Contacts of the strand formed by residues 53 - 57 (chain B) in PDB entry 4B2Q
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 GLU 53 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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48B ASN 4.7 1.2 - - - +
49B ILE* 3.8 13.6 - - + +
50B GLN* 3.0 51.9 + - + +
51B ALA 4.3 0.2 - - - -
52B GLU* 1.3 78.4 - - - +
54B LEU* 1.3 74.0 + - - +
55B VAL* 3.5 6.1 - - - +
64B MET* 3.5 3.5 - - - -
65B ALA* 3.3 21.3 + - - +
92B ARG* 3.5 25.3 + - - +
94B GLY* 3.0 32.4 + - - +
95B ASN 3.8 14.4 - - - +
96B ILE* 4.2 5.6 - - - +
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Residues in contact with LEU 54 (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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53B GLU* 1.3 81.1 - - - +
55B VAL* 1.3 69.5 + - - +
62B LYS* 3.8 37.7 - - + +
63B GLY 3.3 20.6 - - - +
78B PHE* 5.4 2.7 - - + -
93B THR* 3.4 40.0 + - + +
95B ASN 3.3 16.4 + - - +
97B VAL* 3.6 40.8 - - + +
98B ASP* 4.9 9.2 - - - +
113B LEU* 5.7 3.4 - - + -
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Residues in contact with VAL 55 (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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46B LEU* 4.6 6.7 - - + -
49B ILE* 3.8 23.3 - - + -
53B GLU 3.5 9.0 - - - +
54B LEU* 1.3 82.4 - - - +
56B GLU* 1.3 63.6 + - - +
57B PHE* 4.5 8.3 - - + -
62B LYS* 3.1 10.7 - - - +
63B GLY* 2.9 46.3 + - - +
64B MET 4.0 0.2 - - - +
65B ALA 5.0 0.9 - - - +
75B ILE* 3.8 24.2 - - + -
90B VAL* 4.9 2.7 - - + -
91B LYS 3.8 8.7 - - - +
92B ARG* 4.3 11.0 - - + -
93B THR* 4.0 8.1 - - - +
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Residues in contact with GLU 56 (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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55B VAL* 1.3 76.9 - - - +
57B PHE* 1.3 74.8 + - - +
60B GLY* 3.6 29.7 - - - +
61B VAL 3.3 5.4 - - - +
62B LYS* 5.1 10.2 - - + +
90B VAL* 3.8 3.5 - - - +
91B LYS* 2.9 46.5 + - + +
92B ARG 6.0 0.7 - - - -
93B THR* 4.7 5.3 + - - +
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Residues in contact with PHE 57 (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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33B VAL* 4.6 8.7 - - + -
41B ALA* 4.7 6.1 - - + -
43B VAL* 4.2 10.8 - - + -
55B VAL* 4.5 3.1 - - + -
56B GLU* 1.3 80.3 - - - +
58B SER* 1.3 58.8 + - - +
59B SER* 3.0 7.4 - - - +
60B GLY* 2.7 23.6 + - - -
61B VAL* 3.1 40.9 + - + +
63B GLY* 4.5 11.4 - - - -
75B ILE* 4.0 22.2 - - + -
77B LEU* 3.6 29.8 - - + -
84B VAL* 4.4 15.3 - - + -
88B GLU* 4.9 8.3 - - - +
89B LEU 3.6 4.7 - - - +
90B VAL* 3.4 41.1 - - + -
91B LYS* 5.4 1.3 - - - -
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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