Contacts of the helix formed by residues 445 - 449 (chain F) in PDB entry 4DVQ
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 PHE 445 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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97F VAL* 3.9 27.1 - - + -
100F LEU* 4.0 29.2 - - + -
101F GLN* 3.8 31.6 - - + +
104F ASP* 4.0 11.2 - - - -
382F LEU* 3.7 31.6 - - + -
384F ARG* 3.2 45.3 + - + -
405F VAL* 4.8 0.9 - - + -
438F PHE* 5.1 10.8 - - + -
441F VAL* 4.8 6.7 - - + -
444F GLY* 1.3 74.9 - - - +
446F GLY* 1.3 68.8 + - - +
449F GLN* 3.3 16.9 + - - +
601F HEM 3.3 2.6 + - - -
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Residues in contact with GLY 446 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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101F GLN* 3.7 28.3 - - - +
104F ASP* 4.8 2.7 - - - -
445F PHE* 1.3 78.2 - - - +
447F MET* 1.3 61.8 + - - -
448F ARG 2.9 7.4 + - - -
449F GLN* 3.0 29.5 + - - +
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Residues in contact with MET 447 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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104F ASP* 4.9 4.4 + - - -
105F SER 6.0 1.6 - - - +
106F LEU 5.4 0.4 - - - +
108F PRO* 5.2 6.5 - - + -
137F TRP* 3.6 25.5 - - + -
138F ARG* 4.3 28.3 - - - +
141F ARG* 3.2 29.5 + - + +
142F LEU* 4.9 12.8 - - - -
145F ASN* 5.1 13.6 + - - +
446F GLY* 1.3 71.3 - - - -
448F ARG* 1.3 56.2 + - - +
449F GLN* 3.4 1.1 - - - +
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Residues in contact with ARG 448 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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108F PRO* 3.6 37.8 + - + +
110F ARG* 3.5 23.2 + - - +
129F VAL 2.9 21.4 + - - -
130F PHE 3.7 8.3 + - - -
132F LEU 2.5 24.6 + - - -
133F ASN* 2.6 26.5 + - - +
137F TRP* 3.1 29.6 - - + +
141F ARG* 3.5 8.5 + - - +
384F ARG* 3.6 24.5 - - - +
446F GLY 2.9 1.4 + - - -
447F MET* 1.3 76.1 - - - +
449F GLN* 1.3 69.2 + - - +
601F HEM 2.7 60.8 + - - +
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Residues in contact with GLN 449 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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141F ARG* 2.9 29.9 + - - +
149F LEU* 4.9 7.9 - - + +
443F PHE* 3.4 14.0 - - + +
444F GLY 4.7 4.7 - - - +
445F PHE* 3.3 18.3 + - - +
446F GLY* 3.0 29.0 + - - +
447F MET* 3.4 0.6 - - - +
448F ARG* 1.3 77.3 - - - +
450F CYS* 1.3 71.4 + - - +
453F ARG* 4.0 24.6 + - - +
601F HEM 3.6 7.2 - - - -
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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