Contacts of the helix formed by residues 157 - 172 (chain B) in PDB entry 1XJP
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 157 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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155B SER* 3.1 10.5 + - - +
156B LEU* 1.3 76.4 - - - +
158B TYR* 1.3 66.1 + - - +
159B ASN* 2.7 23.2 + - - +
160B GLU* 2.5 40.9 + - + +
161B ARG* 3.1 23.5 + - - +
252B TYR* 4.5 0.4 - - - -
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Residues in contact with TYR 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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156B LEU 3.7 4.8 + - - -
157B ASP* 1.3 71.7 + - - +
159B ASN* 1.3 70.9 + - - +
161B ARG 3.5 0.2 + - - -
162B LEU* 3.0 43.2 + - + +
252B TYR* 4.0 11.9 - + + -
255B TYR* 3.5 74.0 + + + +
263B PRO* 4.8 2.1 - - + +
265B HIS* 3.2 38.4 - + - -
266B LEU* 3.8 24.0 - - + -
490B PRO* 5.0 1.2 - - - +
612B PRO* 3.6 25.8 - - - +
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Residues in contact with ASN 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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157B ASP* 2.7 17.5 + - - +
158B TYR* 1.3 83.9 - - - +
160B GLU* 1.3 60.4 + - - +
162B LEU* 3.6 11.0 - - + +
163B TRP* 2.8 29.6 + - - +
255B TYR* 4.2 13.1 + - - -
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Residues in contact with GLU 160 (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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151B ILE* 3.9 29.1 - - + +
155B SER* 2.8 27.4 + - - -
157B ASP* 2.5 29.3 + - - +
159B ASN* 1.3 71.5 - - - +
161B ARG* 1.3 62.9 + - - +
163B TRP* 3.2 14.0 + - + +
164B ALA* 3.0 23.7 + - - +
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Residues in contact with ARG 161 (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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151B ILE* 3.5 7.7 + - + +
152B MET* 2.7 61.7 + - - +
153B ALA 4.5 1.4 - - - -
154B ASN 4.5 1.0 - - - +
155B SER* 3.0 36.7 + - - +
157B ASP 3.1 19.3 + - - +
158B TYR 3.9 3.4 - - - +
160B GLU* 1.3 75.8 - - - +
162B LEU* 1.3 56.9 + - - +
164B ALA 3.4 0.3 + - - -
165B TRP* 2.9 31.0 + - - +
252B TYR* 3.4 23.0 + - - -
265B HIS* 2.7 36.7 + - + +
266B LEU* 3.7 13.4 - - - +
267B LEU 3.8 1.4 - - - +
268B GLY* 3.2 22.9 - - - +
269B ASP 4.3 0.2 - - - +
278B LEU* 6.3 0.2 - - - -
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Residues in contact with LEU 162 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
158B TYR* 3.0 34.9 + - + +
159B ASN* 3.6 10.8 - - - +
161B ARG* 1.3 73.6 - - - +
163B TRP* 1.3 69.3 + - - +
165B TRP* 3.4 2.0 + - + -
166B GLU* 3.0 28.3 + - + +
265B HIS* 3.4 13.6 - - + +
490B PRO* 3.3 39.0 - - + +
491B VAL* 4.2 18.8 - - + -
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Residues in contact with TRP 163 (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* 3.7 28.7 - - + -
133B CYS 3.5 25.0 + - - -
134B ASN* 4.0 10.8 - - + -
135B PRO* 3.7 31.1 - - + +
142B LEU* 4.0 15.5 - - + -
148B LEU* 4.3 5.8 - - + -
151B ILE* 4.1 23.6 - - + -
159B ASN 2.8 13.6 + - - +
160B GLU* 3.4 20.4 - - + +
162B LEU* 1.3 79.4 - - - +
164B ALA* 1.3 67.0 + - + +
166B GLU* 4.4 1.6 - - - +
167B SER* 2.5 60.3 + - - -
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Residues in contact with ALA 164 (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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148B LEU* 4.1 23.5 - - + +
151B ILE* 4.2 11.4 - - + -
152B MET* 3.9 16.4 - - + -
160B GLU 3.0 15.8 + - - +
161B ARG 3.9 3.6 - - - +
162B LEU 3.3 0.2 - - - -
163B TRP* 1.3 90.2 - - + +
165B TRP* 1.3 64.7 + - - +
167B SER* 4.0 2.0 - - - -
168B TRP* 3.1 26.3 + - - +
270B MET* 3.7 4.3 - - - +
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Residues in contact with TRP 165 (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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152B MET* 4.2 7.5 - - + -
161B ARG 2.9 18.5 + - - +
162B LEU* 3.8 2.7 - - + +
164B ALA* 1.3 78.4 - - - +
166B GLU* 1.3 87.3 + - + +
168B TRP* 3.5 0.9 + - - +
169B ARG* 3.2 69.1 + - - +
264B ALA* 3.6 32.3 + - + +
265B HIS* 3.6 26.5 - - + -
270B MET* 3.5 20.5 + - - -
271B TRP* 5.1 1.4 + - - +
478B TRP* 3.6 22.0 - + - -
489B GLU* 3.9 3.1 - - + -
490B PRO* 3.3 31.0 - - + -
491B VAL* 4.6 2.2 - - + -
493B HIS* 3.4 33.0 - + - -
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Residues in contact with GLU 166 (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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162B LEU* 3.0 15.9 + - + +
163B TRP* 4.4 2.2 - - - +
165B TRP* 1.3 84.7 - - + +
167B SER* 1.3 56.5 + - - +
169B ARG* 3.3 1.8 + - - -
170B SER* 2.6 46.0 + - - -
491B VAL* 3.6 25.6 - - + +
493B HIS* 2.6 30.9 + - - -
497B TYR* 2.5 30.4 + - - -
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Residues in contact with SER 167 (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* 3.5 24.4 - - - +
163B TRP* 2.5 49.4 + - - -
164B ALA 4.0 2.5 - - - -
166B GLU* 1.3 75.2 - - - +
168B TRP* 1.3 60.1 + - - +
170B SER* 4.3 2.5 - - - -
171B GLU* 2.7 49.4 + - - +
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Residues in contact with TRP 168 (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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126B ILE 4.8 0.2 - - - -
127B TYR* 3.6 36.6 - + - -
130B GLY 3.8 16.6 - - - -
131B LYS* 4.8 0.9 - - - -
132B VAL* 3.8 6.4 - - + +
144B LEU* 3.7 38.4 - - + +
148B LEU* 3.7 18.4 - - + -
164B ALA 3.1 19.0 + - - +
165B TRP 3.6 3.4 - - - +
167B SER* 1.3 74.6 - - - +
169B ARG* 1.3 64.8 + - - +
172B VAL* 3.0 70.2 + - + +
270B MET* 3.5 34.1 - - + +
271B TRP* 4.4 0.6 - - - +
502B SER* 3.1 40.6 + - - -
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Residues in contact with ARG 169 (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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165B TRP* 3.2 77.2 + - - +
166B GLU 3.9 5.2 - - - +
167B SER 3.2 0.4 - - - -
168B TRP* 1.3 80.6 - - + +
170B SER* 1.3 60.1 + - - +
173B GLY* 3.4 7.9 + - - +
174B LYS 3.3 20.1 + - - -
270B MET* 2.9 34.1 + - - +
271B TRP* 3.2 25.7 - - - +
478B TRP* 5.0 1.6 - - - -
493B HIS* 4.1 3.4 - - - +
497B TYR* 3.7 15.7 - - + +
499B ASP* 3.3 36.7 + - - +
502B SER* 3.9 20.8 + - - +
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Residues in contact with SER 170 (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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166B GLU* 2.6 40.1 + - - -
167B SER* 3.2 4.0 + - - -
169B ARG* 1.3 75.6 - - - +
171B GLU* 1.3 72.2 + - - +
174B LYS* 3.3 40.2 + - - +
497B TYR* 3.9 8.2 + - - -
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Residues in contact with GLU 171 (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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131B LYS 4.4 12.8 - - - +
132B VAL* 4.3 15.5 - - + +
133B CYS 5.6 0.3 + - - -
167B SER* 2.7 41.5 + - - +
170B SER* 1.3 86.6 + - - +
172B VAL* 1.3 62.5 + - + +
174B LYS* 4.9 0.7 - - - +
175B GLN* 3.1 27.5 + - - +
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Residues in contact with VAL 172 (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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126B ILE* 3.5 22.5 - - + +
130B GLY* 3.9 24.0 - - - -
131B LYS 4.2 4.3 - - - +
168B TRP* 3.0 68.6 + - + +
171B GLU* 1.3 82.8 - - + +
173B GLY* 1.3 77.0 + - - +
174B LYS 3.1 2.0 - - - -
175B GLN* 2.8 24.4 + - - +
176B LEU* 3.2 10.5 + - + +
502B SER* 5.1 1.8 - - - -
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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