Contacts of the strand formed by residues 44 - 49 (chain B) in PDB entry 2PX7
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 44 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3B VAL 3.5 3.6 + - - +
4B SER* 2.6 28.8 + - - +
5B VAL* 2.8 27.8 + - - +
42B ALA* 3.3 0.8 - - - +
43B ALA* 1.3 82.7 - - - +
45B VAL* 1.3 66.5 + - - +
46B LEU* 3.8 24.0 - - + +
62B VAL* 6.2 2.0 - - + -
80B ALA 4.1 4.2 - - - +
81B ALA* 3.4 4.3 - - - -
82B SER* 2.6 38.0 + - - -
83B LEU* 3.8 14.4 - - + -
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Residues in contact with VAL 45 (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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5B VAL* 3.5 20.0 - - + +
7B ILE* 4.5 4.5 - - + -
35B THR* 6.1 0.2 - - + -
36B LEU* 3.6 29.8 - - + -
39B PHE* 4.0 22.2 - - + +
42B ALA* 4.3 13.9 - - + +
44B GLU* 1.3 81.4 - - - +
46B LEU* 1.3 65.3 + - - +
47B VAL* 4.2 10.3 - - + -
60B GLY 4.8 5.5 + - - +
61B ALA* 3.4 10.5 - - + -
62B VAL* 2.9 27.0 + - - +
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Residues in contact with LEU 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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4B SER* 5.0 0.2 - - - -
5B VAL 2.8 13.0 + - - +
6B LEU* 3.4 16.2 - - + -
7B ILE* 2.8 26.9 + - - +
44B GLU* 3.8 19.7 - - + +
45B VAL* 1.3 75.2 - - - +
47B VAL* 1.3 63.3 + - - +
62B VAL* 3.4 35.9 - - + +
64B LEU* 4.7 3.8 - - + -
77B LEU* 3.6 25.2 - - + +
80B ALA* 3.9 16.8 - - + +
81B ALA* 3.6 36.1 - - - +
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Residues in contact with VAL 47 (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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7B ILE* 3.5 21.1 - - + +
9B ALA* 4.5 2.7 - - + -
32B LEU* 3.6 32.5 - - + -
36B LEU* 4.5 1.8 - - + -
45B VAL* 4.2 8.5 - - + -
46B LEU* 1.3 80.8 - - - +
48B ALA* 1.3 69.5 + - - +
49B LEU* 4.2 6.7 - - + -
61B ALA* 3.7 24.5 - - + -
62B VAL 2.9 6.8 + - - +
63B PHE* 3.3 25.5 - - + -
64B LEU 3.0 24.4 + - - +
77B LEU* 3.6 4.9 - - - +
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Residues in contact with ALA 48 (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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7B ILE 2.9 9.6 + - - +
8B PRO* 4.2 1.6 - - + -
9B ALA* 3.1 30.7 + - - +
10B ALA* 4.1 1.6 - - - -
47B VAL* 1.3 73.0 - - - +
49B LEU* 1.3 63.5 + - - +
64B LEU 3.3 6.3 - - - +
65B GLU 4.5 1.3 - - - +
66B GLY* 3.8 22.4 - - - -
73B SER* 4.0 14.1 - - - +
76B ARG* 5.9 0.2 - - + -
77B LEU* 3.6 27.2 - - + +
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Residues in contact with LEU 49 (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 ALA 4.0 3.6 - - - +
10B ALA* 3.6 4.3 - - - -
20B PRO 5.7 0.2 - - - -
22B ALA* 3.7 30.3 - - + -
23B PHE* 3.9 26.7 - - + -
32B LEU* 4.7 2.9 - - + -
47B VAL* 4.2 9.6 - - + -
48B ALA* 1.3 82.8 - - - +
50B PRO* 1.4 81.4 - - + +
51B PRO 3.5 0.2 - - - -
53B ALA* 4.3 8.3 - - + +
55B PRO* 4.1 19.1 - - + -
63B PHE* 3.7 33.7 - - + -
64B LEU 3.1 9.2 + - - +
65B GLU* 3.7 4.9 - - - -
66B GLY 2.9 19.2 + - - -
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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