Contacts of the strand formed by residues 809 - 812 (chain A) in PDB entry 4B87
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 VAL 809 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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801A LEU* 4.0 22.4 - - + -
802A PHE 3.5 7.9 - - - +
803A TYR* 3.7 34.8 - - + -
807A GLY 3.9 9.2 - - - +
808A THR* 1.3 76.6 - - - +
810A ILE* 1.3 62.4 + - - +
830A GLN* 4.3 7.0 - - + -
831A LYS 3.6 25.6 - - - +
832A VAL* 3.8 7.4 - - + +
833A HIS* 2.7 40.5 + - + +
834A MET 3.2 8.0 + - - +
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Residues in contact with ILE 810 (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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707A ILE* 3.7 27.1 - - + -
708A PRO* 3.7 18.6 - - + -
800A ILE 3.5 1.2 - - - +
801A LEU* 3.3 8.5 - - - +
802A PHE* 2.7 59.2 + - + +
804A LEU* 3.7 20.6 - - + -
808A THR* 3.9 13.7 - - + +
809A VAL* 1.3 78.5 - - - +
811A LEU* 1.3 65.5 + - - +
812A HIS 4.4 0.2 - - - +
832A VAL* 4.5 0.2 - - - -
834A MET* 3.3 19.1 - - + +
836A TYR* 3.6 27.8 - - + -
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Residues in contact with LEU 811 (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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789A LEU* 4.2 13.0 - - + -
799A MET* 3.9 23.1 - - + -
800A ILE 3.4 17.7 - - - +
801A LEU* 4.0 13.7 - - + -
810A ILE* 1.3 74.7 - - - +
812A HIS* 1.3 57.6 + - - +
813A THR* 4.5 4.5 - - + -
827A LEU* 3.8 28.3 - - + -
832A VAL* 3.8 17.9 - - + +
834A MET 2.9 9.5 + - - +
835A LEU* 3.3 19.2 - - + +
836A TYR 2.7 31.4 + - - -
1003A PHE* 3.8 19.7 - - + -
1007A LEU* 4.1 6.1 - - + -
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Residues in contact with HIS 812 (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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704A TYR 4.7 3.6 + - - -
705A LYS* 5.7 0.6 - - - -
707A ILE* 4.4 2.7 - - + -
714A VAL* 3.6 42.9 + - + +
715A ASP* 5.2 2.0 - - - -
731A THR* 4.4 1.0 - - + +
799A MET* 3.1 5.9 - - - +
800A ILE* 2.7 48.0 + - + +
802A PHE* 4.1 14.1 - - + -
810A ILE* 4.0 1.2 - - + +
811A LEU* 1.3 72.1 - - - +
813A THR* 1.3 59.4 + - - +
814A GLY* 2.9 38.1 + - - -
836A TYR* 3.6 42.4 - + + +
1015A THR* 4.1 16.1 - - + +
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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