Contacts of the helix formed by residues 226 - 237 (chain C) in PDB entry 6XHU
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 THR 226 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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225C THR* 1.3 83.4 + - - +
227C LEU* 1.3 59.8 + - - +
228C ASN* 3.7 6.1 + - - +
229C ASP* 2.9 29.2 + - + +
230C PHE* 2.8 29.6 + - - +
262C LEU* 4.2 7.9 - - - -
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Residues in contact with LEU 227 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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226C THR* 1.3 74.6 - - - +
228C ASN* 1.3 65.1 + - - +
230C PHE* 3.8 5.9 - - + +
231C ASN* 2.9 38.6 + - - +
242C LEU* 4.0 48.9 - - + +
243C THR* 4.6 1.6 - - - -
244C GLN* 4.6 25.6 - - - +
247C VAL* 4.6 9.2 - - + -
262C LEU* 3.9 23.8 - - + +
265C CYS* 5.2 0.7 - - - -
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Residues in contact with ASN 228 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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226C THR* 3.3 5.5 + - - +
227C LEU* 1.3 81.0 - - - +
229C ASP* 1.3 67.8 + - - +
231C ASN* 3.9 6.3 - - - +
232C LEU* 3.0 24.4 + - - +
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Residues in contact with ASP 229 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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225C THR* 3.4 16.2 + - - +
226C THR* 2.9 24.5 + - + +
228C ASN* 1.3 78.1 - - - +
230C PHE* 1.3 63.8 + - - +
232C LEU* 3.3 13.1 + - - +
233C VAL* 3.3 21.7 + - - +
269C LYS* 3.5 23.0 + - - -
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Residues in contact with PHE 230 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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201C THR* 3.7 22.0 - - + -
205C LEU* 5.6 0.2 - - + -
225C THR* 3.8 12.9 + - + -
226C THR 2.8 18.2 + - - +
227C LEU* 3.8 6.1 - - + +
229C ASP* 1.3 77.4 - - - +
231C ASN* 1.3 72.1 + - - +
233C VAL* 2.8 11.3 + - + +
234C ALA* 2.8 42.5 + - + -
242C LEU* 4.5 13.2 - - + -
262C LEU* 6.1 0.2 - - + -
265C CYS* 3.5 44.0 - - + -
268C LEU* 3.7 32.5 - - + -
269C LYS* 4.1 18.4 - - + -
272C LEU* 4.8 7.2 - - + -
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Residues in contact with ASN 231 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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227C LEU* 2.9 28.9 + - - +
228C ASN* 4.0 6.1 - - - +
230C PHE* 1.3 85.4 - - - +
232C LEU* 1.3 62.4 + - - +
234C ALA* 4.2 3.3 - - - +
235C MET* 3.0 36.5 + - + +
241C PRO* 3.5 16.8 - - + +
242C LEU* 2.9 46.1 + - - +
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Residues in contact with LEU 232 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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228C ASN 3.0 18.1 + - - +
229C ASP* 3.5 15.0 - - - +
230C PHE 3.1 0.2 - - - -
231C ASN* 1.3 77.9 - - - +
233C VAL* 1.3 63.0 + - + +
235C MET* 3.9 10.1 + - - +
236C LYS* 3.7 14.2 + - - +
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Residues in contact with VAL 233 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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229C ASP* 3.3 15.0 + - - +
230C PHE* 2.8 9.4 + - + +
232C LEU* 1.3 79.9 - - + +
234C ALA* 1.3 67.4 + - - +
235C MET 3.2 0.2 - - - -
236C LYS* 2.9 14.9 + - - +
237C TYR* 3.1 39.5 - - + -
269C LYS* 4.2 27.4 - - + +
272C LEU* 4.4 12.3 - - + -
273C GLN* 3.4 30.1 - - + +
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Residues in contact with ALA 234 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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230C PHE* 2.8 42.9 + - + +
231C ASN* 3.9 7.4 - - - +
233C VAL* 1.3 72.3 - - - +
235C MET* 1.3 63.7 + - + +
237C TYR* 3.0 8.8 + - - -
239C TYR* 2.9 48.6 + - + +
240C GLU 4.3 7.0 - - - +
241C PRO* 5.3 0.2 - - + -
272C LEU* 4.5 9.2 - - + -
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Residues in contact with MET 235 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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231C ASN* 3.0 24.2 + - - +
232C LEU* 4.2 10.8 - - + +
233C VAL 3.2 0.2 - - - -
234C ALA* 1.3 77.8 - - + +
236C LYS* 1.3 62.2 + - - +
238C ASN* 3.4 13.9 + - - +
239C TYR 4.2 11.2 - - - +
241C PRO* 5.0 19.3 - - + -
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Residues in contact with LYS 236 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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232C LEU 3.7 9.4 + - - +
233C VAL* 2.9 14.1 + - - +
235C MET* 1.3 80.9 - - - +
237C TYR* 1.3 82.0 + - + +
238C ASN* 3.4 3.2 + - - -
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Residues in contact with TYR 237 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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199C THR* 5.1 0.5 + - - -
233C VAL* 3.1 34.3 - - + -
234C ALA 3.0 6.8 + - - +
236C LYS* 1.3 104.5 + - + +
238C ASN* 1.3 70.0 + - - +
239C TYR* 3.3 24.4 + - + -
272C LEU* 3.7 35.7 - - + -
273C GLN* 3.8 24.4 + - + +
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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