Contacts of the strand formed by residues 249 - 255 (chain A) in PDB entry 5DQE
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 249 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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236A PHE* 3.1 6.0 - - - -
237A VAL* 3.0 43.9 + - + +
248A ARG* 1.3 73.2 - - - +
250A LEU* 1.3 70.4 + - - +
251A PHE* 3.6 26.4 - + - -
305A ASP* 2.8 41.8 + - - -
307A ASN 3.7 20.3 + - - -
308A TRP* 3.7 24.5 - - + +
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Residues in contact with LEU 250 (chain A).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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234A SER* 4.1 20.9 - - - +
235A ALA 3.6 2.9 - - - +
236A PHE* 3.8 21.3 - - + -
248A ARG* 4.1 17.7 + - + +
249A HIS* 1.3 88.7 + - - +
251A PHE* 1.3 65.1 + - - +
252A VAL 4.3 5.4 - - - +
253A HIS* 3.6 37.0 - - + +
305A ASP* 4.1 7.1 - - - +
437A ALA* 5.0 2.8 - - - +
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Residues in contact with PHE 251 (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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235A ALA* 2.8 30.6 + - + +
236A PHE* 3.7 21.5 - - - -
237A VAL* 3.6 22.2 - - + -
249A HIS* 3.6 6.7 - + - -
250A LEU* 1.3 73.5 - - - +
252A VAL* 1.3 75.4 + - + +
304A ALA* 3.3 6.9 - - + -
305A ASP 3.1 39.3 + - - +
306A LEU* 3.6 14.8 - - + -
308A TRP* 3.3 37.9 - + - -
327A TYR* 4.3 5.8 - + - -
379A MET* 4.5 4.3 - - + -
387A LEU* 3.8 28.0 - - + -
437A ALA* 3.7 5.5 - - - +
501A 5E4 6.3 0.4 - - + -
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Residues in contact with VAL 252 (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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233A PHE* 3.9 19.1 - - + -
234A SER* 3.3 3.0 - - - -
235A ALA* 3.1 46.9 + - + +
250A LEU* 4.3 2.9 - - - +
251A PHE* 1.3 90.7 + - + +
253A HIS* 1.3 64.6 + - - +
302A PHE* 3.6 48.0 - - + -
303A TRP 5.1 0.9 - - - +
304A ALA* 3.9 15.0 - - + -
428A PHE* 4.5 5.8 - - + -
437A ALA* 4.6 6.3 - - + -
501A 5E4 4.3 6.7 - - + -
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Residues in contact with HIS 253 (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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232A GLU* 2.9 28.2 + - + +
233A PHE 3.2 18.4 - - - -
234A SER* 3.8 13.0 - - - -
250A LEU* 3.6 31.4 - - + +
252A VAL* 1.3 78.0 - - - +
254A ILE* 1.3 68.8 + - - +
255A SER* 3.9 13.2 - - - -
302A PHE* 4.4 2.7 - - - -
437A ALA* 5.2 6.4 - - + +
439A HIS* 3.4 22.7 + - - -
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Residues in contact with ILE 254 (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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223A LEU* 4.7 8.7 - - + -
230A LEU* 4.2 22.2 - - + -
232A GLU* 3.1 7.6 - - - +
233A PHE* 2.7 49.6 + - + +
253A HIS* 1.3 79.6 - - - +
255A SER* 1.3 63.7 + - - +
256A GLN* 3.9 28.0 - - + +
300A VAL* 4.3 13.7 - - + -
302A PHE* 3.7 33.4 - - + -
426A TYR* 4.8 2.9 - - + -
439A HIS* 4.0 26.7 - - + +
441A ILE* 4.6 3.4 - - + -
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Residues in contact with SER 255 (chain A).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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231A VAL 3.7 3.7 + - - -
232A GLU* 3.5 24.6 + - - +
253A HIS* 3.9 12.9 + - - -
254A ILE* 1.3 76.7 - - - +
256A GLN* 1.3 69.7 + - - +
439A HIS* 5.1 2.4 + - - -
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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