Contacts of the strand formed by residues 251 - 255 (chain f) in PDB entry 4B2Q
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 VAL 251 (chain f).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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178f HIS* 5.2 0.2 - - - -
181f PHE* 3.1 22.9 - - + +
182f SER 4.2 1.1 - - - +
183f VAL* 4.2 17.7 - - + -
240f ALA* 4.4 15.5 - - + +
243f PHE* 3.6 29.6 - - + -
244f ARG 4.7 0.7 - - - +
249f GLN 3.1 18.4 - - - +
250f ASP* 1.3 76.9 - - - +
252f LEU* 1.3 76.0 + - - +
253f LEU 3.9 0.4 - - - +
303f SER 3.1 7.5 + - - +
304f VAL* 3.2 16.4 - - + +
305f THR* 2.9 25.5 + - - -
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Residues in contact with LEU 252 (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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134f LEU* 6.0 0.9 - - + -
149f ARG* 5.7 1.1 - - - +
174f ILE* 3.7 24.0 - - + -
175f ALA* 4.0 13.5 - - - -
178f HIS* 3.4 48.2 - - + +
181f PHE 2.9 9.5 + - - -
182f SER* 3.3 10.8 - - - +
183f VAL 2.9 25.3 + - - -
251f VAL* 1.3 73.4 - - - +
253f LEU* 1.3 61.2 + - - +
254f PHE* 3.7 32.3 + - + -
305f THR* 3.3 32.5 - - + +
307f VAL* 6.6 0.2 - - + -
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Residues in contact with LEU 253 (chain f).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
183f VAL* 3.4 37.2 - - + +
185f THR* 4.9 2.2 - - - +
236f GLY 4.3 7.4 - - - +
237f LEU* 3.7 29.8 - - + -
240f ALA* 4.1 13.7 - - + -
251f VAL 3.8 1.2 + - - -
252f LEU* 1.3 70.3 - - - +
254f PHE* 1.3 61.3 + - - +
255f ILE* 3.8 26.5 + - + +
296f ILE* 3.8 21.3 - - + -
304f VAL* 4.1 17.5 - - + -
305f THR 2.8 10.1 + - - +
306f SER* 3.2 5.6 - - - -
307f VAL 2.9 25.6 + - - -
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Residues in contact with PHE 254 (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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167f ILE* 4.0 13.5 - - + -
170f LEU* 4.9 9.0 - - + -
171f ILE* 3.7 43.7 - - + -
174f ILE* 5.6 2.7 - - + -
175f ALA* 4.7 1.3 - - + -
182f SER* 4.4 11.9 - - - -
183f VAL 2.9 14.4 + - - +
184f PHE* 3.5 26.7 - + + -
185f THR* 3.0 26.7 + - - +
215f VAL* 5.8 1.3 - - + -
252f LEU* 3.8 46.4 - - + -
253f LEU* 1.3 72.6 - - - +
255f ILE* 1.3 62.2 + - - +
305f THR 5.6 0.2 - - - -
307f VAL* 3.7 36.1 - - + +
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Residues in contact with ILE 255 (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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167f ILE* 4.2 1.7 - - - +
185f THR* 3.7 15.7 - - + +
187f VAL* 4.5 10.5 - - + -
233f ALA* 5.6 10.1 - - + +
237f LEU* 6.1 0.9 - - + -
253f LEU* 3.8 25.1 + - + +
254f PHE* 1.3 78.8 - - - +
256f ASP* 1.3 67.5 + - - +
257f ASN 4.5 1.8 - - - -
258f ILE* 4.2 31.9 - - + +
296f ILE* 3.8 16.6 - - + -
307f VAL 3.3 11.2 + - - +
308f GLN* 3.5 34.5 - - + +
309f ALA* 3.1 25.5 + - - +
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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