Contacts of the helix formed by residues 143 - 164 (chain A) in PDB entry 2HW6
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 ASN 143 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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141A HIS* 6.0 0.4 - - - -
142A PHE* 1.3 77.7 - - - +
144A GLU* 1.3 60.2 + - - +
145A ARG* 3.1 11.2 + - - +
146A GLU* 2.8 55.3 + - - +
147A ALA* 2.9 27.2 + - - +
254A LEU* 4.5 0.9 - - - -
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Residues in contact with GLU 144 (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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143A ASN* 1.3 72.6 - - - +
145A ARG* 1.3 73.6 + - - +
147A ALA 4.0 0.2 - - - -
148A SER* 3.0 28.9 + - - -
254A LEU* 4.0 19.1 - - + -
301A HIS 4.2 2.8 - - - +
302A ILE* 3.4 15.7 - - + +
303A SER* 2.6 52.3 + - - -
306A ALA* 4.3 4.0 - - - -
332A TRP* 2.9 29.6 + - + +
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Residues in contact with ARG 145 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
143A ASN* 3.1 8.3 + - - +
144A GLU* 1.3 95.7 + - - +
146A GLU* 1.3 66.6 + - - +
148A SER* 3.5 12.4 + - - -
149A ARG* 3.3 43.8 + - - +
332A TRP* 3.1 47.1 + - - +
334A GLN* 3.3 19.3 + - - +
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Residues in contact with GLU 146 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
139A GLN* 3.8 23.8 + - - -
142A PHE* 3.9 8.6 - - + -
143A ASN* 2.8 45.2 + - - +
145A ARG* 1.3 73.4 - - - +
147A ALA* 1.3 67.2 + - - +
148A SER 3.2 0.9 + - - -
149A ARG* 3.2 25.2 + - - +
150A VAL* 3.3 18.9 + - - +
182A GLU 5.7 0.3 - - - +
183A LYS* 3.2 25.8 + - - +
184A VAL* 3.7 24.7 + - + +
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Residues in contact with ALA 147 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
142A PHE* 4.2 7.1 - - + +
143A ASN 2.9 17.1 + - - +
144A GLU 4.2 0.4 - - - +
146A GLU* 1.3 76.8 - - - +
148A SER* 1.3 61.0 + - - +
150A VAL* 3.3 1.3 + - - -
151A VAL* 3.1 27.4 + - - +
250A LEU* 4.1 2.2 - - + -
253A MET* 3.4 29.1 - - + +
254A LEU* 3.7 24.5 - - + -
332A TRP* 3.8 11.0 - - + -
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Residues in contact with SER 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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144A GLU 3.0 20.2 + - - -
145A ARG* 3.7 16.3 + - - -
146A GLU 3.2 0.2 - - - -
147A ALA* 1.3 75.5 - - - +
149A ARG* 1.3 61.0 + - - +
151A VAL* 3.2 3.5 + - - +
152A ARG* 2.9 29.0 + - - +
332A TRP* 3.1 40.8 + - - -
333A VAL* 3.8 13.5 + - - +
334A GLN* 5.6 0.2 - - - +
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Residues in contact with ARG 149 (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 ARG* 3.3 30.5 + - - +
146A GLU* 3.2 26.1 + - - +
148A SER* 1.3 77.1 - - - +
150A VAL* 1.3 61.6 + - - +
152A ARG* 3.4 24.4 + - - +
153A ASP* 3.1 30.6 + - - +
183A LYS* 3.2 27.3 - - - +
184A VAL* 4.3 2.2 - - - +
185A SER* 3.0 40.6 + - - +
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Residues in contact with VAL 150 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
132A ILE* 4.1 23.3 - - + -
142A PHE* 4.3 11.9 - - + -
146A GLU 3.3 17.2 + - - +
147A ALA 3.6 7.0 - - - +
148A SER 3.1 0.4 - - - -
149A ARG* 1.3 75.8 - - + +
151A VAL* 1.3 64.4 + - - +
153A ASP* 3.4 1.4 + - - +
154A VAL* 3.1 30.6 + - + +
176A ILE* 4.6 5.6 - - + -
184A VAL* 4.1 22.7 - - + +
185A SER 4.6 2.2 - - - +
187A VAL* 4.1 16.2 - - + -
246A LEU* 6.5 0.2 - - + -
249A VAL* 5.6 0.4 - - + -
253A MET* 3.8 23.3 - - + -
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Residues in contact with VAL 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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147A ALA 3.1 15.4 + - - +
148A SER 3.2 6.9 + - - +
150A VAL* 1.3 77.5 - - - +
152A ARG* 1.3 57.1 - - - +
154A VAL* 3.9 0.7 - - - +
155A ALA* 2.9 29.8 + - - +
246A LEU* 4.4 21.6 - - + +
250A LEU* 3.7 33.9 - - + -
253A MET* 3.9 8.1 - - + -
309A LEU* 4.4 6.5 - - + -
313A LEU* 5.8 0.4 - - + -
327A VAL* 3.8 26.7 - - + -
332A TRP* 4.0 6.7 - - + -
333A VAL* 3.8 12.1 - - + -
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Residues in contact with ARG 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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105A LYS* 6.1 0.4 - - - +
148A SER* 2.9 17.0 + - - +
149A ARG* 3.6 23.4 + - - +
150A VAL 3.3 0.2 - - - -
151A VAL* 1.3 76.1 - - - +
153A ASP* 1.3 88.2 + - - +
155A ALA* 4.7 0.2 - - - -
156A ALA* 3.1 31.0 + - - +
185A SER 6.1 0.6 - - - -
328A LEU* 3.5 14.6 - - + +
333A VAL* 3.6 33.5 + - + +
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Residues in contact with ASP 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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105A LYS* 5.4 4.9 + - - -
106A ASN* 3.5 32.7 + - - +
149A ARG 3.1 15.4 + - - +
150A VAL 3.8 0.2 - - - +
152A ARG* 1.3 105.0 + - - +
154A VAL* 1.3 65.6 + - - +
156A ALA* 3.2 7.2 + - - +
157A ALA 3.1 16.6 + - - -
185A SER 3.1 23.9 - - - +
186A PRO* 3.3 6.5 - - - +
187A VAL* 3.1 29.6 + - + +
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Residues in contact with VAL 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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106A ASN 5.9 0.2 - - - -
150A VAL* 3.1 20.5 + - + +
151A VAL 3.9 2.7 - - - +
153A ASP* 1.3 76.9 - - - +
155A ALA* 1.3 57.6 + - - +
157A ALA* 3.1 8.9 + - - +
158A LEU* 2.8 31.4 + - + +
171A LEU* 3.8 33.9 - - + -
176A ILE* 4.0 25.8 - - + -
187A VAL* 4.1 13.9 - - + +
189A ILE* 4.3 9.9 - - + -
246A LEU* 3.9 18.8 - - + -
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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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151A VAL 2.9 19.8 + - - +
154A VAL* 1.3 73.2 - - - +
156A ALA* 1.3 60.7 + - - +
158A LEU* 4.2 6.5 - - - -
159A ASP* 2.7 33.1 + - - +
246A LEU* 4.3 8.7 - - + +
324A ALA* 3.6 10.3 - - + +
327A VAL* 4.1 21.5 - - + -
328A LEU* 3.6 24.0 - - + -
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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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104A ASN* 4.3 2.8 - - - +
106A ASN* 3.6 17.5 - - - +
152A ARG* 3.1 22.8 + - - +
153A ASP* 3.2 7.4 + - - +
155A ALA* 1.3 76.9 - - - +
157A ALA* 1.3 62.1 + - - +
159A ASP* 3.9 2.6 - - - +
160A PHE* 3.3 21.1 + - - +
328A LEU* 3.8 15.7 - - + +
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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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104A ASN* 4.3 6.7 - - - +
106A ASN* 3.6 34.2 - - + +
107A ILE* 4.0 4.9 - - + -
153A ASP 3.1 5.7 + - - +
154A VAL* 3.1 12.6 + - - +
156A ALA* 1.3 74.3 - - - +
158A LEU* 1.3 66.2 + - - +
160A PHE* 3.0 15.0 + - - +
161A LEU* 3.0 18.4 + - - +
189A ILE* 3.6 20.4 - - + -
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Residues in contact with LEU 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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154A VAL* 2.8 19.0 + - + +
155A ALA* 3.7 4.7 - - - +
157A ALA* 1.3 75.8 - - - +
159A ASP* 1.3 62.3 + - - +
161A LEU* 3.3 17.3 + - + -
162A HIS* 2.8 34.4 + - + +
168A HIS* 4.4 6.1 - - + -
171A LEU* 3.7 27.8 - - + -
189A ILE* 4.5 5.6 - - + -
242A ASP* 3.7 43.5 - - + +
243A LEU* 4.0 18.6 - - + -
246A LEU* 4.1 12.3 - - + -
324A ALA* 3.9 11.2 - - + -
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Residues in contact with ASP 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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155A ALA 2.7 21.2 + - - +
156A ALA* 3.9 5.4 - - - +
158A LEU* 1.3 71.3 - - - +
160A PHE* 1.3 62.6 + - - +
162A HIS* 4.0 3.6 - - - +
163A THR* 2.8 41.3 + - - -
324A ALA* 3.5 10.5 - - + +
325A ALA* 3.8 28.4 + - - +
328A LEU* 3.9 17.6 - - + +
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Residues in contact with PHE 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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100A GLN 3.6 21.1 - - - -
101A CYS* 3.8 26.7 - - - -
104A ASN* 3.8 28.3 - - + +
107A ILE* 3.6 21.1 - - + -
156A ALA 3.3 11.4 + - - +
157A ALA 3.0 7.7 + - - +
159A ASP* 1.3 79.8 - - - +
161A LEU* 1.3 68.1 + - + +
163A THR* 3.6 5.0 + - - -
164A LYS* 3.3 47.6 + - + +
166A ILE* 5.9 0.4 - - + -
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Residues in contact with LEU 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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101A CYS* 3.7 30.3 - - - -
107A ILE* 3.9 12.1 - - + -
157A ALA 3.0 16.1 + - - +
158A LEU* 3.7 17.9 - - + +
160A PHE* 1.3 77.7 - - + +
162A HIS* 1.3 55.9 + - + +
164A LYS* 2.7 27.5 + - - +
165A GLY 3.0 8.7 + - - -
166A ILE* 3.0 35.7 + - + +
167A ALA 4.7 0.4 - - - -
168A HIS* 4.2 20.0 - - + +
189A ILE* 3.9 26.0 - - + -
230A PHE* 4.2 8.5 - - + -
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Residues in contact with HIS 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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158A LEU* 2.8 34.4 + - + +
159A ASP* 4.1 3.6 - - - +
161A LEU* 1.3 73.8 - - + +
163A THR* 1.3 55.5 + - - +
165A GLY* 2.8 19.2 + - - -
166A ILE 3.0 20.4 - - - -
167A ALA* 4.2 0.2 - - - -
239A LYS* 2.9 59.7 + - + +
242A ASP* 2.6 30.6 + - + +
243A LEU* 3.3 23.5 - - + +
324A ALA* 4.5 4.8 - - - +
342A SO4 3.4 24.0 + - - +
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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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159A ASP* 2.8 33.8 + - - -
160A PHE* 3.8 5.8 - - - -
162A HIS* 1.3 76.4 - - - +
164A LYS* 1.3 60.3 + - + +
165A GLY 3.2 0.9 + - - -
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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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100A GLN* 3.8 34.5 + - + +
160A PHE* 3.3 45.0 + - + +
161A LEU 2.7 14.6 + - - +
163A THR* 1.3 76.0 - - + +
165A GLY* 1.3 61.2 + - - +
166A ILE* 3.3 22.5 + - + +
232A ASP* 4.4 5.0 - - - +
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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
------------------------------------------------------------
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