Contacts of the helix formed by residues 473 - 482 (chain B) in PDB entry 2QFZ
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 473 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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410B HIS* 4.7 1.8 - - - -
471B GLU* 3.8 2.1 - - - +
472B LYS* 1.3 77.5 - - - +
474B PHE* 1.3 64.4 + - - +
475B GLN* 4.2 4.3 - - + +
476B GLU* 4.2 28.2 + - + +
477B LEU* 3.1 26.9 + - - +
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Residues in contact with PHE 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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410B HIS* 3.0 31.2 - - + +
411B GLU* 4.0 15.9 - - + -
412B VAL* 4.0 6.4 - - + +
472B LYS 4.1 1.8 + - - -
473B ASP* 1.3 72.9 - - - +
475B GLN* 1.3 56.7 + - - +
477B LEU* 3.8 4.7 - - - +
478B LEU* 3.0 29.1 + - + +
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Residues in contact with GLN 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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475A GLN* 6.1 2.9 - - - +
473B ASP* 3.2 4.8 - - + +
474B PHE* 1.3 79.4 - - - +
476B GLU* 1.3 63.7 + - + +
478B LEU* 4.0 4.2 - - - +
479B LEU* 3.2 28.2 + - + +
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Residues in contact with GLU 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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471B GLU* 3.6 23.2 - - + +
473B ASP* 3.8 17.2 + - + +
475B GLN* 1.3 77.4 - - + +
477B LEU* 1.3 60.5 + - - +
479B LEU* 3.7 11.9 - - + +
480B PHE* 2.9 32.4 + - - +
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Residues in contact with LEU 477 (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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406B HIS* 4.2 15.3 - - + +
407B LEU* 4.5 7.4 - - + -
410B HIS* 3.6 34.1 - - + -
412B VAL* 3.8 17.0 - - + -
468B ILE* 3.8 39.7 - - + +
471B GLU* 3.6 16.4 - - + +
473B ASP 3.1 19.3 + - - +
474B PHE 3.8 2.5 - - - +
476B GLU* 1.3 77.2 - - - +
478B LEU* 1.3 62.8 + - - +
480B PHE* 3.4 6.2 + - + +
481B LEU* 3.1 39.4 + - + +
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Residues in contact with LEU 478 (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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412B VAL* 4.0 22.6 - - + +
416B GLN* 4.0 49.6 - - + +
417B PHE* 4.1 11.4 - - + -
474B PHE* 3.0 20.1 + - + +
475B GLN* 4.3 4.0 - - - +
476B GLU 3.4 0.2 - - - -
477B LEU* 1.3 75.0 - - - +
479B LEU* 1.3 63.1 + - - +
481B LEU* 3.3 5.1 + - + +
482B GLN* 3.1 46.9 + - - +
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Residues in contact with LEU 479 (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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475A GLN* 6.2 1.8 - - - +
475B GLN* 3.2 22.3 + - + +
476B GLU* 3.7 12.1 - - + +
477B LEU 3.3 0.2 - - - -
478B LEU* 1.3 76.6 - - - +
480B PHE* 1.3 62.8 + - - +
482B GLN* 3.2 10.2 + - - +
483B ASN* 2.6 48.9 + - + +
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Residues in contact with PHE 480 (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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464B TRP* 4.0 14.6 - + + -
467B GLU* 3.3 42.0 - - + -
468B ILE* 4.3 13.7 - - + -
471B GLU* 5.8 3.8 - - + -
476B GLU 2.9 19.5 + - - +
477B LEU* 3.7 7.0 - - + +
479B LEU* 1.3 77.4 - - - +
481B LEU* 1.3 67.6 + - + +
483B ASN* 2.9 33.2 + - - +
484B LEU* 3.4 26.8 + - + +
485B PRO* 3.8 28.5 - - + -
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Residues in contact with LEU 481 (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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407B LEU* 3.8 20.4 - - + -
412B VAL* 4.2 7.9 - - + -
417B PHE* 3.6 45.9 - - + +
421B TRP* 4.1 16.8 + - + -
429B GLU* 4.5 1.6 - - - +
461B LEU* 3.8 13.0 - - + -
464B TRP* 5.7 0.9 - - + -
468B ILE* 3.7 31.0 - - + -
477B LEU* 3.1 26.8 + - + +
478B LEU* 3.3 9.2 + - - +
480B PHE* 1.3 81.9 - - + +
482B GLN* 1.3 58.6 + - - +
483B ASN 3.6 0.5 + - - -
484B LEU* 3.7 26.3 - - + +
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Residues in contact with GLN 482 (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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416A GLN* 5.3 8.1 - - - +
416B GLN 3.3 20.8 + - - -
417B PHE* 4.5 9.6 - - + +
420B ARG* 3.1 35.9 + - - +
421B TRP* 5.9 0.2 - - - +
429B GLU* 4.5 2.0 - - - +
478B LEU* 3.1 38.2 + - + +
479B LEU* 3.6 11.3 + - - +
480B PHE 3.1 0.4 - - - -
481B LEU* 1.3 77.1 - - - +
483B ASN* 1.3 76.1 + - - +
484B LEU 3.9 1.1 - - - -
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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