Contacts of the strand formed by residues 45 - 49 (chain D) in PDB entry 2Q8T
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 ILE 45 (chain D).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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33D TYR* 4.3 11.0 - - + -
34D TYR 3.6 4.0 - - - +
35D GLU* 3.6 34.5 - - + +
44D GLY* 1.3 74.2 - - - +
46D VAL* 1.3 70.0 + - - +
47D PHE* 4.1 11.2 - - + -
55D VAL 3.5 0.7 - - - +
56D CYS* 3.8 0.4 - - - -
57D THR* 2.9 53.6 + - - +
59D PRO* 3.8 23.8 - - + -
64D VAL* 4.0 9.4 - - + -
68D ILE* 4.1 29.6 - - + -
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Residues in contact with VAL 46 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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13C PRO* 4.0 11.4 - - + -
17D CYS* 3.7 28.0 - - - -
33D TYR* 3.0 6.9 - - - +
34D TYR* 2.8 74.9 + - + +
36D THR* 3.8 15.0 - - + -
45D ILE* 1.3 72.4 - - - +
47D PHE* 1.3 62.8 + - - +
48D ILE* 3.9 4.7 - - + -
54D SER* 3.7 26.7 - - - -
55D VAL 3.4 6.5 - - - +
56D CYS* 4.3 1.8 - - - -
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Residues in contact with PHE 47 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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25D ILE* 5.0 4.9 - - + -
30D ILE* 3.8 28.0 - - + -
32D ASP 3.5 1.1 - - - +
33D TYR* 3.6 13.7 - - + -
45D ILE* 3.8 5.1 + - + -
46D VAL* 1.3 73.3 - - - +
48D ILE* 1.3 62.0 + - - +
49D THR* 4.0 3.1 + - + -
53D HIS 3.4 2.9 - - - +
54D SER* 3.4 2.4 - - - -
55D VAL* 2.9 41.1 + - + +
57D THR* 3.5 35.0 - - + -
63D TRP* 3.6 26.7 - + - -
64D VAL* 4.0 10.3 - - + -
67D TYR* 3.8 16.8 - + + -
68D ILE* 3.5 25.8 - - + -
71D MET* 3.3 23.6 - - + -
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Residues in contact with ILE 48 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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50B LYS* 6.3 2.5 - - + -
30D ILE* 4.9 1.1 - - - -
31D MET* 2.8 33.6 + - + +
32D ASP* 2.8 34.4 + - + +
34D TYR* 4.0 20.0 - - + -
46D VAL* 3.9 10.1 - - + +
47D PHE* 1.3 78.1 - - - +
49D THR* 1.3 67.3 + - - +
52D GLY* 4.4 12.8 - - - +
53D HIS 3.2 5.6 - - - +
54D SER* 3.0 29.8 - - - +
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Residues in contact with THR 49 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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25D ILE* 4.4 19.5 - - + -
29D ARG* 3.1 18.2 - - + +
30D ILE* 4.5 1.3 - - - +
31D MET* 3.9 6.1 - - - +
47D PHE* 4.7 4.9 - - + +
48D ILE* 1.3 79.9 - - - +
50D LYS* 1.3 60.0 + - - +
51D ARG* 3.4 13.4 + - - +
52D GLY* 2.8 19.1 + - - -
53D HIS* 2.9 40.0 + - + +
55D VAL* 4.0 21.5 - - + -
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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