Contacts of the strand formed by residues 258 - 261 (chain A) in PDB entry 7JDW
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 PHE 258 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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71A GLU* 5.1 0.5 - - - +
169A ARG* 5.9 2.4 - - - -
173A ILE* 3.8 20.8 - - + +
253A PHE* 3.4 33.0 - + + -
254A ASP 3.6 14.8 - - - -
255A ALA* 3.0 19.1 + - - +
256A ALA* 4.1 6.1 - - - +
257A ASP* 1.3 83.2 - - - +
259A ILE* 1.3 63.6 + - - +
265A ILE* 4.1 15.3 - - + -
266A PHE 3.2 4.3 - - - +
267A ALA* 3.5 25.6 - - + -
273A THR* 4.3 6.3 - - + -
278A ILE* 4.2 18.8 - - + -
281A MET* 3.7 44.2 - - + -
291A VAL* 4.3 7.9 - - + -
304A ILE* 4.3 1.4 - - - +
406A HIS* 5.6 3.3 - - - -
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Residues in contact with ILE 259 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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71A GLU* 3.7 20.4 - - + +
258A PHE* 1.3 75.0 - - - +
260A ARG* 1.3 66.3 + - - +
265A ILE* 3.5 2.9 - - - -
266A PHE* 2.9 55.2 + - + +
304A ILE* 3.9 19.5 - - + -
305A ASP* 4.5 8.3 - - + -
308A PHE* 3.9 21.1 - - + +
309A ASN* 3.7 26.2 - - - +
310A ILE* 4.0 25.1 - - + +
406A HIS* 4.0 15.5 - - + -
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Residues in contact with ARG 260 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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68A SER* 3.0 30.9 + - - -
69A TYR 3.9 13.0 - - - +
70A ASN* 3.2 19.9 + - - +
71A GLU* 3.0 55.0 + - - +
72A TRP* 3.7 4.3 - - - -
169A ARG* 3.8 4.4 - - - +
173A ILE* 3.9 28.8 - - + +
174A VAL* 3.1 32.3 + - - +
175A VAL* 4.5 6.3 - - + +
259A ILE* 1.3 75.5 - - - +
261A ALA* 1.3 61.4 + - - +
262A GLY 3.9 0.7 - - - +
264A ASP 4.2 2.2 - - - -
265A ILE* 4.3 18.4 - - + -
310A ILE* 4.5 3.2 - - - +
411A ASP* 2.7 35.4 + - - -
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Residues in contact with ALA 261 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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72A TRP* 3.7 20.0 - - + -
260A ARG* 1.3 74.6 - - - +
262A GLY* 1.3 64.6 + - - +
263A ARG 3.3 2.8 + - - -
264A ASP* 3.0 26.2 + - + +
266A PHE* 4.1 10.3 - - + -
310A ILE* 4.0 17.7 - - + -
335A TRP* 4.2 12.3 - - + -
419A GLN 4.1 0.2 - - - +
421A TYR* 3.4 20.1 + - + +
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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