Contacts of the helix formed by residues 1968 - 1971 (chain B) in PDB entry 5WBY
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 HIS1968 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1932B ILE* 4.1 23.8 - - + +
1933B ASP* 3.5 25.6 + - - -
1936B LEU* 4.0 28.7 - - + +
1964B ILE* 3.0 14.8 - - + +
1967B TYR* 1.3 89.8 - - + +
1969B PRO* 1.3 73.8 - - - +
1970B GLN 3.3 2.2 - - - +
1971B ALA* 3.5 10.3 + - + +
1972B LEU* 4.1 2.6 + - - +
2144B TYR* 3.1 38.1 + - + +
2146B PRO* 4.2 12.3 - - + +
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Residues in contact with PRO1969 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1964B ILE 4.4 0.2 - - - +
1965B GLY* 3.4 22.2 - - - +
1966B ARG 4.2 4.7 - - - +
1967B TYR 3.9 0.4 - - - -
1968B HIS* 1.3 89.3 - - - +
1970B GLN* 1.3 70.3 + - + +
1972B LEU* 3.0 13.6 + - + -
1973B ILE* 3.1 17.4 + - - +
1998B MET* 3.6 21.9 - - + +
2001B HIS* 4.3 1.6 - - + +
2002B SER* 3.8 20.6 - - - +
2005B LEU* 3.8 17.5 - - + -
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Residues in contact with GLN1970 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1968B HIS 3.3 0.4 - - - -
1969B PRO* 1.3 82.9 - - + +
1971B ALA* 1.3 60.7 + - - +
1973B ILE* 3.5 27.0 + - - +
1974B TYR* 4.8 10.0 - - - -
1975B PRO* 5.8 0.2 - - - +
2005B LEU* 3.9 16.2 - - + +
2137B GLU 2.8 28.1 + - - -
2139B ALA* 3.1 30.4 + - - +
2144B TYR* 3.6 33.5 - - + +
2150B ILE* 4.0 23.1 - - + +
2152B ARG* 3.9 12.3 - - - +
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Residues in contact with ALA1971 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1936B LEU* 3.7 29.2 - - + -
1939B ILE* 3.9 15.2 - - + +
1968B HIS 3.5 12.2 + - - +
1969B PRO 3.1 1.0 - - - -
1970B GLN* 1.3 79.9 - - - +
1972B LEU* 1.3 57.9 + - + +
1975B PRO* 3.8 15.1 - - - +
2144B TYR* 3.7 22.4 - - + -
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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
------------------------------------------------------------
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