Contacts of the helix formed by residues 146 - 164 (chain A) in PDB entry 4KEU
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 THR 146 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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99A TYR 4.0 11.2 - - - +
100A ILE* 2.8 34.4 + - + +
101A ASP* 5.2 2.2 - - - -
143A PRO* 3.8 25.1 - - + +
144A GLY 3.1 6.0 + - - +
145A ILE* 1.3 76.2 - - - +
147A LYS* 1.3 66.5 + - - +
148A ASP 3.8 0.4 + - - -
149A VAL* 3.2 15.9 + - - +
150A GLU* 2.9 22.3 + - - +
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Residues in contact with LYS 147 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
146A THR* 1.3 72.9 - - - +
148A ASP* 1.3 65.4 + - - +
150A GLU* 3.2 20.4 + - - +
151A LYS* 3.0 37.1 + - - +
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Residues in contact with ASP 148 (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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98A ILE* 4.0 2.9 - - + -
100A ILE 3.6 13.9 - - - +
101A ASP* 3.5 15.1 + - - +
102A LEU* 2.9 45.6 + - + +
146A THR* 3.3 1.8 + - - -
147A LYS* 1.3 77.9 - - - +
149A VAL* 1.3 67.2 + - - +
150A GLU 3.1 1.3 - - - -
151A LYS* 3.1 29.5 + - - +
152A VAL* 3.0 26.5 + - - +
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Residues in contact with VAL 149 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
98A ILE* 4.0 20.8 - - + +
99A TYR* 3.4 28.0 - - - +
100A ILE 4.1 2.5 - - - +
139A ALA 3.4 20.8 - - - +
140A ALA* 3.8 15.5 - - + -
144A GLY 4.2 4.0 - - - +
145A ILE* 4.2 11.2 - - - -
146A THR* 3.2 24.7 + - - +
148A ASP* 1.3 76.6 - - - +
150A GLU* 1.3 57.6 + - - +
152A VAL* 3.4 6.3 + - - +
153A ILE* 3.1 42.6 + - + +
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Residues in contact with GLU 150 (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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145A ILE* 3.8 16.6 - - + +
146A THR 2.9 13.8 + - - +
147A LYS* 3.3 24.3 + - - +
148A ASP 3.1 0.2 - - - -
149A VAL* 1.3 76.7 - - - +
151A LYS* 1.4 65.3 + - - +
153A ILE* 3.3 5.5 + - - +
154A ARG* 3.1 58.7 + - + +
183A ARG* 5.5 1.4 + - - -
184A ILE* 4.0 21.9 - - + +
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Residues in contact with LYS 151 (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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102A LEU* 4.3 10.5 - - + -
106A PHE 5.7 3.4 - - - +
109A ARG 4.8 12.3 - - - +
111A ILE* 3.9 32.0 - - + +
114A ILE* 4.1 16.6 - - + +
147A LYS* 3.0 24.8 + - - +
148A ASP* 3.1 32.3 + - - +
150A GLU* 1.4 74.8 - - - +
152A VAL* 1.3 57.4 + - - +
154A ARG* 3.4 2.8 + - - +
155A ALA* 2.9 29.5 + - - +
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Residues in contact with VAL 152 (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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96A ILE* 3.9 36.1 - - + +
98A ILE* 4.2 8.3 - - + -
102A LEU* 3.6 30.3 - - + -
114A ILE* 4.9 3.6 - - + -
118A PHE* 4.1 8.5 - - + -
138A ILE* 3.7 22.9 - - + -
139A ALA 5.3 1.8 - - - +
148A ASP 3.0 13.7 + - - +
149A VAL* 3.6 7.9 - - - +
151A LYS* 1.3 72.6 - - - +
153A ILE* 1.3 66.6 + - + +
155A ALA* 3.2 7.7 + - - +
156A ALA* 2.9 21.5 + - - +
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Residues in contact with ILE 153 (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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138A ILE* 4.0 24.5 - - + -
139A ALA 5.4 1.8 - - - +
145A ILE* 4.1 26.5 - - + -
149A VAL* 3.1 23.6 + - + +
150A GLU* 3.3 13.4 + - - +
152A VAL* 1.3 76.5 - - - +
154A ARG* 1.3 61.3 + - - +
156A ALA* 3.1 3.5 + - - +
157A ALA 3.1 17.5 + - - -
181A GLN* 4.2 16.2 - - + +
184A ILE* 3.5 37.5 - - + -
185A LEU* 3.4 29.6 - - + +
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Residues in contact with ARG 154 (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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111A ILE* 3.8 30.5 - - + -
150A GLU* 3.1 48.5 + - - +
151A LYS 3.8 3.6 - - - +
153A ILE* 1.3 71.9 - - - +
155A ALA* 1.3 65.5 + - - +
157A ALA* 3.3 9.5 + - - +
158A ILE* 3.1 27.0 + - + +
183A ARG* 5.9 1.6 - - - +
184A ILE* 4.1 22.9 - - + +
187A GLU* 5.7 2.8 + - - +
188A GLU* 3.1 47.6 + - + +
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Residues in contact with ALA 155 (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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111A ILE* 3.7 11.8 - - - +
114A ILE* 3.5 29.8 - - + -
115A ALA* 3.5 22.2 - - - +
118A PHE* 3.8 5.6 - - + -
151A LYS 2.9 17.4 + - - +
152A VAL 3.2 5.8 + - - +
154A ARG* 1.3 75.2 - - - +
156A ALA* 1.3 64.5 + - - +
158A ILE* 3.2 4.6 + - - +
159A ALA* 3.0 21.3 + - - +
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Residues in contact with ALA 156 (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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118A PHE* 3.9 10.4 - - + -
136A VAL* 3.8 15.6 - - + +
138A ILE* 3.7 28.7 - - + -
152A VAL 2.9 6.0 + - - +
153A ILE 3.1 8.7 + - - +
155A ALA* 1.3 76.7 - - - +
157A ALA* 1.3 57.7 + - - +
159A ALA* 3.1 3.9 + - - +
160A ASN* 2.8 29.1 + - - +
167A ILE* 3.8 18.1 - - + +
185A LEU* 4.5 3.1 - - + -
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Residues in contact with ALA 157 (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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153A ILE 3.1 11.6 + - - +
154A ARG* 3.4 10.3 - - - +
155A ALA 3.2 0.2 - - - -
156A ALA* 1.3 76.5 - - - +
158A ILE* 1.3 63.4 + - + +
160A ASN* 3.2 3.0 + - - +
161A LYS* 3.0 30.9 + - - +
185A LEU* 4.0 6.8 - - + +
188A GLU* 3.6 28.0 - - + +
190A VAL* 3.6 28.0 - - + -
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Residues in contact with ILE 158 (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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111A ILE* 3.8 28.5 - - + -
112A ASP* 4.2 25.1 - - - +
115A ALA* 3.5 21.3 - - + -
119A ILE* 4.6 9.4 - - + -
154A ARG* 3.1 11.1 + - + +
155A ALA 3.4 7.0 - - - +
157A ALA* 1.3 75.1 - - + +
159A ALA* 1.3 63.8 + - - +
161A LYS* 3.2 18.8 + - - +
162A GLU* 3.1 28.5 + - + +
188A GLU* 5.8 3.4 - - - +
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Residues in contact with ALA 159 (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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115A ALA* 4.5 1.3 - - - +
118A PHE* 3.8 28.3 - - + -
119A ILE* 4.0 20.6 - - + -
122A ILE* 4.2 4.9 - - + -
136A VAL* 4.2 11.9 - - + -
155A ALA 3.0 12.0 + - - +
156A ALA 3.6 7.2 - - - +
158A ILE* 1.3 76.4 - - - +
160A ASN* 1.3 53.0 - - - +
162A GLU 3.4 0.2 + - - -
163A THR* 2.5 42.0 + - - +
165A VAL* 5.1 0.4 - - - -
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Residues in contact with ASN 160 (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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136A VAL* 5.2 0.4 - - - +
156A ALA 2.8 16.1 + - - +
157A ALA* 3.5 7.6 - - - +
159A ALA* 1.3 73.1 - - - +
161A LYS* 1.3 63.3 + - - +
163A THR* 4.2 0.4 - - - -
164A LYS* 2.5 42.1 + - - +
165A VAL* 2.8 34.3 + - - +
166A PRO* 4.6 0.6 - - - +
167A ILE* 3.9 13.8 - - + +
189A GLY 4.9 0.3 - - - +
190A VAL* 3.6 31.9 - - - +
191A ASP 4.6 1.7 + - - -
194A LYS* 4.2 18.8 - - - +
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Residues in contact with LYS 161 (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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157A ALA* 3.0 28.0 + - - +
158A ILE* 3.2 15.4 + - - +
160A ASN* 1.3 86.5 - - - +
162A GLU* 1.3 65.4 + - + +
164A LYS* 4.7 11.1 + - - +
188A GLU* 2.7 38.8 + - - +
189A GLY* 4.3 17.7 - - - +
190A VAL 4.8 0.2 - - - +
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Residues in contact with GLU 162 (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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119A ILE* 4.1 23.6 - - + -
123A LYS* 4.3 21.3 + - - +
158A ILE* 3.1 23.1 + - + +
159A ALA 4.0 2.9 - - - +
161A LYS* 1.3 83.0 - - + +
163A THR* 1.3 61.9 + - + +
164A LYS* 5.5 0.7 - - - -
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Residues in contact with THR 163 (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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2A ARG* 4.7 7.4 + - - -
119A ILE* 4.4 9.0 - - + -
122A ILE* 3.5 38.0 - - + +
123A LYS* 4.1 20.2 - - + +
159A ALA 2.5 23.9 + - - +
162A GLU* 1.3 87.5 - - + +
164A LYS* 1.3 70.7 + - - +
165A VAL* 3.2 25.4 + - - +
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Residues in contact with LYS 164 (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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2A ARG* 3.7 25.8 + - - +
160A ASN* 2.5 29.9 + - - +
161A LYS* 4.9 10.8 + - - +
162A GLU 5.5 0.4 - - - -
163A THR* 1.3 75.3 + - - +
165A VAL* 1.3 64.4 + - - +
194A LYS* 3.2 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