Contacts of the helix formed by residues 476 - 480 (chain C) in PDB entry 1OVM
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 GLN 476 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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473C GLY* 2.9 31.6 + - - +
474C ALA 3.4 0.9 - - - +
475C GLU* 1.3 83.5 - - - +
477C ARG* 1.3 67.6 + - - +
478C TYR* 3.2 29.7 - - + +
479C ASN* 3.1 18.9 + - - +
480C ASP* 4.2 7.1 + - - +
36D ASP* 2.8 29.8 + - - +
39D ILE* 4.1 19.8 - - - +
40D ASP* 5.3 3.4 + - - -
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Residues in contact with ARG 477 (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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475C GLU 3.8 2.4 + - - -
476C GLN* 1.3 73.6 + - - +
478C TYR* 1.3 56.9 + - - +
479C ASN 3.1 0.2 - - - -
480C ASP* 3.0 39.7 + - + +
39D ILE* 4.0 24.2 - - + +
45D CYS* 4.3 9.6 - - - +
46D TRP* 3.2 59.1 + - + +
48D GLY 5.4 1.0 - - - +
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Residues in contact with TYR 478 (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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465C TYR* 3.8 4.7 - - - -
472C HIS* 3.2 21.4 + - - -
473C GLY* 3.6 6.2 - - - -
476C GLN* 3.4 17.5 - - + -
477C ARG* 1.3 77.7 - - - +
479C ASN* 1.3 87.3 + - - +
480C ASP 3.3 5.5 + - - +
27D PRO* 3.4 26.4 - - + +
32D LEU* 3.6 23.1 + - + -
35D LEU* 3.5 42.8 - - + -
36D ASP* 3.0 26.0 + - - -
39D ILE* 3.4 25.0 - - + +
46D TRP* 3.6 30.4 + - + +
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Residues in contact with ASN 479 (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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464C GLY* 3.7 0.5 - - - -
465C TYR* 3.2 32.0 + - - +
468C GLU* 3.0 31.2 - - - +
469C ARG* 3.2 38.1 + - + +
472C HIS 3.3 16.8 + - - -
473C GLY 2.8 27.7 + - - +
476C GLN 3.1 6.5 + - - +
477C ARG 3.1 1.2 - - - -
478C TYR* 1.3 94.0 - - - +
480C ASP* 1.3 63.0 + - - +
27D PRO* 4.7 2.8 - - - +
32D LEU* 4.9 0.3 - - - +
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Residues in contact with ASP 480 (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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463C GLU 4.7 3.3 - - - +
465C TYR* 4.3 1.6 + - - -
469C ARG* 2.3 36.5 + - - +
476C GLN 4.2 3.2 - - - +
477C ARG* 3.0 33.2 + - + +
478C TYR 4.0 7.1 - - - +
479C ASN* 1.3 80.5 - - - +
481C ILE* 1.3 72.2 + - - +
532C LYS* 4.5 5.3 + - - -
450D ARG* 5.3 3.3 + - - -
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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