Contacts of the strand formed by residues 167 - 171 (chain A) in PDB entry 2AGA
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 167 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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98A LEU* 2.7 18.3 - - - +
99A PHE* 2.6 31.9 + - + +
100A ASN* 3.1 6.9 - - - +
117A PHE* 3.4 36.3 - - + -
118A ILE 3.1 17.0 - - - +
119A CYS* 4.8 0.2 - - - -
157A LEU* 3.3 22.2 - - + +
160A LEU* 3.0 36.6 - - + -
161A GLN* 3.2 37.7 - - + +
166A SER* 1.3 75.5 - - - +
168A PHE* 1.3 56.9 + - - +
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Residues in contact with PHE 168 (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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69A GLN* 3.2 13.5 - - - -
70A PRO* 3.7 17.3 - - + -
82A ILE* 2.7 43.7 - - + -
96A LEU* 3.3 22.2 - - + -
97A ILE 3.2 4.7 - - - +
98A LEU* 2.9 28.0 - - + -
99A PHE* 3.7 2.9 - - - +
117A PHE* 3.6 5.6 - - - -
118A ILE* 2.8 56.4 + - + +
119A CYS 4.2 1.6 - - - -
120A ASN* 3.7 32.5 - - + -
166A SER* 3.8 11.9 - - - -
167A ILE* 1.3 74.1 - - - +
169A VAL* 1.3 62.0 + - - +
170A VAL 3.6 0.7 + - - -
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Residues in contact with VAL 169 (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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96A LEU* 3.5 1.3 - - - -
97A ILE* 2.4 60.4 + - + +
98A LEU 4.5 0.9 - - - +
99A PHE* 3.6 18.8 - - + +
109A ILE* 4.8 8.7 - - + -
110A ASP 4.9 0.4 - - - +
114A GLU* 3.3 28.5 - - + +
117A PHE* 2.9 35.4 - - + -
168A PHE* 1.3 71.3 - - - +
170A VAL* 1.3 59.7 + - - +
171A LYS* 3.5 16.0 + - + -
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Residues in contact with VAL 170 (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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27A LEU* 5.1 0.9 - - + -
89A LEU* 3.0 35.7 - - + -
94A LEU* 3.3 15.0 - - + -
95A GLU 3.7 4.0 - - - +
96A LEU* 3.9 5.6 - - + -
114A GLU* 3.3 18.7 - - - +
115A ARG* 4.7 2.3 + - - +
116A SER* 2.9 51.8 + - - +
118A ILE* 3.5 33.0 - - + -
168A PHE 4.0 0.2 - - - +
169A VAL* 1.3 70.7 - - - +
171A LYS* 1.3 60.9 + - - +
172A GLY 4.4 0.2 + - - -
174A LEU* 4.9 1.3 - - + -
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Residues in contact with LYS 171 (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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94A LEU* 3.4 3.7 - - - +
95A GLU* 2.5 81.1 + - + +
97A ILE* 3.6 34.2 - - + +
104A TYR* 3.8 32.1 + - - -
109A ILE* 5.2 6.1 - - - +
114A GLU* 3.9 15.9 - - - +
169A VAL* 3.9 9.2 - - - +
170A VAL* 1.3 75.9 - - - +
172A GLY* 1.3 54.2 + - - +
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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