Contacts of the helix formed by residues 1035 - 1038 (chain G) in PDB entry 6C3P
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 LYS1035 (chain G).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1031G TYR* 4.3 14.6 - - + +
1032G TRP* 3.0 46.9 + - + +
1034G ALA* 1.3 75.8 - - + +
1036G TRP* 1.3 56.8 + - - +
1037G THR 3.5 0.2 - - - -
1038G ASP* 2.8 23.7 - - - +
1063G TYR* 5.2 19.5 - - + -
1279G LEU* 6.2 2.0 - - + -
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Residues in contact with TRP1036 (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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559G PHE* 6.0 4.7 + - - +
563G VAL* 6.3 2.9 - - + -
576G ALA* 5.6 5.3 - - + +
1032G TRP* 3.3 6.7 + + + +
1033G LEU* 2.7 45.0 + - + +
1035G LYS* 1.3 76.8 - - - +
1037G THR* 1.3 57.9 + - + -
1038G ASP 3.1 15.7 + - - +
1061G THR* 3.9 15.9 - - - -
1063G TYR* 3.3 30.1 - + + -
1064G ALA* 3.3 44.4 - - + -
1067G PHE* 5.8 6.7 - + + -
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Residues in contact with THR1037 (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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573G PRO* 3.4 50.9 - - - +
576G ALA* 5.0 9.9 - - + -
577G PHE* 5.4 5.6 - - + -
1033G LEU* 3.7 15.3 - - + +
1034G ALA* 2.9 18.8 + - - -
1036G TRP* 1.3 82.7 - - + +
1038G ASP* 1.3 58.3 + - - +
1278G GLY* 4.3 16.1 + - - -
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Residues in contact with ASP1038 (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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1034G ALA 4.5 6.4 - - - +
1035G LYS* 2.8 28.1 - - - +
1036G TRP 3.1 8.1 - - - +
1037G THR* 1.3 78.8 - - - +
1276G SER* 4.6 16.2 - - - -
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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
------------------------------------------------------------
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