Contacts of the helix formed by residues 4964 - 4968 (chain F) in PDB entry 6X34
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 ASP4964 (chain F).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4953F GLU 5.2 3.1 - - - +
4961F ILE* 6.1 2.0 - - - -
4962F GLY 3.6 1.0 - - - -
4963F SER* 1.3 87.0 - - - +
4965F TYR* 1.3 58.3 + - - +
4966F PHE* 3.1 16.7 + - + +
4967F ASP* 4.0 10.6 + - - +
4973F PHE* 4.3 22.4 - - + +
4976F HIS* 4.4 12.8 - - + -
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Residues in contact with TYR4965 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
4961F ILE* 6.3 0.7 - - - -
4964F ASP* 1.3 69.9 - - - +
4966F PHE* 1.3 58.2 + - - +
4967F ASP* 3.1 6.1 - - - -
4968F THR* 2.9 29.3 + - - +
4969F THR 3.4 0.9 + - - -
4972F ARG* 3.3 32.5 + - + +
4976F HIS* 3.7 26.2 + - + +
5025F CYS* 5.3 5.2 - - + -
5026F PHE* 4.8 10.3 - - + -
5027F ARG* 5.6 5.6 - - + -
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Residues in contact with PHE4966 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4964F ASP* 3.1 8.4 - - + -
4965F TYR* 1.3 75.3 - - - +
4967F ASP* 1.3 62.3 + - - +
4968F THR 3.2 0.6 - - - -
4969F THR 2.9 23.0 - - - +
4970F PRO* 4.7 3.9 - - - +
4972F ARG 3.9 2.4 + - - -
4973F PHE* 3.7 37.2 - - + +
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Residues in contact with ASP4967 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4964F ASP 4.0 8.7 + - - +
4965F TYR* 3.1 1.4 - - - -
4966F PHE* 1.3 78.9 - - - +
4968F THR* 1.3 61.9 + - + +
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Residues in contact with THR4968 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4965F TYR* 2.9 22.0 + - - +
4966F PHE 4.3 0.2 - - - -
4967F ASP* 1.3 84.2 - - + +
4969F THR* 1.3 61.1 + - - +
4970F PRO* 4.3 2.6 - - - +
4972F ARG* 5.2 0.2 - - - +
5027F ARG* 4.7 15.5 - - + +
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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