Contacts of the helix formed by residues 53 - 59 (chain C) in PDB entry 5D0A
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 ASP 53 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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362A GLU* 3.0 27.3 + - - +
365A LYS* 2.8 30.5 + - - +
51C GLU* 3.0 18.7 + - - +
52C PRO* 1.3 75.1 - - - +
54C ILE* 1.3 61.3 + - - +
55C GLU* 3.0 29.8 + - - +
56C LYS* 3.2 35.4 + - + +
57C ARG* 3.2 15.3 + - - +
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Residues in contact with ILE 54 (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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366A LEU* 3.6 30.5 - - + +
369A GLU* 3.5 25.3 + - - +
34C LYS* 4.1 25.8 - - + -
37C LEU* 4.0 33.7 - - + +
38C ILE* 3.8 25.6 - - + +
41C GLU* 5.3 3.1 - - + +
46C LEU* 6.2 1.6 - - + -
51C GLU 5.7 0.7 - - - +
52C PRO 3.2 4.7 + - - +
53C ASP* 1.3 72.1 + - - +
55C GLU* 1.3 63.5 + - - +
57C ARG* 3.2 11.7 + - + +
58C VAL* 3.2 22.5 + - + +
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Residues in contact with GLU 55 (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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356A LEU* 3.4 29.4 - - + +
357A GLU* 3.8 16.5 - - - +
365A LYS* 4.9 10.3 - - + +
369A GLU* 2.9 23.1 + - - +
34C LYS* 3.6 23.4 + - - -
53C ASP* 3.0 12.6 + - - +
54C ILE* 1.3 77.7 - - - +
56C LYS* 1.3 60.5 + - + +
58C VAL* 3.4 4.4 + - - +
59C THR* 2.8 35.7 + - - -
62C LEU* 4.2 16.4 - - + +
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Residues in contact with LYS 56 (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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362A GLU* 5.6 1.4 + - - -
51C GLU* 4.0 11.3 + - - +
53C ASP* 3.2 33.6 + - + +
55C GLU* 1.3 73.4 - - + +
57C ARG* 1.3 66.4 + - - +
58C VAL 3.2 1.0 + - - -
59C THR 3.5 7.8 + - - +
62C LEU* 4.5 14.1 - - + -
63C LEU* 3.5 42.5 - - + +
137C GLU* 4.1 19.2 + - + +
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Residues in contact with ARG 57 (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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30C PHE* 4.6 1.7 - - - -
33C LEU* 4.2 9.7 - - + +
37C LEU* 3.5 40.5 - - + +
50C GLU* 3.6 16.7 - - - +
51C GLU* 3.3 32.5 - - + +
53C ASP 3.3 15.7 - - - +
54C ILE* 3.2 13.4 + - - +
56C LYS* 1.3 77.4 - - - +
58C VAL* 1.3 59.7 + - - +
136C GLY 5.3 0.8 + - - -
137C GLU 2.9 24.7 + - - +
138C LEU* 3.3 43.7 + - - +
139C SER* 3.5 16.7 + - - +
503C B12 2.9 41.4 + - - +
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Residues in contact with VAL 58 (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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29C THR* 3.1 9.6 - - - -
30C PHE* 2.8 56.7 + - - +
33C LEU* 4.0 14.1 - - + -
34C LYS* 3.8 39.7 - - + +
37C LEU* 4.3 6.5 - - + -
54C ILE* 3.2 18.8 + - + +
55C GLU* 3.6 6.1 - - - +
56C LYS 3.1 0.2 - - - -
57C ARG* 1.3 81.3 - - - +
59C THR* 1.3 70.3 + - - +
60C PRO* 3.4 5.6 - - - +
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Residues in contact with THR 59 (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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29C THR* 3.8 23.1 - - + +
55C GLU* 2.8 23.8 + - - -
56C LYS 3.5 5.9 + - - +
57C ARG 3.6 0.4 - - - -
58C VAL* 1.3 89.1 + - - +
60C PRO* 1.3 66.2 - - - +
61C LYS* 3.1 11.4 - - + +
62C LEU* 2.9 42.5 + - + +
63C LEU* 3.5 6.6 + - - +
138C LEU* 5.2 0.2 - - - -
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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