Contacts of the helix formed by residues 494 - 499 (chain Z) in PDB entry 5L4K
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 ARG 494 (chain Z).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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458Z GLU* 4.2 24.5 - - - +
461Z PRO* 5.8 3.4 - - - +
463Z LEU* 5.1 4.6 - - - +
489Z TYR* 4.2 19.5 + - + +
492Z SER 4.0 3.4 + - - -
493Z ASN* 1.3 79.8 + - - +
495Z GLU* 1.3 67.8 + - - +
496Z ASP* 3.3 32.1 + - - +
497Z VAL* 3.0 50.3 - - + +
498Z LEU* 3.5 5.5 + - - +
525Z ILE* 5.5 0.3 - - - +
529Z SER* 4.5 0.9 + - - -
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Residues in contact with GLU 495 (chain Z).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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493Z ASN* 3.3 21.0 + - - +
494Z ARG* 1.3 75.0 - - - +
496Z ASP* 1.3 67.9 + - - +
497Z VAL 3.2 1.6 - - - -
498Z LEU* 3.2 32.6 - - + +
499Z THR* 2.9 30.7 + - + +
526Z ALA* 5.7 1.6 - - - +
529Z SER* 3.7 17.9 + - - -
530Z CYS* 5.4 3.8 - - + -
531Z ASN* 4.8 5.1 + - - -
532Z GLY 4.8 10.9 + - - -
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Residues in contact with ASP 496 (chain Z).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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494Z ARG* 3.3 37.6 + - - +
495Z GLU* 1.3 76.6 - - - +
497Z VAL* 1.3 57.6 + - + +
499Z THR* 3.1 10.2 + - - -
500Z LEU* 2.9 34.8 + - + +
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Residues in contact with VAL 497 (chain Z).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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463Z LEU* 3.6 29.8 - - + -
485Z LEU* 3.7 10.8 - - + +
489Z TYR* 3.2 44.6 - - + -
494Z ARG* 3.0 49.8 - - + +
496Z ASP* 1.3 74.2 - - + +
498Z LEU* 1.3 67.2 + - - +
499Z THR 3.2 0.2 - - - -
500Z LEU* 3.4 24.3 + - + +
501Z LEU 4.1 1.0 + - - -
525Z ILE* 3.6 9.5 - - - +
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Residues in contact with LEU 498 (chain Z).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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494Z ARG 3.5 3.8 + - - +
495Z GLU* 3.2 42.0 - - + +
497Z VAL* 1.3 85.4 - - - +
499Z THR* 1.3 64.3 + - + +
500Z LEU 3.5 2.3 + - - -
501Z LEU* 3.8 2.6 + - - +
502Z LEU* 3.4 39.3 + - + +
522Z CYS* 3.8 10.6 - - - +
525Z ILE* 3.3 40.1 - - + +
526Z ALA* 4.0 17.0 - - + -
534Z VAL* 4.2 23.8 - - + -
565Z ASN* 4.2 3.4 - - - +
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Residues in contact with THR 499 (chain Z).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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495Z GLU* 2.9 22.4 + - + +
496Z ASP* 3.1 8.6 + - - -
498Z LEU* 1.3 85.6 - - + +
500Z LEU* 1.3 63.3 + - - +
501Z LEU 3.4 0.4 - - - -
502Z LEU* 4.0 21.8 - - + -
503Z PRO* 3.3 17.9 - - - +
534Z VAL* 4.4 9.6 - - + -
536Z SER* 5.4 3.8 - - - +
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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