Contacts of the strand formed by residues 1053 - 1056 (chain B) in PDB entry 4EC0
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 ILE1053 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1006B LEU* 3.4 6.8 - - - +
1007B THR* 3.0 50.9 + - + +
1042B ILE* 6.0 1.1 - - + -
1046B LEU* 4.0 23.6 - - + -
1050B LYS 3.5 19.3 - - - +
1051B ILE* 4.2 7.0 - - + -
1052B PRO* 1.3 78.8 - - - +
1054B LEU* 1.3 59.7 - - - +
1055B GLU* 3.6 35.4 - - + +
1060B THR* 4.0 16.4 - - + -
1061B LEU 3.1 14.8 - - - +
1062B HIS* 4.0 11.2 - - + -
1067B ILE* 4.3 3.6 - - - -
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Residues in contact with LEU1054 (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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1004B TYR* 3.7 25.1 - - + -
1005B LYS 3.4 28.5 - - - +
1006B LEU* 3.8 14.1 - - + +
1018B ILE* 4.9 0.7 - - + -
1022B PHE* 3.8 30.7 - - + -
1053B ILE* 1.3 75.3 - - - +
1055B GLU* 1.3 63.5 + - - +
1056B VAL* 3.6 14.0 + - + -
1059B LEU 3.6 1.0 - - - +
1061B LEU* 2.8 40.3 + - + +
1067B ILE* 3.7 37.1 - - + +
1071B LEU* 4.2 6.5 - - + -
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Residues in contact with GLU1055 (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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1003B ASN* 3.2 7.7 + - - +
1004B TYR* 3.5 2.1 - - - -
1005B LYS* 2.9 68.5 + - + +
1007B THR* 4.6 2.6 + - - -
1046B LEU* 5.6 1.4 - - - +
1053B ILE* 3.6 23.1 - - + +
1054B LEU* 1.3 72.5 - - - +
1056B VAL* 1.3 60.2 + - - +
1057B ASP 3.9 0.7 - - - -
1058B GLY* 4.4 16.0 - - - +
1059B LEU 3.3 6.1 - - - +
1060B THR* 3.6 21.9 + - - +
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Residues in contact with VAL1056 (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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83A MET* 4.4 11.0 - - + -
1002B PRO* 3.8 16.8 - - + -
1003B ASN 3.6 2.2 - - - -
1004B TYR* 3.8 21.5 - - + -
1054B LEU* 3.9 17.9 - - + -
1055B GLU* 1.3 73.7 - - - +
1057B ASP* 1.3 73.9 + - + +
1059B LEU* 2.8 32.2 + - + +
1061B LEU* 3.5 33.7 - - + -
1070B TYR* 4.1 15.7 - - + +
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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