Contacts of the helix formed by residues 858 - 865 (chain B) in PDB entry 3LZB
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 ALA 858 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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856B TRP 3.9 0.6 + - - -
857B MET* 1.3 77.7 - - - +
859B LEU* 1.3 66.6 + - - +
860B GLU* 3.3 24.5 - - - +
861B SER* 3.0 16.0 + - - +
862B ILE* 3.0 10.9 + - - +
871B SER* 3.9 17.5 + - - -
874B TRP* 3.4 40.9 - - + +
875B SER* 4.9 0.2 + - - -
934B ARG* 4.0 0.4 - - - +
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Residues in contact with LEU 859 (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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857B MET 3.8 1.0 + - - -
858B ALA* 1.3 72.4 - - - +
860B GLU* 1.3 57.1 + - - +
862B ILE* 3.2 8.6 + - + +
863B LEU* 2.7 55.8 + - + +
874B TRP* 4.2 15.3 - - + -
900B SER* 3.7 37.2 - - - +
903B LEU* 3.9 16.2 - - + -
904B GLU* 3.8 22.9 - - + -
929B ILE* 3.1 41.5 - - + -
934B ARG* 5.4 0.7 - - - +
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Residues in contact with GLU 860 (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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858B ALA* 3.8 10.1 - - - +
859B LEU* 1.3 78.3 + - - +
861B SER* 1.3 59.5 + - - +
863B LEU* 4.3 4.9 - - - +
864B HIS* 2.6 35.5 + - + +
865B ARG 3.2 4.7 + - - -
866B ILE* 3.4 41.5 + - + +
868B THR* 5.0 2.1 + - - -
871B SER* 4.0 7.1 + - - -
929B ILE 4.5 4.2 - - - +
931B ALA* 3.9 10.4 - - - +
934B ARG* 2.8 44.1 + - - -
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Residues in contact with SER 861 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
857B MET* 3.5 17.9 - - - -
858B ALA 3.0 17.1 + - - -
860B GLU* 1.3 77.8 - - - +
862B ILE* 1.3 53.8 + - - +
865B ARG* 2.6 43.3 + - - +
866B ILE 2.6 26.4 + - - +
867B TYR* 3.7 15.2 - - - -
871B SER* 3.4 21.7 - - - -
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Residues in contact with ILE 862 (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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854B ILE* 3.8 40.2 - - + +
857B MET* 3.7 35.9 - - + +
858B ALA 3.0 11.8 + - - +
859B LEU* 3.2 10.5 + - + +
861B SER* 1.3 78.9 - - - +
863B LEU* 1.3 62.9 + - + +
865B ARG* 3.1 18.9 + - - +
900B SER* 4.3 23.3 - - - +
903B LEU* 3.9 24.0 - - + -
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Residues in contact with LEU 863 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
859B LEU* 2.7 38.5 + - + +
860B GLU* 4.4 0.7 - - - +
862B ILE* 1.3 78.4 - - + +
864B HIS* 1.3 86.7 + - + +
865B ARG 3.8 0.2 - - - -
900B SER* 4.0 23.8 - - - -
904B GLU* 3.7 21.5 - - + +
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Residues in contact with HIS 864 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
860B GLU* 2.6 21.7 + - + +
863B LEU* 1.3 98.9 + - + +
865B ARG* 1.3 72.8 + - - +
866B ILE* 3.0 27.5 + - + +
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Residues in contact with ARG 865 (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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812B ARG* 5.1 2.1 + - - -
852B VAL* 4.4 19.6 - - - +
854B ILE* 4.3 12.3 - - - +
857B MET* 3.8 10.3 - - - +
861B SER 2.6 29.3 + - - -
862B ILE* 3.1 28.1 + - - +
864B HIS* 1.3 80.1 - - - +
866B ILE* 1.3 62.2 + - - +
867B TYR* 3.4 35.5 + - + -
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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