Contacts of the helix formed by residues 174 - 179 (chain L) in PDB entry 5G04
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 THR 174 (chain L).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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735H LYS* 4.6 20.4 - - - -
736H GLU* 3.9 1.4 - - - +
173L THR* 1.3 81.1 - - - +
175L ILE* 1.3 58.4 + - - +
176L ASP* 3.0 16.9 + - - -
177L PHE 3.4 9.9 + - - -
178L MET* 3.6 15.3 + - - +
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Residues in contact with ILE 175 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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545H HIS 5.4 0.8 - - - +
546H LEU* 5.3 6.3 - - - +
547H GLN* 4.5 23.3 - - + -
174L THR* 1.3 71.4 - - - +
176L ASP* 1.3 61.9 + - - +
177L PHE 3.4 0.4 - - - -
178L MET* 4.0 10.1 - - - -
179L MET* 3.2 27.4 + - - +
153X LYS* 5.3 3.1 - - - +
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Residues in contact with ASP 176 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
703H PRO* 3.6 18.3 - - + +
732H ILE 5.8 0.9 - - - +
733H VAL* 3.6 24.7 - - + -
734H PRO* 6.2 1.1 - - + -
174L THR* 3.0 7.1 + - - +
175L ILE* 1.3 79.0 - - - +
177L PHE* 1.3 59.0 + - - +
179L MET* 4.1 5.4 - - - +
180L TYR* 3.7 13.3 - - - -
153X LYS* 4.0 23.0 - - - +
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Residues in contact with PHE 177 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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703H PRO* 3.4 43.1 - - + +
704H LEU* 3.5 37.4 - - + +
707H PHE* 3.6 32.3 - + + -
729H LEU* 4.9 3.6 - - + -
733H VAL* 4.5 5.4 - - + -
736H GLU* 3.0 42.8 - - + +
738H LEU* 5.3 7.2 - - + -
166L SER* 5.4 4.3 - - - -
172L CYS* 4.1 20.2 - - + -
174L THR 3.4 2.6 + - - -
176L ASP* 1.3 75.7 - - - +
178L MET* 1.3 66.5 + - - +
179L MET 3.2 2.0 - - - -
180L TYR* 3.2 18.7 + - - +
181L ARG* 3.8 7.7 + - + -
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Residues in contact with MET 178 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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544H TRP* 5.9 2.3 - - - -
545H HIS* 5.2 3.0 + - - +
547H GLN* 5.0 13.2 + - + +
166L SER* 5.4 1.8 - - - -
171L PRO* 6.2 0.4 - - + -
172L CYS* 3.4 48.2 - - + +
173L THR* 4.8 2.9 - - - -
174L THR 3.6 15.5 + - - +
175L ILE* 3.8 6.7 + - - -
177L PHE* 1.3 74.8 - - - +
179L MET* 1.3 55.4 + - - +
180L TYR 2.9 11.7 + - - -
181L ARG* 3.1 63.1 + - - +
182L SER 4.9 0.2 + - - -
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Residues in contact with MET 179 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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514H GLU* 4.4 1.8 - - - -
515H TYR* 3.6 53.6 - - + +
516H MET* 3.8 16.8 - - + +
545H HIS* 3.5 40.9 + - + +
546H LEU* 4.5 13.2 - - + -
547H GLN* 6.1 0.2 - - - +
175L ILE* 3.2 20.2 + - - +
176L ASP* 4.1 6.1 - - - +
178L MET* 1.3 73.1 - - - +
180L TYR* 1.3 97.5 + - + +
181L ARG 3.6 0.2 - - - -
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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
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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