Contacts of the strand formed by residues 136 - 142 (chain A) in PDB entry 3TQI
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 LEU 136 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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112A GLN* 4.1 33.2 - - + +
113A LEU 3.3 14.8 - - - +
114A ARG* 3.6 31.2 - - + -
126A GLU 3.9 0.2 - - - -
127A ASP* 2.9 26.1 + - - +
128A GLN* 3.0 30.4 + - + +
130A SER* 3.4 30.7 - - - +
134A GLU 3.7 7.9 - - - +
135A PRO* 1.3 74.4 - - - +
137A LEU* 1.3 63.2 + - - +
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Residues in contact with LEU 137 (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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112A GLN* 3.7 3.1 - - - -
113A LEU* 2.8 54.7 + - + +
115A VAL* 4.1 18.4 - - + -
122A PHE* 4.7 6.1 - - + -
125A ILE* 3.2 41.3 - - + +
126A GLU* 4.1 2.0 - - + -
127A ASP* 3.4 11.7 - - - +
136A LEU* 1.3 81.3 - - - +
138A ASP* 1.3 64.8 + - - +
139A VAL* 3.5 16.4 + - + -
189A GLN* 4.9 3.8 - - + -
193A ILE* 3.7 29.6 - - + -
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Residues in contact with ASP 138 (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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110A HIS* 3.5 23.8 + - + +
111A ALA 3.9 3.4 - - - -
112A GLN* 3.3 25.6 + - - +
127A ASP* 3.2 26.9 + - - +
128A GLN* 5.2 7.1 + - - +
137A LEU* 1.3 71.2 - - - +
139A VAL* 1.3 62.2 + - - +
186A HIS 4.5 1.3 - - - +
187A THR* 3.6 3.7 - - - -
188A PRO* 3.5 32.6 - - + +
189A GLN 5.3 0.3 + - - -
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Residues in contact with VAL 139 (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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110A HIS* 3.4 5.1 - - - -
111A ALA* 2.8 46.2 + - + +
113A LEU* 4.1 18.4 - - + -
137A LEU* 3.9 23.1 - - + +
138A ASP* 1.3 79.1 - - - +
140A TRP* 1.3 60.1 + - - +
141A MET* 3.7 17.0 + - - -
180A PHE* 3.7 44.6 - - + -
186A HIS 4.0 5.6 - - - -
187A THR* 3.8 8.3 - - - -
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Residues in contact with TRP 140 (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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19A TYR* 5.2 10.8 + + - -
108A PHE* 4.0 33.3 - + + +
109A GLY* 3.6 9.9 - - - -
110A HIS* 3.6 31.4 - - + -
139A VAL* 1.3 71.5 - - - +
141A MET* 1.3 65.2 + - - +
180A PHE* 3.2 1.3 - - - +
181A HIS* 3.1 36.6 + - - +
184A VAL* 3.9 23.8 - - + -
186A HIS* 3.9 37.5 - + + -
187A THR* 3.2 19.8 - - + +
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Residues in contact with MET 141 (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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108A PHE* 3.5 11.4 - - - +
109A GLY 2.7 35.0 + - - +
111A ALA* 4.1 10.8 - - + -
113A LEU* 5.0 0.9 - - + -
139A VAL* 3.7 19.4 + - - -
140A TRP* 1.3 77.0 - - - +
142A SER* 1.3 65.7 + - - +
143A HIS* 3.7 29.4 - - + +
160A THR* 3.6 35.2 - - + +
163A SER* 3.9 3.1 - - - -
166A ALA* 3.6 23.6 - - + -
179A GLN* 3.9 26.0 - - - +
180A PHE* 3.9 10.8 - - - -
181A HIS* 5.5 0.2 - - - -
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Residues in contact with SER 142 (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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86A CYS* 3.7 27.6 - - - -
107A GLU 3.8 5.1 + - - -
108A PHE* 3.7 23.6 - - - -
140A TRP 4.0 0.4 + - - -
141A MET* 1.3 72.6 - - - +
143A HIS* 1.3 60.4 + - - +
144A GLY* 3.5 1.7 + - - -
145A ASP* 2.8 30.2 + - - -
179A GLN* 3.0 34.3 + - - +
180A PHE* 4.3 0.4 - - - +
181A HIS* 4.6 0.2 - - - -
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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