Contacts of the strand formed by residues 515 - 519 (chain B) in PDB entry 1L8A
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 LEU 515 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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210B TYR* 4.0 1.4 + - - -
502B LEU* 4.2 9.0 - - + +
505B MET* 3.6 29.8 - - + +
506B LEU* 3.3 33.7 - - + +
511B ILE* 3.2 33.2 - - + +
512B LYS 3.5 7.4 - - - +
513B ASP 3.3 2.0 - - - +
514B ARG* 1.3 80.1 - - - +
516B VAL* 1.3 63.1 + - - +
517B PRO* 3.7 6.7 - - + -
563B GLN* 2.9 27.8 + - - +
593B ILE* 3.4 15.9 - - + +
595B PHE* 4.0 22.9 - - + -
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Residues in contact with VAL 516 (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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207B PHE* 4.3 5.4 - - + -
210B TYR* 3.9 17.5 - - + +
514B ARG 3.5 11.7 - - - +
515B LEU* 1.3 80.7 - - - +
517B PRO* 1.3 62.0 - - - +
518B ILE* 3.2 14.8 - - + +
563B GLN 4.5 0.2 - - - +
565B LEU* 3.9 31.0 - - + -
581B ALA* 4.2 13.9 - - + -
592B MET* 3.6 21.5 - - + -
593B ILE 2.9 10.3 + - - +
594B PRO* 3.3 10.2 - - + +
595B PHE* 3.0 22.3 + - - -
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Residues in contact with PRO 517 (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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502B LEU* 4.6 17.9 - - + -
506B LEU* 5.7 1.3 - - + -
515B LEU* 3.7 12.6 - - + +
516B VAL* 1.3 88.6 - - - +
518B ILE* 1.3 60.1 + - - +
528B MET* 4.0 24.7 - - + -
531B LEU* 5.1 1.3 - - + -
535B ILE* 3.9 21.8 - - + -
563B GLN* 4.0 17.4 - - + +
564B ILE* 3.5 12.3 - - + +
565B LEU* 2.9 24.9 + - - +
595B PHE* 3.4 11.4 - - + +
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Residues in contact with ILE 518 (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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516B VAL* 3.2 28.5 - - + +
517B PRO* 1.3 74.6 - - - +
519B ILE* 1.3 68.3 + - - +
528B MET* 5.3 0.2 - - - +
565B LEU* 3.4 15.7 - - + +
567B GLU* 4.1 10.5 - - + -
574B ALA* 3.9 30.7 - - + +
577B SER* 4.0 7.0 - - - -
578B TRP* 3.3 43.5 - - + +
594B PRO* 3.9 10.3 - - + -
595B PHE 2.8 9.5 + - - +
596B TYR* 3.3 11.0 - - + -
597B ILE* 3.1 25.6 + - - +
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Residues in contact with ILE 519 (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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518B ILE* 1.3 81.1 - - - +
520B ALA* 1.3 60.7 + - - +
521B ASP 4.3 4.7 - - - +
522B GLU 3.8 16.4 - - - +
523B ALA* 4.7 4.5 - - + -
528B MET* 4.1 24.9 - - + -
532B PHE* 4.3 9.9 - - + -
564B ILE* 3.1 33.0 - - + -
565B LEU 3.0 14.5 + - - +
566B GLN* 3.6 28.7 - - + +
567B GLU* 2.9 28.9 + - - +
574B ALA* 4.9 0.2 - - - -
596B TYR* 4.5 3.6 - - - -
597B ILE* 3.9 24.5 - - + +
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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