Contacts of the helix formed by residues 284 - 292 (chain E) in PDB entry 3DUF
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 284 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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282E ARG* 3.1 56.4 + - - +
283E SER* 1.3 69.8 - - - +
285E GLU* 1.3 62.1 + - - +
287E GLU* 3.3 26.6 + - + +
288E ASN* 3.0 31.5 + - - +
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Residues in contact with GLU 285 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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283E SER* 3.1 9.1 + - - +
284E LYS* 1.3 76.0 - - - +
286E LEU* 1.3 64.1 + - + +
287E GLU 3.0 7.4 + - - -
288E ASN* 4.8 3.9 - - - +
289E GLU* 3.5 23.0 + - - +
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Residues in contact with LEU 286 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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203E ARG* 6.0 5.2 - - - +
204E PHE* 3.8 34.5 - - + -
266E PHE* 3.5 20.8 - - + -
283E SER* 3.4 26.1 + - - +
285E GLU* 1.3 83.2 - - + +
287E GLU* 1.3 58.9 + - - +
289E GLU* 3.5 26.5 - - - +
290E TRP* 3.0 32.2 - - - +
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Residues in contact with GLU 287 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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266E PHE* 4.9 6.6 - - + -
267E ARG 4.6 2.4 - - - +
268E TYR* 3.1 43.8 - - - +
269E GLY 5.5 0.3 - - - +
282E ARG* 6.0 1.6 - - + -
283E SER 3.3 17.1 + - - +
284E LYS* 3.3 29.4 - - + +
285E GLU 3.0 0.6 - - - -
286E LEU* 1.3 78.4 - - - +
288E ASN* 1.3 61.7 + - - +
289E GLU 3.2 0.7 - - - -
290E TRP* 3.2 4.0 + - - +
291E ALA* 2.7 37.3 + - - +
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Residues in contact with ASN 288 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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284E LYS* 3.0 27.6 + - - +
285E GLU* 4.8 3.4 + - - +
287E GLU* 1.3 76.6 - - - +
289E GLU* 1.3 68.2 + - - +
291E ALA* 3.0 19.5 + - - +
292E LYS* 3.3 33.1 + - - +
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Residues in contact with GLU 289 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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285E GLU* 3.5 18.0 + - - +
286E LEU* 3.5 21.0 - - - +
288E ASN* 1.3 81.4 - - - +
290E TRP* 1.3 87.8 + - + +
292E LYS* 3.8 16.8 + - - +
293E LYS* 4.0 21.6 - - - +
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Residues in contact with TRP 290 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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203E ARG* 3.9 24.8 - - + +
234E ASP* 5.9 1.3 - - - -
236E MET* 4.0 20.3 - - + +
264E LEU* 4.4 12.6 - - + -
265E CYS 3.7 22.0 - - - -
266E PHE* 3.4 44.8 - + + -
268E TYR* 2.5 28.6 + - + -
286E LEU* 3.0 33.7 - - - +
287E GLU 3.2 3.8 + - - +
288E ASN 3.1 0.2 - - - -
289E GLU* 1.3 101.6 + - - +
291E ALA* 1.3 55.9 + - - +
292E LYS 3.0 6.3 - - - -
293E LYS* 3.1 42.9 + - + +
294E ASP 3.6 0.5 + - - -
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Residues in contact with ALA 291 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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268E TYR* 3.8 13.9 - - + -
287E GLU* 2.7 23.0 + - - +
288E ASN* 3.0 15.2 + - - +
290E TRP* 1.3 75.0 - - - +
292E LYS* 1.3 61.2 + - + +
293E LYS 3.3 0.6 + - - -
294E ASP* 3.7 16.3 + - - +
297E VAL* 4.7 4.0 - - - +
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Residues in contact with LYS 292 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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28E GLU* 4.3 26.8 - - - +
288E ASN* 3.4 29.6 + - - +
289E GLU* 3.9 11.6 - - - +
290E TRP 3.0 0.6 - - - -
291E ALA* 1.3 82.1 - - + +
293E LYS* 1.3 58.6 + - + +
294E ASP* 3.4 1.1 + - - -
297E VAL* 5.0 12.0 - - - +
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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