Contacts of the strand formed by residues 3 - 8 (chain D) in PDB entry 4B3E
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 3 (chain D).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1D ALA 3.7 3.0 + - - +
2D THR* 1.3 93.2 + - + +
4D ALA* 1.3 64.1 + - - +
20D PHE 3.4 7.2 - - - +
21D GLU* 2.8 37.2 + - + -
32D TRP* 5.9 2.7 - - + -
106D LEU* 4.2 3.8 - - - +
113D ILE* 5.0 1.9 - - - +
151D ILE* 3.8 8.5 - - - +
152D ALA* 3.1 35.8 + - + +
153D GLN* 3.3 30.1 - - - +
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Residues in contact with ALA 4 (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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3D LYS* 1.3 75.5 - - - +
5D VAL* 1.3 63.7 + - - +
19D ASN* 3.6 4.2 + - - +
20D PHE* 2.9 43.9 + - + +
106D LEU* 4.1 3.6 - - + +
113D ILE* 3.5 24.9 - - + -
149D ILE* 3.8 11.2 - - + -
150D GLY 3.1 15.7 - - - +
152D ALA* 3.8 7.3 - - - +
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Residues in contact with VAL 5 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
4D ALA* 1.3 76.5 - - - +
6D CYS* 1.3 63.4 + - - +
7D VAL* 5.5 1.1 - - + +
17D ILE* 4.2 4.5 - - + -
18D ILE 3.4 12.8 - - - +
19D ASN* 3.7 18.4 - - - +
20D PHE* 4.4 2.5 - - - -
148D VAL 3.9 0.7 - - - +
149D ILE* 3.5 2.2 - - - -
150D GLY 2.8 33.2 + - - +
152D ALA* 4.0 12.8 - - + -
51I GLY 3.5 20.8 - - - +
52I ASP* 3.7 26.9 - - + +
53I ASN 5.0 0.7 - - - +
54I THR* 3.8 24.9 - - + -
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Residues in contact with CYS 6 (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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5D VAL* 1.3 79.3 - - - +
7D VAL* 1.3 61.6 + - - +
8D LEU* 3.4 23.8 - - + +
17D ILE* 3.4 3.1 - - - +
18D ILE 2.8 37.7 + - - +
20D PHE* 4.2 7.4 - - + -
117D LEU* 3.8 15.7 - - + -
147D GLY* 3.3 38.8 - - - -
148D VAL 4.0 6.5 - - - -
149D ILE* 4.1 12.8 - - + -
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Residues in contact with VAL 7 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
5D VAL* 5.5 1.3 - - + -
6D CYS* 1.3 74.1 - - - +
8D LEU* 1.3 68.4 + - - +
9D LYS* 3.5 31.9 + - + +
16D GLY 3.5 8.3 - - - +
17D ILE* 4.7 7.2 - - + +
146D CYS 3.6 0.9 - - - +
147D GLY* 3.4 18.7 - - - -
148D VAL 4.7 2.4 + - - -
53I ASN* 3.6 43.1 - - + +
54I THR* 3.7 18.4 - - + +
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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 CYS* 3.4 28.5 - - - +
7D VAL* 1.3 73.9 - - - +
9D LYS* 1.3 66.0 + - - +
15D GLN* 3.3 6.5 - - - +
16D GLY* 2.8 42.2 + - - +
18D ILE* 3.7 25.6 - - + -
35D ILE* 5.1 11.4 - - + -
45D PHE* 5.8 0.9 - - + -
117D LEU* 3.2 39.0 - - + +
118D VAL* 4.5 1.3 - - - +
119D VAL* 4.9 6.7 - - + +
145D ALA* 4.1 14.4 - - + +
146D CYS* 3.5 12.3 - - - +
147D GLY 3.6 4.0 - - - +
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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