Contacts of the helix formed by residues 151 - 163 (chain G) in PDB entry 2AAZ
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 ASP 151 (chain G).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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132G ARG* 2.8 59.5 + - - +
149G GLY 3.7 3.6 + - - +
150G VAL* 1.3 74.8 - - - +
152G GLN* 1.3 60.5 + - - +
153G LEU 3.3 2.3 + - - -
154G GLN* 3.1 25.8 + - + +
155G ARG* 3.2 18.7 + - - +
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Residues in contact with GLN 152 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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130G GLN 2.9 23.2 + - - -
131G TRP* 3.0 9.9 + - - +
134G PHE* 3.6 13.1 - - + +
150G VAL* 3.1 13.4 + - + +
151G ASP* 1.3 70.8 - - - +
153G LEU* 1.3 58.3 + - - +
155G ARG* 3.2 8.2 + - - +
156G VAL* 2.9 32.9 + - - +
170G ILE 3.9 10.8 - - - +
171G LEU* 3.8 11.5 - - + -
172G SER* 2.7 47.0 + - - +
174H TRP* 4.7 1.6 + - - -
176H PRO* 3.7 29.3 - - + +
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Residues in contact with LEU 153 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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84G VAL* 3.9 28.7 - - + -
131G TRP* 3.4 9.1 + - + +
132G ARG* 3.6 31.0 - - - +
151G ASP* 3.3 1.4 + - - -
152G GLN* 1.3 78.9 - - - +
154G GLN* 1.3 63.0 + - - +
156G VAL* 3.1 11.1 + - + +
157G ILE* 3.1 23.9 + - + +
171G LEU* 4.0 28.5 - - + +
234G LEU* 4.7 4.3 - - + -
238G ILE* 4.3 23.1 - - + -
292G ILE* 3.7 33.0 - - + -
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Residues in contact with GLN 154 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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132G ARG* 4.4 4.7 - - - +
151G ASP* 3.1 31.2 + - + +
153G LEU* 1.3 77.5 - - - +
155G ARG* 1.3 57.8 + - - +
157G ILE* 3.1 18.5 + - - +
158G ASP* 2.9 57.5 + - - +
291G ASP* 5.2 7.7 - - - +
292G ILE* 3.9 25.5 - - - +
293G ASP* 5.0 1.8 + - - -
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Residues in contact with ARG 155 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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150G VAL* 5.9 4.3 - - + -
151G ASP 3.2 13.9 + - - +
152G GLN* 3.2 11.8 + - - +
153G LEU 3.2 0.4 - - - -
154G GLN* 1.3 77.0 - - - +
156G VAL* 1.3 54.9 + - + +
158G ASP* 3.4 13.3 + - - +
159G THR* 2.7 51.2 + - - +
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Residues in contact with VAL 156 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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152G GLN 2.9 20.7 + - - +
153G LEU* 3.3 12.1 - - + +
155G ARG* 1.3 78.2 - - + +
157G ILE* 1.3 63.6 + - + +
159G THR* 3.4 2.8 + - - -
160G ILE* 3.0 39.1 + - + +
169G ILE* 3.7 27.1 - - + +
170G ILE 3.7 28.5 - - - +
171G LEU* 4.5 9.4 - - + -
193G PHE* 3.8 16.8 - - + -
238G ILE* 4.5 9.6 - - + -
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Residues in contact with ILE 157 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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153G LEU* 3.4 14.4 - - + +
154G GLN* 3.1 30.0 + - - +
156G VAL* 1.3 78.6 - - - +
158G ASP* 1.3 65.1 + - - +
160G ILE* 3.3 2.3 + - - +
161G LYS* 3.1 34.7 + - + +
238G ILE* 3.6 44.2 - - + -
241G ILE* 3.9 22.0 - - + -
242G THR* 3.7 17.2 - - + +
292G ILE* 4.4 18.2 - - + -
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Residues in contact with ASP 158 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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154G GLN* 2.9 47.8 + - - +
155G ARG* 3.8 17.0 + - - +
157G ILE* 1.3 78.9 - - - +
159G THR* 1.3 57.6 + - - +
161G LYS* 3.5 7.9 + - - -
162G ASN* 2.9 46.3 + - - +
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Residues in contact with THR 159 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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155G ARG* 2.7 37.9 + - - +
156G VAL* 3.8 5.3 - - - -
158G ASP* 1.3 75.0 - - - +
160G ILE* 1.3 60.8 + - - +
162G ASN* 5.3 0.2 - - - -
163G ASN* 2.7 45.3 + - + +
164G PRO* 4.7 0.2 - - - -
166G ASP* 3.5 38.1 - - + +
169G ILE* 3.9 16.8 - - + -
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Residues in contact with ILE 160 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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156G VAL* 3.0 32.2 + - + +
157G ILE 3.3 4.2 + - - +
159G THR* 1.3 78.5 - - - +
161G LYS* 1.3 61.2 + - - +
164G PRO* 3.5 25.2 - - - +
169G ILE* 4.2 13.2 - - + -
193G PHE* 4.4 4.9 - - + -
195G VAL* 3.8 24.3 - - + +
209G LEU* 3.8 16.2 - - + -
238G ILE* 3.6 30.1 - - + -
242G THR* 3.7 24.0 - - + +
244G THR* 3.9 15.1 - - + +
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Residues in contact with LYS 161 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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157G ILE* 3.1 32.4 + - + +
158G ASP* 3.9 10.0 + - - +
160G ILE* 1.3 79.2 - - - +
162G ASN* 1.3 72.0 + - - +
164G PRO* 4.5 3.7 - - - +
241G ILE* 3.9 21.5 + - - +
242G THR* 3.7 26.5 - - - +
243G ASP* 6.1 0.4 - - - -
286G LYS* 5.8 4.2 - - - +
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Residues in contact with ASN 162 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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158G ASP* 2.9 32.3 + - - +
161G LYS* 1.3 89.1 - - - +
163G ASN* 1.3 65.4 + - + +
164G PRO* 3.6 5.1 - - - +
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Residues in contact with ASN 163 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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159G THR* 2.7 25.9 + - + +
162G ASN* 1.3 79.9 - - + +
164G PRO* 1.4 61.1 - - - +
165G THR* 3.3 12.0 + - - -
166G ASP* 2.9 51.4 + - - +
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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