Contacts of the helix formed by residues 1861 - 1869 (chain B) in PDB entry 3RYT
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 LYS1861 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1857B ILE 3.9 2.6 + - - +
1858B ALA 4.7 9.0 - - - +
1859B LYS 3.8 2.4 - - - +
1860B TYR* 1.3 76.3 - - - +
1862B ASP* 1.3 79.1 + - - +
1864B ILE* 3.0 23.7 - - - +
1865B LEU* 3.4 22.0 + - + +
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Residues in contact with ASP1862 (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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1859B LYS 4.7 5.4 - - - +
1860B TYR* 4.7 1.3 - - - -
1861B LYS* 1.3 100.4 + - + +
1863B GLU* 1.3 77.7 + - - +
1864B ILE 3.1 2.0 - - - -
1865B LEU* 4.3 2.4 - - - +
1866B VAL* 2.9 37.7 + - + +
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Residues in contact with GLU1863 (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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1372B THR* 3.8 13.9 - - + +
1376B GLN* 3.1 32.1 - - - +
1860B TYR* 4.1 14.1 - - + -
1862B ASP* 1.3 89.6 - - - +
1864B ILE* 1.3 61.4 + - - +
1866B VAL* 4.1 6.8 - - - +
1867B ALA* 3.9 11.8 + - - +
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Residues in contact with ILE1864 (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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1368B THR* 5.5 0.4 - - - +
1369B PHE* 5.0 11.4 - - + +
1372B THR* 4.8 13.2 - - + -
1373B LEU* 5.8 4.0 - - + -
1857B ILE* 3.6 35.9 - - + +
1860B TYR* 3.0 36.8 - - + +
1861B LYS* 3.0 17.0 - - - +
1863B GLU* 1.3 76.0 - - - +
1865B LEU* 1.3 77.2 - - + +
1866B VAL 3.2 1.6 - - - -
1867B ALA* 3.1 5.8 + - - +
1868B LEU* 2.8 45.9 + - + +
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Residues in contact with LEU1865 (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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1861B LYS* 3.5 20.6 - - + +
1862B ASP* 3.4 3.9 + - - +
1864B ILE* 1.3 85.9 - - + +
1866B VAL* 1.3 65.8 + - - +
1868B LEU* 4.1 9.2 - - + -
1869B GLU* 3.0 28.8 + - + +
1880B ARG* 3.8 47.8 - - + +
1883B LEU* 5.8 3.6 - - + -
1884B GLU* 5.6 7.0 - - + +
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Residues in contact with VAL1866 (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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1862B ASP* 2.9 33.8 + - + +
1863B GLU* 4.1 7.4 - - - +
1865B LEU* 1.3 78.4 - - - +
1867B ALA* 1.3 61.0 + - + +
1869B GLU* 4.4 2.4 - - - +
1870B LYS* 3.5 20.4 + - + +
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Residues in contact with ALA1867 (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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1368B THR* 4.7 8.0 - - + +
1372B THR* 4.1 20.9 - - + +
1863B GLU 3.9 7.1 + - - +
1864B ILE 3.1 7.4 + - - +
1866B VAL* 1.3 78.6 - - + +
1868B LEU* 1.3 61.3 + - - +
1869B GLU 3.1 5.2 - - - -
1870B LYS* 3.9 5.0 - - - +
1871B ASP* 3.2 27.5 + - - +
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Residues in contact with LEU1868 (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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1365B PHE* 4.1 32.5 - - + -
1368B THR* 3.8 27.6 - - + +
1857B ILE* 6.3 1.1 - - + -
1864B ILE* 2.8 38.3 + - + +
1865B LEU* 3.3 13.9 + - + +
1867B ALA* 1.3 76.3 - - - +
1869B GLU* 1.3 61.1 + - - +
1870B LYS 3.5 0.2 - - - -
1871B ASP* 5.0 0.4 - - + -
1874B ALA* 3.0 32.7 - - + +
1879B LEU* 4.2 28.4 - - + +
1880B ARG* 4.2 13.7 + - + +
1883B LEU* 5.1 6.1 - - + -
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Residues in contact with GLU1869 (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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1865B LEU* 3.0 17.6 + - + +
1866B VAL* 4.4 2.5 - - - +
1868B LEU* 1.3 78.9 - - - +
1870B LYS* 1.3 59.1 + - - +
1871B ASP 3.5 0.7 - - - -
1875B ARG* 3.2 37.5 + - - +
1880B ARG* 3.0 47.8 + - + +
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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