Contacts of the helix formed by residues 57 - 67 (chain D) in PDB entry 3H1J
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 THR 57 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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52D ILE* 4.6 1.1 - - - -
53D GLY 5.0 0.7 - - - +
56D HIS* 1.3 75.5 - - - +
58D GLU* 1.3 65.4 + - - +
59D ALA* 3.7 8.1 + - - +
60D GLU* 2.9 34.1 + - - +
61D ALA* 3.0 19.6 + - - +
52J TRP* 3.8 15.7 - - + -
59J TYR* 3.4 45.9 + - + +
60J GLU* 3.7 21.1 - - - +
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Residues in contact with GLU 58 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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52D ILE* 3.9 34.4 - - + +
56D HIS 4.0 0.6 + - - -
57D THR* 1.3 72.7 - - - +
59D ALA* 1.3 65.0 + - - +
61D ALA* 3.2 4.0 + - - +
62D LYS* 2.9 25.0 + - + +
87D ILE* 4.3 17.1 - - + +
60J GLU* 5.4 1.4 + - - -
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Residues in contact with ALA 59 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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57D THR* 3.7 8.2 + - - +
58D GLU* 1.3 80.2 - - - +
60D GLU* 1.3 66.0 + - + +
62D LYS* 3.0 11.3 + - - +
63D ALA* 2.8 23.6 + - - +
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Residues in contact with GLU 60 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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27D ARG* 2.9 40.9 + - - -
56D HIS* 3.2 11.4 - - + -
57D THR* 2.9 35.9 + - - +
59D ALA* 1.3 78.5 - - + +
61D ALA* 1.3 56.8 + - - +
63D ALA* 3.3 8.1 - - - +
64D LEU* 2.9 34.4 + - + +
59J TYR* 3.1 22.9 - - - +
63J GLU* 4.2 4.7 - - - +
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Residues in contact with ALA 61 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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48D PHE* 3.6 20.0 - - - +
51D LEU* 4.7 4.5 - - + -
52D ILE* 3.4 38.8 - - + +
56D HIS* 4.3 2.6 - - + +
57D THR 3.0 7.7 + - - +
58D GLU 3.5 3.6 - - - +
60D GLU* 1.3 74.7 - - - +
62D LYS* 1.3 66.8 + - - +
64D LEU* 3.3 13.1 + - - +
65D ALA* 2.9 23.4 + - - +
87D ILE* 4.2 2.9 - - + -
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Residues in contact with LYS 62 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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58D GLU* 2.9 15.9 + - + +
59D ALA* 3.3 13.0 - - - +
61D ALA* 1.3 75.2 - - - +
63D ALA* 1.3 65.2 + - - +
65D ALA* 3.0 5.1 + - + +
66D GLU* 3.0 55.1 + - + +
86D LYS* 6.4 0.9 - - - -
87D ILE* 3.5 21.2 - - + +
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Residues in contact with ALA 63 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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59D ALA 2.8 11.0 + - - +
60D GLU* 3.3 13.7 - - - +
62D LYS* 1.3 77.0 - - - +
64D LEU* 1.3 65.8 + - - +
65D ALA 3.0 1.2 + - - -
66D GLU* 3.0 23.1 + - - +
67D GLU* 3.2 17.3 + - - +
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Residues in contact with LEU 64 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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30D PHE* 3.4 38.4 - - + -
34D LYS* 3.5 32.5 + - + +
48D PHE* 3.4 19.4 - - + -
51D LEU* 3.9 10.1 - - + -
56D HIS* 3.5 26.7 - - + +
60D GLU* 2.9 19.6 + - + +
61D ALA* 3.3 6.9 + - - +
63D ALA* 1.3 74.0 - - + +
65D ALA* 1.3 63.4 + - - +
67D GLU* 3.4 27.3 + - - +
68D VAL* 4.1 3.3 - - - +
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Residues in contact with ALA 65 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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48D PHE* 3.5 21.0 - - + -
61D ALA 2.9 13.9 + - - +
62D LYS* 3.1 12.6 - - - +
64D LEU* 1.3 77.3 - - - +
66D GLU* 1.3 63.0 + - - +
68D VAL* 3.1 18.2 + - - +
85D GLY* 3.3 16.3 - - - +
86D LYS 3.6 32.5 - - - +
87D ILE 4.0 2.5 - - - +
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Residues in contact with GLU 66 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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62D LYS* 3.0 48.7 + - + +
63D ALA* 3.0 14.0 + - - +
65D ALA* 1.3 69.4 - - - +
67D GLU* 1.3 57.0 + - - +
68D VAL 2.8 19.6 + - - +
69D GLU* 5.6 0.3 - - - +
84D PRO* 4.3 16.1 - - + +
85D GLY 3.4 24.9 + - - +
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Residues in contact with GLU 67 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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34D LYS* 3.2 28.6 + - - +
63D ALA* 3.2 12.2 + - - +
64D LEU* 3.4 28.1 + - - +
65D ALA 3.1 1.2 + - - -
66D GLU* 1.3 75.6 - - - +
68D VAL* 1.3 60.8 + - + +
69D GLU* 4.2 0.9 + - - +
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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