Contacts of the strand formed by residues 23 - 28 (chain S) in PDB entry 1VQ7
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 LYS 23 (chain S).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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14470 U 5.3 1.6 + - - +
15070 C 2.8 48.7 + - - -
15080 C 4.0 9.8 + - - -
14S ALA 4.4 1.7 - - - +
17S ASP* 3.0 35.8 + - + +
18S MET* 3.2 26.3 + - - +
21S GLN* 2.8 29.3 + - + +
22S ASN* 1.3 76.7 - - - +
24S LEU* 1.3 63.5 + - - +
25S GLN 4.2 0.3 + - - -
51S GLN* 5.9 2.0 - - - +
65S VAL* 3.6 20.9 - - + +
66S VAL 3.2 5.8 - - - +
67S ARG* 3.7 30.1 - - + +
74S ALA* 3.9 2.1 - - - +
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Residues in contact with LEU 24 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
18S MET* 4.7 3.4 - - + -
23S LYS* 1.3 75.2 - - - +
25S GLN* 1.3 61.4 + - - +
26S PHE* 3.4 32.6 - - + -
41S VAL* 4.9 4.5 - - + -
45S TYR* 5.5 1.6 - - + -
47S VAL* 5.7 0.7 - - + -
64S ALA 3.6 0.9 - - - +
65S VAL 3.8 0.2 - - - -
66S VAL* 2.7 39.4 + - + +
68S LEU* 3.6 35.0 - - + -
74S ALA* 3.6 29.8 - - + +
77S VAL* 4.0 18.4 - - + -
78S ALA* 3.7 20.9 - - + +
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Residues in contact with GLN 25 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
14450 G 4.5 1.4 + - - -
14470 U 6.0 0.2 - - - +
8S PRO* 3.6 7.4 - - - +
9S HIS* 2.7 60.0 + - + +
13S LYS* 4.0 8.1 + - - +
14S ALA* 3.4 32.7 + - + +
17S ASP* 3.3 30.7 + - + +
23S LYS 4.2 0.6 + - - -
24S LEU* 1.3 76.3 - - - +
26S PHE* 1.3 59.1 + - - +
63S LYS* 3.9 17.4 + - + +
64S ALA 3.2 3.8 - - - +
65S VAL* 3.9 28.6 - - + +
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Residues in contact with PHE 26 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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5S ILE* 3.7 19.7 - - + -
7S HIS 3.6 3.6 - - - +
8S PRO* 4.1 21.8 - - + -
9S HIS* 3.9 5.8 - - - +
24S LEU* 3.4 48.5 - - + -
25S GLN* 1.3 75.8 - - - +
27S ALA* 1.3 63.2 + - - +
28S VAL* 3.7 16.6 + - + -
37S VAL* 5.7 0.2 - - + -
41S VAL* 4.1 21.5 - - + -
45S TYR* 3.4 41.5 - + - -
63S LYS* 3.4 6.8 - - - +
64S ALA* 2.9 33.7 + - + +
66S VAL* 4.1 14.6 - - + -
81S ILE* 5.8 0.4 - - + -
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Residues in contact with ALA 27 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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5S ILE* 4.1 0.5 - - - -
6S LYS* 2.8 30.2 + - + +
7S HIS* 2.8 47.6 + - + +
9S HIS* 4.3 9.3 - - + +
26S PHE* 1.3 72.0 - - - +
28S VAL* 1.3 61.1 + - - +
61S GLU* 4.5 13.2 - - + +
62S LYS 3.6 6.7 - - - +
63S LYS* 4.8 0.9 - - - +
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Residues in contact with VAL 28 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4S VAL* 3.2 18.2 - - + +
5S ILE* 4.4 7.0 - - + -
6S LYS* 4.2 13.1 + - - +
26S PHE* 4.1 17.3 - - + -
27S ALA* 1.3 77.6 - - - +
29S ASP* 1.3 67.1 + - - +
30S ASP 3.4 0.3 + - - -
32S ALA* 5.0 0.2 - - + -
37S VAL* 4.2 31.6 - - + -
61S GLU* 4.5 1.6 - - - +
62S LYS* 2.8 63.7 + - + +
64S ALA* 4.2 12.8 - - + -
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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