Contacts of the helix formed by residues 97 - 103 (chain E) in PDB entry 3HB8
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 ASN 97 (chain E).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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90E TRP* 3.2 17.7 + - - -
95E SER* 3.3 8.6 + - - +
96E THR* 1.3 76.5 - - - +
98E ALA* 1.3 65.5 + - - +
99E LYS* 2.6 37.9 + - - +
100E GLU* 3.0 19.8 + - + +
129E GLY* 3.4 8.2 - - - +
149E MET* 3.1 43.3 - - + +
150E GLU* 5.1 4.6 + - - -
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Residues in contact with ALA 98 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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90E TRP* 3.9 11.9 - - - -
96E THR 4.0 0.6 + - - -
97E ASN* 1.3 70.3 - - - +
99E LYS* 1.3 51.8 + - - +
101E LEU* 3.0 6.1 + - - +
102E SER* 2.8 33.1 + - - -
109E TRP* 3.9 32.3 - - + +
110E ASP* 3.6 18.9 - - - +
113E GLY* 4.7 0.4 - - - -
129E GLY* 2.8 24.3 + - - +
131E LEU* 4.0 6.4 - - + +
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Residues in contact with LYS 99 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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97E ASN* 2.6 30.3 + - - +
98E ALA* 1.3 72.1 - - + +
100E GLU* 1.3 61.9 + - - +
102E SER* 3.1 8.3 + - - -
103E SER* 3.0 25.6 + - - -
110E ASP* 4.9 7.6 + - - +
128E GLU* 3.3 57.3 + - - +
129E GLY* 4.2 3.1 - - - +
149E MET* 5.3 0.9 - - + -
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Residues in contact with GLU 100 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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90E TRP* 4.1 4.9 - - + +
93E LYS* 3.4 26.8 + - - +
95E SER* 3.8 16.4 - - - +
97E ASN* 3.0 23.0 + - + +
99E LYS* 1.3 78.8 - - - +
101E LEU* 1.3 57.9 + - - +
103E SER* 3.0 23.6 + - - -
104E LYS* 3.1 40.2 - - - +
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Residues in contact with LEU 101 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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86E GLU* 3.5 36.1 - - + +
87E GLU* 3.9 5.6 - - + +
90E TRP* 3.8 36.7 - - + +
97E ASN 3.6 1.2 + - - -
98E ALA 3.0 9.0 + - - +
100E GLU* 1.3 77.6 - - - +
102E SER* 1.3 67.3 + - - +
104E LYS* 3.1 23.0 + - + +
106E VAL* 3.0 38.5 + - + +
108E ILE* 4.1 3.6 - - + -
109E TRP* 3.5 35.9 - - + +
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Residues in contact with SER 102 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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98E ALA 2.8 5.6 + - - -
99E LYS* 3.1 13.9 + - - -
101E LEU* 1.3 72.8 - - - +
103E SER* 1.3 53.1 + - - +
104E LYS 2.7 4.8 + - - -
105E GLY* 2.5 31.9 + - - -
106E VAL 3.1 10.7 + - - -
107E LYS* 2.9 22.4 + - - -
110E ASP* 2.8 38.4 + - - -
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Residues in contact with SER 103 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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99E LYS 3.0 12.0 + - - -
100E GLU* 3.0 25.1 + - - -
102E SER* 1.3 75.2 - - - +
104E LYS* 1.3 68.4 + - - +
105E GLY* 3.1 4.1 + - - -
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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