Contacts of the strand formed by residues 460 - 463 (chain A) in PDB entry 4IC3
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 460 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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458A ILE* 3.9 3.9 - - - +
459A ALA* 1.3 89.0 - - - +
461A VAL* 1.3 72.2 + - - +
462A PHE* 3.8 25.6 - - + -
467A HIS 4.1 0.5 - - - +
468A LEU* 3.2 25.9 - - - +
469A VAL 4.0 3.3 + - - -
470A THR* 3.2 11.8 + - - +
471A CYS 3.7 19.3 - - - +
472A LYS* 3.8 22.7 - - + +
475A ALA* 3.9 7.6 - - + -
491A LYS* 3.9 19.5 - - + +
492A GLN 3.4 8.7 - - - +
493A LYS* 3.9 19.7 - - + +
494A ILE* 3.9 1.9 - - - +
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Residues in contact with VAL 461 (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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460A ILE* 1.3 75.7 - - - +
462A PHE* 1.3 74.9 + - - +
463A VAL* 3.6 1.8 + - + -
466A GLY* 3.9 13.7 - - - +
467A HIS 3.6 4.3 - - - +
468A LEU* 3.9 12.8 - - + -
491A LYS* 3.9 0.3 - - - -
492A GLN* 2.8 63.8 + - + +
494A ILE* 3.9 8.9 - - + +
461B VAL* 3.6 17.3 - - + -
492B GLN* 4.5 4.0 - - + -
494B ILE* 3.6 26.9 - - + -
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Residues in contact with PHE 462 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
460A ILE* 3.8 26.0 - - + -
461A VAL* 1.3 74.0 - - - +
463A VAL* 1.3 55.9 + - - +
465A CYS* 3.9 14.8 - - - -
466A GLY* 2.7 35.5 + - - -
467A HIS 3.0 12.5 + - - +
469A VAL* 3.7 20.0 - - + -
470A THR* 3.8 20.9 - - + -
475A ALA* 4.3 4.0 - - + -
478A VAL* 3.7 20.6 - - + -
481A CYS* 3.9 19.3 - - + -
482A PRO* 3.6 23.8 - - + -
488A ILE* 3.8 36.8 - - + -
490A PHE 3.9 2.0 - - - -
491A LYS* 4.1 9.6 - - + -
492B GLN* 4.5 0.5 + - - -
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Residues in contact with VAL 463 (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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461A VAL* 3.6 4.7 + - + +
462A PHE* 1.3 75.9 - - - +
464A PRO* 1.3 74.6 - - + +
465A CYS* 3.6 0.7 - - - -
488A ILE* 3.5 6.1 - - - +
489A THR* 2.9 35.9 + - - +
490A PHE* 2.9 42.4 + - + +
492A GLN* 4.7 7.2 - - + -
463B VAL* 5.3 5.4 - - + -
490B PHE* 5.7 3.8 - - + -
492B GLN* 3.5 29.2 - - + +
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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