Contacts of the helix formed by residues 489 - 494 (chain G) in PDB entry 2VKZ
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 LYS 489 (chain G).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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346G GLN* 5.9 3.6 - - - +
371G VAL* 4.1 24.5 - - + -
462G THR 3.3 10.5 + - - +
463G PHE* 3.4 43.7 - - + +
487G PRO* 3.9 9.2 + - + -
488G VAL* 1.3 70.7 - - - +
490G TRP* 1.3 64.2 + - - +
491G GLU 3.3 2.0 - - - -
492G THR* 3.0 29.0 + - + +
493G THR* 3.0 21.3 + - - +
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Residues in contact with TRP 490 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
159G ILE* 3.5 14.4 - - + -
271G THR* 4.0 18.4 - - + -
272G GLY 3.6 14.4 - - - -
273G HIS* 3.5 31.9 - + + -
371G VAL 3.5 4.6 + - - -
372G ASN* 3.9 25.6 - - - +
488G VAL* 3.0 18.5 + - + -
489G LYS* 1.3 70.5 - - - +
491G GLU* 1.3 58.5 + - - +
493G THR* 3.0 23.9 - - + +
494G THR* 2.9 44.4 + - + +
512G LEU* 3.4 24.2 - - + +
515G LEU* 4.3 6.3 - - + -
516G THR* 2.7 40.3 - - + +
519G ASN* 3.7 23.8 - - - -
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Residues in contact with GLU 491 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
371G VAL 4.4 3.8 + - - +
372G ASN 5.0 0.4 + - - -
373G GLY* 3.6 23.0 - - - -
374G ALA* 3.8 5.6 + - - +
489G LYS 3.1 0.8 + - - -
490G TRP* 1.3 79.2 - - - +
492G THR* 1.3 64.7 + - + +
494G THR* 3.1 30.1 + - + +
495G GLN* 3.6 5.5 + - - +
519G ASN* 3.8 49.4 - - + +
520G LYS* 6.0 0.9 - - - -
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Residues in contact with THR 492 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
463G PHE 3.7 13.7 + - - -
464G ASP 3.9 6.6 + - - +
465G GLY* 3.4 10.1 - - - -
489G LYS* 3.0 33.9 + - + +
491G GLU* 1.3 79.0 - - + +
493G THR* 1.3 59.4 + - - +
494G THR 3.2 0.2 - - - -
495G GLN* 3.4 37.3 + - - +
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Residues in contact with THR 493 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
271G THR* 4.0 12.8 - - - +
460G TYR* 3.6 27.4 + - - +
461G ASP 2.9 25.2 + - - -
462G THR* 3.5 21.2 - - - +
465G GLY* 3.7 9.2 - - - -
488G VAL* 4.6 1.6 - - + -
489G LYS 3.0 15.5 + - - +
490G TRP* 3.0 42.1 - - + +
492G THR* 1.3 76.6 + - - +
494G THR* 1.3 57.0 + - - +
495G GLN 3.3 4.3 + - - -
496G PHE* 4.4 0.9 - - - -
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Residues in contact with THR 494 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
271G THR* 6.2 0.4 - - - -
490G TRP* 2.9 46.9 + - + +
491G GLU* 3.1 23.6 + - + +
493G THR* 1.3 77.6 - - - +
495G GLN* 1.3 59.2 + - - +
496G PHE* 3.3 28.4 + - - -
501G ILE* 4.7 1.6 - - - +
516G THR* 5.5 1.7 - - - -
519G ASN* 5.7 0.9 - - - +
520G LYS* 2.9 45.3 + - - -
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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
------------------------------------------------------------
Atomic class I II III IV V VI VII VIII
------------------------------------------------------------
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