Contacts of the helix formed by residues 489 - 497 (chain D) in PDB entry 1U3Q
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 ASP 489 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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303D ASP* 2.8 34.0 + - - +
307D VAL* 5.8 0.3 - - - +
488D TYR* 1.3 85.8 - - - +
490D LEU* 1.3 66.4 + - + +
491D LEU 3.4 0.2 - - - -
492D LEU* 3.6 0.5 - - - +
493D GLU* 3.1 27.8 + - - +
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Residues in contact with LEU 490 (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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303D ASP* 3.5 11.9 + - - +
306D LEU* 3.6 14.4 - - + -
307D VAL* 3.4 42.0 - - + +
310D ILE* 3.5 31.0 - - + -
489D ASP* 1.3 77.4 - - + +
491D LEU* 1.3 66.8 + - - +
493D GLU* 3.1 15.5 + - + +
494D MET* 3.1 35.4 + - + +
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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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299D THR* 3.7 48.7 - - + +
302D ALA* 4.2 8.3 - - + -
303D ASP* 3.3 15.7 + - + +
306D LEU* 3.5 18.5 - - + +
335D TRP* 3.6 36.1 - - + -
476D LEU* 4.0 15.7 - - + -
487D VAL* 4.5 14.4 - - + -
488D TYR 5.3 3.1 - - - +
489D ASP 3.4 0.2 - - - -
490D LEU* 1.3 79.4 - - - +
492D LEU* 1.3 61.3 + - - +
494D MET* 3.5 0.6 + - - +
495D LEU* 3.1 23.0 + - + +
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Residues in contact with LEU 492 (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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480D LYS* 4.0 16.4 - - + -
487D VAL* 3.1 36.4 - - + +
488D TYR* 2.6 29.1 + - - +
489D ASP 3.3 2.1 + - - +
490D LEU 3.2 0.6 - - - -
491D LEU* 1.3 75.6 - - - +
493D GLU* 1.3 66.3 + - - +
495D LEU* 3.5 2.3 + - + +
496D ASN* 3.0 58.6 + - - +
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Residues in contact with GLU 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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332D GLU* 4.6 7.9 - - - +
489D ASP 3.1 20.5 + - - +
490D LEU* 3.4 18.5 - - + +
492D LEU* 1.3 78.5 - - + +
494D MET* 1.3 61.0 + - + +
496D ASN* 3.3 3.3 + - - +
497D ALA* 2.9 29.9 + - - +
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Residues in contact with MET 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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306D LEU* 3.7 32.1 - - + -
309D MET* 5.2 2.7 - - - -
310D ILE* 5.5 8.5 - - + -
331D LEU* 3.9 23.8 - - + +
332D GLU* 3.9 27.5 - - + +
335D TRP* 3.6 46.6 + - + +
473D MET* 4.3 3.5 - - - +
490D LEU* 3.1 24.6 + - + +
491D LEU* 3.8 6.7 - - - +
493D GLU* 1.3 79.7 - - - +
495D LEU* 1.3 63.3 + - - +
497D ALA* 3.2 19.8 + - - +
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Residues in contact with LEU 495 (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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335D TRP* 4.1 13.0 - - + -
473D MET* 4.3 13.8 - - + +
476D LEU* 3.6 45.1 - - + -
477D LEU* 3.6 50.3 - - + +
480D LYS* 3.9 21.1 - - + -
487D VAL* 4.2 16.6 - - + -
491D LEU* 3.1 19.3 + - + +
492D LEU* 3.9 4.7 - - - +
494D MET* 1.3 77.3 - - - +
496D ASN* 1.3 65.0 + - - +
497D ALA 4.3 2.8 - - - -
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Residues in contact with ASN 496 (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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477D LEU* 4.8 4.2 - - - +
480D LYS* 4.0 18.3 + - - +
492D LEU* 3.0 46.6 + - - +
493D GLU* 4.0 3.3 - - - +
495D LEU* 1.3 76.7 - - - +
497D ALA* 1.3 67.5 + - - +
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Residues in contact with ALA 497 (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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332D GLU* 3.3 47.8 - - + +
473D MET* 6.5 0.2 - - - -
493D GLU 2.9 14.1 + - - +
494D MET 3.2 15.8 + - - +
495D LEU 4.3 3.4 - - - -
496D ASN* 1.3 83.7 - - - +
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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