0 24.4 + - - +
64E LEU* 4.5 8.0 - - + +
66E LEU* 3.8 16.7 - - + +
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Residues in contact with GLN 58 (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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31E PRO* 3.6 21.5 - - + +
33E ILE* 3.1 23.0 - - - +
54E GLY 4.4 0.7 - - - +
55E ASP* 3.1 27.8 + - + +
57E ALA* 1.3 77.7 - - - +
59E SER* 1.3 57.9 + - - +
61E ARG* 2.7 63.9 + - - +
66E LEU* 5.6 0.2 - - - -
206E GLU* 3.0 30.6 + - - +
209E ARG* 4.4 9.1 + - - +
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Residues in contact with SER 59 (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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55E ASP 3.6 4.3 + - - -
56E GLU* 3.4 11.8 + - - -
57E ALA 3.3 0.8 - - - -
58E GLN* 1.3 80.1 - - - +
60E LYS* 1.3 65.7 + - - +
61E ARG* 3.3 2.5 + - - +
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Residues in contact with LYS 60 (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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46E MET* 5.8 6.9 - - - -
49E LYS* 5.8 1.4 - - - +
52E TYR* 3.3 40.7 + - + +
56E GLU* 3.7 12.8 + - + +
57E ALA 3.3 6.5 + - - +
59E SER* 1.3 83.2 - - - +
61E ARG* 1.3 62.3 + - - +
62E GLY 3.4 2.5 - - - -
63E ILE* 3.3 13.3 + - + +
64E LEU* 3.2 33.1 + - + +
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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