Contacts of the helix formed by residues 323 - 329 (chain L) 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 SER 323 (chain L).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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312L THR 4.3 0.2 + - - -
313L PRO 4.1 6.2 + - - -
316L ASP* 2.9 26.0 + - - +
318L ASP* 3.7 1.1 - - - -
320L TYR* 4.2 0.8 - - - -
322L GLY* 1.3 71.7 - - - -
324L CYS* 1.3 53.8 + - - +
325L ALA* 2.9 10.3 + - - +
326L GLU* 2.9 37.9 + - - +
327L GLN* 2.8 42.1 + - - +
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Residues in contact with CYS 324 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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318L ASP* 2.8 16.4 + - - +
320L TYR* 3.8 22.9 - - - -
322L GLY 3.9 0.8 + - - -
323L SER* 1.3 71.7 - - - +
325L ALA* 1.3 62.2 + - - +
327L GLN* 4.2 6.1 - - - +
328L ASP* 3.1 30.5 + - - +
334L MET* 3.5 16.5 - - + +
337L CYS* 2.0 68.9 - - - -
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Residues in contact with ALA 325 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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311L SER* 3.7 18.4 - - - +
312L THR* 3.4 40.6 - - - +
313L PRO* 3.8 3.7 - - + +
318L ASP* 3.9 0.8 + - - +
323L SER* 2.9 5.8 - - - +
324L CYS* 1.3 79.8 - - - +
326L GLU* 1.3 56.4 + - - +
329L GLY* 2.8 21.8 + - - -
330L SER 3.0 15.7 + - - +
334L MET* 3.8 14.0 - - + +
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Residues in contact with GLU 326 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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313L PRO* 3.6 28.1 - - + +
323L SER* 2.9 29.7 + - - +
325L ALA* 1.3 76.3 - - - +
327L GLN* 1.3 65.8 + - + +
329L GLY* 3.5 8.8 + - - +
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Residues in contact with GLN 327 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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320L TYR* 3.0 46.0 + - - -
322L GLY* 4.8 1.0 - - - -
323L SER 2.8 24.6 + - - +
324L CYS* 3.8 9.3 - - - +
325L ALA 3.4 0.2 - - - -
326L GLU* 1.3 77.7 - - + +
328L ASP* 1.3 65.6 + - - +
329L GLY* 4.5 0.2 - - - -
337L CYS* 4.8 7.3 - - - -
360L PRO* 5.6 1.2 - - - +
361L TYR* 3.0 65.9 - - + +
363L ASP* 4.6 3.6 - - - +
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Residues in contact with ASP 328 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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324L CYS* 3.1 21.2 + - - +
325L ALA 4.7 0.2 - - - +
327L GLN* 1.3 78.7 - - - +
329L GLY* 1.3 64.9 + - - +
330L SER* 4.0 2.1 + - - +
334L MET* 3.4 1.4 - - + +
337L CYS* 4.7 3.0 - - - -
338L HIS* 2.7 37.8 + - - -
341L HIS* 3.5 20.6 - - + -
345L LYS* 3.6 15.2 + - - +
361L TYR* 4.8 2.3 - - - -
362L ASP* 3.5 5.5 + - - +
363L ASP* 2.7 50.2 + - + +
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Residues in contact with GLY 329 (chain L).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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204L PHE 4.5 0.2 - - - -
205L THR* 3.0 37.1 + - - -
313L PRO* 4.2 2.9 - - - -
325L ALA 2.8 13.6 + - - -
326L GLU 3.9 8.5 - - - -
327L GLN 3.1 3.8 - - - -
328L ASP* 1.3 79.0 - - - +
330L SER* 1.3 65.1 + - - -
345L LYS* 4.7 5.4 - - - +
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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
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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