Contacts of the helix formed by residues 1184 - 1192 (chain Q) in PDB entry 5IJO
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 ASP1184 (chain Q).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1183Q MET* 1.3 75.9 - - - +
1185Q ILE* 1.3 55.9 + - - +
1186Q THR* 4.2 4.0 - - - +
1187Q LYS* 3.1 23.1 + - + +
1188Q LEU* 2.7 32.9 + - - +
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Residues in contact with ILE1185 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1183Q MET 3.5 3.5 + - - -
1184Q ASP* 1.3 68.9 - - - +
1186Q THR* 1.3 56.4 + - - +
1188Q LEU* 3.0 8.4 + - - +
1189Q TYR* 2.7 37.7 + - - +
1205Q ILE* 5.7 9.7 - - + +
1209Q ALA* 5.7 9.9 - - + -
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Residues in contact with THR1186 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1184Q ASP* 3.3 4.1 - - - +
1185Q ILE* 1.3 78.7 - - - +
1187Q LYS* 1.3 54.5 + - - +
1189Q TYR* 4.2 5.8 - - - -
1190Q GLY* 2.6 34.7 + - - -
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Residues in contact with LYS1187 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1183Q MET* 4.7 5.6 - - + -
1184Q ASP* 3.1 29.3 + - + +
1186Q THR* 1.3 79.8 - - - +
1188Q LEU* 1.3 56.9 + - - +
1191Q GLU* 2.8 40.8 + - + +
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Residues in contact with LEU1188 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1153Q ILE* 6.4 2.0 - - + -
1183Q MET* 4.9 9.8 - - + +
1184Q ASP 2.7 17.5 + - - +
1185Q ILE* 3.4 11.2 - - - +
1187Q LYS* 1.3 74.1 - - - +
1189Q TYR* 1.3 56.8 + - - +
1191Q GLU* 5.2 0.2 - - - -
1192Q PHE* 3.0 36.1 + - + +
1193Q ALA* 3.2 4.0 + - - +
1205Q ILE* 6.0 4.7 - - + -
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Residues in contact with TYR1189 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1185Q ILE 2.7 18.8 + - - +
1186Q THR* 3.6 7.0 - - - +
1188Q LEU* 1.3 72.0 - - - +
1190Q GLY* 1.3 63.8 + - - +
1193Q ALA* 3.1 29.2 + - + +
1194Q ASP* 3.2 11.1 + - - +
1202Q LYS* 6.0 2.5 - - + -
1205Q ILE* 5.4 13.0 - - + +
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Residues in contact with GLY1190 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1186Q THR 2.6 19.5 + - - -
1189Q TYR* 1.3 76.1 - - - +
1191Q GLU* 1.3 61.6 + - - +
1194Q ASP* 3.9 18.2 - - - +
1195Q PRO* 4.2 2.8 - - - +
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Residues in contact with GLU1191 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1187Q LYS* 2.8 24.5 + - + +
1190Q GLY* 1.3 81.1 - - - +
1192Q PHE* 1.3 58.6 + - + +
1195Q PRO* 3.4 19.4 - - - +
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Residues in contact with PHE1192 (chain Q).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1157Q ILE* 5.3 13.5 - - + -
1188Q LEU* 3.0 19.5 + - + +
1191Q GLU* 1.3 79.0 - - + +
1193Q ALA* 1.3 59.7 + - - +
1194Q ASP 3.4 0.2 - - - -
1195Q PRO 3.5 0.2 - - - -
1196Q PHE* 2.9 36.8 + - + +
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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