Contacts of the helix formed by residues 181 - 195 (chain A) in PDB entry 7BTN
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 GLY 181 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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176A LYS* 6.1 0.4 - - - +
179A LYS 3.3 0.2 + - - -
180A PRO* 1.3 71.8 - - - +
182A TYR* 1.3 58.3 + - - +
183A LEU 3.5 2.0 - - - -
184A GLU* 3.3 24.0 + - - +
185A ALA* 2.9 31.6 + - - +
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Residues in contact with TYR 182 (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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52A ARG* 4.2 6.9 - - - -
91A ILE* 2.5 40.3 + - + -
92A TRP* 3.5 28.3 - + - -
125A ILE* 3.5 40.9 + - + -
175A VAL* 4.3 9.9 - - + -
179A LYS* 3.1 42.5 + - + +
180A PRO 3.3 1.4 + - - +
181A GLY* 1.3 77.9 - - - +
183A LEU* 1.3 59.6 + - + +
185A ALA* 3.3 3.8 + - + -
186A THR* 2.8 36.9 + - - -
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Residues in contact with LEU 183 (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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125A ILE* 6.4 0.2 - - + -
157A ILE* 4.6 8.5 - - + -
172A ILE* 3.8 33.2 - - + +
175A VAL* 3.7 23.1 - - + -
176A LYS* 3.6 36.8 - - + +
179A LYS 4.9 0.2 + - - -
181A GLY 3.5 0.2 - - - -
182A TYR* 1.3 73.6 - - + +
184A GLU* 1.3 74.2 + - - +
186A THR* 3.1 7.2 + - - +
187A VAL* 3.0 27.1 + - - +
210A PHE* 3.7 41.0 - - + -
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Residues in contact with GLU 184 (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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176A LYS* 5.9 3.4 - - - +
181A GLY* 3.3 29.9 + - - +
182A TYR 3.3 0.2 - - - -
183A LEU* 1.3 82.8 + - - +
185A ALA* 1.3 56.3 + - - +
187A VAL* 3.2 7.9 + - - +
188A ASP* 2.9 29.4 + - - +
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Residues in contact with ALA 185 (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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87A TYR* 3.4 34.4 + - + +
91A ILE* 3.8 12.0 - - + +
181A GLY 2.9 19.1 + - - +
182A TYR* 3.7 7.2 - - + +
184A GLU* 1.3 75.5 - - - +
186A THR* 1.3 56.7 + - - +
188A ASP* 3.7 2.0 - - - +
189A TRP* 2.8 32.2 + - - +
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Residues in contact with THR 186 (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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91A ILE* 4.1 0.9 - - - +
92A TRP* 2.9 42.8 + - + +
123A CYS* 5.0 0.7 - - - -
144A LEU* 3.9 23.3 - - + -
157A ILE* 4.7 10.6 - - + +
182A TYR* 2.8 24.0 + - - -
183A LEU* 3.1 14.3 + - - +
185A ALA* 1.3 76.7 - - - +
187A VAL* 1.3 63.5 + - - +
189A TRP* 3.3 2.3 + - - +
190A PHE* 3.0 29.7 + - + -
210A PHE* 4.3 8.7 - - + -
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Residues in contact with VAL 187 (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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144A LEU* 4.2 7.0 - - + -
183A LEU 3.0 5.8 + - - +
184A GLU* 3.7 7.9 - - - +
186A THR* 1.3 75.5 - - - +
188A ASP* 1.3 58.0 + - - +
190A PHE* 3.3 4.5 + - - +
191A ARG* 2.9 55.3 + - - +
206A PHE* 4.0 4.7 - - + -
208A ALA* 3.8 32.5 - - + -
210A PHE* 3.4 34.1 - - + -
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Residues in contact with ASP 188 (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 PRO* 5.3 0.3 - - - +
87A TYR* 2.8 23.7 + - - +
184A GLU 2.9 17.5 + - - +
185A ALA* 3.7 4.5 - - - +
187A VAL* 1.3 78.2 - - - +
189A TRP* 1.3 61.3 + - - +
191A ARG* 3.8 21.4 + - - +
192A ARG* 2.9 64.9 + - - +
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Residues in contact with TRP 189 (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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81A VAL* 4.3 14.8 - - + -
82A ALA 5.3 2.6 + - - -
84A LEU* 3.7 19.9 - - + +
87A TYR* 3.7 29.7 - + + +
89A GLY 2.9 27.5 + - - -
90A TYR* 4.1 34.5 - + - +
91A ILE* 4.0 19.1 - - + -
92A TRP* 3.6 21.1 - + + -
185A ALA 2.8 21.5 + - - +
186A THR 3.5 4.9 - - - +
188A ASP* 1.3 74.2 + - - +
190A PHE* 1.3 86.2 + + - +
192A ARG* 5.6 0.2 - - - +
193A TYR* 2.9 63.1 + + + +
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Residues in contact with PHE 190 (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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92A TRP* 3.6 28.5 - + - -
94A TYR* 4.3 8.1 - + - -
123A CYS* 4.0 9.2 - - - -
144A LEU* 3.8 15.3 - - + -
146A MET* 3.4 22.0 - - + -
155A LYS* 3.6 42.2 - - + -
186A THR* 3.0 33.0 + - + +
187A VAL 4.0 1.8 - - - +
189A TRP* 1.3 100.9 - + - +
191A ARG* 1.3 57.3 + - - +
193A TYR* 3.6 6.0 - + - +
194A LYS* 2.9 50.3 + - + +
206A PHE* 4.1 1.3 - - - -
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Residues in contact with ARG 191 (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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187A VAL* 2.9 41.8 + - - +
188A ASP* 3.8 32.6 + - - +
190A PHE* 1.3 76.6 - - - +
192A ARG* 1.3 59.0 + - - +
195A VAL* 2.8 32.2 + - + +
198A GLY 3.3 22.9 - - - +
199A LYS* 4.6 3.1 - - - +
200A PRO* 4.0 17.4 - - + +
206A PHE* 3.6 37.4 - - + -
208A ALA* 5.8 0.2 - - - +
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Residues in contact with ARG 192 (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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84A LEU* 3.5 34.9 - - + +
85A PHE 2.8 35.7 + - - +
86A PRO* 4.5 1.2 - - - +
87A TYR* 4.0 9.3 - - - -
188A ASP* 2.9 50.7 + - - +
191A ARG* 1.3 76.0 - - + +
193A TYR* 1.3 62.7 + - - +
194A LYS 3.4 0.2 - - - -
195A VAL 3.9 6.3 - - - -
196A PRO* 3.4 23.1 - - + +
198A GLY* 4.5 10.5 - - - +
284A PHE 3.4 21.0 + - - -
285A HIS 4.5 0.2 - - - -
286A HIS* 3.9 45.1 - - + +
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Residues in contact with TYR 193 (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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57A LYS* 3.5 30.1 - - - +
79A ARG* 4.3 10.7 + - - -
81A VAL* 4.0 25.8 - - + -
82A ALA 5.7 2.0 - - - -
84A LEU* 4.1 9.6 - - + +
189A TRP* 2.9 51.5 + + + +
190A PHE* 3.6 8.5 - + - +
191A ARG 3.2 0.2 - - - -
192A ARG* 1.3 80.7 - - - +
194A LYS* 1.3 76.0 + - + +
196A PRO* 4.1 10.2 - - - +
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Residues in contact with LYS 194 (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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146A MET* 3.9 21.7 - - - +
148A ASP* 3.6 46.5 - - - +
153A ASP* 3.0 29.9 + - - -
155A LYS* 4.5 1.2 - - - +
190A PHE* 2.9 32.7 + - - +
191A ARG 4.2 0.9 - - - +
193A TYR* 1.3 90.6 - - + +
195A VAL* 1.3 67.1 + - + +
196A PRO* 3.3 9.5 - - - +
206A PHE* 3.6 23.1 - - + -
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Residues in contact with VAL 195 (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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148A ASP* 5.5 1.8 - - - +
149A GLU* 5.2 7.0 - - + +
191A ARG 2.8 18.5 + - - +
192A ARG* 3.7 5.0 - - - +
194A LYS* 1.3 81.6 - - + +
196A PRO* 1.3 58.6 - - + +
197A ASP* 3.0 14.8 - - + +
198A GLY* 2.8 37.2 + - - +
199A LYS 4.2 17.0 - - - +
200A PRO* 4.1 23.3 - - + -
205A ALA* 4.7 6.5 - - + +
206A PHE* 4.5 11.7 - - + -
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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