Contacts of the strand formed by residues 18 - 23 (chain C) in PDB entry 1E9H
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 VAL 18 (chain C).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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9C LYS 3.8 0.5 - - - -
10C ILE* 2.9 40.3 + - + -
11C GLY* 2.9 16.1 + - - +
12C GLU 4.8 0.4 - - - -
13C GLY 4.2 14.4 - - - +
17C VAL* 1.3 83.8 - - - +
19C TYR* 1.3 64.0 + - - +
31C ALA* 4.2 18.6 - - + -
32C LEU 3.0 9.6 - - - +
33C LYS* 4.2 19.3 - - + +
80C PHE* 6.5 0.4 - - + -
1298C INR 3.8 35.9 - - + +
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Residues in contact with TYR 19 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
6C LYS* 4.1 37.9 - - + -
8C GLU 3.7 3.6 - - - +
9C LYS* 3.7 29.1 - - + +
10C ILE* 4.7 1.6 - - - -
17C VAL* 3.6 40.2 - - + +
18C VAL* 1.3 77.3 - - - +
20C LYS* 1.3 62.6 + - - +
21C ALA 3.5 1.1 + - - +
31C ALA* 3.1 5.1 - - - -
32C LEU* 2.7 52.0 + - + +
34C LYS* 4.8 19.3 - - + +
36C ARG* 5.3 2.4 + - - -
77C TYR* 5.9 3.8 - + - -
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Residues in contact with LYS 20 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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7C VAL* 2.7 60.4 + - + +
8C GLU* 2.9 27.2 + - + +
10C ILE* 4.1 14.5 - - + +
18C VAL 4.3 0.2 + - - -
19C TYR* 1.3 71.6 - - - +
21C ALA* 1.3 52.8 + - - +
29C VAL* 3.7 26.4 - - + +
30C VAL 3.3 5.4 - - - -
31C ALA* 4.4 2.0 - - - +
82C PHE* 3.6 45.6 - - + -
84C HIS* 5.3 4.9 + - - -
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Residues in contact with ALA 21 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4C PHE* 4.5 4.3 - - + -
5C GLN 3.0 26.2 - - - +
6C LYS* 3.9 8.5 - - + -
7C VAL* 3.8 2.7 - - - +
19C TYR 3.5 2.0 + - - +
20C LYS* 1.3 77.0 - - - +
22C ARG* 1.3 66.4 + - - +
29C VAL* 3.5 6.1 - - - +
30C VAL* 2.8 32.0 + - + +
32C LEU* 3.9 30.1 - - + -
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Residues in contact with ARG 22 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4C PHE* 3.4 8.6 - - - -
5C GLN* 2.9 51.8 + - + +
7C VAL* 3.9 18.6 - - + +
21C ALA* 1.3 80.7 - - - +
23C ASN* 1.3 74.8 + - - +
24C LYS* 3.4 26.8 + - - +
27C GLY* 4.2 17.2 + - - +
28C GLU 3.2 13.5 - - - +
29C VAL* 4.0 11.9 - - + +
30C VAL* 4.4 2.9 - - - +
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Residues in contact with ASN 23 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3C ASN* 3.5 18.8 - - - +
4C PHE* 4.2 18.2 - - + -
22C ARG* 1.3 73.4 + - - +
24C LYS* 1.3 56.5 + - - +
25C LEU* 2.9 34.8 + - - +
26C THR* 3.0 33.6 + - - +
27C GLY* 2.5 35.7 + - - -
28C GLU* 2.7 25.4 + - + +
30C VAL* 6.2 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