Contacts of the helix formed by residues 98 - 104 (chain D) in PDB entry 1C03
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 98 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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97D PRO* 1.3 77.3 - - - +
99D LYS* 1.3 68.0 + - - +
100D THR* 3.3 7.2 - - - +
101D GLU* 3.1 21.0 + - + +
102D LEU* 3.3 12.1 + - - +
143D LYS* 3.1 28.9 - - - +
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Residues in contact with LYS 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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97D PRO 4.1 0.4 + - - -
98D ASN* 1.3 73.6 - - - +
100D THR* 1.3 55.1 + - - +
102D LEU* 3.0 3.0 + - - +
103D VAL* 2.7 41.2 + - + +
117D ILE* 3.0 38.0 + - + +
118D ASP* 3.1 15.8 + - - +
121D ASP* 2.8 43.0 + - - -
143D LYS* 5.8 0.6 - - - +
146D ASN* 4.3 13.6 + - - -
147D GLN* 3.3 29.3 - - - +
150D LEU* 3.9 14.8 - - + -
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Residues in contact with THR 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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98D ASN* 3.3 5.5 - - - +
99D LYS* 1.3 78.7 - - - +
101D GLU* 1.3 61.7 + - - +
103D VAL* 3.9 5.7 - - - +
104D ASN* 3.1 40.1 + - - +
117D ILE* 5.1 8.4 - - - +
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Residues in contact with GLU 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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2D SER* 3.6 23.0 + - - +
95D PHE* 5.8 1.0 - - - -
97D PRO* 3.9 21.4 - - + +
98D ASN* 3.1 17.5 + - + +
100D THR* 1.3 79.7 - - - +
102D LEU* 1.3 63.5 + - - +
104D ASN* 3.4 14.1 + - - +
105D THR* 3.5 13.0 - - + +
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Residues in contact with LEU 102 (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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2D SER 3.2 31.9 - - - +
4D ILE* 4.1 26.7 - - + -
77D ARG* 3.1 7.5 + - - -
80D TRP* 4.3 7.0 - - + -
96D PHE* 3.8 33.0 - - + -
97D PRO* 3.9 23.6 - - + +
98D ASN 3.3 5.8 + - - +
99D LYS 3.0 7.1 + - - +
101D GLU* 1.3 76.6 - - - +
103D VAL* 1.3 61.0 + - - +
104D ASN 3.0 4.7 + - - -
105D THR* 2.7 28.0 + - + -
147D GLN* 3.6 24.0 - - + +
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Residues in contact with VAL 103 (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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77D ARG* 4.8 2.5 - - - +
99D LYS* 2.7 30.9 + - + +
100D THR* 4.0 5.6 - - - +
102D LEU* 1.3 71.7 - - - +
104D ASN* 1.3 58.1 + - - +
105D THR 3.3 0.2 - - - -
106D LEU* 3.4 23.0 - - + +
109D LYS* 2.7 37.5 + - - +
112D ILE* 3.8 19.1 - - + -
117D ILE* 4.4 16.6 - - + -
147D GLN* 4.6 3.1 - - - +
150D LEU* 3.6 30.7 - - + -
151D GLU* 5.4 0.9 - - - +
154D LEU* 5.9 1.3 - - + -
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Residues in contact with ASN 104 (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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100D THR* 3.1 33.1 + - - +
101D GLU* 3.5 9.0 - - - +
102D LEU 3.0 1.2 + - - -
103D VAL* 1.3 81.6 - - - +
105D THR* 1.3 60.4 + - - +
106D LEU 3.2 2.8 + - - +
109D LYS* 3.5 22.7 - - - +
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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