Contacts of the strand formed by residues 45 - 49 (chain O) in PDB entry 2BX5
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 45 (chain O).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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36O TYR* 3.3 6.3 - - - -
37O GLN* 3.1 31.4 + - + +
43O ALA 3.9 2.6 + - - +
44O PRO* 1.3 75.8 - - - +
46O LEU* 1.3 58.2 + - - +
47O LEU* 2.8 21.3 + - + +
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Residues in contact with LEU 46 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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34O ASN* 3.3 29.2 - - + +
35O TRP 3.0 18.2 - - - +
36O TYR* 3.1 42.5 - - + +
45O LYS* 1.3 72.1 - - - +
47O LEU* 1.3 56.7 + - - +
48O ILE 3.4 10.3 - - - +
49O TYR* 4.2 11.7 - - + -
55O GLN* 2.6 47.7 - - + +
58O VAL* 4.3 1.2 - - - +
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Residues in contact with LEU 47 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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35O TRP* 2.8 17.5 + - + +
37O GLN* 3.4 44.0 - - + +
45O LYS* 2.8 14.1 + - + +
46O LEU* 1.3 75.9 - - - +
48O ILE* 1.3 68.0 + - + +
55O GLN* 3.0 27.2 + - - +
58O VAL* 3.6 28.1 - - + +
62O PHE* 3.4 46.7 - - + -
73O LEU* 4.7 5.2 - - + -
86O TYR* 4.1 7.2 - - + -
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Residues in contact with ILE 48 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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35O TRP* 2.7 50.3 + - + +
46O LEU* 3.4 2.4 - - - +
47O LEU* 1.3 82.5 - - + +
49O TYR* 1.3 68.6 + - - +
51O ALA 3.2 35.7 - - - +
52O SER 3.6 3.4 - - - +
53O SER 3.4 18.4 - - - +
54O LEU* 3.9 16.2 - - + -
62O PHE* 3.8 30.7 - - + -
63O SER 3.8 0.7 - - - +
64O GLY* 3.6 21.1 - - - +
73O LEU* 4.1 12.6 - - + -
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Residues in contact with TYR 49 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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33O LEU 3.3 10.3 - - - -
34O ASN* 3.2 23.1 - - - +
46O LEU* 4.2 8.7 - - + -
47O LEU 4.3 0.4 - - - -
48O ILE* 1.3 77.9 - - - +
50O ALA* 1.3 72.2 + - + +
51O ALA 2.8 6.0 + - - +
52O SER 3.7 1.6 + - - -
53O SER* 3.3 22.7 + - - +
54O LEU 3.1 36.0 + - - -
55O GLN* 2.9 35.5 + - - -
56O SER 4.6 0.7 + - - -
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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