Contacts of the helix formed by residues 124 - 129 (chain C) in PDB entry 5DO7
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 124 (chain C).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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119C ALA 4.6 2.3 - - - +
120C LEU* 4.4 7.6 - - + -
121C ARG* 2.8 50.6 + - - +
123C GLU* 1.3 96.2 + - + +
125C PHE* 1.3 68.8 + - - +
126C GLN* 3.4 2.2 - - - -
127C ASP* 2.8 24.2 + - + +
128C CYS* 3.1 12.3 + - + +
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Residues in contact with PHE 125 (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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98C ALA 5.1 2.5 - - - -
99C MET* 2.7 38.1 - - + +
100C SER 4.8 0.2 - - - -
101C GLY* 4.2 19.1 - - - +
109C PHE* 4.0 28.0 - + - -
113C VAL* 4.4 11.4 - - + -
120C LEU* 3.1 49.5 - - + +
121C ARG 3.6 2.2 + - - -
122C ARG* 3.3 50.3 - - + +
123C GLU 3.8 0.6 - - - -
124C GLN* 1.3 74.8 - - - +
126C GLN* 1.3 52.3 + - - +
128C CYS* 2.8 23.4 + - - -
129C PHE* 2.8 31.7 + + - -
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Residues in contact with GLN 126 (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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100C SER 4.2 16.2 + - - +
101C GLY* 5.6 4.4 - - - +
124C GLN 3.2 1.2 + - - -
125C PHE* 1.3 79.5 - - + +
127C ASP* 1.3 62.2 + - - +
129C PHE* 3.4 16.8 - - - +
357C LYS* 4.6 5.5 + - - -
453C SER 4.4 1.6 + - - -
454C GLN 3.7 12.5 + - - +
455C ASP 3.6 12.2 + - - +
456C GLY* 3.1 34.6 - - - +
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Residues in contact with ASP 127 (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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123C GLU 5.7 0.4 + - - +
124C GLN* 2.8 20.5 + - + +
126C GLN* 1.3 79.2 - - - +
128C CYS* 1.3 50.8 + - + +
357C LYS* 2.5 46.8 - - - +
358C THR 3.9 12.1 - - - +
359C LYS* 3.7 43.3 + - - +
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Residues in contact with CYS 128 (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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115C VAL* 3.8 29.8 - - - -
120C LEU* 5.4 6.1 - - + -
124C GLN* 3.1 10.6 + - + +
125C PHE* 2.8 12.8 + - - +
127C ASP* 1.3 71.5 - - + +
129C PHE* 1.3 65.0 + - + -
213C VAL* 2.8 27.3 - - - +
355C PRO* 3.9 35.2 - - + +
356C PHE 4.2 3.6 - - - -
357C LYS* 3.9 7.6 - - - -
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Residues in contact with PHE 129 (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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38C LEU* 4.1 26.5 - - + -
99C MET* 3.6 25.6 - - + -
100C SER* 4.8 7.4 - - - -
113C VAL* 4.8 6.1 - - + -
115C VAL* 4.7 6.1 - - + -
120C LEU* 3.6 14.1 - - + -
125C PHE* 2.8 48.7 + + - +
126C GLN* 3.4 15.7 - - - +
128C CYS* 1.3 85.0 - - + +
130C SER* 1.3 61.9 + - - +
213C VAL* 3.6 30.1 - - + -
215C LEU* 3.7 31.6 - - + -
357C LYS* 3.6 15.0 + - - +
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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