Contacts of the helix formed by residues 106 - 111 (chain B) in PDB entry 5DST
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 106 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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101B ASN 4.2 1.0 - - - +
102B SER* 2.7 27.3 - - - +
103B MET 3.0 7.7 + - - -
105B HIS* 1.3 97.3 + - - +
107B LYS* 1.3 59.1 + - - +
108B HIS* 3.1 19.4 - - + -
109B VAL* 3.0 32.8 + - + +
110B PHE* 3.5 8.8 - - + -
215B PHE* 5.5 1.3 - - + -
318B CYS* 3.0 24.4 - - - +
319B HIS* 3.3 26.6 - - - +
320B LYS 4.9 0.2 - - - +
322B MET* 5.0 0.9 - - - +
303D TYR* 2.9 14.5 + - - -
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Residues in contact with LYS 107 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
103B MET 3.4 2.0 + - - -
104B TYR* 3.1 38.4 + - - +
105B HIS 3.7 1.6 - - - -
106B ASN* 1.3 76.6 - - - +
108B HIS* 1.3 56.3 + - - +
110B PHE 3.1 2.1 + - - +
111B LYS* 2.9 34.9 + - + +
131B LYS 4.2 15.9 - - - -
132B ALA* 3.4 30.3 - - + +
345D TYR* 3.7 23.6 + - + +
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Residues in contact with HIS 108 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
105B HIS 4.8 0.4 + - - -
106B ASN* 3.8 34.4 - - + -
107B LYS* 1.3 79.0 + - - +
109B VAL* 1.3 78.6 + - + +
111B LYS* 4.3 9.9 + - - +
113B LYS* 5.5 0.5 - - - +
317B LYS 5.3 3.6 + - - -
319B HIS* 4.5 6.9 - - + +
347D THR* 3.9 31.1 + - + +
382D LEU* 3.1 53.2 - - + +
383D CYS* 5.2 2.0 - - + -
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Residues in contact with VAL 109 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
106B ASN* 3.0 21.4 + - + +
108B HIS* 1.3 104.3 - - + +
110B PHE* 1.3 63.1 + - + +
113B LYS* 2.9 28.4 - - - +
181B ILE* 3.6 13.6 - - + +
213B LEU* 3.2 34.8 - - + -
215B PHE* 4.2 15.7 - - + -
317B LYS* 4.9 11.2 - - + +
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Residues in contact with PHE 110 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
102B SER 4.3 0.4 - - - -
103B MET* 3.7 52.0 - - + -
106B ASN 3.5 15.3 - - - -
107B LYS 3.1 2.4 + - - +
109B VAL* 1.3 82.5 - - + +
111B LYS* 1.3 66.6 + - - +
112B ASP 3.2 0.9 + - - -
113B LYS* 3.0 17.1 + - - +
115B VAL* 3.9 17.9 - - + -
129B ALA* 4.4 9.9 - - + +
132B ALA* 3.7 24.7 - - + +
133B GLY 4.2 0.9 - - - -
134B ALA* 3.5 12.7 - - + +
181B ILE* 3.6 29.4 - - + -
183B ILE* 4.3 4.9 - - + -
215B PHE* 3.8 37.9 - + - -
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Residues in contact with LYS 111 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
107B LYS* 2.9 17.8 + - + +
108B HIS* 4.3 8.7 + - - +
109B VAL 3.6 1.4 - - - -
110B PHE* 1.3 74.5 - - - +
112B ASP* 1.3 92.1 + - - +
113B LYS* 3.2 12.6 + - - +
132B ALA 4.1 1.5 + - - +
133B GLY* 3.5 16.6 - - - +
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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
------------------------------------------------------------
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