Contacts of the helix formed by residues 686 - 692 (chain C) in PDB entry 2FGJ
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 686 (chain C).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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670C ALA 4.6 5.4 - - - +
671C ASP* 3.3 28.5 - - - +
672C ARG* 4.9 1.6 - - - +
673C ILE* 5.0 0.4 - - - +
685C GLY* 1.3 76.3 - - - +
687C HIS* 1.3 67.7 + - - +
688C LYS* 3.4 4.9 - - + +
689C GLU* 2.8 35.1 + - + +
690C LEU* 3.1 21.4 + - - +
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Residues in contact with HIS 687 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
668C LYS* 3.3 58.2 + - + +
670C ALA 5.3 1.6 + - - -
673C ILE* 4.1 16.9 - - + +
686C LYS* 1.3 73.3 - - - +
688C LYS* 1.3 70.0 + - + +
690C LEU* 3.2 5.6 + - - +
691C LEU* 3.2 33.8 + - + +
698C TYR* 2.9 28.2 + + - -
702C TYR* 3.7 32.3 + + - -
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Residues in contact with LYS 688 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
686C LYS* 3.4 3.9 - - + +
687C HIS* 1.3 86.6 - - + +
689C GLU* 1.3 63.9 + - + +
690C LEU 3.1 0.2 - - - -
691C LEU* 3.4 4.9 + - - +
692C SER* 3.0 33.7 + - - +
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Residues in contact with GLU 689 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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684C GLN 5.5 1.7 - - - +
685C GLY* 3.7 8.0 - - - -
686C LYS* 2.8 56.1 + - - +
688C LYS* 1.3 77.7 - - + +
690C LEU* 1.3 60.5 + - - +
692C SER* 4.0 15.4 - - - -
693C GLU* 4.6 7.3 + - - +
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Residues in contact with LEU 690 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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673C ILE* 3.8 25.8 - - + +
675C VAL* 4.6 1.3 - - + -
683C GLU* 3.7 35.0 - - + +
684C GLN 3.1 25.6 - - - +
685C GLY 3.4 20.2 - - - +
686C LYS 3.1 13.6 + - - +
687C HIS 3.6 4.5 - - - +
688C LYS 3.1 0.6 - - - -
689C GLU* 1.3 77.7 - - - +
691C LEU* 1.3 58.3 + - - +
692C SER 3.2 5.0 + - - -
693C GLU* 3.8 6.5 + - - +
696C SER* 3.3 12.5 + - - -
698C TYR* 3.6 32.1 - - + +
699C SER* 3.3 13.0 + - - -
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Residues in contact with LEU 691 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
687C HIS* 3.2 26.3 + - + +
688C LYS* 3.9 5.2 - - - +
690C LEU* 1.3 74.1 - - - +
692C SER* 1.3 61.9 + - - +
693C GLU 3.3 4.1 + - - +
694C PRO* 5.4 0.2 - - - +
698C TYR* 4.2 6.0 - - + -
699C SER* 3.6 28.8 + - - +
702C TYR* 3.7 51.4 - - + -
703C GLN 5.3 0.2 - - - +
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Residues in contact with SER 692 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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688C LYS* 3.0 25.1 + - - +
689C GLU* 4.0 12.9 - - - -
690C LEU 3.2 0.6 - - - -
691C LEU* 1.3 79.4 - - - +
693C GLU* 1.3 60.8 + - - +
694C PRO* 3.6 9.2 - - - +
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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