Contacts of the strand formed by residues 118 - 122 (chain A) in PDB entry 1OPL
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 TRP 118 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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91A PHE* 3.9 26.5 - + - -
98A THR* 3.8 23.1 - - + -
112A TYR* 3.5 5.2 - - - -
113A ASN* 3.1 35.6 + - - +
115A ASN* 6.1 0.2 - - - -
117A GLU* 1.3 89.1 + - + +
119A CYS* 1.3 60.6 + - - +
129A TRP* 3.9 14.1 - - + -
130A VAL 3.4 27.4 - - - -
131A PRO* 4.0 10.5 - - + -
132A SER* 3.1 9.1 + - - -
244A VAL* 3.7 32.2 - - + +
245A TYR 5.8 2.0 + - - +
246A GLY 5.8 0.4 - - - -
247A VAL 3.9 28.5 - - - -
248A SER 3.4 11.7 + - - -
249A PRO* 3.5 33.9 - - + -
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Residues in contact with CYS 119 (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 VAL* 3.9 15.9 - - + -
111A GLY 3.2 13.0 - - - +
112A TYR* 3.6 21.3 - - + -
118A TRP* 1.3 76.8 - - - +
120A GLU* 1.3 61.8 + - - +
121A ALA* 3.7 1.5 + - - -
129A TRP* 3.3 7.5 - - - -
130A VAL* 2.9 44.0 + - - +
132A SER* 3.7 9.0 - - - +
135A ILE* 3.6 30.5 - - - -
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Residues in contact with GLU 120 (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 VAL* 3.6 3.3 - - - +
110A LEU* 2.7 51.4 + - + +
111A GLY* 2.8 16.1 + - - +
119A CYS* 1.3 71.5 - - - +
121A ALA* 1.3 57.7 + - - +
127A GLN* 2.9 32.1 + - + +
128A GLY* 3.5 17.4 + - - +
129A TRP* 3.4 30.5 - - + +
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Residues in contact with ALA 121 (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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99A LEU* 3.8 5.1 - - + +
107A LEU* 3.8 29.2 - - + -
108A ARG 3.2 13.5 - - - +
109A VAL* 4.5 7.6 - - + -
110A LEU 4.5 0.4 - - - +
119A CYS* 3.7 1.3 + - - +
120A GLU* 1.3 76.3 - - - +
122A GLN* 1.3 65.0 + - - +
127A GLN* 3.2 5.6 - - - +
128A GLY 2.9 34.0 + - - +
130A VAL* 4.5 13.5 - - + -
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Residues in contact with GLN 122 (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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107A LEU* 3.3 5.7 - - - -
108A ARG* 2.8 73.2 + - + +
110A LEU* 3.5 32.0 - - + +
121A ALA* 1.3 73.7 - - - +
123A THR* 1.3 66.0 + - - +
126A GLY 3.3 7.4 - - - +
127A GLN* 2.8 27.6 + - + +
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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