Contacts of the strand formed by residues 42 - 46 (chain B) in PDB entry 1A4Y
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 ILE 42 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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406A ASN* 4.4 3.3 + - - +
435A ASP* 3.6 12.3 - - - +
40B LYS* 2.6 30.7 + - - +
41B ASP* 1.3 84.7 - - - +
43B ASN* 1.3 58.8 + - - +
80B THR* 3.8 26.0 - - + -
81B CYS 3.4 5.8 - - - +
82B LYS* 4.3 13.5 - - + -
117B GLN* 4.0 23.3 - - + +
120B PHE 4.1 0.7 - - - +
121B ARG* 3.7 61.2 - - + +
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Residues in contact with ASN 43 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
12B GLN* 2.6 26.7 + - - +
13B HIS* 3.1 15.5 + - - -
30B MET* 3.5 24.0 - - + +
35B LEU* 3.6 11.8 - - - +
40B LYS* 2.7 26.6 + - - +
42B ILE* 1.3 74.9 - - - +
44B THR* 1.3 63.1 + - - +
45B PHE* 3.4 25.9 + - - -
79B THR 3.8 1.2 - - - +
80B THR* 3.5 0.6 - - - -
81B CYS* 2.7 41.4 + - - +
117B GLN* 3.5 3.1 - - - +
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Residues in contact with THR 44 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
13B HIS* 2.8 33.8 - - - +
43B ASN* 1.3 73.7 - - - +
45B PHE* 1.3 64.6 + - - +
46B ILE* 5.0 1.8 - - + -
78B VAL* 4.0 17.5 - - + -
79B THR 3.4 5.8 - - - +
80B THR* 2.7 28.2 + - - +
115B LEU* 3.9 6.8 - - + +
117B GLN* 2.7 29.9 + - - +
120B PHE* 3.3 34.3 - - + +
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Residues in contact with PHE 45 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
12B GLN 3.4 22.4 - - - -
13B HIS 3.6 0.9 - - - -
14B TYR 3.9 18.6 - - - -
15B ASP* 4.4 5.6 - - + -
25B TYR* 4.0 5.6 - + - +
29B ILE* 3.3 47.1 - - + -
30B MET* 4.0 16.4 - - - -
33B ARG* 4.1 22.4 - - + -
35B LEU* 4.4 1.1 - - + -
43B ASN* 3.4 20.6 - - - -
44B THR* 1.3 73.3 - - - +
46B ILE* 1.3 61.9 + - - +
47B HIS* 3.8 19.3 + - + -
78B VAL* 3.1 6.9 - - - +
79B THR* 2.8 40.4 + - - +
81B CYS* 4.2 11.2 - - - -
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Residues in contact with ILE 46 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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9B PHE* 4.4 16.8 - - + -
13B HIS* 2.8 17.2 + - + +
14B TYR* 3.3 8.7 - - - -
15B ASP 3.0 22.3 + - - +
44B THR* 5.0 4.7 - - + +
45B PHE* 1.3 74.6 - - - +
47B HIS* 1.3 65.8 + - - +
53B ILE* 4.0 24.0 - - + -
76B PHE* 3.6 38.6 - - + -
77B GLN 3.8 2.9 - - - -
78B VAL* 4.0 12.6 - - + -
103B VAL* 4.2 16.6 - - + -
115B LEU* 4.1 27.8 - - + -
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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
------------------------------------------------------------
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