Contacts of the helix formed by residues 823 - 831 (chain D) in PDB entry 5LPI
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 GLU 823 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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819D VAL* 4.1 9.7 - - + +
820D PHE* 3.1 38.9 + - + +
822D GLU* 1.3 90.0 - - + +
824D LEU* 1.3 53.3 + - - +
825D PRO 3.4 0.7 - - - -
826D ARG* 3.3 13.2 + - + +
827D HIS* 2.8 34.1 + - + +
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Residues in contact with LEU 824 (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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810D GLY* 3.8 30.7 - - - -
811D LYS 4.0 8.7 - - - +
812D CYS* 3.9 24.5 - - + +
819D VAL* 4.0 15.7 - - + -
820D PHE 3.1 10.1 + - - +
821D LYS* 3.6 13.0 - - + +
822D GLU 3.3 0.2 - - - -
823D GLU* 1.3 76.8 - - - +
825D PRO* 1.3 65.4 - - + +
827D HIS* 3.5 6.1 - - + +
828D ILE* 2.7 59.9 + - + +
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Residues in contact with PRO 825 (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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821D LYS 3.6 11.0 - - - +
822D GLU 3.7 11.2 - - - +
823D GLU 3.7 0.2 - - - -
824D LEU* 1.3 92.3 - - + +
826D ARG* 1.3 50.5 + - - +
828D ILE* 3.2 10.3 + - + +
829D LYS* 2.8 41.7 + - + +
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Residues in contact with ARG 826 (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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822D GLU 5.2 1.1 + - - +
823D GLU* 3.3 14.8 + - - +
825D PRO* 1.3 75.3 - - - +
827D HIS* 1.3 61.5 + - - +
829D LYS* 4.3 6.5 - - - -
830D HIS* 2.8 59.2 + - + +
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Residues in contact with HIS 827 (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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812D CYS* 3.6 17.7 - - + +
815D CYS* 3.7 3.5 - - - -
817D GLU* 6.0 1.1 - - - -
819D VAL* 3.8 26.6 - - + +
823D GLU* 2.8 22.7 + - + +
824D LEU* 3.5 11.0 - - + +
826D ARG* 1.3 74.0 - - - +
828D ILE* 1.3 64.6 + - - +
830D HIS* 3.4 4.8 + - - +
831D LYS* 3.3 17.0 + - - -
832D ASP 4.6 1.7 + - - -
833D CYS* 3.4 17.8 - - + -
901D ZN 2.1 37.3 - - - -
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Residues in contact with ILE 828 (chain D).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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811D LYS 5.5 0.9 - - - +
812D CYS* 4.5 17.5 - - - -
813D TYR* 5.6 4.9 - - + +
814D ARG* 5.9 0.6 - - - +
824D LEU* 2.7 53.1 + - + +
825D PRO* 3.6 7.6 - - + +
827D HIS* 1.3 73.7 - - - +
829D LYS* 1.3 67.9 + - + +
831D LYS* 3.3 25.3 + - - +
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Residues in contact with LYS 829 (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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825D PRO* 2.8 24.1 + - + +
826D ARG* 3.7 7.9 - - - +
828D ILE* 1.3 80.3 - - + +
830D HIS* 1.3 67.1 + - + +
831D LYS* 3.3 13.8 + - - +
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Residues in contact with HIS 830 (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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826D ARG* 2.8 52.6 + - + +
827D HIS* 4.0 5.2 - - - +
828D ILE 3.3 0.2 - - - -
829D LYS* 1.3 78.4 - - + +
831D LYS* 1.3 69.3 + - - +
832D ASP* 3.0 33.5 + - + +
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Residues in contact with LYS 831 (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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814D ARG* 3.4 43.1 + - - +
827D HIS 3.3 9.9 + - - -
828D ILE* 3.3 18.2 - - - +
829D LYS* 3.2 10.5 - - - +
830D HIS* 1.3 76.9 - - - +
832D ASP* 1.3 60.6 + - - +
833D CYS* 3.5 2.9 - - - +
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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