Contacts of the helix formed by residues 133 - 137 (chain B) in PDB entry 4L57
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 ASP 133 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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131B THR* 2.8 22.8 + - - +
132B ARG* 1.3 78.3 - - - +
134B LYS* 1.3 60.1 + - - +
135B THR* 2.7 30.1 + - - +
136B VAL* 3.4 26.8 - - + +
137B VAL* 4.2 1.2 - - - +
150B ARG 5.0 2.5 - - - -
151B GLY* 3.5 9.6 - - - -
152B GLN* 2.8 39.6 + - - +
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Residues in contact with LYS 134 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
8B LEU* 4.7 0.6 - - + +
10B ASP* 2.8 28.7 + - - -
98B CYS* 2.9 42.5 + - - +
99B THR* 4.1 0.7 - - - +
100B SER* 3.4 25.4 - - - +
131B THR* 4.1 8.7 - - + -
132B ARG 4.1 0.4 - - - -
133B ASP* 1.3 70.2 + - - +
135B THR* 1.3 63.2 + - - +
136B VAL 3.2 2.7 - - - -
137B VAL* 3.2 15.8 + - - +
142B LEU* 4.4 11.9 - - + +
144B ASP* 2.9 20.8 + - - +
149B VAL* 4.0 20.3 - - + +
150B ARG 5.0 2.4 + - - -
158B TRP* 3.0 25.0 + - + +
202B PO4 2.9 11.3 + - - -
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Residues in contact with THR 135 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
133B ASP* 2.7 16.5 + - - +
134B LYS* 1.3 78.1 - - - +
136B VAL* 1.3 59.3 + - - +
137B VAL 3.3 5.3 + - - +
149B VAL* 4.0 2.5 - - + +
150B ARG* 3.5 14.6 - - - +
151B GLY* 3.4 24.2 - - - +
152B GLN 3.2 2.9 + - - -
153B GLU* 3.0 50.4 + - - +
156B PRO* 3.9 25.7 - - + +
157B SER* 5.0 1.7 + - - -
158B TRP* 3.7 13.9 - - + -
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Residues in contact with VAL 136 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
131B THR* 4.7 3.6 - - - +
133B ASP* 3.4 37.7 - - + +
135B THR* 1.3 81.8 - - - +
137B VAL* 1.3 63.3 + - + +
138B LEU* 3.9 2.1 + - - +
152B GLN* 4.3 19.1 - - + +
153B GLU* 4.5 11.4 - - + +
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Residues in contact with VAL 137 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
6B ARG* 6.0 0.4 - - - -
8B LEU* 3.7 26.9 - - + -
98B CYS* 4.2 5.4 - - - -
129B ILE* 3.8 42.8 - - + -
131B THR* 4.2 17.3 - - + -
133B ASP 4.2 3.6 - - - +
134B LYS 3.2 12.0 + - - +
135B THR 4.2 3.2 - - - +
136B VAL* 1.3 83.6 - - + +
138B LEU* 1.3 61.6 + - - +
157B SER* 3.7 2.1 + - - -
158B TRP* 3.2 26.2 + - - -
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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