Contacts of the strand formed by residues 437 - 440 (chain E) in PDB entry 3KHU
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 PHE 437 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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321E SER* 3.5 28.9 - - - -
322E LEU* 3.8 26.9 - - + -
323E PHE* 6.1 2.0 - + - -
409E HIS 3.2 10.4 + - - +
410E ALA* 3.3 3.5 - - + -
411E VAL 2.9 24.3 + - - -
432E MET* 3.8 4.4 - - - +
435E PRO* 3.6 36.8 - - + -
436E ALA* 1.3 74.5 - - - +
438E ILE* 1.3 65.7 + - - +
439E PHE* 3.5 36.3 - + + -
457E PHE* 4.5 0.7 - - - -
458E GLN* 3.3 50.0 - - + +
460E GLU* 4.6 3.1 - - - -
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Residues in contact with ILE 438 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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411E VAL* 3.4 20.9 - - + +
413E ILE* 4.6 9.2 - - + -
425E TYR* 3.9 22.0 - - + -
437E PHE* 1.3 75.6 - - - +
439E PHE* 1.3 70.8 + - - +
440E ASP 4.5 0.7 - - - +
445E LEU* 3.9 13.7 - - + -
452E LEU* 4.0 16.8 - - + -
457E PHE* 3.5 46.4 - - + -
458E GLN 2.8 10.9 + - - +
459E ILE* 3.5 18.3 - - + +
460E GLU* 2.9 28.8 + - - +
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Residues in contact with PHE 439 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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314E PHE* 3.8 21.2 - + + -
317E ARG* 4.3 9.4 - - + -
318E ILE* 3.7 44.4 - - + -
321E SER* 3.5 30.7 - - - -
322E LEU* 5.5 0.9 - - + -
410E ALA* 4.1 14.1 - - + -
411E VAL 2.8 11.9 + - - +
412E VAL* 3.5 4.8 - - + -
413E ILE 2.9 26.5 + - - -
437E PHE* 3.5 30.5 - + + -
438E ILE* 1.3 74.1 - - - +
440E ASP* 1.3 60.5 + - - +
441E GLY 3.5 2.7 + - - -
460E GLU* 3.5 40.2 - - + -
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Residues in contact with ASP 440 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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314E PHE* 4.2 2.8 - - - -
413E ILE* 4.2 8.5 - - + +
438E ILE* 3.9 0.6 - - + -
439E PHE* 1.3 68.9 - - - +
441E GLY* 1.3 58.9 + - - +
442E ARG 3.0 15.8 + - - -
443E ARG* 3.0 13.7 + - - -
444E VAL* 2.9 33.9 + - - +
445E LEU* 2.9 27.7 + - + +
446E ASP* 4.3 0.3 + - - +
449E HIS* 5.1 1.1 + - - +
459E ILE* 4.4 12.6 - - + -
460E GLU 2.8 13.7 + - - +
461E THR* 2.5 40.9 + - - +
462E ILE* 3.4 5.4 + - - +
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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