Contacts of the helix formed by residues 700 - 704 (chain H) in PDB entry 2W3S
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 ALA 700 (chain H).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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130G ALA* 4.7 10.3 - - - +
133G LEU* 4.5 7.9 - - + -
139G TYR* 4.0 7.7 - - - -
356G ARG* 3.7 33.0 - - + +
358G ASP* 4.9 14.4 - - + +
359G GLN* 5.8 0.2 - - + -
698H ILE 2.9 4.6 + - - -
699H PRO* 1.3 74.0 - - - +
701H PHE* 1.3 56.1 + - - +
702H SER* 3.3 2.9 - - - +
703H ASP* 2.6 42.8 + - - +
704H ARG 4.0 1.0 + - - -
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Residues in contact with PHE 701 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
110G PHE* 4.1 8.7 - + - -
125G TYR* 4.9 3.4 - - + -
126G ASP* 3.3 20.6 - - - +
129G LEU* 3.6 58.1 - - + +
130G ALA* 4.4 5.6 + - - +
132G ASN 5.2 1.4 + - - -
139G TYR* 3.4 54.0 - + + +
142G ILE* 4.1 6.7 - - + -
143G LEU* 4.1 21.3 - - + -
700H ALA* 1.3 72.5 - - - +
702H SER* 1.3 53.2 + - - +
703H ASP 2.8 2.4 + - - -
704H ARG* 2.7 79.8 + - - +
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Residues in contact with SER 702 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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126G ASP* 3.8 17.2 + - - -
130G ALA* 5.9 0.2 - - - +
357G PHE* 5.5 1.6 - - - +
358G ASP* 2.8 35.0 + - - +
641H ARG* 3.6 15.4 + - - +
700H ALA* 3.0 3.2 + - - +
701H PHE* 1.3 75.4 - - - +
703H ASP* 1.3 65.8 + - - +
704H ARG* 3.5 3.9 - - - +
706H ARG* 3.2 32.2 + - - +
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Residues in contact with ASP 703 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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356G ARG* 3.5 21.5 - - - +
357G PHE* 4.9 14.4 + - - +
358G ASP 5.7 0.3 + - - -
641H ARG* 6.0 3.4 - - - +
642H ILE* 4.4 18.2 + - - +
669H VAL* 6.0 0.9 - - - -
677H THR* 5.0 8.3 - - - +
699H PRO* 3.5 16.8 - - + +
700H ALA* 2.6 44.4 + - - +
702H SER* 1.3 77.5 + - - +
704H ARG* 1.3 68.1 + - - +
705H PRO* 3.5 3.5 - - - +
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Residues in contact with ARG 704 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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126G ASP* 2.4 32.0 + - - -
138G GLY 3.8 18.2 - - - +
139G TYR* 4.0 19.3 - - + -
140G ALA* 4.1 14.5 - - - +
143G LEU* 3.2 32.1 - - - +
641H ARG* 5.4 0.2 + - - -
642H ILE 4.1 2.1 - - - +
669H VAL* 5.0 7.8 - - - +
700H ALA 4.0 0.8 + - - -
701H PHE* 2.7 40.9 + - - +
702H SER 4.2 4.2 - - - +
703H ASP* 1.3 82.6 - - - +
705H PRO* 1.3 85.1 + - + +
706H ARG* 3.0 39.6 + - - +
708H PHE* 4.8 2.9 - - + -
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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