Contacts of the strand formed by residues 70 - 74 (chain B) in PDB entry 2PG4
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 LYS 70 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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31B SER* 3.1 9.5 - - - -
32B LEU* 3.1 33.9 + - + -
62B GLU* 3.7 21.6 + - + +
63B GLU 3.3 17.5 - - - +
64B THR* 3.6 32.7 + - + +
65B LEU* 4.2 1.8 - - - +
69B VAL* 1.3 75.0 - - - +
71B THR* 1.3 63.1 + - - +
100B PEG 3.0 52.8 + - - -
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Residues in contact with THR 71 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
29B GLU* 4.5 1.5 - - - +
30B PRO* 2.5 36.8 + - - +
32B LEU* 3.8 9.9 - - - -
35B ILE* 4.5 0.2 - - - -
62B GLU* 3.5 10.0 - - - +
63B GLU* 3.0 45.1 + - + +
65B LEU* 4.1 22.0 - - + -
70B LYS* 1.3 72.1 - - - +
72B LEU* 1.3 76.5 + - - +
73B LYS* 4.1 24.4 + - + +
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Residues in contact with LEU 72 (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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16B ILE* 4.8 6.7 - - + -
20B LEU* 3.9 21.0 - - + +
32B LEU* 3.8 17.0 - - + -
35B ILE* 3.8 13.8 - - + +
46B PHE* 3.8 26.5 - - + -
51B LYS* 4.0 17.0 - - + -
54B LEU* 5.0 3.1 - - + -
55B ILE* 4.8 0.7 - - + -
60B VAL* 4.1 27.4 - - + -
61B LYS 3.4 3.6 - - - +
62B GLU* 3.8 31.0 - - + +
71B THR* 1.3 81.5 + - - +
73B LYS* 1.3 61.3 + - - +
96B CL 3.0 23.4 - - - +
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Residues in contact with LYS 73 (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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20B LEU* 5.1 0.2 - - - -
24B GLU* 5.6 4.7 - - - +
29B GLU* 2.4 34.8 + - - +
60B VAL* 3.1 7.2 - - - -
61B LYS* 2.8 47.9 + - + +
63B GLU* 3.6 34.6 + - + +
65B LEU* 4.9 1.8 - - - +
71B THR* 4.1 15.2 + - + +
72B LEU* 1.3 78.3 - - - +
74B LEU* 1.3 66.6 + - - +
96B CL 4.4 9.9 - - + -
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Residues in contact with LEU 74 (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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17B LEU* 3.9 25.6 - - + +
20B LEU* 4.0 23.1 - - + +
21B LEU* 3.8 38.1 - - + +
24B GLU* 4.1 20.3 + - - +
59B LEU 3.7 10.1 - - - +
60B VAL* 4.4 0.4 - - - +
61B LYS* 6.0 0.2 - - - -
72B LEU 4.3 0.4 + - - -
73B LYS* 1.3 76.4 - - - +
75B THR* 1.3 68.6 + - - +
78B GLY 3.7 19.3 - - - +
79B ARG* 3.4 36.7 + - + +
82B ALA* 4.3 0.9 - - + -
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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