Contacts of the strand formed by residues 20 - 25 (chain F) in PDB entry 43C9
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 ILE 20 (chain F).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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6F GLU* 4.2 3.1 - - + -
7F SER 3.3 11.9 - - - +
8F GLY* 4.4 3.6 - - - -
9F PRO* 4.7 0.2 - - + -
18F LEU* 4.1 19.3 - - + +
19F SER* 1.3 78.4 - - - +
21F THR* 1.3 70.8 + - - +
22F CYS 4.3 0.2 - - - -
36F TRP* 3.3 26.9 - - + -
79F PHE* 3.7 2.9 - - - +
80F LEU* 2.9 40.4 + - + +
90F TYR* 3.3 44.4 - - + -
107F THR* 3.7 21.8 - - + -
109F VAL* 4.0 7.9 - - + -
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Residues in contact with THR 21 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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5F VAL 3.4 2.6 - - - +
6F GLU* 3.2 2.3 - - - -
7F SER* 2.8 50.0 + - - -
19F SER 5.0 2.1 + - - -
20F ILE* 1.3 75.4 - - - +
22F CYS* 1.3 64.1 + - - +
23F THR* 4.0 18.4 - - - +
36F TRP* 4.2 2.9 - - - -
77F GLN* 4.4 11.0 - - + +
78F ILE 3.6 5.4 - - - +
79F PHE* 3.4 34.6 - - + -
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Residues in contact with CYS 22 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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4F LEU* 4.3 4.3 - - - -
5F VAL 3.8 4.3 - - - -
6F GLU* 4.3 0.9 - - - +
21F THR* 1.3 73.8 - - - +
23F THR* 1.3 61.0 + - - +
24F VAL* 3.5 21.7 + - - -
34F VAL* 4.6 2.2 - - - -
36F TRP* 3.6 9.6 - - + -
77F GLN* 3.5 0.9 - - - -
78F ILE* 2.7 54.6 + - + +
92F CYS* 2.0 54.3 - - + -
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Residues in contact with THR 23 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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3F GLN 3.9 1.2 - - - +
4F LEU* 3.6 0.7 - - - -
5F VAL* 2.9 44.0 + - + +
7F SER* 5.9 1.8 - - - -
21F THR* 3.7 7.3 + - - +
22F CYS* 1.3 71.7 - - - +
24F VAL* 1.3 67.8 + - - +
25F SER* 5.1 6.4 + - - +
75F LYS 5.8 1.1 - - - +
76F SER* 4.0 7.0 - - - +
77F GLN* 3.5 25.5 + - + +
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Residues in contact with VAL 24 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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2F VAL* 5.8 0.9 - - + -
3F GLN 3.5 2.7 - - - +
4F LEU* 3.2 34.8 - - + -
22F CYS* 3.6 9.6 - - - -
23F THR* 1.3 78.5 - - - +
25F SER* 1.3 67.5 + - - +
27F ILE* 3.5 33.0 - - + +
29F LEU* 4.2 12.3 - - + -
34F VAL* 5.4 2.9 - - + -
76F SER* 2.9 38.4 + - - +
78F ILE* 3.4 26.7 - - + -
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Residues in contact with SER 25 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1F GLN 3.9 2.2 - - - +
2F VAL* 3.0 3.0 + - - -
3F GLN* 2.7 54.4 + - - +
5F VAL* 6.1 0.2 - - - +
23F THR* 5.1 7.9 + - - +
24F VAL* 1.3 78.3 - - - +
26F GLY* 1.3 58.4 + - - +
27F ILE 3.7 2.0 - - - -
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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