Contacts of the helix formed by residues 130 - 136 (chain D) in PDB entry 4OGB
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 ASP 130 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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126D PHE 3.0 1.7 + - - -
127D GLN* 3.0 17.6 + - - +
128D GLU 3.3 1.7 - - - +
129D ARG* 1.3 78.9 - - - +
131D LEU* 1.3 59.2 + - - +
132D LEU* 3.3 3.5 + - - -
133D LYS* 3.4 34.4 + - - +
134D THR* 2.9 33.0 + - - +
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Residues in contact with LEU 131 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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125D ILE 4.8 0.2 - - - +
126D PHE* 3.0 48.1 + - + +
129D ARG* 3.9 27.4 - - + +
130D ASP* 1.3 75.5 - - - +
132D LEU* 1.3 65.9 + - - +
133D LYS 3.3 0.2 - - - -
134D THR* 3.8 5.4 - - - +
135D PHE* 3.0 56.7 + - + +
137D ILE* 3.9 3.6 - - - +
187D ASP* 4.3 17.0 - - + +
190D ILE* 4.8 6.5 - - + -
191D LEU* 4.3 11.4 - - + +
194D ILE* 4.3 18.8 - - + -
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Residues in contact with LEU 132 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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126D PHE* 3.7 30.5 - - + +
127D GLN* 3.7 32.3 - - + +
130D ASP* 3.3 1.0 - - - -
131D LEU* 1.3 77.3 - - - +
133D LYS* 1.3 58.0 + - - +
136D LYS* 2.8 10.2 + - - -
137D ILE* 2.8 54.0 + - + +
138D PRO 4.6 0.2 - - - -
139D VAL* 3.7 36.6 - - + -
142D LEU* 4.0 19.1 - - + -
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Residues in contact with LYS 133 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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130D ASP* 3.4 36.2 + - - +
131D LEU 3.3 0.2 - - - -
132D LEU* 1.3 77.6 - - - +
134D THR* 1.3 67.2 + - - +
135D PHE 3.3 0.7 + - - -
136D LYS* 3.3 18.3 + - - +
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Residues in contact with THR 134 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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129D ARG 4.7 1.9 + - - -
130D ASP* 2.9 29.8 + - - +
131D LEU* 4.1 3.5 - - - +
133D LYS* 1.3 79.4 - - - +
135D PHE* 1.3 92.8 + - + +
136D LYS* 4.7 3.6 - - - +
187D ASP* 4.0 23.9 + - + +
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Residues in contact with PHE 135 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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131D LEU* 3.0 48.2 + - + +
134D THR* 1.3 91.4 - - + +
136D LYS* 1.3 73.7 + - - +
137D ILE* 3.3 15.2 + - + +
187D ASP* 3.6 34.8 - - + -
188D LEU* 3.7 24.9 - - + -
191D LEU* 3.8 18.4 - - + -
248D ILE 5.0 0.7 - - - +
251D ASN* 3.9 10.8 + - - +
252D LEU* 3.4 33.1 - - + +
256D GLN* 4.0 18.6 - - - -
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Residues in contact with LYS 136 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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132D LEU 2.8 11.5 + - - -
133D LYS* 3.3 12.7 + - - +
134D THR 4.7 2.9 - - - +
135D PHE* 1.3 81.2 - - - +
137D ILE* 1.3 58.7 + - - +
138D PRO* 3.3 4.7 - - - +
248D ILE 5.3 0.7 - - - +
250D GLN* 5.2 0.2 - - - +
251D ASN* 2.7 52.3 + - + +
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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