Contacts of the helix formed by residues 144 - 160 (chain B) in PDB entry 1UN0
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 PRO 144 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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101B MET* 3.8 33.0 - - + -
105B LEU* 6.2 0.4 - - + -
142B ASN 4.7 0.2 - - - +
143B GLN* 1.3 100.4 - - + +
145B GLU* 1.3 64.4 + - - +
146B MET* 4.1 5.2 - - + +
147B LEU* 4.0 21.5 - - + +
148B GLN* 3.1 21.1 + - - +
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Residues in contact with GLU 145 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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143B GLN 3.6 1.0 + - - -
144B PRO* 1.3 72.5 - - - +
146B MET* 1.3 63.8 + - + +
148B GLN* 3.4 18.3 - - - +
149B LEU* 3.3 19.9 + - - +
184B THR 4.8 1.4 - - - +
185B GLY* 3.9 6.6 - - - -
186B SER* 3.2 35.1 + - - +
189B VAL* 3.5 19.7 - - + +
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Residues in contact with MET 146 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
105B LEU* 3.6 23.8 - - + +
144B PRO* 3.2 5.2 - - + +
145B GLU* 1.3 81.3 - - + +
147B LEU* 1.3 61.6 + - - +
149B LEU* 3.9 23.1 - - + +
150B GLU* 3.5 29.0 + - + +
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Residues in contact with LEU 147 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
101B MET* 4.9 2.9 - - - +
104B GLN* 4.2 16.4 - - + +
105B LEU* 3.5 43.2 - - + +
108B THR* 3.9 7.4 - - - +
138B PHE* 3.8 39.0 - - + +
143B GLN* 3.6 24.0 - - - +
144B PRO* 3.5 24.8 + - + +
145B GLU 3.3 0.4 - - - -
146B MET* 1.3 75.3 - - - +
148B GLN* 1.3 66.9 + - - +
149B LEU 3.0 1.1 - - - -
150B GLU* 2.9 5.9 + - - +
151B ALA* 2.9 23.6 + - - +
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Residues in contact with GLN 148 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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138B PHE 3.3 23.1 + - - +
139B MET* 3.6 11.3 + - - +
140B ARG 2.4 33.8 + - - +
141B GLU* 3.8 9.3 + - - +
143B GLN* 3.8 10.1 + - + +
144B PRO 3.1 16.8 + - - +
145B GLU* 3.4 24.8 - - - +
147B LEU* 1.3 76.8 - - - +
149B LEU* 1.3 60.8 + - - +
151B ALA* 4.0 0.4 - - - +
152B ALA* 3.1 26.2 + - - +
181B LEU* 3.7 25.1 - - + +
184B THR* 4.8 5.7 + - - -
185B GLY* 5.4 0.2 - - - -
189B VAL* 4.9 1.9 - - + +
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Residues in contact with LEU 149 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
145B GLU* 3.3 14.9 + - + +
146B MET* 3.9 26.5 - - + +
147B LEU 3.0 1.2 + - - -
148B GLN* 1.3 79.0 - - - +
150B GLU* 1.3 67.9 + - + +
152B ALA* 3.6 2.9 - - - +
153B TRP* 2.8 46.6 + - + +
188B GLU* 4.2 34.3 - - + +
189B VAL* 3.9 28.2 - - + +
192B GLN* 4.5 11.7 - - + -
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Residues in contact with GLU 150 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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105B LEU* 4.5 3.6 - - + -
108B THR* 3.5 21.4 - - + +
109B VAL* 3.8 22.6 - - + +
112B ARG* 2.6 57.8 + - - +
146B MET* 3.5 21.0 + - + +
147B LEU* 2.9 6.3 + - - +
149B LEU* 1.3 84.0 - - + +
151B ALA* 1.3 66.0 + - - +
153B TRP* 3.8 11.9 - - - +
154B ALA* 2.9 25.3 + - - +
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Residues in contact with ALA 151 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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108B THR* 3.4 12.5 - - + +
135B LEU* 3.5 17.0 - - - +
138B PHE* 3.4 34.5 - - + -
139B MET* 3.9 9.2 - - + -
147B LEU 2.9 11.3 + - - +
148B GLN 4.1 0.7 - - - +
150B GLU* 1.3 75.4 - - - +
152B ALA* 1.3 66.7 + - - +
154B ALA* 3.1 6.4 + - - +
155B LEU* 2.9 27.7 + - - +
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Residues in contact with ALA 152 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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139B MET* 3.4 27.3 - - - +
148B GLN 3.1 17.9 + - - +
149B LEU* 3.6 3.8 - - - +
151B ALA* 1.3 79.7 - - - +
153B TRP* 1.3 60.8 + - - +
155B LEU* 3.4 2.2 + - - +
156B THR* 2.9 30.2 + - - -
178B PHE* 4.1 9.3 - - + -
181B LEU* 4.2 9.6 - - + -
189B VAL* 5.1 5.2 - - + +
192B GLN* 4.7 10.3 - - + -
193B ALA 5.5 0.4 - - - +
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Residues in contact with TRP 153 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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118A GLU* 5.2 9.9 - - + +
112B ARG* 3.5 50.0 - - + -
116B SER* 4.1 6.3 + - - -
149B LEU* 2.8 36.2 + - + +
150B GLU* 3.8 12.6 - - - +
151B ALA 3.2 0.2 - - - -
152B ALA* 1.3 74.1 - - - +
154B ALA* 1.3 63.9 + - - +
156B THR* 3.3 1.9 + - - -
157B ASN* 3.2 38.9 + - - +
192B GLN* 3.5 41.0 + - + +
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Residues in contact with ALA 154 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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108B THR 4.7 2.7 - - - +
111B PHE* 4.8 1.1 - - + -
112B ARG* 4.0 21.9 - - + +
115B LEU* 3.4 29.1 - - + +
135B LEU* 4.3 16.6 - - + -
150B GLU 2.9 17.9 + - - +
151B ALA* 3.4 5.6 - - - +
153B TRP* 1.3 77.6 - - - +
155B LEU* 1.3 62.9 + - - +
157B ASN* 3.1 16.2 + - - +
158B ILE* 3.3 9.6 + - - +
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Residues in contact with LEU 155 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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132B VAL* 4.0 30.1 - - + -
135B LEU* 4.1 25.6 - - + +
136B VAL* 3.7 24.0 - - + -
139B MET* 3.7 33.4 - - + -
151B ALA 2.9 14.8 + - - +
152B ALA 3.8 4.5 - - - +
154B ALA* 1.3 73.3 - - - +
156B THR* 1.3 60.3 + - - +
158B ILE* 3.0 7.7 + - + +
159B ALA* 2.7 30.5 + - - +
169B VAL* 4.1 17.9 - - + +
174B ALA* 4.6 1.8 - - + -
178B PHE* 3.8 14.4 - - + -
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Residues in contact with THR 156 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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118A GLU* 6.2 0.9 - - + -
119A HIS* 4.4 1.1 - - + -
152B ALA 2.9 19.2 + - - -
153B TRP 3.4 1.8 - - - +
154B ALA 3.1 0.4 - - - -
155B LEU* 1.3 77.2 - - - +
157B ASN* 1.3 68.1 + - - +
159B ALA* 3.1 7.4 + - - +
160B SER* 2.9 25.0 + - - -
178B PHE* 4.2 1.0 - - - -
192B GLN* 3.2 47.6 + - - +
195B TRP* 3.3 31.4 - - + -
196B ALA* 3.4 15.4 - - + +
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Residues in contact with ASN 157 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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118A GLU* 3.9 28.4 - - - +
112B ARG 3.9 8.1 + - - -
115B LEU* 3.9 25.1 - - + +
116B SER* 3.0 28.7 + - - +
123B ILE* 3.5 20.0 - - - +
153B TRP* 3.2 28.0 + - - +
154B ALA* 3.1 9.1 + - - +
156B THR* 1.3 82.5 - - - +
158B ILE* 1.3 60.3 + - - +
160B SER* 3.8 12.6 + - - -
161B GLY 4.1 1.0 + - - -
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Residues in contact with ILE 158 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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115B LEU* 4.1 23.6 - - + -
123B ILE* 4.0 12.6 - - + +
126B VAL* 4.5 12.6 - - + -
127B ILE* 3.9 24.0 - - + -
132B VAL* 3.8 24.9 - - + -
135B LEU* 4.8 4.3 - - + -
154B ALA 3.3 13.0 + - - +
155B LEU* 3.0 15.2 + - + +
156B THR 3.0 0.4 - - - -
157B ASN* 1.3 75.9 - - - +
159B ALA* 1.3 60.9 + - - +
160B SER 3.0 4.0 - - - -
161B GLY* 3.1 16.3 + - - -
165B GLN* 3.5 21.4 - - - +
168B VAL* 5.4 0.2 - - + -
169B VAL* 3.4 21.3 - - + -
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Residues in contact with ALA 159 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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155B LEU 2.7 16.2 + - - +
156B THR* 3.1 7.4 + - - +
158B ILE* 1.3 76.1 - - - +
160B SER* 1.3 56.7 + - - +
161B GLY 3.2 1.3 + - - -
166B THR* 2.5 33.9 + - - +
169B VAL* 4.2 20.2 - - + -
178B PHE* 5.5 0.2 - - + -
196B ALA* 4.7 14.1 - - + +
199B ASN* 3.7 11.4 - - - +
200B VAL* 4.5 16.2 - - + -
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Residues in contact with SER 160 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
118A GLU* 4.4 10.0 + - - -
156B THR 2.9 15.9 + - - -
157B ASN* 3.8 11.7 + - - -
158B ILE 3.0 0.4 - - - -
159B ALA* 1.3 77.6 - - - +
161B GLY* 1.3 61.9 + - - +
195B TRP* 3.9 15.5 + - - -
199B ASN* 3.6 33.2 - - - +
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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