Contacts of the strand formed by residues 13 - 22 (chain A) in PDB entry 2KV3
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 ASN 13 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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9A TYR* 4.1 3.1 - - - -
10A HIS* 2.4 48.4 + - - +
11A LYS* 2.7 27.4 + - - +
12A SER* 1.3 80.9 - - - +
14A CYS* 1.3 70.5 + - - +
15A TYR* 4.0 7.1 + - - +
128A LYS* 2.8 29.2 + - - +
129A TYR 3.7 14.6 - - - +
131A PRO* 3.9 17.0 - - + -
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Residues in contact with CYS 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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3A CYS* 2.0 51.8 - - + -
7A TRP* 3.3 20.4 - - + +
8A PHE 4.6 0.2 - - - -
9A TYR* 5.8 0.4 - - - -
12A SER 5.5 1.1 - - - -
13A ASN* 1.3 79.2 - - - +
15A TYR* 1.3 61.7 + - - +
128A LYS* 4.7 0.2 - - - +
129A TYR* 3.0 42.2 + - + +
130A ARG 6.5 0.2 - - - -
131A PRO* 5.2 8.2 - - - +
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Residues in contact with TYR 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 TRP* 2.9 22.0 + - - +
8A PHE* 4.2 21.1 + + + +
10A HIS* 3.5 43.1 - + + +
13A ASN* 4.7 10.1 - - - +
14A CYS* 1.3 75.0 - - - +
16A GLY* 1.3 61.5 + - - +
17A TYR* 6.0 3.8 - + - -
52A ILE* 4.3 26.0 - - + -
55A TYR* 4.1 21.3 - - - +
56A ILE* 5.0 4.9 - - + +
126A LEU* 4.4 23.6 - - + -
127A CYS 3.8 13.2 - - - +
128A LYS* 4.3 13.0 - - + +
129A TYR* 4.4 0.7 - - - -
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Residues in contact with GLY 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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7A TRP* 3.7 12.0 - - - -
8A PHE* 6.5 0.7 - - - -
15A TYR* 1.3 80.0 - - - +
17A TYR* 1.3 65.5 + - - -
18A PHE* 3.3 21.6 - - - -
126A LEU* 3.9 5.5 - - - +
127A CYS 3.4 20.2 + - - +
129A TYR* 4.9 0.4 - - - -
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Residues in contact with TYR 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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8A PHE* 5.5 15.7 - + - -
15A TYR* 6.1 4.3 - + - -
16A GLY* 1.3 78.5 - - - -
18A PHE* 1.3 68.4 + - - +
19A ARG* 4.3 34.0 + - + -
56A ILE* 5.2 9.2 - - + -
63A GLN* 6.1 1.1 - - - -
65A ILE* 5.8 6.5 - - + -
125A PHE 4.4 1.3 - - - +
126A LEU* 4.1 24.9 - - + +
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Residues in contact with PHE 18 (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 TRP* 5.0 13.0 - + - -
16A GLY* 3.3 25.4 - - - -
17A TYR* 1.3 79.3 - - - +
19A ARG* 1.3 61.0 + - - +
20A LYS* 3.1 23.3 + - + +
124A HIS* 3.7 4.2 - - - +
125A PHE* 3.4 65.6 + + + +
127A CYS* 4.0 17.9 - - + -
129A TYR* 4.4 12.1 - + - -
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Residues in contact with ARG 19 (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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17A TYR* 4.3 29.0 + - + -
18A PHE* 1.3 70.9 - - - +
20A LYS* 1.3 77.0 + - + +
21A LEU* 4.8 2.1 - - - +
63A GLN* 4.2 23.6 - - - +
124A HIS* 3.4 24.8 + - + +
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Residues in contact with LYS 20 (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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18A PHE* 3.1 21.9 + - + +
19A ARG* 1.3 99.7 - - - +
21A LEU* 1.3 64.7 + - - +
22A ARG* 3.2 18.3 + - + +
123A GLN 3.0 14.6 - - - +
124A HIS* 3.3 7.7 - - - -
125A PHE* 3.3 17.6 - - + -
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Residues in contact with LEU 21 (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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19A ARG 4.8 1.8 - - - +
20A LYS* 1.3 71.8 - - - +
22A ARG* 1.3 71.2 + - - +
121A LYS* 6.1 0.7 - - - +
122A ARG* 3.7 39.2 + - + +
123A GLN* 3.6 11.0 - - - -
124A HIS* 3.6 24.9 - - + +
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Residues in contact with ARG 22 (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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20A LYS* 3.2 14.1 + - + +
21A LEU* 1.3 84.4 - - - +
23A ASN* 1.3 73.7 + - - +
24A TRP 3.6 0.2 + - - -
26A ASP* 2.9 38.4 + - + +
27A ALA* 4.1 7.0 - - - +
30A GLU* 4.0 18.0 + - - +
66A TRP* 4.0 4.5 - - - -
122A ARG* 3.6 9.6 - - - +
123A GLN 3.0 21.9 + - - +
125A PHE* 3.5 31.4 - - + -
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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