Contacts of the strand formed by residues 344 - 347 (chain F) in PDB entry 4LQL
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 ILE 344 (chain F).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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127D ALA* 5.4 3.8 - - + -
131D ARG* 5.1 8.5 - - - +
332F ASP* 3.4 31.9 - - + +
334F THR 3.7 7.2 - - - +
335F LEU* 5.3 3.4 - - + -
343F ALA* 1.3 77.0 - - - +
345F MET* 1.3 60.1 + - - +
346F GLY* 3.1 2.6 + - - -
424F GLN 3.1 19.6 - - - +
425F MET* 4.2 0.4 - - - -
426F TRP* 3.0 41.5 + - + +
428F PRO 6.1 0.2 - - - -
432F LEU* 4.7 15.5 - - + -
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Residues in contact with MET 345 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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111D ILE* 5.9 6.1 - - + -
333F TYR* 3.4 21.6 + - - +
334F THR* 3.2 22.9 + - - +
335F LEU* 4.9 1.1 - - - +
343F ALA* 3.9 2.3 - - + +
344F ILE* 1.3 69.4 - - - +
346F GLY* 1.3 61.5 + - - +
347F SER* 5.0 3.4 - - - +
412F PRO* 6.3 1.3 - - + -
419F LEU* 5.5 7.9 - - + -
422F ALA 5.4 0.4 - - - +
423F LYS* 4.0 25.8 - - + -
424F GLN 4.7 0.2 - - - +
425F MET* 4.1 17.5 - - + +
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Residues in contact with GLY 346 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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330F MET* 3.4 24.2 - - - +
332F ASP* 4.3 11.2 - - - -
344F ILE 3.1 9.4 + - - -
345F MET* 1.3 69.8 - - - +
347F SER* 1.3 67.8 + - - -
352F VAL* 4.8 0.5 - - - +
422F ALA 4.2 0.2 - - - -
423F LYS* 3.3 7.1 - - - -
424F GLN* 2.9 29.7 + - - +
426F TRP* 4.5 2.0 - - - -
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Residues in contact with SER 347 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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330F MET* 3.5 5.4 - - - -
331F GLU* 2.7 38.7 + - - +
333F TYR* 3.2 22.4 - - - +
345F MET* 3.8 6.3 + - - +
346F GLY* 1.3 78.6 + - - -
348F HIS* 1.3 65.8 + - - +
352F VAL* 3.6 13.7 - - - -
419F LEU* 5.5 3.3 - - - +
421F VAL* 3.7 11.7 - - - -
422F ALA 3.1 20.4 + - - -
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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