Contacts of the strand formed by residues 442 - 446 (chain B) in PDB entry 1ASZ
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 PHE 442 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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359B SER* 5.2 0.7 - - - -
362B PHE* 3.8 19.5 - + + -
366B PHE* 3.4 33.0 - + + -
389B PHE* 4.0 2.2 - - + -
391B LEU* 3.8 11.4 - - + -
392B PRO* 5.0 0.2 - - - +
397B MET* 3.3 44.2 - - + +
398B VAL* 3.9 7.4 + - - +
440B THR* 2.7 24.8 + - - +
441B ASP* 1.3 81.3 - - - +
443B TYR* 1.3 63.9 + - - +
444B ILE* 4.6 5.8 - - + -
472B PHE* 3.1 44.6 - + + -
473B PHE 3.4 16.8 - - - -
474B MET* 4.4 2.2 - - - -
479B ILE* 4.0 13.9 - - + -
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Residues in contact with TYR 443 (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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398B VAL* 3.2 30.3 - - + +
400B LEU* 3.9 20.2 - - + -
422B LEU* 5.5 0.9 - - - +
427B GLU* 4.5 4.3 + - - -
430B LEU* 4.0 20.6 - - + +
431B GLY* 4.4 11.5 + - - -
434B VAL* 3.9 37.0 - - + -
440B THR* 4.9 1.8 - - + -
441B ASP 5.5 1.3 - - - -
442B PHE* 1.3 79.8 - - - +
444B ILE* 1.3 63.9 + - - +
445B LEU* 4.0 20.8 - - + +
472B PHE* 4.0 1.4 - - - -
473B PHE* 3.0 81.5 + + + -
476B GLY* 5.1 3.0 + - - -
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Residues in contact with ILE 444 (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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355B LEU* 4.6 5.2 - - + -
359B SER* 3.6 15.0 - - - +
397B MET* 4.7 7.9 - - + -
398B VAL 2.7 15.5 + - - +
399B ARG* 3.2 48.9 - - + +
400B LEU* 2.9 30.8 + - - +
442B PHE* 4.6 5.4 - - + -
443B TYR* 1.3 77.2 - - - +
445B LEU* 1.3 62.1 + - - +
446B ASP 3.7 1.0 + - - +
470B TYR* 4.2 14.1 - - + -
471B ASP 3.6 5.2 - - - +
472B PHE* 3.5 47.8 - - + +
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Residues in contact with LEU 445 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
400B LEU* 3.2 32.3 - - + +
401B THR 4.2 7.0 - - - +
402B TYR* 3.7 22.7 - - + -
405B GLY* 4.3 2.9 - - - -
422B LEU* 3.7 24.9 - - + -
430B LEU* 4.1 12.3 - - + -
443B TYR* 4.0 8.8 + - + -
444B ILE* 1.3 69.8 - - - +
446B ASP* 1.3 58.0 + - - +
448B PHE* 3.1 40.0 - - + -
470B TYR* 3.3 1.3 - - - -
471B ASP 3.1 21.4 + - - +
473B PHE* 3.4 28.5 - - + -
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Residues in contact with ASP 446 (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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351B TYR* 3.3 18.3 + - - -
352B HIS* 3.4 23.9 + - - -
355B LEU* 4.2 11.7 - - + -
399B ARG* 3.9 26.1 - - + +
400B LEU 3.1 9.7 + - - +
401B THR* 3.1 9.3 - - + +
402B TYR 2.9 25.7 + - - -
444B ILE* 3.7 1.3 + - + -
445B LEU* 1.3 74.6 - - - +
447B LYS* 1.3 89.8 + - - +
448B PHE* 3.7 1.1 - - - -
469B SER 2.8 14.6 - - - +
470B TYR* 4.2 5.8 - - + +
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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