Contacts of the strand formed by residues 542 - 545 (chain C) in PDB entry 2DB3
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 VAL 542 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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485C LEU* 4.4 14.6 - - + -
489C ALA* 3.7 26.0 - - + +
492C THR* 3.4 11.0 - - + +
494C VAL* 4.0 12.6 - - + -
509C LEU* 4.4 6.7 - - + -
514C PHE* 4.8 6.3 - - + -
515C PRO 3.1 4.2 + - - +
516C THR* 3.4 21.2 - - + +
517C THR* 3.0 30.5 + - - +
535C PHE* 4.0 2.0 - - - -
540C MET* 4.3 1.2 - - - +
541C LYS* 1.3 89.0 - - + +
543C LEU* 1.3 62.8 + - - +
544C ILE* 3.9 24.2 - - + -
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Residues in contact with LEU 543 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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492C THR 2.9 7.9 + - - +
493C ILE* 3.2 28.5 - - + +
494C VAL 2.8 31.5 + - - -
517C THR* 3.5 13.5 - - + -
518C SER* 3.8 16.4 - - - +
519C ILE* 3.8 26.7 - - + -
531C ALA* 4.5 8.5 - - + +
532C LEU* 3.7 25.6 - - + -
535C PHE* 3.6 29.8 - - + -
542C VAL* 1.3 72.8 - - - +
544C ILE* 1.3 62.0 + - - +
549C ALA* 5.4 0.9 - - + -
553C LEU* 6.0 0.4 - - + -
555C ILE* 5.4 2.9 - - + -
558C ILE* 5.6 0.4 - - + -
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Residues in contact with ILE 544 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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494C VAL* 3.5 35.0 - - + +
496C VAL* 4.2 9.0 - - + -
502C ALA* 3.6 29.8 - - + +
505C LEU* 4.1 15.0 - - + -
506C ALA* 3.9 12.8 - - - +
509C LEU* 3.9 20.9 - - + -
516C THR* 3.7 19.5 - - + -
517C THR 2.9 8.6 + - - +
518C SER* 3.0 14.8 - - - -
519C ILE 2.8 26.3 + - - +
542C VAL* 3.9 6.1 - - + -
543C LEU* 1.3 72.3 - - - +
545C ALA* 1.3 64.8 + - - +
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Residues in contact with ALA 545 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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493C ILE* 4.4 10.5 - - + -
494C VAL 2.8 15.5 + - - +
495C PHE* 3.2 10.7 - - + -
496C VAL* 2.9 29.6 + - - +
502C ALA* 4.8 1.8 - - - -
519C ILE* 3.4 26.7 - - + +
543C LEU* 3.9 0.4 + - + -
544C ILE* 1.3 77.5 - - - +
546C THR* 1.3 70.2 + - - +
549C ALA* 3.9 12.1 - - + -
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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