Contacts of the helix formed by residues 702 - 706 (chain A) in PDB entry 6PUO
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 GLN 702 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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690A PHE* 5.8 1.5 - - - -
694A TYR* 4.1 20.0 + - - -
698A GLU* 3.2 25.2 + - - +
699A GLU* 3.8 15.3 - - - +
700A ARG 3.2 0.6 - - - -
701A ALA* 1.3 77.3 - - - +
703A LYS* 1.3 63.5 + - + +
704A LEU 3.2 0.2 - - - -
705A LEU* 3.2 26.4 + - - +
706A THR* 3.8 8.4 - - - +
734A GLY 4.1 7.6 + - - +
737A ALA* 5.1 3.8 - - - +
738A PHE* 3.3 47.9 - - + +
741A LYS* 4.0 22.9 - - + +
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Residues in contact with LYS 703 (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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699A GLU 3.9 10.8 - - - +
700A ARG* 3.1 28.5 + - - +
702A GLN* 1.3 75.7 - - + +
704A LEU* 1.3 64.4 + - - +
705A LEU 3.2 0.2 - - - -
706A THR* 3.5 11.3 + - + +
707A ARG* 3.3 26.9 + - - +
1113A LEU* 5.1 12.6 - - + +
1117A GLU* 2.6 30.5 + - - +
1121A LEU* 4.5 16.4 - - + +
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Residues in contact with LEU 704 (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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649A ILE* 3.8 30.1 - - + -
690A PHE* 5.2 2.7 - - + -
693A CYS* 4.0 20.0 - - + -
700A ARG 4.3 7.2 - - - +
701A ALA* 3.6 11.4 + - - +
702A GLN 3.2 1.2 - - - -
703A LYS* 1.3 79.4 - - - +
705A LEU* 1.3 64.6 + - + +
706A THR 3.4 0.7 + - - -
707A ARG* 4.1 18.8 + - - +
717A CYS* 3.6 17.0 - - - +
1121A LEU* 3.8 39.3 - - + +
1124A TRP* 4.7 8.5 - - + -
1125A GLU* 4.1 24.0 - - + +
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Residues in contact with LEU 705 (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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649A ILE* 6.2 1.1 - - + -
690A PHE* 3.7 29.4 - - + -
701A ALA 4.1 4.9 - - - +
702A GLN* 3.2 31.3 + - - +
704A LEU* 1.3 78.9 - - + +
706A THR* 1.3 61.1 + - - +
716A THR* 2.9 15.4 + - - -
717A CYS* 4.4 11.7 - - + +
718A LEU* 3.6 28.8 + - + +
729A PHE* 4.6 12.1 - - + -
734A GLY 5.3 0.2 - - - +
735A ILE* 3.7 31.2 - - + -
738A PHE* 4.4 25.5 - - + -
1109A LEU 5.2 0.2 - - - +
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Residues in contact with THR 706 (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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702A GLN 3.8 12.1 - - - +
703A LYS* 3.7 16.6 - - + +
704A LEU 3.2 0.2 - - - -
705A LEU* 1.3 81.4 - - - +
707A ARG* 1.3 68.3 + - - +
716A THR* 3.4 5.7 + - - -
738A PHE* 5.0 12.8 - - + -
1108A GLN 3.8 10.1 + - - +
1109A LEU* 3.0 29.4 + - - -
1110A LYS* 3.5 4.3 + - - -
1111A ASN* 2.9 32.8 + - - +
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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