Contacts of the helix formed by residues 8 - 16 (chain A) in PDB entry 1V8P
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 ASP 8 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6A LEU 4.0 1.2 + - - -
7A VAL* 1.3 73.9 - - - +
9A ALA* 1.3 55.6 + - - +
10A SER* 3.1 10.5 + - - -
11A ALA* 2.8 25.5 + - - +
12A LEU* 2.8 36.0 + - - +
35A THR* 4.1 3.8 - - - -
92A ASP* 5.4 0.7 - - - +
95A TYR* 3.4 37.6 - - + -
106A LEU* 4.7 2.9 - - + -
107A VAL 3.2 13.8 + - - +
108A THR* 2.8 25.8 + - - -
110A ASP* 4.8 0.5 - - - +
113A LEU* 3.9 9.4 - - - +
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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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8A ASP* 1.3 75.1 - - - +
10A SER* 1.3 60.7 + - - +
12A LEU* 3.7 6.2 - - - +
13A TYR* 2.8 34.7 + - - +
35A THR* 4.2 5.6 - - + -
38A GLU* 3.5 41.7 - - + +
39A ALA* 4.4 9.9 - - - +
95A TYR* 3.8 5.8 + - - +
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Residues in contact with SER 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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8A ASP* 3.1 21.9 + - - -
9A ALA* 1.3 77.2 - - - +
11A ALA* 1.3 60.6 + - - +
13A TYR* 3.6 6.5 + - - +
14A ALA* 3.4 20.4 + - - +
108A THR* 3.8 1.9 + - - -
109A GLN* 3.4 22.1 + - - +
110A ASP* 3.9 4.3 + - - +
49C LEU* 3.5 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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7A VAL* 3.5 13.2 - - + -
8A ASP* 2.8 10.0 + - - +
10A SER* 1.3 74.4 + - - +
12A LEU* 1.3 65.8 + - - +
13A TYR 3.1 1.3 - - - -
14A ALA* 3.1 3.1 + - - +
15A LEU* 2.9 28.3 + - + +
107A VAL* 3.3 41.7 - - + +
108A THR* 4.1 3.8 - - - -
109A GLN* 4.2 2.4 - - - +
123A VAL* 3.8 15.3 - - + -
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Residues in contact with LEU 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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7A VAL* 3.3 8.5 - - + +
8A ASP 2.8 23.7 + - - +
9A ALA* 3.7 3.8 - - - +
11A ALA* 1.3 72.4 - - - +
13A TYR* 1.3 67.0 + - - +
15A LEU* 3.5 5.2 + - - +
16A ALA* 3.1 20.2 + - + +
31A ILE* 4.4 6.3 - - + -
35A THR* 4.0 11.7 - - + -
39A ALA* 4.3 8.1 - - + -
61A LEU* 3.8 20.9 - - + -
64A VAL* 4.0 9.3 - - + +
65A LEU* 3.5 33.9 - - + -
68A PHE* 3.8 38.6 - - + -
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Residues in contact with TYR 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 2.8 17.6 + - - +
10A SER* 3.6 8.3 - - - +
11A ALA 3.1 0.2 - - - -
12A LEU* 1.3 79.0 - - + +
14A ALA* 1.3 63.3 + - - +
16A ALA* 3.4 17.0 - - + +
17A ALA* 4.5 2.1 + - - +
39A ALA* 4.0 23.1 - - + -
42A ALA* 3.9 25.1 - - + -
43A LEU* 3.5 20.8 + - - +
46A GLU* 3.0 37.1 + - - -
51A ARG* 4.9 2.7 + - - -
61A LEU* 4.4 17.7 - - + -
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Residues in contact with ALA 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 SER 3.4 9.4 + - - +
11A ALA 3.1 7.4 + - - +
13A TYR* 1.3 73.8 - - - +
15A LEU* 1.3 54.8 + - - +
16A ALA 2.9 4.0 - - - -
17A ALA* 2.8 35.8 + - - +
18A HIS* 3.9 9.2 + - + -
109A GLN* 4.1 11.4 - - + +
123A VAL* 4.0 20.6 - - + -
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Residues in contact with LEU 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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7A VAL* 4.0 26.2 - - + -
11A ALA* 2.9 24.3 + - + +
12A LEU* 3.7 5.2 - - - +
14A ALA* 1.3 76.9 - - - +
16A ALA* 1.3 56.8 + - - +
17A ALA 2.9 0.4 - - - -
18A HIS* 2.8 23.4 + - + +
19A TYR 3.6 0.7 + - - -
22A TRP* 2.8 45.4 + - + +
29A LEU* 5.4 1.8 - - + -
68A PHE* 4.8 11.0 - - + -
123A VAL* 3.6 28.3 - - + -
126A LEU* 4.0 28.7 - - + -
127A LEU* 4.5 11.0 - - + -
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Residues in contact with ALA 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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12A LEU* 3.1 15.9 + - + +
13A TYR* 3.4 17.9 - - + +
14A ALA 2.8 1.4 + - - -
15A LEU* 1.3 74.8 - - - +
17A ALA* 1.3 57.5 + - - +
18A HIS 3.4 0.2 - - - -
19A TYR* 4.6 4.5 + - - +
22A TRP* 4.9 0.4 - - - -
60A HIS* 2.8 36.5 + - + +
61A LEU* 5.6 6.5 - - + -
64A VAL* 4.1 29.5 - - + +
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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