Contacts of the strand formed by residues 54 - 60 (chain A) in PDB entry 2PLE
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 LYS 54 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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50A ARG* 3.0 35.1 + - - +
51A ALA 3.4 0.2 + - - -
52A GLU* 5.5 2.9 - - + -
53A GLY* 1.3 79.0 - - - +
55A ILE* 1.3 71.1 + - - +
56A LYS* 3.6 8.6 + - - +
2B ASN* 4.4 20.5 - - - +
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Residues in contact with ILE 55 (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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22A GLU* 3.2 44.4 - - + +
25A LEU* 3.1 34.1 - - + +
26A MET* 3.3 38.1 - - + +
50A ARG* 2.9 15.0 - - + +
53A GLY* 4.0 13.2 - - - +
54A LYS* 1.3 82.5 - - - +
56A LYS* 1.3 61.6 + - - +
57A HIS* 3.4 11.2 - - + +
2B ASN* 4.0 6.2 - - - +
3B ASP* 4.0 14.2 - - - +
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Residues in contact with LYS 56 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
49A PHE* 2.5 56.3 + - + +
50A ARG* 2.8 48.3 - - - +
54A LYS* 3.6 4.2 + - - +
55A ILE* 1.3 77.1 - - - +
57A HIS* 1.3 65.1 + - - +
90A TYR* 4.8 4.5 - - - -
93A MET* 4.2 7.4 - - - -
2B ASN* 5.1 7.8 + - - +
3B ASP* 3.8 10.0 - - - +
4B PTR 4.0 8.7 + - - +
5B ILE* 3.1 32.1 - - + +
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Residues in contact with HIS 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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22A GLU* 2.8 54.8 + - + +
25A LEU* 4.9 1.3 - - + +
37A ARG* 3.5 12.6 + - - -
47A ILE 2.8 17.7 - - - +
48A SER* 3.7 22.6 - - - +
49A PHE* 4.6 1.1 - - - -
55A ILE* 3.4 10.1 - - + +
56A LYS* 1.3 77.9 - - - +
58A CYS* 1.3 61.9 + - - +
3B ASP* 3.2 27.2 + - + +
4B PTR 3.3 33.5 + - + -
5B ILE* 2.7 31.5 + - - +
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Residues in contact with CYS 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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46A ALA* 2.6 37.6 - - - +
47A ILE* 2.6 56.2 + - + +
49A PHE* 4.3 1.6 - - + -
57A HIS* 1.3 72.8 - - - +
59A ARG* 1.3 56.1 + - - +
60A VAL* 4.0 10.8 - - - -
4B PTR 2.9 12.8 - - - -
5B ILE* 3.0 35.7 - - + +
7B PRO* 4.8 9.2 - - + -
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Residues in contact with ARG 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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39A ARG* 3.1 34.7 - - - +
45A TYR 3.5 3.8 - - - -
58A CYS* 1.3 80.4 - - - +
60A VAL* 1.3 65.6 + - - +
61A GLN* 3.7 19.6 + - - +
69A LEU 5.0 3.0 - - - +
4B PTR 2.9 56.7 - - + +
5B ILE 4.0 5.2 + - - +
6B ILE* 5.9 5.3 - - - +
7B PRO* 5.6 3.7 - - - +
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Residues in contact with VAL 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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44A SER* 3.9 1.2 - - - -
45A TYR* 2.9 46.3 + - + +
47A ILE* 3.8 33.2 - - + -
58A CYS* 4.0 5.1 - - - -
59A ARG* 1.3 73.6 - - - +
61A GLN* 1.3 79.7 + - - +
67A VAL* 4.2 4.0 - - + -
68A MET 4.3 1.6 - - - -
69A LEU* 3.7 34.5 - - + +
77A LEU* 6.6 0.4 - - + -
80A LEU* 4.0 16.2 - - + -
81A ILE* 5.9 1.1 - - + -
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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