Contacts of the helix formed by residues 55 - 61 (chain A) in PDB entry 3CJB
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 55 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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31A PHE* 3.9 11.9 - - - -
32A PRO* 3.5 30.7 - - - +
34A ILE* 3.1 16.2 + - - +
54A VAL* 1.3 71.5 - - - +
56A ASP* 1.3 65.8 + - - -
58A ALA* 3.3 12.5 + - - +
59A GLN* 3.4 15.6 + - - +
88A HIS* 5.4 0.4 - - - -
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Residues in contact with ASP 56 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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31A PHE* 4.0 10.2 - - - +
32A PRO* 3.9 21.5 - - - +
54A VAL 3.6 1.4 + - - -
55A GLY* 1.3 69.6 - - - -
57A GLU* 1.3 55.6 + - - +
59A GLN* 3.1 14.8 + - - +
60A SER* 2.8 38.9 + - - -
93A GLU* 5.3 3.3 - - - +
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Residues in contact with GLU 57 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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50A LYS* 6.0 0.2 - - - +
53A TYR* 3.9 34.9 - - + +
54A VAL 3.8 14.1 + - - +
56A ASP* 1.3 78.4 - - - +
58A ALA* 1.3 59.2 + - - +
60A SER* 2.9 17.8 + - - -
61A LYS* 3.2 46.4 + - - +
88A HIS* 5.7 4.9 - - + -
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Residues in contact with ALA 58 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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34A ILE* 4.6 7.6 - - + -
36A GLY* 4.1 4.7 - - - +
53A TYR* 4.0 23.1 - - + +
54A VAL* 4.3 0.4 + - - -
55A GLY 3.3 14.6 + - - +
56A ASP 3.1 0.8 - - - -
57A GLU* 1.3 77.3 - - - +
59A GLN* 1.3 65.4 + - - +
61A LYS 3.0 6.6 - - - +
62A ARG* 3.0 21.7 + - - -
65A LEU* 4.0 10.3 - - - -
67A LEU* 3.5 25.1 - - + +
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Residues in contact with GLN 59 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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32A PRO* 3.7 24.3 - - - +
34A ILE* 3.6 31.9 - - + +
55A GLY 3.4 4.2 + - - +
56A ASP* 3.1 16.8 + - - +
58A ALA* 1.3 79.6 - - + +
60A SER* 1.3 63.9 + - - +
62A ARG* 3.0 53.5 + - - +
67A LEU* 4.4 3.6 - - + -
207A GLU* 3.6 25.1 + - - +
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Residues in contact with SER 60 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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56A ASP* 2.8 21.5 + - - -
57A GLU* 2.9 21.1 + - - -
59A GLN* 1.3 74.8 - - - +
61A LYS* 1.3 62.7 + - - +
62A ARG* 3.6 2.8 + - - +
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Residues in contact with LYS 61 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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53A TYR* 3.8 33.4 + - + +
57A GLU* 3.2 39.3 + - - +
58A ALA 3.0 3.6 - - - -
60A SER* 1.3 82.8 - - - +
62A ARG* 1.3 60.6 + - - +
63A GLY 3.3 2.9 - - - +
64A ILE* 3.7 23.7 + - + -
65A LEU* 3.2 32.9 + - + +
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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