Contacts of the strand formed by residues 36 - 43 (chain A) in PDB entry 2J7T
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 TRP 36 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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32A PRO* 3.0 12.7 + - + +
33A ASN* 3.6 25.1 - - - +
34A GLU 5.4 0.2 - - - -
35A VAL* 1.3 91.3 - - + +
37A GLU* 1.3 61.2 + - - +
53A ALA* 4.1 13.2 - - + -
54A LYS 3.7 6.1 - - - -
55A ASN* 3.7 38.1 - - + +
56A LYS* 5.1 2.7 - - - -
60A ALA* 3.8 22.9 - - + -
62A ALA* 3.6 18.8 - - + -
97A LEU* 3.6 45.4 + - + -
100A TYR* 3.7 22.8 + + - -
107A TRP* 4.6 12.0 - - + -
109A MET* 3.7 37.7 - - + +
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Residues in contact with GLU 37 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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36A TRP* 1.3 74.5 - - - +
38A ILE* 1.3 72.3 + - - +
39A VAL* 3.3 12.4 + - - +
53A ALA* 3.3 4.1 - - - -
54A LYS* 2.8 43.7 + - + +
56A LYS* 5.3 8.9 - - + +
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Residues in contact with ILE 38 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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37A GLU* 1.3 76.9 - - - +
39A VAL* 1.3 60.6 + - - +
40A GLY 4.0 6.1 - - - +
51A TYR* 3.7 46.4 - - + -
52A LYS 3.8 3.1 - - - +
53A ALA* 4.4 6.3 - - + +
64A ALA* 5.4 1.8 - - + -
66A VAL* 3.6 31.6 - - + -
107A TRP* 4.2 21.7 - - + -
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Residues in contact with VAL 39 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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37A GLU* 3.3 17.5 + - - +
38A ILE* 1.3 73.2 - - - +
40A GLY* 1.3 57.1 + - - +
52A LYS* 3.0 21.0 + - + +
53A ALA 5.2 0.2 - - - -
54A LYS* 4.7 15.3 - - + +
61A LEU* 6.2 0.4 - - + -
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Residues in contact with GLY 40 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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38A ILE* 3.6 5.2 + - - +
39A VAL* 1.3 78.9 - - - +
41A GLU* 1.3 58.3 + - - -
51A TYR* 3.3 13.2 - - - +
52A LYS* 2.7 40.3 + - - +
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Residues in contact with GLU 41 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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40A GLY* 1.3 74.3 - - - -
42A LEU* 1.3 64.9 + - - +
43A GLY 4.7 7.2 - - - +
49A LYS* 6.0 2.2 - - + -
50A VAL 3.7 7.9 - - - +
51A TYR* 4.2 9.2 - - + +
52A LYS* 5.0 1.1 - - - -
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Residues in contact with LEU 42 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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41A GLU* 1.3 74.4 - - - +
43A GLY* 1.3 56.6 + - - +
50A VAL* 2.7 22.1 + - + +
51A TYR* 3.9 16.5 - - - +
52A LYS* 4.1 17.7 - - + -
63A ALA* 4.0 17.0 - - + -
112A PHE* 3.8 39.5 - - + -
1324A 274 3.7 66.3 + - + +
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Residues in contact with GLY 43 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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41A GLU* 3.7 6.8 - - - +
42A LEU* 1.3 78.4 + - - +
44A ASP* 1.3 62.9 + - - +
49A LYS* 3.5 5.4 - - - +
50A VAL* 3.0 36.2 + - - +
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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