Contacts of the helix formed by residues 697 - 705 (chain A) in PDB entry 1FO4
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 THR 697 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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696A ILE* 1.3 89.2 - - + +
698A ILE* 1.3 65.3 + - - +
699A GLU* 3.4 17.7 + - - +
700A ASP* 2.8 41.2 + - - +
701A ALA* 2.9 22.2 + - - +
866A ASN* 4.0 4.9 - - - +
903A THR* 3.9 2.4 - - - +
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Residues in contact with ILE 698 (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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697A THR* 1.3 73.2 - - - +
699A GLU* 1.3 70.7 + - - +
701A ALA* 3.1 3.2 + - - +
702A ILE* 2.9 27.5 + - + +
735A TYR* 4.4 13.7 - - + -
841A PRO* 4.1 6.7 - - + +
842A PHE 4.2 1.6 - - - -
843A LEU* 3.8 31.2 - - + +
864A TYR* 3.6 36.3 - - + +
866A ASN* 3.8 35.8 - - + +
901A CYS* 3.5 24.5 - - - -
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Residues in contact with GLU 699 (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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697A THR* 3.6 13.5 - - - +
698A ILE* 1.3 86.9 + - - +
700A ASP* 1.3 63.1 + - - +
702A ILE* 3.4 9.6 + - - +
703A LYS* 3.1 24.1 + - - +
735A TYR* 5.8 4.8 - - - -
843A LEU* 4.6 19.2 - - + +
845A ARG* 5.4 7.0 - - - +
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Residues in contact with ASP 700 (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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694A ALA 4.4 3.6 - - - +
695A ILE* 3.6 17.5 - - + -
696A ILE* 3.1 23.7 + - - +
697A THR* 2.8 39.8 + - - +
699A GLU* 1.3 79.1 - - - +
701A ALA* 1.3 62.9 + - - +
703A LYS* 3.3 10.6 + - - +
704A ASN* 2.8 33.8 + - - +
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Residues in contact with ALA 701 (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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695A ILE* 3.5 15.2 - - + +
697A THR 2.9 11.4 + - - +
698A ILE 3.1 7.2 + - - +
700A ASP* 1.3 76.9 - - - +
702A ILE* 1.3 51.9 + - - +
704A ASN 3.3 0.3 + - - -
705A ASN* 2.7 14.4 + - - -
706A SER* 2.7 49.1 + - - +
707A PHE* 4.1 2.1 - - + -
901A CYS* 3.6 24.9 - - + -
903A THR* 4.1 3.8 - - + -
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Residues in contact with ILE 702 (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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698A ILE* 2.9 32.2 + - + +
699A GLU* 3.7 8.1 - - - +
701A ALA* 1.3 75.3 - - - +
703A LYS* 1.3 66.9 + - - +
705A ASN* 2.8 15.6 + - - +
707A PHE* 3.9 16.6 - - + -
843A LEU* 4.9 2.5 - - + -
845A ARG* 3.8 35.7 - - - +
864A TYR* 4.0 35.4 - - + +
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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 3.1 10.6 + - - +
700A ASP* 3.6 14.9 + - - +
702A ILE* 1.3 82.0 - - - +
704A ASN* 1.3 77.7 + - - +
705A ASN* 3.6 1.2 + - - +
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Residues in contact with ASN 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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695A ILE* 3.6 32.8 - - + +
700A ASP* 2.8 33.5 + - - +
701A ALA 4.1 1.6 - - - +
703A LYS* 1.3 97.7 - - - +
705A ASN* 1.3 72.4 + - - +
706A SER* 3.2 1.3 + - - +
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Residues in contact with ASN 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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701A ALA 2.7 10.1 + - - -
702A ILE 2.8 10.6 + - - +
703A LYS 3.3 1.5 - - - +
704A ASN* 1.3 81.7 - - - +
706A SER* 1.3 57.4 + - - +
707A PHE* 3.3 32.3 + - - -
899A ARG* 4.6 5.4 + - - -
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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