Contacts of the helix formed by residues 509 - 516 (chain B) in PDB entry 2O5C
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 509 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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604A ASP* 4.7 7.1 - - - +
608A ARG* 3.4 44.3 + - - +
507B VAL* 3.3 10.2 - - + +
508B GLN* 1.3 78.6 - - - +
510B LYS* 1.3 67.4 + - - +
511B ASP* 3.3 19.8 + - - +
512B LEU* 3.8 19.4 + - + +
513B LYS* 3.2 27.0 + - - +
569B ASP* 3.5 15.6 + - - +
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Residues in contact with LYS 510 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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508B GLN 3.8 5.4 + - - +
509B ASP* 1.3 76.8 + - - +
511B ASP* 1.3 68.6 + - - +
513B LYS* 3.5 11.4 + - + +
514B LYS* 3.5 33.7 + - - +
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Residues in contact with ASP 511 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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607A LYS 4.2 15.1 - - - +
608A ARG* 4.5 6.8 - - - +
509B ASP* 3.3 16.3 + - - +
510B LYS* 1.3 80.8 - - - +
512B LEU* 1.3 58.8 + - - +
514B LYS* 4.1 19.1 + - - +
515B ILE* 3.4 29.7 + - - +
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Residues in contact with LEU 512 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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507B VAL* 3.6 19.7 - - + -
509B ASP* 3.7 21.1 + - + +
510B LYS 3.3 0.2 - - - -
511B ASP* 1.3 75.0 - - - +
513B LYS* 1.3 65.5 + - - +
514B LYS 3.2 2.0 - - - -
515B ILE* 3.4 21.3 + - + +
516B LEU* 3.2 48.3 + - + +
569B ASP* 3.5 33.4 - - + +
572B ALA* 4.3 4.5 - - + +
573B HIS* 4.0 29.6 - - + +
576B SER* 4.6 1.3 - - - +
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Residues in contact with LYS 513 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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504B ALA* 3.3 40.4 - - + +
505B ARG* 3.8 22.8 + - - +
507B VAL* 4.1 14.3 + - + +
509B ASP 3.2 17.3 + - - +
510B LYS* 3.7 13.2 - - + +
511B ASP 3.5 0.4 - - - -
512B LEU* 1.3 77.7 - - - +
514B LYS* 1.3 61.9 + - + +
516B LEU* 4.1 13.6 + - - +
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Residues in contact with LYS 514 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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510B LYS* 3.5 23.3 + - - +
511B ASP* 4.1 21.4 + - - +
512B LEU 3.2 0.4 - - - -
513B LYS* 1.3 78.5 - - + +
515B ILE* 1.3 66.1 + - + +
516B LEU 3.1 12.1 + - - +
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Residues in contact with ILE 515 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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511B ASP 3.4 22.1 + - - +
512B LEU* 3.6 25.8 - - + +
514B LYS* 1.3 77.9 - - + +
516B LEU* 1.3 62.3 + - - +
517B ARG* 3.3 10.0 + - - +
520B ASP* 4.9 0.3 - - - +
573B HIS* 5.6 4.5 - - - +
576B SER* 4.2 17.4 + - - +
580B GLN* 6.0 2.2 - - - +
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Residues in contact with LEU 516 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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503B ILE* 4.8 5.2 - - + -
504B ALA* 4.2 24.0 - - + +
507B VAL* 4.1 13.7 - - + -
512B LEU* 3.2 41.9 + - + +
513B LYS* 4.1 8.8 - - - +
514B LYS 3.1 9.1 - - - +
515B ILE* 1.3 74.2 - - - +
517B ARG* 1.3 69.0 + - - +
520B ASP* 4.2 20.6 - - + +
572B ALA* 3.4 40.6 - - + +
575B GLU* 5.1 1.6 - - + -
576B SER* 3.6 14.4 - - - +
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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