Contacts of the helix formed by residues 497 - 504 (chain D) in PDB entry 5Y7K
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 ASN 497 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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55D LEU* 4.0 3.6 - - - -
56D LYS* 2.9 56.4 + - - +
477D LEU* 3.8 16.1 - - + +
478D PRO* 2.8 41.5 + - - +
480D TYR* 4.7 0.4 - - - -
495D GLU* 3.0 21.6 + - - +
496D ASP* 1.3 76.7 - - - +
498D SER* 1.3 64.3 + - - +
499D ALA 3.1 3.4 - - - +
500D LEU* 3.2 9.4 + - + +
501D ASP* 3.0 22.2 + - - +
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Residues in contact with SER 498 (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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495D GLU* 4.6 0.6 + - - -
496D ASP* 3.0 25.7 + - - -
497D ASN* 1.3 77.2 - - - +
499D ALA* 1.3 64.4 + - - +
501D ASP* 3.4 9.8 + - - +
502D LYS* 3.1 31.5 + - - +
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Residues in contact with ALA 499 (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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56D LYS* 4.1 20.9 - - - +
495D GLU* 5.7 0.2 + - - -
497D ASN 3.1 0.6 - - - -
498D SER* 1.3 82.2 + - - +
500D LEU* 1.3 60.8 + - - +
502D LYS* 3.1 22.4 + - - +
503D MET* 3.4 19.0 + - - +
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Residues in contact with LEU 500 (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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53D TYR* 3.6 25.1 - - + -
54D ARG 3.5 25.8 - - - +
55D LEU* 3.5 27.8 - - + -
56D LYS* 4.1 4.7 - - - +
477D LEU* 4.3 15.5 - - + -
497D ASN* 3.2 21.7 + - + +
499D ALA* 1.3 76.6 - - - +
501D ASP* 1.3 68.0 + - - +
502D LYS 3.1 0.2 + - - -
503D MET* 3.1 9.1 + - + +
504D LEU* 3.0 48.9 + - + +
561D LEU* 4.4 6.3 - - + -
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Residues in contact with ASP 501 (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* 3.6 25.1 - - + +
496D ASP 5.7 0.2 - - - +
497D ASN 3.0 9.8 + - - +
498D SER* 3.5 13.2 - - - +
499D ALA 3.3 0.2 - - - -
500D LEU* 1.3 77.2 - - - +
502D LYS* 1.3 61.4 + - - +
504D LEU* 3.5 9.8 + - - +
505D GLN* 3.2 29.7 + - - +
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Residues in contact with LYS 502 (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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498D SER* 3.1 19.3 + - - +
499D ALA* 3.4 14.1 - - - +
500D LEU 3.1 0.6 - - - -
501D ASP* 1.3 76.4 + - - +
503D MET* 1.3 66.3 + - + +
505D GLN* 3.4 31.7 + - - +
506D ASN* 4.1 5.0 - - - +
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Residues in contact with MET 503 (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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52D THR* 4.0 20.2 - - + +
53D TYR* 3.7 34.7 - - + -
54D ARG 6.1 0.7 - - - -
499D ALA* 3.4 13.6 + - - +
500D LEU* 3.1 12.4 + - - +
502D LYS* 1.3 77.8 - - + +
504D LEU* 1.3 58.4 + - - +
505D GLN 3.1 3.9 + - - -
506D ASN* 3.3 18.1 + - - +
507D VAL* 3.3 14.2 - - - +
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Residues in contact with LEU 504 (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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53D TYR* 3.4 36.3 - - + -
477D LEU* 4.3 19.5 - - + -
500D LEU* 3.0 36.5 + - + +
501D ASP* 4.0 7.4 - - - +
502D LYS 3.3 0.6 - - - -
503D MET* 1.3 76.5 - - - +
505D GLN* 1.3 63.8 + - - +
506D ASN 3.5 0.4 - - - -
507D VAL* 3.4 20.5 - - + +
509D MET* 3.8 43.4 - - + +
559D PHE* 4.5 6.7 - - + -
561D LEU* 5.0 4.5 - - + -
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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