Contacts of the helix formed by residues 434 - 439 (chain F) in PDB entry 3ZXR
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 HIS 434 (chain F).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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430F LEU* 2.7 39.3 + - + +
431F GLU* 3.4 19.6 + - + -
432F ALA 5.1 1.6 - - - -
433F ASP* 1.3 75.1 + - - +
435F GLU* 1.3 84.6 + - - +
436F TYR* 3.2 11.7 - - - -
437F LEU* 3.0 19.7 + - + +
438F THR* 3.5 13.3 + - + +
445F ASN* 3.5 16.5 + - - -
448F ILE* 3.8 33.3 - - + +
452F ILE* 5.7 0.4 - - + -
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Residues in contact with GLU 435 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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432F ALA 5.7 0.7 - - - +
433F ASP* 3.9 11.3 + - - +
434F HIS* 1.3 100.2 + - - +
436F TYR* 1.3 62.1 + - - +
438F THR* 2.8 32.3 + - - +
439F GLU* 3.3 17.2 + - - +
445F ASN* 5.7 0.2 - - - +
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Residues in contact with TYR 436 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
312F HIS* 3.5 39.7 - + + +
315F SER* 2.7 30.9 + - - -
316F LEU* 3.2 21.5 + - + -
382F ALA 4.3 1.3 - - - -
385F MET* 3.4 29.6 - - - +
386F ALA* 3.7 40.2 - - + -
389F ASP* 3.9 19.2 - - + +
433F ASP* 4.1 14.1 + - - -
434F HIS* 4.1 6.1 - - - -
435F GLU* 1.3 77.8 - - - +
437F LEU* 1.3 92.6 + - + +
439F GLU* 3.7 14.2 - - - +
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Residues in contact with LEU 437 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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319F PHE* 4.0 13.9 - - + -
382F ALA* 3.8 31.6 - - + -
385F MET* 4.0 8.1 - - + +
430F LEU* 3.6 30.7 - - + -
434F HIS* 3.0 11.5 + - + +
436F TYR* 1.3 114.3 - - + +
438F THR* 1.3 61.7 + - - +
439F GLU 3.3 1.6 + - - +
442F VAL* 3.9 6.4 - - - +
443F PHE* 3.0 52.8 + - + +
448F ILE* 4.3 5.4 - - + -
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Residues in contact with THR 438 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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434F HIS* 3.9 13.9 - - + +
435F GLU* 2.8 35.3 + - - +
437F LEU* 1.3 73.6 - - - +
439F GLU* 1.3 68.0 + - - +
440F GLY 3.3 0.3 + - - -
441F GLY* 2.8 17.5 + - - -
443F PHE 3.3 17.9 - - - +
444F THR* 4.9 0.4 - - - -
445F ASN* 3.9 22.4 - - - +
448F ILE* 3.9 18.2 - - + -
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Residues in contact with GLU 439 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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118F TYR* 3.5 25.7 + - + +
385F MET* 3.3 24.8 - - + +
389F ASP* 4.9 10.2 - - + +
392F LYS* 5.9 3.4 - - - +
435F GLU* 3.3 19.1 + - - +
436F TYR* 3.7 14.0 - - - +
437F LEU 3.3 0.6 - - - -
438F THR* 1.3 76.3 - - - +
440F GLY* 1.3 60.6 + - - +
441F GLY 3.0 5.0 + - - -
442F VAL* 3.2 11.3 + - - +
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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
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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