Contacts of the strand formed by residues 5 - 12 (chain D) in PDB entry 5IRC
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 ARG 5 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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4D ILE* 1.3 78.2 - - - +
6D LYS* 1.3 75.1 + - - +
54D GLU* 3.4 20.7 - - + +
78D ASP* 4.5 1.0 - - - +
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Residues in contact with LYS 6 (chain D).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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4D ILE* 3.8 18.2 + - + +
5D ARG* 1.3 83.3 + - - +
7D LYS* 1.3 54.5 + - - +
53D VAL* 4.1 15.7 - - + -
54D GLU 3.1 5.9 + - - +
55D LEU* 3.4 18.9 - - + +
56D ALA* 2.7 34.7 + - - +
78D ASP* 3.4 24.8 + - - +
178D ALA* 3.8 35.7 + - + +
179D LEU* 4.2 22.0 + - + +
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Residues in contact with LYS 7 (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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6D LYS* 1.3 73.1 - - - +
8D LEU* 1.3 61.7 + - - +
9D VAL* 3.6 3.1 - - - -
55D LEU* 4.6 0.4 - - - -
56D ALA* 3.7 7.0 - - + -
58D TRP* 3.4 53.8 - - + +
72D LEU 5.0 0.2 + - - -
73D SER 2.8 28.6 + - - -
75D PRO* 2.7 24.9 + - - +
76D ASP* 3.6 21.3 - - + +
77D THR* 3.4 11.6 - - - +
78D ASP* 2.7 44.0 + - - +
79D VAL* 3.2 9.4 + - - +
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Residues in contact with LEU 8 (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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6D LYS 4.1 0.4 + - - -
7D LYS* 1.3 74.5 - - - +
9D VAL* 1.3 68.6 + - - +
10D ILE* 4.1 2.9 - - + +
22D LEU* 4.2 10.5 - - + -
55D LEU* 4.0 20.9 - - + -
56D ALA 2.7 16.4 + - - +
57D LEU* 4.0 15.0 - - + -
58D TRP* 2.8 36.1 + - - +
79D VAL* 3.3 20.0 - - + +
81D LEU* 3.8 33.9 - - + -
171D PHE* 4.2 6.5 - - + -
174D ALA* 3.8 29.6 - - + -
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Residues in contact with VAL 9 (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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7D LYS* 3.6 9.2 - - - -
8D LEU* 1.3 81.2 - - - +
10D ILE* 1.3 62.1 + - - +
11D VAL* 4.0 22.0 - - + -
58D TRP* 3.6 10.3 - - + +
60D THR* 4.0 16.8 - - + -
73D SER* 3.4 19.1 - - - +
74D TYR* 4.1 15.9 - - + -
77D THR* 3.2 32.5 - - + +
79D VAL 3.1 6.3 + - - -
80D ILE* 3.3 10.8 - - + +
81D LEU 2.9 21.8 + - - -
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Residues in contact with ILE 10 (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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8D LEU* 4.1 6.7 - - + +
9D VAL* 1.3 71.5 - - - +
11D VAL* 1.3 59.7 - - - +
18D LYS* 3.7 34.2 - - + +
21D LEU* 3.8 15.3 - - + -
22D LEU* 3.6 17.7 - - + -
58D TRP 3.1 15.1 + - - +
59D ASP* 3.6 21.5 - - - +
60D THR* 2.7 31.0 + - - +
81D LEU* 3.3 24.7 - - + +
83D CYS* 3.6 26.0 - - - -
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Residues in contact with VAL 11 (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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9D VAL* 4.0 8.1 - - + -
10D ILE* 1.3 80.1 - - - +
12D GLY* 1.3 59.9 + - - +
18D LYS* 3.4 9.5 - - - +
60D THR* 3.8 11.0 - - + +
70D ARG* 4.1 6.1 - - - -
74D TYR* 3.6 33.4 - - + +
80D ILE* 4.2 5.2 - - + -
81D LEU 2.9 12.9 + - - +
82D MET* 4.1 15.3 - - + -
83D CYS* 2.8 28.6 + - - +
99D TRP* 4.1 16.2 - - + -
103D VAL* 4.0 23.1 - - + -
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Residues in contact with GLY 12 (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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11D VAL* 1.3 79.1 - - - +
13D ASP* 1.3 69.1 + - - +
16D CYS* 4.0 2.0 - - - -
18D LYS* 3.0 15.5 + - - +
60D THR* 5.0 0.2 + - - -
62D GLY* 3.2 13.3 - - - -
83D CYS 3.4 15.7 - - - -
99D TRP* 3.3 23.6 - - - -
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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