Contacts of the strand formed by residues 492 - 495 (chain B) 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 THR 492 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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485B LEU* 3.6 12.6 - - + -
488B GLN 5.4 1.1 - - - -
489B ALA 2.7 26.0 - - - +
490B ASP 4.2 0.2 - - - -
491B GLY* 1.3 75.8 - - - +
493B ILE* 1.3 62.2 + - - +
494B VAL* 4.4 0.5 - - - +
535B PHE* 3.4 6.5 - - - -
541B LYS 3.1 2.6 + - - +
542B VAL* 3.4 29.5 - - + +
543B LEU 2.9 23.2 + - - -
560B HIS* 3.3 21.2 + - - +
562B ILE* 3.6 24.8 - - - +
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Residues in contact with ILE 493 (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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491B GLY 4.4 0.2 + - - -
492B THR* 1.3 74.8 - - - +
494B VAL* 1.3 65.0 + - - +
495B PHE* 4.1 25.3 + - + -
535B PHE* 4.6 0.9 - - + -
543B LEU* 3.2 40.2 - - + +
545B ALA* 4.1 16.4 - - + -
549B ALA* 4.4 9.9 - - + +
553B LEU* 6.1 0.9 - - + -
555B ILE* 6.1 0.7 - - + -
558B ILE* 4.0 28.7 - - + +
560B HIS 2.9 9.3 + - - +
561B VAL* 3.6 30.2 - - + +
562B ILE* 2.9 21.8 + - - +
579B ARG* 4.7 1.8 - - + -
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Residues in contact with VAL 494 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
481B LEU* 4.2 22.7 - - + -
485B LEU* 5.4 0.4 - - + -
492B THR* 4.4 8.5 - - + +
493B ILE* 1.3 76.8 - - - +
495B PHE* 1.3 61.1 - - - +
496B VAL* 3.9 0.8 + - + -
505B LEU* 4.3 6.7 - - + -
542B VAL* 3.8 16.8 - - + -
543B LEU 2.6 9.7 + - - -
544B ILE* 3.5 26.5 - - + +
545B ALA* 2.7 33.6 + - - +
562B ILE* 3.5 23.1 - - + +
564B TYR* 3.6 25.8 - - + -
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Residues in contact with PHE 495 (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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493B ILE* 4.2 17.7 - - + -
494B VAL* 1.3 75.6 - - - +
496B VAL* 1.3 60.7 - - - +
545B ALA* 3.2 25.4 - - + -
546B THR 3.6 18.2 - - - -
549B ALA* 3.5 29.2 - - + -
550B SER* 3.8 11.7 - - - -
561B VAL* 4.0 17.0 - - + -
562B ILE 2.8 14.8 + - - +
563B ASN* 3.9 4.0 - - - +
564B TYR* 3.0 27.0 + - - +
565B ASP 3.3 4.7 + - - +
576B ARG* 3.6 64.6 - - + +
579B ARG* 4.1 7.6 - - + -
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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