Contacts of the strand formed by residues 148 - 152 (chain A) in PDB entry 1BRW
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 148 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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96A GLY* 3.5 35.4 - - - +
97A PRO* 3.6 15.0 - - + -
100A ALA* 3.9 11.2 - - + -
106A VAL* 3.4 20.2 - - + -
142A LEU* 3.6 15.4 - - - +
143A VAL* 4.0 5.0 - - - +
146A ASN* 4.2 19.5 + - + +
147A GLY* 1.3 83.1 - - - +
149A ALA* 1.3 72.5 + - - +
150A ILE* 4.2 7.6 - - + -
308A ALA* 5.2 4.5 - - + +
311A THR* 6.4 0.2 - - + -
312A PHE* 3.9 36.9 - - + -
316A GLN* 5.1 0.9 + - - -
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Residues in contact with ALA 149 (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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106A VAL 3.1 4.7 + - - +
108A LYS* 3.0 28.9 + - - +
139A PHE* 3.3 31.7 - - + -
142A LEU* 3.8 19.7 - - + -
143A VAL* 3.7 9.0 - - + -
148A ILE* 1.3 81.1 - - - +
150A ILE* 1.3 63.9 + - - +
151A ILE* 3.9 1.6 - - + -
312A PHE* 4.7 0.2 - - - -
316A GLN* 4.0 8.5 - - - +
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Residues in contact with ILE 150 (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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92A THR* 3.8 30.1 - - + +
93A LEU* 5.6 2.2 - - + -
96A GLY* 4.7 5.4 - - - -
97A PRO* 4.9 1.6 - - + -
106A VAL* 5.2 2.0 - - + -
108A LYS* 3.2 17.7 - - + +
110A SER* 3.9 23.3 - - - +
120A THR* 4.4 4.9 - - + -
121A ILE* 5.1 1.1 - - + +
124A LEU* 3.6 23.5 - - + +
130A PHE* 4.2 9.5 - - - -
132A VAL* 5.1 0.7 - - - -
148A ILE* 4.2 17.3 - - + -
149A ALA* 1.3 75.9 - - - +
151A ILE* 1.3 59.4 + - - +
312A PHE* 3.7 30.0 - - + -
316A GLN* 3.2 23.3 + - - +
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Residues in contact with ILE 151 (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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108A LYS 3.0 5.9 + - - +
109A MET* 3.2 29.1 - - + -
110A SER 2.9 25.1 + - - -
121A ILE* 3.9 8.0 - - - +
132A VAL* 3.7 9.9 - - - +
134A ILE* 3.4 53.4 - - + +
135A SER 5.5 0.7 - - - -
139A PHE* 4.0 34.8 - - + -
142A LEU* 4.9 0.7 - - + -
149A ALA* 4.6 1.8 - - + -
150A ILE* 1.3 83.1 - - - +
152A GLY* 1.3 71.8 + - - +
154A THR* 4.1 0.2 - - - +
316A GLN* 3.7 7.9 - - - +
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Residues in contact with GLY 152 (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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109A MET* 3.6 7.6 - - - +
110A SER 3.9 1.6 - - - -
121A ILE* 3.9 17.1 - - - +
132A VAL* 2.7 25.8 + - - +
133A GLU* 5.6 0.6 - - - -
151A ILE* 1.3 78.0 - - - +
153A GLN* 1.3 60.5 + - - -
154A THR* 2.8 19.6 + - - -
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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