Contacts of the helix formed by residues 643 - 651 (chain F) in PDB entry 5LS6
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 TYR 643 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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616F LEU* 3.4 50.5 - - + -
619F LEU* 3.8 24.7 + - + +
620F HIS* 3.7 24.5 - + + -
623F LYS* 4.2 19.3 - - + +
639F PHE* 2.8 43.7 + + + +
642F ASN* 1.3 87.1 - - + +
644F GLY* 1.3 54.9 + - - -
645F GLN 3.1 3.1 - - - -
646F LYS* 2.9 26.1 + - - +
647F ILE* 2.9 28.6 + - + +
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Residues in contact with GLY 644 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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639F PHE 3.1 7.7 + - - -
640F VAL* 3.2 19.7 + - - -
643F TYR* 1.3 76.1 - - - +
645F GLN* 1.3 60.2 + - - +
647F ILE* 3.3 8.9 + - - +
648F ILE* 3.1 30.3 + - - +
681F LEU* 3.6 21.1 - - - +
684F MET* 4.3 4.7 - - - -
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Residues in contact with GLN 645 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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642F ASN 3.7 12.4 + - - +
643F TYR 3.1 0.2 - - - -
644F GLY* 1.3 77.7 - - - +
646F LYS* 1.3 64.6 + - + +
648F ILE* 3.4 16.7 + - - +
649F LYS* 3.2 40.1 + - - +
684F MET* 3.8 39.5 + - - +
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Residues in contact with LYS 646 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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616F LEU* 4.4 26.7 - - + +
642F ASN 5.7 0.2 - - - +
643F TYR* 2.9 26.1 + - - +
645F GLN* 1.3 74.2 - - + +
647F ILE* 1.3 63.1 + - - +
649F LYS* 3.3 13.2 + - + +
650F LYS* 3.2 38.9 + - + +
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Residues in contact with ILE 647 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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613F VAL* 5.3 4.0 - - + -
616F LEU* 4.4 15.5 - - + -
639F PHE* 3.3 38.6 - - + -
640F VAL* 5.8 0.2 - - - -
643F TYR* 2.9 17.5 + - + +
644F GLY* 3.5 16.2 - - - +
645F GLN 3.3 0.2 - - - -
646F LYS* 1.3 75.9 - - - +
648F ILE* 1.3 63.4 + - - +
650F LYS 3.4 1.4 + - - -
651F ASN 3.3 5.0 + - - -
652F LEU* 3.2 58.7 + - + +
653F CYS* 4.0 6.3 - - - +
656F PHE* 4.2 15.3 - - + -
681F LEU* 4.2 15.7 - - + -
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Residues in contact with ILE 648 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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644F GLY 3.1 18.8 + - - +
645F GLN* 3.7 14.4 - - - +
646F LYS 3.3 0.2 - - - -
647F ILE* 1.3 75.2 - - - +
649F LYS* 1.3 67.0 + - + +
650F LYS 3.4 0.3 + - - -
651F ASN* 3.5 9.5 + - - -
653F CYS* 4.5 14.7 - - - -
681F LEU* 3.7 32.3 - - + +
684F MET* 3.7 25.4 - - + +
685F GLN* 3.8 28.3 - - + +
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Residues in contact with LYS 649 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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645F GLN* 3.2 44.8 - - - +
646F LYS* 3.3 16.0 + - + +
648F ILE* 1.3 82.3 - - + +
650F LYS* 1.3 64.0 + - + +
651F ASN* 3.2 5.0 + - - +
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Residues in contact with LYS 650 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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612F GLU* 3.3 46.0 + - + -
616F LEU* 4.9 7.5 - - + +
646F LYS* 3.2 24.8 + - + +
647F ILE 3.4 0.4 + - - -
648F ILE 3.3 0.4 - - - -
649F LYS* 1.3 79.7 - - + +
651F ASN* 1.3 71.4 + - - +
652F LEU* 3.7 23.5 - - + +
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Residues in contact with ASN 651 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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265D ASP* 3.1 59.9 + - - +
266D GLY* 4.2 1.2 - - - +
647F ILE 3.3 3.1 + - - -
648F ILE* 3.5 6.8 + - - +
649F LYS 3.2 7.4 + - - +
650F LYS* 1.3 82.9 - - - +
652F LEU* 1.3 64.9 + - - +
653F CYS* 3.9 5.7 + - - -
654F ARG* 4.5 8.4 + - - +
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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