Contacts of the strand formed by residues 1777 - 1781 (chain A) in PDB entry 6FF7
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 ILE1777 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1771A LEU* 4.9 19.7 + - + +
1775A GLN* 3.6 6.6 + - + +
1776A ILE* 1.3 74.1 - - - +
1778A TRP* 1.3 61.8 + - - +
1810A PHE 4.3 3.5 - - - +
1811A ASN* 4.5 3.8 - - - +
1812A PRO* 4.5 13.0 - - - +
1858A PRO* 4.9 0.4 - - - -
1860A GLN* 3.3 19.1 - - + +
1862A ILE* 6.0 2.9 - - + +
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Residues in contact with TRP1778 (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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1776A ILE 4.3 0.2 - - - -
1777A ILE* 1.3 74.0 - - - +
1779A PHE* 1.3 64.0 + - - +
1780A VAL* 4.3 0.6 + - + -
1809A ILE* 5.6 5.4 - - + -
1810A PHE 3.5 11.7 - - - +
1811A ASN* 5.1 2.9 - - + +
1858A PRO* 4.5 12.5 - - + +
1860A GLN 3.2 9.4 + - - +
1861A ILE* 3.7 7.0 - - + -
1862A ILE* 2.9 29.7 + - - +
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Residues in contact with PHE1779 (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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1778A TRP* 1.3 75.2 - - - +
1780A VAL* 1.3 62.0 + - - +
1808A PHE 3.6 0.7 - - - +
1809A ILE* 3.1 8.1 - - - +
1810A PHE* 2.9 46.6 + - + +
1862A ILE* 3.5 9.9 - - + +
1891A LEU* 6.4 2.2 - - + -
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Residues in contact with VAL1780 (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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1778A TRP* 4.2 0.6 - - + +
1779A PHE* 1.3 74.7 - - - +
1781A ASP* 1.3 60.7 + - - +
1782A ASP* 4.2 1.7 + - + -
1808A PHE 3.4 5.8 - - - +
1809A ILE* 4.7 3.4 - - + +
1861A ILE* 5.9 5.6 - - + -
1862A ILE 3.2 12.0 + - - +
1863A VAL* 3.8 11.2 - - + +
1864A THR* 3.4 24.9 + - - -
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Residues in contact with ASP1781 (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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1779A PHE 4.2 0.4 - - - -
1780A VAL* 1.3 72.6 - - - +
1782A ASP* 1.3 59.5 + - - +
1783A THR* 3.7 6.1 - - - +
1806A ALA 4.6 0.7 - - - +
1807A ILE* 3.8 4.0 - - - +
1808A PHE* 2.9 49.2 + - + +
1864A THR* 4.8 7.9 - - - -
1891A LEU 5.3 4.5 - - - +
1893A PHE* 4.2 16.6 - - + -
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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