Contacts of the strand formed by residues 31 - 35 (chain C) in PDB entry 1K4R
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 VAL 31 (chain C).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3C CYS* 3.5 3.5 - - - -
10C ASP* 3.4 21.5 - - + +
12C VAL* 3.7 31.2 - - + -
23C LEU* 3.9 17.5 - - + -
24C VAL 4.9 7.2 - - - +
25C LEU* 3.5 28.3 - - + -
30C CYS* 1.3 80.6 - - - +
32C THR* 1.3 67.9 + - - +
33C ILE* 3.8 3.3 + - + +
41C MET 3.6 0.9 - - - +
42C ASP* 3.3 4.0 - - - -
43C VAL* 2.9 41.8 + - + +
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Residues in contact with THR 32 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
3C CYS* 3.6 3.1 - - - +
9C ARG* 2.8 38.3 + - - +
10C ASP 2.8 7.9 + - - -
11C PHE* 3.5 14.7 - - + +
12C VAL 2.9 26.0 + - - +
31C VAL* 1.3 71.7 - - - +
33C ILE* 1.3 62.2 + - - +
34C THR* 4.0 13.0 + - + +
42C ASP* 2.8 23.1 + - - +
146C HIS* 3.8 20.9 - - + +
358C ILE* 4.1 11.0 - - + -
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Residues in contact with ILE 33 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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12C VAL* 3.3 11.4 - - + +
14C GLY 5.6 0.2 - - - +
21C VAL* 4.7 11.2 - - + -
23C LEU* 3.9 21.8 - - + -
31C VAL* 4.3 14.6 - - + +
32C THR* 1.3 74.9 - - - +
34C THR* 1.3 69.0 + - - +
35C ALA* 5.3 0.2 - - + -
39C PRO 4.8 0.3 - - - +
40C SER* 3.3 8.5 - - - -
41C MET* 2.8 47.9 + - + +
43C VAL* 3.8 24.9 - - + -
292C VAL* 4.2 20.6 - - + -
294C LEU* 4.2 26.0 - - + -
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Residues in contact with THR 34 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
11C PHE* 5.5 2.5 - - + -
12C VAL 3.0 5.2 + - - +
13C THR* 3.4 21.4 + - - -
14C GLY 3.0 22.0 + - - -
32C THR* 4.1 17.3 - - + +
33C ILE* 1.3 78.7 - - - +
35C ALA* 1.3 61.9 + - - +
40C SER* 3.5 22.0 - - - +
357C LEU 5.4 2.0 - - - +
358C ILE* 4.2 26.7 - - + +
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Residues in contact with ALA 35 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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13C THR* 5.3 0.4 - - - -
14C GLY* 3.4 19.1 - - - +
15C THR 5.4 0.9 - - - +
18C THR 5.2 5.8 - - - +
33C ILE* 5.3 0.4 - - + -
34C THR* 1.3 79.3 - - - +
36C GLU* 1.3 67.9 + - - +
37C GLY 3.3 0.7 + - - -
38C LYS* 3.0 44.4 + - + +
39C PRO 5.6 0.2 + - - -
40C SER* 4.9 1.0 + - - +
294C LEU* 4.3 18.6 - - + -
299C MET* 5.1 0.5 - - - +
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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