Contacts of the helix formed by residues 8 - 17 (chain A) in PDB entry 5N8A
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 GLY 8 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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7A ARG* 1.3 71.4 - - - +
9A ALA* 1.3 64.6 + - - +
10A ILE 3.3 2.9 + - - -
11A ALA* 3.4 11.1 + - - +
12A ALA* 3.1 21.4 + - - +
48A ASP* 3.0 12.5 + - - -
50A LEU* 3.9 14.8 - - - +
51A ASN* 6.0 0.9 - - - -
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Residues in contact with ALA 9 (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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6A SER* 2.9 21.5 + - - +
7A ARG 3.4 0.8 + - - -
8A GLY* 1.3 77.9 - - - +
10A ILE* 1.3 58.0 + - - +
12A ALA* 3.2 7.0 + - - +
13A ILE* 2.9 35.1 + - + +
21A ILE* 4.2 9.2 - - + -
23A PRO* 3.5 32.3 - - + -
25A LEU* 4.5 3.4 - - + -
48A ASP* 3.1 4.7 + - + +
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Residues in contact with ILE 10 (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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9A ALA* 1.3 76.4 - - - +
11A ALA* 1.3 62.4 + - - +
13A ILE* 3.2 7.8 + - + +
14A MET* 2.9 25.0 + - + +
25A LEU* 4.6 6.3 - - + -
46A MET 3.8 15.5 - - - +
47A SER 4.2 1.3 - - - -
48A ASP* 3.0 29.6 + - + +
51A ASN* 3.4 31.6 - - + +
53A LEU* 4.1 24.9 - - + -
56A PHE* 4.5 17.5 - - + -
118A TYR* 4.0 32.3 - - + -
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Residues in contact with ALA 11 (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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8A GLY* 3.4 12.8 + - - +
9A ALA 3.3 0.2 - - - -
10A ILE* 1.3 78.6 - - - +
12A ALA* 1.3 55.2 + - - +
15A GLN* 2.7 61.6 + - - +
16A LYS* 5.2 0.7 - - - -
48A ASP* 4.4 0.8 + - - -
51A ASN* 4.9 6.1 + - - +
118A TYR* 3.9 19.0 - - + -
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Residues in contact with ALA 12 (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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8A GLY 3.1 14.5 + - - +
9A ALA* 3.2 11.6 + - - +
11A ALA* 1.3 75.4 - - - +
13A ILE* 1.3 64.3 + - - +
16A LYS* 3.0 44.7 + - + +
17A GLY 3.4 2.1 + - - -
18A ASP* 3.6 13.8 + - + +
21A ILE* 4.5 12.6 - - + -
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Residues in contact with ILE 13 (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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9A ALA* 2.9 24.2 + - + +
10A ILE* 3.7 8.5 - - + +
12A ALA* 1.3 77.3 - - - +
14A MET* 1.3 64.3 + - + +
17A GLY* 3.1 24.8 + - - -
18A ASP 3.9 10.3 - - - +
21A ILE* 3.9 10.3 - - + -
23A PRO* 4.5 11.9 - - + -
25A LEU* 5.5 2.9 - - + -
56A PHE* 5.2 11.7 - - + -
82A PHE* 3.8 35.4 - - + -
84A VAL* 3.9 28.2 - - + +
92A ARG* 5.3 1.6 + - - -
94A VAL* 4.1 22.0 - - + -
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Residues in contact with MET 14 (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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10A ILE* 2.9 21.1 + - + +
13A ILE* 1.3 81.7 - - + +
15A GLN* 1.3 58.9 + - - +
53A LEU* 3.6 37.9 - - + -
55A SER* 4.6 0.4 - - - -
84A VAL* 5.8 0.9 - - - -
92A ARG* 3.3 52.1 + - + +
94A VAL* 4.0 17.7 - - - -
118A TYR* 3.7 24.6 + - + +
120A GLU* 3.4 41.7 - - + +
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Residues in contact with GLN 15 (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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11A ALA* 2.7 39.3 + - - +
14A MET* 1.3 75.5 - - - +
16A LYS* 1.3 74.0 + - + +
17A GLY 3.5 0.2 - - - -
92A ARG* 5.2 3.8 + - - -
118A TYR* 3.1 29.0 + - - +
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Residues in contact with LYS 16 (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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11A ALA* 5.2 0.4 - - - +
12A ALA* 3.0 32.0 + - + +
15A GLN* 1.3 94.6 + - + +
17A GLY* 1.3 63.9 + - - +
18A ASP* 3.2 12.8 + - + +
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Residues in contact with GLY 17 (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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13A ILE 3.1 20.0 + - - -
14A MET 4.6 0.6 - - - -
15A GLN 3.5 1.8 - - - -
16A LYS* 1.3 77.7 - - - +
18A ASP* 1.3 64.3 + - - +
19A THR* 3.2 16.1 + - - +
84A VAL* 5.5 5.8 - - - -
92A ARG* 5.6 5.0 - - - +
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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