Contacts of the helix formed by residues 338 - 346 (chain G) in PDB entry 2VUU
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 VAL 338 (chain G).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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329G ARG* 2.9 46.7 - - - +
333G GLU 4.6 0.4 - - - +
334G TYR* 2.6 43.4 + - + +
337G GLU* 1.3 77.9 - - + +
339G PHE* 1.3 68.0 + - - +
340G PRO* 3.2 2.7 - - - -
341G ILE* 2.8 18.4 + - + +
342G GLU* 2.9 29.5 + - + +
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Residues in contact with PHE 339 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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157G PHE* 3.7 18.6 - - + -
158G THR* 3.9 5.2 - - - -
159G SER 4.4 0.4 - - - -
167G MET* 4.0 25.8 - - + -
175G PHE* 4.7 3.6 - + - -
232G PHE* 3.8 18.6 - + - -
236G LEU* 3.6 34.8 - - + -
334G TYR* 2.8 32.9 + + + +
335G ALA* 3.0 24.7 - - - +
338G VAL* 1.3 73.5 - - - +
340G PRO* 1.3 54.7 - - - +
342G GLU* 3.1 5.8 + - - +
343G GLU* 2.8 59.2 + - - +
350G TRP* 3.6 21.1 - + - -
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Residues in contact with PRO 340 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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236G LEU* 3.8 16.8 - - + -
335G ALA 2.7 26.9 - - - +
336G ARG* 3.3 22.2 - - - +
337G GLU 4.4 0.2 - - - -
338G VAL 3.4 3.1 - - - -
339G PHE* 1.3 81.4 - - + +
341G ILE* 1.3 62.1 + - + +
343G GLU* 3.1 4.6 - - + +
344G GLU* 2.9 10.7 + - - +
350G TRP* 4.5 5.4 - - + -
351G MET* 2.9 48.5 - - + +
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Residues in contact with ILE 341 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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337G GLU 3.6 20.6 - - - +
338G VAL* 2.8 11.3 + - + +
340G PRO* 1.3 73.4 - - + +
342G GLU* 1.3 70.3 + - - +
344G GLU* 3.3 19.0 + - - +
345G ALA* 3.1 22.6 + - + +
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Residues in contact with GLU 342 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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155G ASN* 3.5 29.3 + - - +
157G PHE 4.3 4.3 - - - +
193G GLU* 5.1 5.7 - - - +
334G TYR* 2.3 36.2 + - - -
338G VAL* 2.9 26.4 + - + +
339G PHE* 3.2 9.0 - - + +
341G ILE* 1.3 79.2 - - - +
343G GLU* 1.3 67.1 + - + +
345G ALA* 3.2 12.1 + - - +
346G ASN* 3.0 23.1 + - - +
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Residues in contact with GLU 343 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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157G PHE 4.6 0.7 - - - +
158G THR* 3.4 16.6 + - - -
159G SER* 2.7 44.7 + - - -
339G PHE* 2.8 41.4 + - + +
340G PRO 3.1 7.9 - - - +
342G GLU* 1.3 76.5 - - - +
344G GLU* 1.3 55.6 + - - +
346G ASN* 2.7 35.4 + - - +
347G GLY 3.3 4.2 + - - -
348G LEU* 3.0 19.1 + - + +
350G TRP* 3.1 24.7 + - + +
351G MET* 3.3 12.1 - - + -
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Residues in contact with GLU 344 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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340G PRO 2.9 6.5 + - - +
341G ILE* 3.3 23.6 + - - +
343G GLU* 1.3 76.9 - - - +
345G ALA* 1.3 56.7 + - - +
347G GLY* 3.1 17.8 + - - -
348G LEU 3.3 18.1 + - - +
351G MET* 3.2 19.2 - - + +
352G LEU* 4.5 22.5 - - + +
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Residues in contact with ALA 345 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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341G ILE* 3.1 14.7 + - + +
342G GLU* 3.6 9.9 - - - +
344G GLU* 1.3 72.3 - - - +
346G ASN* 1.3 61.4 + - - +
347G GLY* 3.1 5.9 + - - -
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Residues in contact with ASN 346 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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158G THR* 4.3 14.8 + - - -
160G LEU* 3.9 29.6 - - + +
342G GLU* 3.0 30.2 + - - +
343G GLU* 2.7 14.7 + - - +
345G ALA* 1.3 79.1 - - - +
347G GLY* 1.3 56.8 + - - +
348G LEU* 4.2 8.6 - - + +
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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