Contacts of the helix formed by residues 469 - 476 (chain B) in PDB entry 2VF8
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 PRO 469 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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10B PHE* 4.6 7.6 - - + -
448B ASP 3.7 10.3 - - - +
449B TRP* 3.4 24.4 - - + -
466B TYR* 2.5 32.8 + - - +
468B GLY* 1.3 82.0 - - - +
470B PRO* 1.4 73.5 - - + +
471B GLU* 5.1 2.2 - - + +
472B GLY 3.3 2.6 + - - +
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Residues in contact with PRO 470 (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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444B ILE 4.0 12.8 - - - +
445B ARG* 4.7 12.6 - - + +
447B ALA* 3.7 20.4 - - + +
448B ASP 3.7 16.8 - - - +
449B TRP 4.1 2.0 - - - +
450B LEU* 3.6 29.7 - - + +
468B GLY 4.0 3.1 - - - +
469B PRO* 1.4 79.4 - - + +
471B GLU* 1.3 72.1 + - + +
472B GLY 2.5 4.8 + - - -
473B LEU* 2.9 18.2 + - - +
485B LEU* 5.2 3.9 - - + +
486B PHE* 4.1 6.3 - - - -
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Residues in contact with GLU 471 (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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469B PRO* 3.9 2.6 + - + +
470B PRO* 1.3 77.0 - - + +
472B GLY* 1.3 54.3 + - - +
474B LYS* 2.9 61.4 + - - +
486B PHE* 3.8 14.9 - - - -
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Residues in contact with GLY 472 (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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466B TYR* 2.9 31.5 - - - -
469B PRO* 3.3 4.6 + - - +
470B PRO 2.5 11.3 + - - -
471B GLU* 1.3 64.8 - - - +
473B LEU* 1.3 60.8 + - - -
474B LYS 2.8 7.0 + - - -
475B HIS* 3.0 24.3 + - - +
476B VAL* 3.8 3.1 - - - +
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Residues in contact with LEU 473 (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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450B LEU* 3.8 15.9 - - + -
452B ASP* 3.6 16.8 - - + +
466B TYR* 3.7 25.6 - - + -
470B PRO 2.9 15.2 + - - +
472B GLY* 1.3 70.8 - - - -
474B LYS* 1.3 63.5 + - - +
475B HIS 2.8 2.1 + - - -
476B VAL* 2.9 42.4 + - + +
479B SER* 3.2 31.0 - - - +
481B THR* 3.6 20.6 - - - +
482B GLY* 3.8 10.2 - - - +
485B LEU* 5.0 4.5 - - + -
486B PHE* 4.0 12.6 - - + -
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Residues in contact with LYS 474 (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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471B GLU* 2.9 62.3 + - - +
472B GLY 4.1 0.2 - - - +
473B LEU* 1.3 75.5 - - - +
475B HIS* 1.3 79.4 + - + +
476B VAL 3.7 0.9 + - - -
486B PHE* 3.4 36.0 - - + -
1850B SO4 3.3 38.6 + - - +
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Residues in contact with HIS 475 (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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472B GLY* 3.0 15.3 + - - +
473B LEU 2.8 1.2 + - - -
474B LYS* 1.3 100.7 - - + +
476B VAL* 1.3 63.1 + - + +
477B PRO* 3.2 13.5 - - - +
1850B SO4 2.7 37.6 + - - -
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Residues in contact with VAL 476 (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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465B LEU* 3.5 35.7 - - + +
466B TYR* 3.5 21.1 - - + -
472B GLY 3.8 3.8 - - - +
473B LEU* 2.9 38.1 + - + +
474B LYS 3.5 2.0 + - - -
475B HIS* 1.3 77.5 - - - +
477B PRO* 1.3 72.3 - - + -
478B GLU* 2.7 13.1 + - - +
479B SER* 2.8 20.0 + - - +
482B GLY* 5.7 0.3 - - - -
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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