Contacts of the helix formed by residues 406 - 411 (chain D) in PDB entry 4BUR
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 LEU 406 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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137D ILE* 4.2 22.2 - - + -
233D VAL* 3.7 37.0 - - + +
234D VAL* 3.7 23.3 - - - +
235D GLN* 4.1 9.0 - - - +
236D LEU* 3.9 18.1 - - + +
258D ILE* 4.9 6.7 - - + -
260D THR* 4.6 9.4 - - + -
404D VAL 3.2 1.0 - - - -
405D GLU* 1.3 78.8 - - + +
407D ALA* 1.3 63.2 + - - +
408D LYS 3.2 0.6 + - - -
409D THR* 3.6 5.6 + - - +
410D GLY* 3.1 21.8 + - - -
421D PHE* 4.5 12.1 - - + -
1612D FAD 4.2 17.0 - - - +
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Residues in contact with ALA 407 (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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404D VAL* 3.0 17.4 + - + +
406D LEU* 1.3 79.4 - - - +
408D LYS* 1.3 53.7 + - - +
411D GLY* 2.8 28.9 + - - -
412D LEU* 3.0 32.0 + - - +
414D ILE* 4.1 22.0 - - + -
421D PHE* 3.6 23.4 - - + -
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Residues in contact with LYS 408 (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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404D VAL 4.2 0.4 + - - +
405D GLU* 3.4 32.1 + - - +
406D LEU 3.2 1.0 - - - -
407D ALA* 1.3 81.6 - - - +
409D THR* 1.3 72.5 + - + +
411D GLY* 3.4 8.1 + - - -
414D ILE* 6.5 0.2 - - - -
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Residues in contact with THR 409 (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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234D VAL 4.6 9.6 + - - +
235D GLN* 3.7 27.2 - - + -
236D LEU* 3.0 30.4 + - - +
405D GLU 5.3 2.5 - - - +
406D LEU* 3.6 9.2 + - - -
407D ALA 3.6 0.2 - - - -
408D LYS* 1.3 87.6 - - + +
410D GLY* 1.3 62.0 + - - +
411D GLY* 3.6 0.3 + - - -
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Residues in contact with GLY 410 (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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445B ILE* 5.6 1.2 - - - +
236D LEU* 3.6 27.6 - - - -
238D VAL* 3.5 23.3 + - - +
406D LEU 3.1 12.9 + - - -
407D ALA 4.0 0.4 - - - -
409D THR* 1.3 82.7 + - - +
411D GLY* 1.3 62.9 + - - +
412D LEU* 3.5 3.7 - - - +
430D ARG* 4.5 3.8 + - - -
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Residues in contact with GLY 411 (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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443B TYR* 4.1 7.7 - - - -
445B ILE* 4.1 36.8 - - - +
407D ALA 2.8 15.9 + - - -
408D LYS 3.4 5.8 + - - -
409D THR 3.3 3.0 - - - -
410D GLY* 1.3 76.8 - - - +
412D LEU* 1.3 58.6 + - - -
430D ARG* 4.1 8.1 + - - -
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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