Contacts of the helix formed by residues 494 - 509 (chain K) in PDB entry 5KHU
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 494 (chain K).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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493K GLY* 3.8 24.5 - - - +
495K PHE* 3.7 29.2 - - - +
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Residues in contact with PHE 495 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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494K ASN* 3.7 31.2 - - - +
496K GLU* 3.8 26.0 - - - +
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Residues in contact with GLU 496 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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495K PHE* 3.8 29.2 - - - +
497K ASN* 3.8 24.7 - - - +
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Residues in contact with ASN 497 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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496K GLU* 3.8 27.1 - - - +
498K ALA* 3.8 29.2 - - - +
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Residues in contact with ALA 498 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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486K GLY* 4.3 24.0 - - - +
497K ASN* 3.8 29.2 - - - +
499K VAL* 3.8 27.8 - - - +
501K TYR* 4.4 16.4 - - - +
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Residues in contact with VAL 499 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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498K ALA* 3.8 24.5 - - - +
500K ASP* 3.7 29.8 - - - +
502K PHE* 4.5 14.8 - - - +
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Residues in contact with ASP 500 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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499K VAL* 3.7 29.4 - - - +
501K TYR* 3.8 26.2 - - - +
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Residues in contact with TYR 501 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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498K ALA* 4.4 15.0 - - - +
500K ASP* 3.8 24.9 - - - +
502K PHE* 3.8 29.6 - - - +
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Residues in contact with PHE 502 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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499K VAL* 4.5 17.9 - - - +
501K TYR* 3.8 28.3 - - - +
503K HIS* 3.7 29.4 - - - +
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Residues in contact with HIS 503 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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502K PHE* 3.7 29.6 - - - +
504K THR* 3.8 25.1 - - - +
506K LEU* 4.5 17.7 - - - +
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Residues in contact with THR 504 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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503K HIS* 3.8 25.8 - - - +
505K ALA* 3.8 29.2 - - - +
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Residues in contact with ALA 505 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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479K ALA* 4.1 25.4 - - - +
504K THR* 3.8 29.6 - - - +
506K LEU* 3.8 25.8 - - - +
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Residues in contact with LEU 506 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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503K HIS* 4.5 17.0 - - - +
505K ALA* 3.8 25.4 - - - +
507K GLY* 3.8 29.6 - - - +
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Residues in contact with GLY 507 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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506K LEU* 3.8 26.0 - - - +
508K LEU* 3.7 30.1 - - - +
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Residues in contact with LEU 508 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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507K GLY* 3.7 29.4 - - - +
509K ARG* 3.7 27.1 - - - +
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Residues in contact with ARG 509 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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508K LEU* 3.7 29.8 - - - +
510K ARG* 3.8 29.8 - - - +
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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