Contacts of the strand formed by residues 457 - 462 (chain A) in PDB entry 4K4I
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 LEU 457 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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448A LEU* 3.8 38.8 - - + +
451A LEU* 3.3 29.9 + - + -
452A ARG* 4.4 22.4 - - + +
455A GLY* 3.9 8.0 - - - +
456A PHE* 1.3 89.5 - - + +
458A THR* 1.3 61.1 + - - +
460A ASP* 4.6 6.7 - - - +
473A TYR* 3.8 31.6 - - + +
476A VAL 3.4 10.1 - - - +
477A CYS* 4.2 1.8 - - + -
489A LEU* 4.2 15.3 - - + -
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Residues in contact with THR 458 (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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455A GLY 4.1 10.5 - - - +
456A PHE 4.1 8.5 - - - +
457A LEU* 1.3 77.1 - - - +
459A ASP* 1.3 83.3 + - - +
476A VAL* 2.9 26.4 + - - +
478A ARG* 4.2 22.0 - - + +
486A HIS* 3.4 23.4 - - + +
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Residues in contact with ASP 459 (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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375A ILE* 4.0 20.5 - - + +
378A LYS* 3.0 28.0 + - - -
379A HIS* 3.1 26.0 + - - -
457A LEU* 3.8 1.0 - - - +
458A THR* 1.3 101.7 + - - +
460A ASP* 1.3 65.7 + - - +
473A TYR* 3.2 6.9 + - - -
476A VAL* 3.0 38.2 + - + +
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Residues in contact with ASP 460 (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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371A THR* 5.7 1.7 - - - +
372A GLN* 5.6 0.3 - - - +
375A ILE* 3.6 16.9 - - - +
452A ARG* 2.8 34.0 + - - -
457A LEU* 4.6 4.7 - - - +
459A ASP* 1.3 78.2 + - - +
461A LEU* 1.3 64.4 + - - +
463A SER* 4.5 10.1 - - - -
465A GLU* 3.8 4.0 - - - +
473A TYR* 2.5 39.2 + - + -
474A LEU 4.2 0.2 - - - -
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Residues in contact with LEU 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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342A TRP* 3.8 35.9 - - + -
372A GLN* 2.8 49.2 - - - +
375A ILE* 3.7 31.9 - - + -
376A GLY 5.0 0.7 - - - +
383A PHE* 5.0 2.2 - - + -
460A ASP* 1.3 75.6 - - - +
462A VAL* 1.3 58.6 - - - +
463A SER 4.2 0.7 - - - -
474A LEU 2.9 11.9 + - - +
475A GLY* 3.9 11.9 - - - +
476A VAL* 4.2 9.0 - - + -
488A ARG* 3.5 40.8 - - - +
10B T 4.4 5.1 + - - +
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Residues in contact with VAL 462 (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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342A TRP* 4.1 9.4 - - + -
372A GLN* 3.3 22.7 - - - +
461A LEU* 1.3 77.5 - - - +
463A SER* 1.3 62.9 + - - +
464A GLN 5.5 0.2 - - - +
472A LYS* 4.0 16.1 - - + +
473A TYR* 3.6 3.3 - - - -
474A LEU* 2.9 59.3 + - + +
9B C 3.5 38.6 - - - +
10B T 3.7 7.9 - - - -
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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