Contacts of the helix formed by residues 151 - 163 (chain K) 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 K).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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132K ARG* 2.7 60.4 + - - +
149K GLY 3.7 4.0 + - - +
150K VAL* 1.3 71.5 - - - +
152K GLN* 1.3 60.9 + - - +
153K LEU 3.4 1.7 + - - -
154K GLN* 3.1 26.5 + - + +
155K ARG* 3.2 18.7 + - - +
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Residues in contact with GLN 152 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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130K GLN 2.8 23.2 + - - -
131K TRP* 3.0 12.0 + - - +
134K PHE* 3.6 13.1 - - - +
150K VAL* 3.4 11.4 - - + +
151K ASP* 1.3 72.1 - - - +
153K LEU* 1.3 58.1 + - - +
155K ARG* 3.2 7.0 + - - +
156K VAL* 2.9 33.6 + - - +
170K ILE 3.9 10.8 - - - +
171K LEU* 3.8 11.9 - - + -
172K SER* 2.7 49.0 + - - +
174L TRP* 4.6 1.4 + - - -
176L PRO* 3.7 29.1 - - + +
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Residues in contact with LEU 153 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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84K VAL* 3.8 28.3 - - + -
131K TRP* 3.4 8.2 + - + +
132K ARG* 3.6 31.0 - - - +
151K ASP* 3.3 1.0 + - - -
152K GLN* 1.3 78.0 - - - +
154K GLN* 1.3 63.9 + - - +
156K VAL* 3.1 17.7 + - + +
157K ILE* 3.1 17.3 + - + +
171K LEU* 3.9 27.7 - - + +
234K LEU* 4.7 5.2 - - + -
238K ILE* 4.4 22.0 - - + -
292K ILE* 3.8 33.2 - - + -
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Residues in contact with GLN 154 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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139J THR* 6.1 7.4 - - + -
132K ARG* 4.4 4.7 - - - +
151K ASP* 3.1 31.1 + - + +
153K LEU* 1.3 76.0 - - - +
155K ARG* 1.3 58.2 + - - +
157K ILE* 3.1 17.2 + - - +
158K ASP* 2.9 56.4 + - - +
291K ASP* 5.3 6.7 - - - +
292K ILE* 4.0 24.7 - - - +
293K ASP* 5.1 2.0 + - - -
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Residues in contact with ARG 155 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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117J HIS* 3.4 49.9 + - - -
181J LEU* 5.2 10.7 - - - +
150K VAL* 5.9 5.5 - - + +
151K ASP 3.2 13.7 + - - +
152K GLN* 3.5 11.9 - - - +
153K LEU 3.2 0.8 - - - -
154K GLN* 1.3 77.0 - - - +
156K VAL* 1.3 55.0 + - + +
158K ASP* 4.4 5.9 + - - -
159K THR* 2.7 50.0 + - - +
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Residues in contact with VAL 156 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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152K GLN 2.9 20.5 + - - +
153K LEU* 3.1 12.1 + - + +
155K ARG* 1.3 78.1 - - + +
157K ILE* 1.3 64.0 + - - +
159K THR* 3.8 2.2 - - - -
160K ILE* 3.0 43.9 + - + +
169K ILE* 3.6 30.3 - - + +
170K ILE 3.7 25.8 - - - +
171K LEU* 4.5 8.3 - - + -
193K PHE* 3.8 16.8 - - + -
238K ILE* 4.6 9.9 - - + -
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Residues in contact with ILE 157 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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153K LEU* 3.1 16.7 + - + +
154K GLN* 3.1 30.7 + - - +
156K VAL* 1.3 78.7 - - + +
158K ASP* 1.3 64.3 + - - +
160K ILE* 3.3 1.9 + - - +
161K LYS* 3.2 36.8 + - + +
238K ILE* 3.6 44.2 - - + -
241K ILE* 4.0 18.6 - - + -
242K THR* 3.7 15.4 - - + +
292K ILE* 4.6 17.7 - - + -
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Residues in contact with ASP 158 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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117J HIS* 3.2 35.0 + - + +
139J THR 5.0 7.8 - - - +
140J ASP* 5.5 8.0 - - - +
154K GLN* 2.9 47.1 + - - +
155K ARG* 3.8 7.4 + - - +
157K ILE* 1.3 77.1 - - - +
159K THR* 1.3 60.2 + - - +
161K LYS* 3.4 7.8 + - - +
162K ASN* 2.9 38.6 + - - +
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Residues in contact with THR 159 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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117J HIS* 3.7 12.9 - - + +
155K ARG* 2.7 40.2 + - - +
156K VAL* 3.8 4.7 - - - -
158K ASP* 1.3 74.8 - - - +
160K ILE* 1.3 60.2 + - - +
163K ASN* 2.7 55.1 + - + +
166K ASP* 3.5 24.9 - - + +
169K ILE* 3.8 18.8 - - + -
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Residues in contact with ILE 160 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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156K VAL* 3.0 34.4 + - + +
157K ILE 3.7 4.5 - - - +
159K THR* 1.3 76.7 - - - +
161K LYS* 1.3 61.1 + - - +
164K PRO* 3.5 24.8 - - - +
169K ILE* 4.2 13.0 - - + -
193K PHE* 4.4 5.4 - - + -
195K VAL* 3.8 24.4 - - + +
209K LEU* 3.8 16.2 - - + -
238K ILE* 3.6 29.8 - - + -
242K THR* 3.7 23.6 - - + +
244K THR* 3.9 14.6 - - + +
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Residues in contact with LYS 161 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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157K ILE* 3.2 34.2 + - + +
158K ASP* 3.8 8.8 + - - +
159K THR 3.2 0.4 - - - -
160K ILE* 1.3 79.6 - - - +
162K ASN* 1.3 71.6 + - - +
163K ASN 3.7 0.2 - - - -
164K PRO* 4.5 3.2 - - - +
241K ILE* 4.0 18.1 + - - +
242K THR* 3.7 25.6 - - - +
286K LYS* 5.8 4.6 - - - +
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Residues in contact with ASN 162 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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107J LYS* 2.8 29.0 + - - +
116J GLY 3.6 0.4 - - - +
117J HIS 2.5 37.8 + - - +
118J ARG* 3.5 9.4 - - - +
119J ARG* 3.3 34.4 - - - +
158K ASP* 2.9 18.3 + - - +
161K LYS* 1.3 89.3 - - - +
163K ASN* 1.3 59.0 + - - +
164K PRO* 3.7 4.5 - - - +
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Residues in contact with ASN 163 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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107J LYS* 4.5 0.2 - - - +
111J GLU* 3.5 25.6 + - - +
116J GLY* 3.3 25.9 - - - +
117J HIS* 4.6 0.4 - - - +
159K THR* 2.7 23.9 + - + +
162K ASN* 1.3 75.1 - - - +
164K PRO* 1.3 62.3 - - - +
165K THR* 3.3 12.4 + - - -
166K ASP* 3.0 54.8 + - - +
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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