Contacts of the helix formed by residues 458 - 462 (chain B) in PDB entry 1LWU
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 MET 458 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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377B ALA* 3.7 28.9 - - + -
379B GLN* 3.2 29.6 + - - +
380B LEU* 4.5 14.4 - - + -
428B HIS* 3.4 8.7 - - - +
429B ALA* 2.9 15.8 + - - +
456B VAL* 3.3 10.5 - - + +
457B TRP* 1.3 72.5 - - - +
459B ASN* 1.3 54.0 + - - +
460B TRP* 2.5 15.1 + - - -
461B LYS 3.3 0.2 + - - -
462B GLY 2.8 30.4 + - - -
463B SER* 2.8 26.0 - - - +
1M GLY* 3.0 36.1 - - - +
2M HIS* 5.5 0.4 - - + +
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Residues in contact with ASN 459 (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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369B ALA 3.1 20.7 - - - +
370B GLY* 3.5 16.2 - - - +
371B ASN 3.8 1.2 - - - -
372B ALA* 3.1 38.5 + - - +
376B GLY 3.2 14.7 - - - +
377B ALA* 3.4 22.3 - - - +
378B THR* 3.6 24.4 + - - +
379B GLN* 5.1 2.2 - - - +
429B ALA* 3.9 4.2 + - - +
457B TRP* 2.9 7.0 + - - +
458B MET* 1.3 69.9 - - - +
460B TRP* 1.3 56.0 + - - +
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Residues in contact with TRP 460 (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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334B MET* 4.4 4.7 - - + -
335B SER 4.3 1.6 - - - -
336B ASP* 3.5 35.2 - - + -
340B SER* 3.8 26.5 - - - -
341B SER* 4.3 1.1 - - - -
342B VAL* 3.5 46.7 - - + +
368B ASN 4.4 7.9 - - - -
369B ALA* 3.5 11.0 - - - +
457B TRP* 2.7 17.2 + - + +
458B MET 2.5 11.2 + - - -
459B ASN* 1.3 75.3 - - - +
461B LYS* 1.3 87.9 + - + +
462B GLY 3.6 0.2 - - - -
467B MET* 3.5 29.6 - - + -
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Residues in contact with LYS 461 (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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336B ASP* 3.1 40.5 + - - -
338B GLU* 3.7 13.7 + - - -
340B SER* 5.3 1.4 + - - -
457B TRP 3.4 3.4 + - - -
458B MET 3.3 0.2 + - - -
460B TRP* 1.3 113.6 - - + +
462B GLY* 1.3 63.9 + - - +
464B TRP 4.6 1.6 + - - -
465B TYR* 3.6 47.3 + - + +
467B MET* 3.7 7.0 - - + -
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Residues in contact with GLY 462 (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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379B GLN* 3.1 26.0 - - - +
456B VAL* 3.6 7.4 - - - +
457B TRP 4.1 1.7 + - - -
458B MET* 2.8 25.3 + - - -
460B TRP 3.6 0.8 - - - -
461B LYS* 1.3 85.3 - - - +
463B SER* 1.3 62.0 + - - -
464B TRP 3.8 0.2 + - - -
465B TYR 4.4 4.3 + - - +
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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