Contacts of the strand formed by residues 49 - 56 (chain B) in PDB entry 3I8E
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 LEU 49 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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31B LEU* 3.4 31.4 - - + -
33B ILE* 5.1 2.0 - - + -
42B TYR* 3.6 41.7 - - + -
43B VAL 3.5 4.0 - - - +
44B VAL* 4.4 10.5 - - + -
45B THR* 4.6 1.6 - - - -
47B GLU* 4.3 11.7 + - - +
48B GLY* 1.3 82.1 - - - +
50B ARG* 1.3 60.0 + - - +
51B PRO* 3.4 10.8 - - - +
317B LEU* 4.0 25.6 - - + -
321B VAL* 6.0 0.2 - - + -
323B PHE* 5.3 0.7 - - + -
333B LEU* 4.3 19.8 - - + +
353B PHE* 5.2 10.5 - - + -
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Residues in contact with ARG 50 (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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42B TYR* 3.5 1.9 - - - -
43B VAL* 2.6 51.0 + - - +
45B THR* 4.5 17.1 + - + +
48B GLY 4.2 0.6 + - - -
49B LEU* 1.3 70.6 - - - +
51B PRO* 1.4 76.0 + - + +
52B VAL* 3.7 14.9 + - + +
663B ASN 5.4 5.7 + - - -
664B HIS* 5.4 10.7 - - - +
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Residues in contact with PRO 51 (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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40B GLU* 6.5 0.4 - - + -
41B ILE 3.8 2.0 - - - +
42B TYR* 3.7 30.3 - - + -
49B LEU 3.4 10.3 - - - +
50B ARG* 1.4 92.9 + - + +
52B VAL* 1.3 62.1 + - - +
663B ASN* 4.9 30.2 - - + +
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Residues in contact with VAL 52 (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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24B THR* 4.3 13.0 - - + +
41B ILE* 3.0 30.6 + - + +
43B VAL* 3.8 23.3 - - + -
50B ARG* 4.0 17.5 - - + +
51B PRO* 1.3 78.3 - - - +
53B LYS* 1.3 66.7 + - + +
91B TYR* 3.9 25.4 + - + +
98B ILE* 4.8 6.8 - - - +
663B ASN* 6.5 0.7 - - - -
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Residues in contact with LYS 53 (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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39B LEU 3.6 3.6 - - - +
40B GLU* 5.8 0.4 - - - -
41B ILE* 2.9 37.5 + - + +
52B VAL* 1.3 84.6 - - + +
54B GLU* 1.3 69.7 + - - +
55B VAL* 3.7 18.8 - - + -
91B TYR* 4.1 15.5 - - + -
98B ILE* 3.5 46.3 + - + +
99B ASP* 5.3 0.2 - - - +
100B ILE* 4.0 30.5 - - + +
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Residues in contact with GLU 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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11B LYS* 3.0 21.3 + - - +
38B ARG* 2.8 39.0 + - - +
39B LEU 3.7 4.0 - - - +
40B GLU* 3.5 35.5 - - + +
53B LYS* 1.3 82.6 + - - +
55B VAL* 1.3 94.2 + - - +
663B ASN* 6.0 4.9 - - - +
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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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38B ARG* 3.2 4.2 - - - -
39B LEU* 3.0 53.3 + - + +
53B LYS* 3.7 16.8 - - - -
54B GLU* 1.3 93.4 + - - +
56B GLY* 1.3 68.5 + - - +
57B MET* 5.3 0.7 - - + -
100B ILE* 3.6 37.2 - - + -
1065B VAL* 4.5 15.5 - - + -
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Residues in contact with GLY 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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37B THR 3.4 5.6 - - - -
38B ARG* 3.0 26.1 - - - +
55B VAL* 1.3 77.7 - - - +
57B MET* 1.3 67.1 + - - +
1065B VAL* 3.1 26.2 - - - +
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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