Contacts of the helix formed by residues 108 - 116 (chain A) in PDB entry 3UZC
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 ILE 108 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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104A ILE* 2.8 28.6 + - + +
107A ALA* 1.3 87.0 - - + +
109A PRO* 1.3 63.5 - - + +
110A LEU* 4.3 4.7 - - + +
111A ARG* 3.4 38.6 - - + +
112A TYR* 3.1 15.6 + - - +
115A LEU* 5.7 5.6 - - + -
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Residues in contact with PRO 109 (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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105A ALA* 3.1 20.8 - - - +
106A ILE 3.9 5.2 - - - +
107A ALA 3.5 7.9 - - - +
108A ILE* 1.3 89.3 - - + +
110A LEU* 1.3 73.0 + - + +
112A TYR* 3.3 16.3 - - + +
113A ASN* 3.6 10.9 + - - -
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Residues in contact with LEU 110 (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 ILE* 3.2 4.9 - - + -
109A PRO* 1.3 86.0 - - + +
111A ARG* 1.3 67.0 + - + +
112A TYR 3.0 5.5 + - - -
113A ASN* 3.7 12.7 + - - +
114A GLY 4.3 2.9 + - - -
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Residues in contact with ARG 111 (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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104A ILE* 5.1 0.7 - - + -
108A ILE* 3.4 26.6 - - + +
110A LEU* 1.3 81.3 - - + +
112A TYR* 1.3 58.4 + - - +
113A ASN 3.3 0.4 - - - -
114A GLY* 3.0 9.0 + - - +
115A LEU* 2.8 71.7 + - + +
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Residues in contact with TYR 112 (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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39A ASN* 6.0 0.7 - - - +
40A VAL* 5.1 3.9 - - + +
41A THR* 3.2 25.8 + - - -
101A ASP* 3.1 23.3 + - - -
102A ARG* 3.4 9.4 + - - -
104A ILE* 3.9 8.3 - - + +
105A ALA* 3.4 36.1 - - + -
108A ILE 3.1 15.6 + - - +
109A PRO* 3.3 18.4 - - + +
110A LEU 3.0 0.8 - - - -
111A ARG* 1.3 77.7 - - - +
113A ASN* 1.3 78.7 + - - +
116A VAL* 2.8 60.2 + - + +
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Residues in contact with ASN 113 (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 PRO 3.6 17.2 + - - -
110A LEU* 3.7 7.4 + - - +
111A ARG 3.3 0.2 - - - -
112A TYR* 1.3 94.3 - - - +
114A GLY* 1.3 60.9 + - - +
116A VAL 3.9 12.0 - - - +
117A THR* 4.2 8.0 - - - +
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Residues in contact with GLY 114 (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 LEU 4.3 2.4 + - - -
111A ARG* 3.0 15.7 + - - -
113A ASN* 1.3 80.8 - - - +
115A LEU* 1.3 66.0 + - - +
117A THR* 3.7 11.0 - - - +
120A ARG* 4.6 5.7 + - - -
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Residues in contact with LEU 115 (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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104A ILE* 5.0 15.7 - - + -
108A ILE* 5.7 6.3 - - + -
111A ARG* 2.8 58.5 + - + +
112A TYR* 4.4 0.7 - - - +
114A GLY* 1.3 79.9 - - - +
116A VAL* 1.3 64.2 + - + +
117A THR* 2.8 12.5 + - - +
120A ARG* 3.3 44.7 + - - +
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Residues in contact with VAL 116 (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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40A VAL* 3.5 33.3 - - + +
44A PHE* 5.7 3.8 - - + -
101A ASP* 3.5 21.8 - - + +
104A ILE* 3.8 31.0 - - + -
112A TYR* 2.8 54.0 + - + +
113A ASN* 3.9 9.4 - - - +
115A LEU* 1.3 67.1 - - + +
117A THR* 1.3 60.4 + - - +
120A ARG* 5.6 0.7 - - - +
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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