Contacts of the helix formed by residues 5 - 11 (chain E) in PDB entry 1TO2
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 PRO 5 (chain E).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3E SER* 3.4 10.5 - - - +
4E VAL* 1.3 85.9 - - - +
6E TYR* 1.3 68.7 + - + +
7E GLY 4.4 3.4 - - - +
8E VAL* 3.0 28.2 + - + +
9E SER* 3.5 3.8 + - - -
81E VAL* 3.7 20.0 - - + -
82E LEU 3.6 22.0 - - - +
205E ILE* 5.5 4.5 - - + -
206E GLN* 3.6 37.9 - - + +
226E HIS* 6.1 0.9 - - - +
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Residues in contact with TYR 6 (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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4E VAL 3.5 3.6 + - - -
5E PRO* 1.3 74.5 - - + +
7E GLY* 1.3 60.1 + - - +
9E SER* 3.1 10.4 + - - +
10E GLN* 2.8 54.5 + - - +
181E ASP* 3.9 4.2 - - - -
182E SER* 3.5 35.7 + - - -
201E PRO* 4.0 11.2 - - + +
203E VAL* 2.6 36.4 + - - +
204E SER* 3.6 16.8 - - - -
205E ILE* 3.5 17.5 - - + +
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Residues in contact with GLY 7 (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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5E PRO* 3.0 3.8 + - - +
6E TYR* 1.3 88.4 - - - +
8E VAL* 1.3 61.6 + - - +
10E GLN* 3.6 1.0 - - - +
11E ILE* 3.2 30.7 + - - +
201E PRO* 3.6 26.9 - - - -
205E ILE* 5.0 2.7 - - - +
226E HIS* 3.6 15.8 - - - -
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Residues in contact with VAL 8 (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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4E VAL* 3.9 16.8 - - + -
5E PRO* 3.0 21.9 + - + +
7E GLY* 1.3 78.4 - - - +
9E SER* 1.3 61.9 + - - +
11E ILE* 3.4 9.7 - - - +
13E ALA* 3.3 39.5 + - + -
14E PRO* 3.4 3.8 - - + +
17E HIS* 4.5 6.5 - - + -
71E THR* 5.1 4.5 - - + +
82E LEU* 3.6 22.2 - - + +
83E GLY* 4.2 14.1 - - - +
84E VAL* 4.0 19.1 - - + +
226E HIS* 4.0 7.6 + - - +
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Residues in contact with SER 9 (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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4E VAL* 3.5 22.5 + - - +
5E PRO 3.5 2.3 + - - -
6E TYR* 3.1 11.8 + - - -
8E VAL* 1.3 77.1 - - - +
10E GLN* 1.3 60.2 + - - +
12E LYS* 3.0 24.9 + - - +
14E PRO* 3.9 16.5 - - - +
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Residues in contact with GLN 10 (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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6E TYR* 2.8 42.0 + - - +
7E GLY* 3.2 8.5 + - - +
9E SER* 1.3 77.2 - - - +
11E ILE* 1.3 59.8 + - - +
12E LYS* 3.2 12.6 + - - +
180E VAL* 4.1 9.9 - - - +
181E ASP 3.1 17.7 + - - -
182E SER* 3.3 14.1 + - - +
184E ASN* 2.8 27.6 + - - +
201E PRO* 4.0 11.4 - - + +
267E LEU* 3.9 22.2 - - + +
268E ILE 4.5 0.3 - - - +
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Residues in contact with ILE 11 (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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7E GLY 3.2 7.3 + - - +
8E VAL 3.4 14.4 - - - +
10E GLN* 1.3 76.5 - - - +
12E LYS* 1.3 61.4 + - - +
13E ALA* 3.9 6.1 - - + +
84E VAL* 3.8 29.4 - - + -
201E PRO* 3.6 31.9 - - + -
226E HIS* 3.7 28.9 - - + +
230E ALA* 4.5 4.3 - - + -
267E LEU* 4.4 2.7 - - + -
268E ILE* 3.7 39.3 - - + +
269E ASN* 3.5 1.2 - - - -
270E VAL* 2.9 33.0 + - + +
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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