Contacts of the strand formed by residues 224 - 230 (chain A) in PDB entry 4UB2
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 ILE 224 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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215A VAL* 4.0 20.0 - - + +
218A LEU* 2.8 46.3 + - + +
219A GLN* 3.8 37.9 - - + +
222A HIS* 4.7 2.1 - - - -
223A PHE* 1.3 88.2 + - + +
225A THR* 1.3 61.8 + - - +
226A ASP 4.1 8.1 - - - +
235A PHE* 4.0 29.4 - - + -
238A VAL 3.4 11.9 - - - +
239A CYS* 4.5 2.7 - - + -
255A ILE* 4.8 5.2 - - + -
257A ILE* 4.1 7.0 - - + -
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Residues in contact with THR 225 (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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142A TYR* 4.6 0.4 - - - -
219A GLN* 6.1 1.3 - - - -
222A HIS* 4.7 7.4 - - - +
223A PHE 4.1 11.0 - - - +
224A ILE* 1.3 78.3 - - - +
226A ASP* 1.3 78.9 + - - +
238A VAL* 2.9 20.4 + - - +
240A GLN* 4.3 15.0 - - + +
252A HIS* 3.4 31.7 - - + +
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Residues in contact with ASP 226 (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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134A HIS* 5.6 2.3 - - - -
138A ILE* 3.8 23.4 - - + +
141A LYS* 4.2 10.4 + - - +
142A TYR* 2.4 36.6 + - - -
219A GLN* 5.9 0.7 - - - -
224A ILE* 3.8 3.2 - - - +
225A THR* 1.3 94.1 + - - +
227A THR* 1.3 62.9 + - - +
228A LEU 4.1 0.2 - - - -
235A PHE* 4.1 4.0 - - - -
237A GLY* 3.3 2.4 - - - -
238A VAL* 2.8 39.6 + - + +
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Residues in contact with THR 227 (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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134A HIS* 3.1 27.9 + - - -
138A ILE* 3.4 5.3 - - - +
219A GLN* 4.0 17.0 + - - -
224A ILE* 5.0 0.2 - - - +
226A ASP* 1.3 73.7 - - - +
228A LEU* 1.3 63.2 + - - +
229A SER* 3.5 24.2 - - - +
230A LYS* 3.7 13.0 - - + +
235A PHE* 3.6 29.9 - - + -
236A MET 3.9 1.8 - - - -
237A GLY* 4.3 0.2 - - - -
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Residues in contact with LEU 228 (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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104A SER* 4.8 3.1 - - - +
134A HIS* 4.6 6.4 - - - -
135A HIS* 3.2 72.8 + - + +
138A ILE* 4.5 19.3 - - + -
139A GLY 5.0 1.3 - - - +
146A PHE* 5.4 1.8 - - + -
227A THR* 1.3 75.4 - - - +
229A SER* 1.3 63.2 + - - +
236A MET* 2.7 18.9 + - + +
237A GLY* 3.8 9.9 - - - +
238A VAL* 5.0 1.3 - - + -
254A ARG* 3.4 52.7 - - - +
11T A 4.4 8.1 + - - +
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Residues in contact with SER 229 (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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135A HIS* 5.9 1.8 - - - -
227A THR* 3.5 5.9 - - - +
228A LEU* 1.3 81.4 - - - +
230A LYS* 1.3 63.5 + - - +
234A LYS* 4.5 1.8 + - - +
235A PHE* 3.6 0.7 - - - -
236A MET* 2.8 57.6 + - - +
10T C 3.5 24.3 - - - -
11T A 3.6 16.4 - - - -
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Residues in contact with LYS 230 (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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211A LEU* 5.1 2.2 - - + -
212A HIS* 3.2 41.4 + - - +
215A VAL* 3.5 29.8 - - + -
219A GLN* 6.2 0.4 - - - +
227A THR* 3.7 16.1 - - + +
229A SER* 1.3 77.3 - - - +
231A GLY* 1.3 71.5 + - - +
234A LYS 3.6 4.7 - - - -
235A PHE* 3.9 17.5 - - + -
10T C 3.4 7.1 + - - +
11T A 3.2 21.3 + - - +
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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