Contacts of the strand formed by residues 493 - 497 (chain D) in PDB entry 4K9N
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 GLN 493 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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491D GLY 4.1 1.6 + - - -
492D VAL* 1.3 77.5 - - - +
494D ALA* 1.3 68.7 + - - +
495D LEU* 4.3 9.0 - - + +
509D GLU* 3.3 31.5 + - - +
513D ALA* 4.2 11.0 - - - +
515D GLY 6.1 0.2 - - - -
516D PRO 3.9 12.1 + - - +
517D VAL* 3.5 21.3 - - + +
518D LEU* 2.9 24.4 + - - -
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Residues in contact with ALA 494 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
484D ARG* 3.8 32.8 + - + +
487D ALA* 3.8 23.6 - - + -
488D LYS* 5.1 1.1 - - + +
492D VAL 3.4 1.5 + - - +
493D GLN* 1.3 78.9 - - - +
495D LEU* 1.3 72.7 + - - +
518D LEU* 3.3 7.2 - - + +
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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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484D ARG* 3.9 12.3 - - - +
493D GLN* 4.3 9.2 - - + +
494D ALA* 1.3 83.4 - - - +
496D LYS* 1.3 60.7 + - - +
506D SER* 3.6 44.2 - - - +
509D GLU* 3.8 34.5 - - + +
510D ALA 4.4 1.3 - - - +
517D VAL* 3.8 25.4 - - + -
518D LEU 2.8 8.4 + - - +
519D ILE* 3.3 5.9 - - + -
520D GLU 2.9 24.0 + - - -
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Residues in contact with LYS 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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484D ARG* 3.5 43.2 - - - +
495D LEU* 1.3 74.7 - - - +
497D ALA* 1.3 63.6 + - - +
498D ASP* 3.2 36.8 + - - +
502D GLN* 4.3 9.1 - - - +
506D SER* 2.8 20.1 + - - -
519D ILE* 4.6 1.1 - - - -
520D GLU* 3.5 26.9 - - + +
522D SER* 4.6 4.2 + - - +
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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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353D LEU* 4.2 0.4 - - + +
496D LYS* 1.3 79.1 - - - +
498D ASP* 1.3 63.1 + - - +
499D ASN 3.4 1.1 - - - +
502D GLN* 3.8 7.4 - - - +
503D LEU* 3.7 34.5 - - + +
519D ILE* 4.3 5.8 - - + -
520D GLU 2.8 11.9 + - - +
521D VAL* 3.4 19.1 - - + +
522D SER* 2.8 27.0 + - - -
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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