Contacts of the strand formed by residues 685 - 688 (chain A) in PDB entry 4AY6
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 LYS 685 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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665A ASP 3.0 13.5 + - - +
666A TYR* 3.3 12.8 - - + -
667A ILE 3.1 22.5 + - - -
683A SER 5.5 3.1 - - - -
684A GLU* 1.3 74.3 - - - +
686A LEU* 1.3 63.0 + - - +
1023A PRO* 3.6 29.4 - - + +
1024A ASP* 3.8 38.1 + - - +
1025A HIS* 3.7 25.0 + - + +
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Residues in contact with LEU 686 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
666A TYR* 4.4 1.2 - - - -
667A ILE* 3.9 18.4 - - + -
669A THR* 4.5 7.6 - - + -
674A SER* 3.6 14.8 - - - +
676A ALA* 4.8 4.3 - - - -
679A ALA* 4.0 24.0 - - + +
682A TYR* 3.7 30.7 - - + -
684A GLU 4.4 4.3 - - - +
685A LYS* 1.3 72.7 - - - +
687A ALA* 1.3 59.7 + - - +
688A TYR* 3.6 35.2 - - + +
1025A HIS* 3.2 19.9 + - + +
1026A MET* 2.8 29.5 + - - +
1027A ILE* 4.4 5.6 - - + -
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Residues in contact with ALA 687 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
666A TYR* 4.1 7.9 - - + -
667A ILE 3.0 14.5 + - - +
668A ILE* 3.5 3.6 - - + -
669A THR* 2.9 25.8 + - - +
685A LYS 3.7 0.2 + - - -
686A LEU* 1.3 74.4 - - - +
688A TYR* 1.3 62.7 + - - +
1009A LEU* 3.7 18.3 - - + +
1013A MET* 3.5 32.5 - - + -
1026A MET* 3.9 7.0 - - + -
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Residues in contact with TYR 688 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
669A THR* 3.3 4.7 - - + -
670A ASP* 3.9 13.9 - - - -
671A GLN* 3.4 37.1 - - + +
674A SER 2.6 30.7 + - - -
675A PRO* 3.7 1.2 - - - +
676A ALA* 3.4 20.4 + - + +
686A LEU* 3.6 25.0 - - + +
687A ALA* 1.3 76.4 - - - +
689A MET* 1.3 68.3 + - - +
690A PRO* 4.1 1.9 - - - +
1009A LEU* 3.5 19.1 - - - +
1026A MET 3.2 14.1 + - - +
1027A ILE* 3.6 42.8 - - + +
1028A LYS* 5.9 1.6 - - + -
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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
------------------------------------------------------------
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