Contacts of the helix formed by residues 215 - 224 (chain A) in PDB entry 3L6B
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 215 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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210A GLU* 3.4 12.3 - - - +
211A PRO 3.6 6.1 - - - +
212A SER* 3.5 23.7 - - - +
213A ASN 3.9 0.2 - - - -
214A ALA* 1.3 70.8 - - - +
216A ASP* 1.3 59.0 + - - +
217A CYS 3.3 3.1 - - - -
218A TYR* 3.3 6.1 + - + -
219A GLN* 2.9 56.4 + - - +
229A ASN* 3.7 4.6 + - - +
261A THR* 4.2 11.3 - - + +
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Residues in contact with ASP 216 (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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214A ALA 3.0 1.4 - - - +
215A ASP* 1.3 74.7 - - - +
217A CYS* 1.3 57.2 + - - +
219A GLN* 4.4 3.8 - - - -
220A SER* 2.7 39.5 + - - +
227A MET 3.2 21.9 - - - +
228A PRO* 4.1 1.8 - - + -
229A ASN* 3.1 35.0 - - - +
243A SER* 3.2 5.5 - - - -
244A ILE* 2.9 36.3 + - + +
347A MN 2.1 33.1 + - - -
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Residues in contact with CYS 217 (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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184A VAL* 4.0 22.0 - - + -
190A LEU* 4.4 3.1 - - - -
210A GLU* 2.8 26.7 + - - +
216A ASP* 1.3 73.8 - - - +
218A TYR* 1.3 64.5 + - - +
220A SER* 3.3 1.6 + - - -
221A LYS* 3.0 21.9 + - - +
244A ILE* 4.0 30.5 - - + -
252A ILE* 3.8 23.1 - - - -
259A ILE* 3.3 28.1 - - + +
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Residues in contact with TYR 218 (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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210A GLU* 2.8 17.2 + - - +
215A ASP* 3.5 6.7 - - - +
217A CYS* 1.3 78.0 - - - +
219A GLN* 1.3 82.8 + - - +
221A LYS* 3.4 2.3 + - - +
222A LEU* 3.0 57.4 + - + +
258A ASP* 5.7 1.6 - - - -
259A ILE* 3.7 36.9 - - + +
261A THR* 3.6 32.1 - - + -
297A HIS* 6.5 0.7 - + - -
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Residues in contact with GLN 219 (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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215A ASP* 2.9 48.9 + - - +
216A ASP* 3.9 5.8 - - - +
218A TYR* 1.3 94.4 - - - +
220A SER* 1.3 56.3 + - - +
222A LEU* 3.3 10.1 + - - +
223A LYS* 2.9 63.4 + - - +
227A MET* 4.4 13.2 - - + +
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Residues in contact with SER 220 (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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216A ASP 2.7 26.3 + - - -
217A CYS 3.6 4.3 - - - -
219A GLN* 1.3 74.4 - - - +
221A LYS* 1.3 56.2 + - - +
223A LYS 3.3 0.2 + - - -
224A GLY 2.8 26.2 + - - -
225A LYS 3.1 24.9 + - - -
226A LEU* 3.6 2.6 - - - +
227A MET* 2.8 25.4 + - - +
244A ILE* 3.7 14.9 - - - +
249A TRP* 3.3 20.4 - - - -
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Residues in contact with LYS 221 (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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217A CYS 3.0 11.7 + - - +
218A TYR* 3.8 2.9 - - + +
220A SER* 1.3 76.1 - - - +
222A LEU* 1.3 63.8 + - - +
223A LYS 3.5 0.2 + - - -
224A GLY* 3.6 7.4 + - - -
249A TRP* 3.9 11.2 - - + -
252A ILE* 3.0 21.7 + - + +
253A ARG* 2.9 35.8 + - + -
256A VAL* 2.9 32.0 + - - -
257A ASP 5.2 3.3 - - - -
258A ASP* 5.5 1.3 - - - +
259A ILE* 3.0 36.3 - - + -
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Residues in contact with LEU 222 (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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218A TYR* 3.0 57.5 + - + +
219A GLN* 3.6 14.8 - - - +
221A LYS* 1.3 78.2 - - - +
223A LYS* 1.3 64.5 + - + +
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Residues in contact with LYS 223 (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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219A GLN* 2.9 44.4 + - - +
220A SER 4.3 0.9 - - - +
222A LEU* 1.3 81.1 - - + +
224A GLY* 1.3 61.3 + - - +
225A LYS* 3.3 22.4 + - + +
227A MET* 3.6 39.3 - - + -
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Residues in contact with GLY 224 (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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220A SER 2.8 8.7 + - - -
221A LYS 3.6 7.0 + - - -
222A LEU 3.4 2.8 - - - -
223A LYS* 1.3 77.7 - - - +
225A LYS* 1.3 60.5 + - - +
249A TRP* 3.6 16.0 + - - -
253A ARG* 4.8 9.1 - - - -
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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