Contacts of the strand formed by residues 472 - 475 (chain F) in PDB entry 1K9V
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 ILE 472 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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374F VAL* 3.5 42.4 - - + -
378F ARG 5.6 0.9 - - - +
380F VAL* 3.4 14.8 - - + +
390F LEU* 3.9 21.8 - - + -
405F LEU* 3.7 26.9 - - + +
406F ILE* 3.8 22.7 - - + +
468F ARG* 3.3 6.4 - - - +
469F LYS* 3.0 46.2 + - + +
470F GLY 3.2 0.2 - - - -
471F ARG* 1.3 82.7 - - + +
473F LEU* 1.3 63.8 + - - +
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Residues in contact with LEU 473 (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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379F TYR* 5.1 12.8 - - + -
380F VAL 2.9 7.8 + - - +
381F VAL* 3.2 26.4 - - + -
382F GLY 2.7 29.6 + - - -
390F LEU* 3.6 9.2 - - - +
432F PHE* 3.9 26.7 - - + -
453F LEU* 4.2 10.1 - - + -
467F VAL* 3.5 5.2 - - - +
468F ARG* 4.1 25.1 - - + +
470F GLY 4.9 4.3 - - - +
471F ARG* 4.6 5.4 - - - +
472F ILE* 1.3 83.1 - - - +
474F GLY* 1.3 54.6 + - - +
475F PHE* 4.1 15.7 - - + -
493F VAL* 4.4 10.5 - - + -
496F CYS* 5.8 2.2 - - + -
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Residues in contact with GLY 474 (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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382F GLY 3.1 9.0 - - - -
387F MET* 3.4 19.5 - - - -
390F LEU* 4.0 3.4 - - - -
466F ALA* 3.1 5.4 - - - +
467F VAL* 2.9 38.0 + - - +
473F LEU* 1.3 77.4 - - - +
475F PHE* 1.3 67.0 + - - -
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Residues in contact with PHE 475 (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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381F VAL* 3.8 28.3 - - + -
382F GLY 2.8 10.5 + - - +
383F VAL* 3.5 3.7 - - + -
384F CYS 2.7 31.4 + - - -
387F MET* 3.5 4.0 - - - +
428F PHE* 4.1 11.9 - + - -
432F PHE* 4.2 8.5 - + - -
453F LEU* 3.9 20.0 - - + -
465F SER 3.5 2.7 - - - -
466F ALA* 3.8 7.2 - - + -
473F LEU* 4.1 24.9 - - + -
474F GLY* 1.3 75.9 - - - -
476F GLN* 1.3 56.7 + - - +
477F PHE* 3.2 39.6 + + + +
479F PRO* 4.7 9.0 - - + -
489F LEU* 3.9 22.0 - - + -
493F VAL* 3.9 18.4 - - + -
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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