Contacts of the strand formed by residues 34 - 38 (chain A) in PDB entry 4ED8
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 CYS 34 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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19A VAL* 4.1 15.2 - - - +
22A GLU* 5.7 0.4 - - - -
23A GLN* 4.4 3.4 - - - +
29A LEU* 4.0 44.6 - - - +
32A LYS* 3.7 10.3 - - + +
33A PRO* 1.3 75.6 - - - +
35A ALA* 1.3 72.7 + - - +
36A VAL* 5.7 0.7 - - - -
50A VAL* 3.7 0.5 - - - -
51A SER* 2.8 35.9 + - - +
54A ALA* 3.7 4.9 - - - +
75A LEU* 3.8 3.1 - - - -
76A LEU* 3.2 16.6 - - + +
78A ALA* 4.9 3.8 - - - -
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Residues in contact with ALA 35 (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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19A VAL* 4.2 3.1 - - - -
34A CYS* 1.3 78.3 - - - +
36A VAL* 1.3 65.1 + - - +
47A ILE* 4.0 24.5 - - + -
49A ALA 3.1 14.4 - - - +
50A VAL* 4.4 5.2 - - + -
75A LEU* 4.2 7.4 - - + -
76A LEU 2.9 6.1 + - - -
77A LEU* 3.4 21.8 - - + +
78A ALA 3.0 23.4 + - - -
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Residues in contact with VAL 36 (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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18A PHE* 3.7 36.3 - - + +
19A VAL* 3.8 10.1 - - + +
22A GLU* 3.8 15.0 - - + -
34A CYS* 5.7 0.9 - - - -
35A ALA* 1.3 75.5 - - - +
37A VAL* 1.3 63.4 + - - +
47A ILE* 3.5 3.8 - - - -
48A ILE* 2.9 35.3 + - + +
49A ALA* 2.9 17.9 + - + +
78A ALA* 3.3 11.2 - - + +
80A VAL* 3.7 26.7 - - + +
92A TYR* 4.0 10.5 - - - +
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Residues in contact with VAL 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 VAL* 1.3 72.8 - - - +
38A GLN* 1.3 60.2 + - - +
39A TYR 4.1 10.1 + - - +
40A LYS* 4.6 5.8 - - + -
45A GLY* 4.6 3.1 - - - -
46A GLY 3.3 7.2 - - - +
47A ILE* 3.6 29.2 - - + -
48A ILE* 5.1 0.9 - - - -
65A ALA* 4.0 14.4 - - + -
77A LEU* 3.6 33.2 - - + -
78A ALA 2.9 18.7 + - - +
79A GLN* 3.5 20.2 - - + +
80A VAL* 3.0 29.1 + - - +
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Residues in contact with GLN 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 VAL* 1.3 72.2 - - - +
39A TYR* 1.3 80.8 + - + +
46A GLY* 2.9 33.3 + - - +
48A ILE* 3.9 22.0 - - + +
80A VAL* 4.4 9.9 - - + +
87A ALA* 3.6 29.2 - - + +
89A LEU* 4.1 13.9 - - - +
501P DTP 5.7 0.5 - - - -
3T T 3.1 42.8 + - - +
4T T 3.7 19.3 - - - +
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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