Contacts of the helix formed by residues 130 - 138 (chain F) in PDB entry 4PJE
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 SER 130 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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119E TYR* 3.7 23.1 - - - +
120E GLN 3.6 25.3 + - - -
121E LEU* 4.1 7.6 - - - +
128F GLU 3.6 1.4 + - - -
129F PRO* 1.3 72.9 - - - +
131F GLU* 1.4 61.6 + - - +
132F ALA* 3.1 21.7 + - - +
133F GLU* 3.2 25.1 + - - +
134F ILE* 3.2 15.6 + - - +
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Residues in contact with GLU 131 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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129F PRO 3.6 3.0 + - - -
130F SER* 1.4 71.5 + - - +
132F ALA* 1.3 61.5 + - - +
134F ILE* 3.4 13.6 + - + +
135F SER* 3.1 25.2 + - - -
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Residues in contact with ALA 132 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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119E TYR* 3.8 4.0 - - + -
196E PHE* 4.7 3.7 - - + -
198E PRO* 3.7 36.1 - - + -
130F SER* 3.1 9.7 + - - +
131F GLU* 1.3 79.6 - - - +
133F GLU* 1.4 56.6 + - - +
135F SER* 3.3 8.0 + - - -
136F HIS* 3.0 31.5 + - - +
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Residues in contact with GLU 133 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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119E TYR* 3.5 43.0 - - + -
121E LEU* 5.5 0.9 - - - +
133E LEU* 4.6 4.7 - - - +
129F PRO* 4.4 0.2 - - - +
130F SER* 3.2 22.6 + - - +
132F ALA* 1.4 72.7 - - - +
134F ILE* 1.3 56.2 + - - +
137F THR* 2.7 49.4 + - - +
139F LYS 3.6 7.8 - - - +
140F ALA* 3.7 2.1 - - - -
141F THR* 2.6 52.6 + - - +
194F ARG* 2.9 23.5 + - - +
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Residues in contact with ILE 134 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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129F PRO* 4.0 9.9 - - + +
130F SER 3.2 17.9 + - - +
131F GLU* 3.4 12.8 + - - +
133F GLU* 1.3 75.2 - - - +
135F SER* 1.3 59.8 + - - +
138F GLN* 2.8 30.9 + - - +
139F LYS 3.4 17.3 - - - +
140F ALA* 3.9 11.9 - - + -
197F ALA* 3.8 12.5 - - + +
200F TRP* 3.6 33.0 - - + +
201F GLN* 3.6 27.1 - - + +
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Residues in contact with SER 135 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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131F GLU 3.1 13.6 + - - -
132F ALA* 3.3 12.8 + - - -
134F ILE* 1.3 78.4 - - - +
136F HIS* 1.3 62.6 + - - +
138F GLN* 4.8 4.5 + - - +
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Residues in contact with HIS 136 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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115E ASP* 2.7 48.2 + - - +
117E ALA* 5.1 0.2 - - + -
119E TYR* 3.4 24.2 - - - +
196E PHE* 4.0 36.7 - + + +
132F ALA 3.0 19.7 + - - +
135F SER* 1.3 79.3 + - - +
137F THR* 1.3 59.0 + - + +
138F GLN* 5.8 0.4 - - - -
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Residues in contact with THR 137 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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115E ASP* 4.0 9.0 - - + +
119E TYR* 3.8 18.8 - - - +
136E ASP* 3.7 21.8 - - - +
133F GLU* 2.7 30.0 + - + +
136F HIS* 1.3 84.4 - - + +
138F GLN* 1.3 69.7 + - - +
139F LYS* 3.2 41.6 + - - +
194F ARG* 3.8 7.0 + - - +
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Residues in contact with GLN 138 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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134F ILE 2.8 19.4 + - - +
135F SER* 5.3 4.7 - - - +
136F HIS 3.9 0.2 - - - -
137F THR* 1.3 79.4 - - - +
139F LYS* 1.3 61.4 + - + +
196F SER* 3.8 5.5 - - - -
197F ALA* 2.9 31.5 + - + +
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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