Contacts of the strand formed by residues 279 - 283 (chain A) in PDB entry 6PAU
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 ALA 279 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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242A MET* 4.0 5.9 - - - +
243A VAL* 3.3 25.4 - - + +
245A ILE* 4.3 5.4 - - + -
278A GLN* 1.3 76.9 - - - +
280A VAL* 1.3 61.0 + - - +
281A TYR* 4.9 1.3 - - + -
478A LEU* 3.3 10.0 - - - +
479A TYR* 2.8 45.2 + - + +
1000C MYR 4.0 20.4 - - + -
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Residues in contact with VAL 280 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
233A ILE* 4.2 13.5 - - + -
242A MET* 4.4 3.6 - - - -
243A VAL 2.9 8.1 + - - +
244A GLU* 3.3 28.5 - - + +
245A ILE* 3.2 19.8 + - - +
279A ALA* 1.3 75.2 - - - +
281A TYR* 1.3 74.4 + - - +
362A LEU* 4.6 10.1 - - + -
476A TYR* 5.0 3.4 - - + -
477A TYR 3.3 13.5 - - - +
478A LEU* 3.5 18.4 - - + -
493A LEU* 3.9 30.7 - - + -
495A LEU* 4.9 2.2 - - + -
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Residues in contact with TYR 281 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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245A ILE* 3.6 21.1 - - + +
279A ALA* 4.9 0.2 - - + -
280A VAL* 1.3 84.7 - - - +
282A THR* 1.3 72.7 + - - +
283A ALA* 4.9 2.0 - - + -
287A LEU* 4.2 17.4 - - + +
476A TYR* 3.6 4.0 - - - +
477A TYR* 2.8 73.6 + + + +
478A LEU 4.9 1.3 + - - -
479A TYR* 4.3 15.5 - - + +
495A LEU* 4.1 10.3 - - - -
1000C MYR 3.6 65.2 - - + +
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Residues in contact with THR 282 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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245A ILE 4.8 1.2 + - - -
246A ASN* 6.0 0.9 - - - -
281A TYR* 1.3 82.0 - - - +
283A ALA* 1.3 65.6 + - - +
474A LEU* 3.7 18.8 - - + +
475A GLN 3.1 10.8 - - - +
476A TYR* 3.6 37.9 - - + -
477A TYR* 4.6 0.4 - - - -
495A LEU* 4.0 23.4 - - + +
496A GLN* 5.7 0.7 + - - -
503A GOL 5.0 3.1 + - - -
3C LYS* 3.0 41.7 + - - +
1000C MYR 3.7 4.6 - - - +
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Residues in contact with ALA 283 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
281A TYR* 4.9 3.4 - - + -
282A THR* 1.3 79.8 - - - +
284A GLY* 1.3 59.6 + - - +
285A VAL* 3.4 21.5 - - + +
287A LEU* 4.8 3.6 - - + -
474A LEU* 3.8 7.2 - - - +
475A GLN* 2.9 36.7 + - - +
477A TYR* 3.8 18.4 - - + -
511A 4PS 4.0 13.9 - - - -
3C LYS* 4.1 7.2 - - - -
1000C MYR 5.7 0.2 - - + -
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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