Contacts of the helix formed by residues 76 - 82 (chain C) in PDB entry 5JA4
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 76 (chain C).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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74C GLY 3.2 0.6 + - - -
75C ASP* 1.3 73.6 - - - +
77C MET* 1.3 63.9 + - - +
78C GLU* 3.1 14.0 + - - -
79C ARG* 3.2 41.8 + - - +
80C ASP* 5.0 0.2 - - - +
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Residues in contact with MET 77 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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57A SER* 5.0 7.4 - - - -
39B ARG* 3.7 43.3 - - - +
72C LEU 3.8 5.4 - - - +
73C ILE* 3.9 33.2 - - + -
74C GLY 3.1 19.4 + - - +
75C ASP 3.3 0.4 + - - -
76C GLY* 1.3 78.4 - - - +
78C GLU* 1.3 72.6 + - + +
80C ASP* 2.9 29.8 + - - +
81C TYR* 3.4 25.8 - - + +
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Residues in contact with GLU 78 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
57A SER* 5.5 9.0 - - - +
74C GLY 4.5 1.4 - - - +
75C ASP* 4.9 1.2 - - - -
76C GLY* 3.1 18.9 + - - -
77C MET* 1.3 88.2 + - + +
79C ARG* 1.3 66.5 + - - +
81C TYR* 3.0 22.5 + - + +
82C ARG* 3.7 7.6 + - - +
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Residues in contact with ARG 79 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
63A ARG* 5.3 0.2 + - - -
35B ARG* 4.2 23.4 - - - +
75C ASP 5.5 0.8 + - - -
76C GLY* 3.2 34.8 + - - +
77C MET 3.2 1.4 - - - -
78C GLU* 1.3 77.2 - - - +
80C ASP* 1.3 72.2 + - - +
81C TYR 3.3 0.9 + - - -
82C ARG* 3.4 36.3 + - - +
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Residues in contact with ASP 80 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
60A LEU* 3.6 2.6 - - - +
63A ARG* 4.1 1.8 + - - -
32B PRO* 4.0 11.6 - - - +
35B ARG* 2.8 35.8 + - - +
36B ARG* 2.6 40.9 + - + +
39B ARG* 2.8 40.0 + - - +
77C MET* 2.9 17.1 + - - +
79C ARG* 1.3 89.4 + - - +
81C TYR* 1.3 61.5 + - + +
82C ARG 3.6 0.7 - - - -
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Residues in contact with TYR 81 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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57A SER* 4.0 23.8 - - - -
58A THR* 3.6 55.0 + - - +
60A LEU* 4.1 12.9 - - + +
61A LEU* 6.1 0.2 - - + -
36B ARG* 3.5 33.1 + - + +
39B ARG* 3.2 42.2 + - - +
77C MET* 3.4 39.6 - - + +
78C GLU* 3.0 12.2 + - - +
80C ASP* 1.3 77.2 - - + +
82C ARG* 1.3 65.3 + - - +
83C ALA* 3.6 1.0 + - - -
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Residues in contact with ARG 82 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
60A LEU* 4.2 0.9 - - - +
63A ARG* 2.9 31.9 + - - +
32B PRO* 6.3 1.2 - - - +
78C GLU 3.7 5.2 + - - +
79C ARG* 3.4 27.4 + - - +
80C ASP 3.6 0.6 - - - -
81C TYR* 1.3 78.7 - - - +
83C ALA* 1.3 62.0 + - - +
84C ILE* 3.9 31.5 - - + +
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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