Contacts of the strand formed by residues 156 - 161 (chain E) in PDB entry 1C9T
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 LYS 156 (chain E).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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16E ILE* 3.8 22.0 - - + +
19E GLY 5.0 3.3 + - - +
20E TYR* 3.4 7.0 - - - +
21E THR* 2.9 37.9 + - - +
22E CYS* 3.1 4.9 - - - -
139E SER* 3.2 8.1 - - - -
140E GLY 3.1 35.2 + - - +
144E THR* 4.3 15.7 - - + -
152E PRO* 3.8 34.5 - - + -
154E VAL* 3.8 21.5 - - - +
155E LEU* 1.3 72.3 - - - +
157E CYS* 1.3 60.0 + - - +
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Residues in contact with CYS 157 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
16E ILE* 4.4 1.1 - - - -
19E GLY* 3.3 6.1 - - - -
20E TYR* 2.7 66.2 + - + +
22E CYS* 2.0 46.2 - - - -
26E THR* 4.9 2.0 - - - -
27E VAL* 3.6 17.5 - - - -
137E LEU* 3.5 15.3 - - + -
138E ILE 3.5 3.1 - - - -
139E SER* 4.1 4.5 - - - -
156E LYS* 1.3 75.2 - - - +
158E LEU* 1.3 61.3 + - - +
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Residues in contact with LEU 158 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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16E ILE* 3.6 18.4 - - + -
17E VAL 4.1 0.7 - - - +
18E GLY 3.3 22.2 - - - +
19E GLY* 4.3 2.5 - - - -
20E TYR* 4.3 3.4 - - + -
136E CYS 3.6 0.3 - - - +
137E LEU* 3.3 6.0 - - - +
138E ILE* 2.8 56.2 + - + +
157E CYS* 1.3 76.7 - - - +
159E LYS* 1.3 79.8 + - - +
160E ALA* 3.8 6.4 + - + -
184E GLY* 6.2 0.7 - - - -
188E LYS* 3.8 21.1 - - + +
189E ASP* 3.4 39.5 - - - +
190E SER 4.6 0.9 - - - +
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Residues in contact with LYS 159 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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20E TYR* 3.2 36.1 + - + -
135E GLN* 4.0 24.4 + - - +
136E CYS 3.2 9.2 - - - +
137E LEU* 3.9 21.8 - - + -
158E LEU* 1.3 82.8 - - - +
160E ALA* 1.3 56.8 + - - +
184E TYR* 2.7 25.0 + - - -
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Residues in contact with ALA 160 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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135E GLN* 4.5 5.2 - - - +
136E CYS* 2.7 40.0 + - - +
138E ILE* 4.1 22.2 - - + +
158E LEU* 3.8 6.7 + - + -
159E LYS* 1.3 76.5 - - - +
161E PRO* 1.3 67.5 - - + +
183E ALA* 4.8 1.2 - - + +
184E TYR* 3.6 30.1 - - + +
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Residues in contact with PRO 161 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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133E GLY* 4.2 14.6 - - - +
134E THR 3.2 11.9 - - - +
135E GLN* 4.1 7.2 - - + -
160E ALA* 1.3 85.6 - - - +
162E ILE* 1.3 63.8 + - - +
163E LEU* 3.6 8.0 + - + -
183E ALA* 3.1 7.9 - - - +
184E GLY* 3.1 63.3 + - + +
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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