Contacts of the strand formed by residues 490 - 494 (chain D) in PDB entry 4ICU
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 490 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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449A LYS* 5.1 13.0 - - - +
462A GLU* 6.0 1.6 - - - +
475D LYS* 5.0 0.2 - - - +
488D ASP 4.1 9.4 - - - +
489D LEU* 1.3 79.5 - - - +
491D LEU* 1.3 62.6 + - - +
492D SER* 5.4 0.2 + - - -
504D GLU* 6.1 0.7 - - - +
506D GLU* 5.4 4.0 - - - +
524D LEU 3.6 4.5 - - - +
525D VAL* 3.8 1.4 - - - -
526D ARG* 2.8 59.3 + - + +
527D TRP* 4.7 7.6 - - - +
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Residues in contact with LEU 491 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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471D ILE* 4.1 13.2 - - + -
474D VAL* 3.6 30.1 - - + -
475D LYS* 4.1 27.4 - - + +
478D LEU* 3.8 10.3 - - + -
489D LEU* 4.2 2.3 + - + -
490D LEU* 1.3 78.5 - - - +
492D SER* 1.3 64.0 + - - +
504D GLU* 3.8 4.0 - - - +
505D LEU* 2.9 44.8 + - + +
506D GLU* 4.8 3.0 + - - +
512D LEU* 6.1 0.2 - - + -
523D LEU* 4.2 15.5 - - + -
524D LEU 3.5 14.8 - - - +
525D VAL* 3.8 24.0 - - + -
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Residues in contact with SER 492 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
490D LEU 5.4 0.2 + - - -
491D LEU* 1.3 76.3 - - - +
493D TYR* 1.3 63.6 + - - +
502D GLU* 2.6 32.4 + - - -
503D ILE 3.2 20.4 - - - -
504D GLU* 4.2 9.4 - - - -
505D LEU* 4.1 6.5 - - - -
523D LEU* 3.5 7.3 - - - +
524D LEU* 2.8 37.4 + - - +
526D ARG* 3.6 6.5 + - - -
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Residues in contact with TYR 493 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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492D SER* 1.3 76.4 - - - +
494D GLU* 1.3 65.1 + - - +
495D SER* 4.8 9.0 - - - -
501D ARG 3.9 0.5 - - - +
502D GLU* 3.5 4.2 - - - -
503D ILE* 3.1 71.5 + - + +
505D LEU* 3.6 30.1 - - + -
515D TYR 2.8 26.5 + - - -
516D SER* 4.2 6.6 + - - -
517D VAL* 4.1 20.9 - - + -
521D ASP* 3.5 27.6 - - - -
522D CYS 3.1 16.2 - - - +
523D LEU* 4.5 5.2 - - + -
524D LEU* 3.8 5.4 - - - -
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Residues in contact with GLU 494 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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451D LYS* 4.5 12.1 + - - -
459D LYS* 5.8 1.6 + - - -
493D TYR* 1.3 77.0 - - - +
495D SER* 1.3 63.8 + - - +
496D PRO* 4.4 0.9 - - - +
499D PRO* 5.4 2.6 - - + +
500D GLY* 4.5 23.3 + - - +
501D ARG 3.4 20.2 - - - +
502D GLU* 4.0 9.4 - - + +
503D ILE* 5.9 0.7 - - - -
521D ASP* 3.8 3.1 - - - +
522D CYS* 3.0 48.2 + - + +
524D LEU* 3.7 28.8 - - + +
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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