Contacts of the helix formed by residues 96 - 101 (chain D) in PDB entry 3VZC
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 96 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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69D LEU* 5.3 0.3 - - - +
94D ARG* 2.8 47.3 + - - +
95D PRO* 1.3 80.8 - - + +
97D TRP* 1.3 62.6 + - - +
98D GLU* 3.0 7.3 + - - -
99D THR* 3.1 17.9 + - - +
100D ALA* 3.0 20.2 + - - +
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Residues in contact with TRP 97 (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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216B GLY* 4.1 2.9 - - - -
217B ARG* 4.1 24.2 - - + -
91D LEU 3.8 15.0 - - - +
92D MET* 3.2 38.6 - - + +
94D ARG 3.0 23.8 + - - +
95D PRO* 3.2 10.2 + - + -
96D ASP* 1.3 76.2 - - - +
98D GLU* 1.3 98.5 + - + +
100D ALA* 4.0 1.1 - - - -
101D ILE* 3.0 37.2 + - + +
231D GLN 3.8 9.6 + - - -
232D GLY* 3.6 35.2 - - - -
233D PRO* 3.7 19.3 - - + -
358D TYR* 3.8 25.8 - + - -
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Residues in contact with GLU 98 (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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214B PRO* 4.8 2.4 - - - +
216B GLY* 4.3 7.7 - - - -
217B ARG* 2.7 59.7 + - - +
96D ASP* 3.0 4.9 + - - +
97D TRP* 1.3 113.2 + - + +
99D THR* 1.3 65.1 + - + +
101D ILE* 4.0 6.9 - - - +
102D GLN* 3.5 22.9 + - - -
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Residues in contact with THR 99 (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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96D ASP* 3.2 23.3 + - - +
98D GLU* 1.3 82.1 - - + +
100D ALA* 1.3 65.6 + - - +
101D ILE 3.3 1.6 - - - -
102D GLN* 3.3 29.2 + - - +
103D LYS* 4.1 2.8 + - - +
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Residues in contact with ALA 100 (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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69D LEU* 3.7 17.0 - - + -
91D LEU* 3.7 27.0 - - + +
94D ARG* 3.7 27.1 - - - +
96D ASP* 3.0 18.3 + - - +
97D TRP 3.7 4.0 - - - +
99D THR* 1.3 76.5 - - - +
101D ILE* 1.3 58.1 + - - +
102D GLN 2.9 6.4 + - - -
103D LYS* 3.0 24.1 + - - +
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Residues in contact with ILE 101 (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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88D VAL* 4.2 17.9 - - + -
91D LEU* 4.1 24.5 - - + +
92D MET* 3.7 36.6 - - + -
97D TRP* 3.0 25.3 + - + +
98D GLU* 4.0 13.0 - - - +
100D ALA* 1.3 74.6 - - - +
102D GLN* 1.3 61.4 + - + +
103D LYS 3.4 3.9 + - - +
105D LEU* 5.2 0.4 - - + +
152D LEU* 4.7 4.9 - - + -
358D TYR* 3.8 22.4 - - + +
359D PHE* 3.2 40.8 - - + +
360D TRP 4.3 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