Contacts of the strand formed by residues 540 - 543 (chain A) in PDB entry 1HK8
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 540 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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228A THR* 3.6 28.6 + - + +
261A ALA 4.9 0.4 - - - +
262A SER 4.2 9.0 - - - +
263A LYS* 3.6 27.8 - - - +
264A ARG* 4.7 0.4 - - - -
265A MET* 4.1 21.1 - - + +
514A LYS* 5.7 2.5 - - - +
538A MET* 4.2 11.0 - - + +
539A PRO* 1.3 76.7 - - - +
541A ASP* 1.3 61.8 + - - +
573A ASN* 3.6 4.3 - - - +
575A ILE* 3.1 46.9 + - + +
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Residues in contact with ASP 541 (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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514A LYS* 5.5 0.6 + - - +
539A PRO* 3.9 2.3 + - - +
540A VAL* 1.3 78.5 - - - +
542A LYS* 1.3 63.0 + - - +
548A SER 4.3 0.9 - - - -
549A THR* 3.4 28.6 + - - +
550A HIS 3.7 16.0 + - - +
551A GLU* 3.5 6.1 - - - -
552A MET* 3.1 37.6 + - - +
559A PHE* 5.7 0.2 - - - -
573A ASN 3.2 5.6 - - - +
574A THR* 3.3 24.3 - - + -
575A ILE 3.7 0.5 + - - -
576A ARG* 2.7 33.2 + - - -
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Residues in contact with LYS 542 (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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220A LYS 4.8 2.0 + - - -
225A ASP 3.6 21.2 + - - +
226A GLY* 3.1 28.6 + - - +
264A ARG* 3.8 17.3 - - - +
541A ASP* 1.3 77.4 - - - +
543A CYS* 1.3 70.0 + - - +
544A PHE* 3.8 11.2 + - + -
547A GLY* 5.0 3.1 - - - +
548A SER 3.4 8.1 - - - +
549A THR* 4.5 17.7 - - + -
552A MET* 4.7 3.3 - - - +
572A MET* 3.3 7.4 - - - +
573A ASN* 2.9 42.9 + - + +
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Residues in contact with CYS 543 (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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542A LYS* 1.3 74.5 - - - +
544A PHE* 1.3 62.2 + - - +
545A THR* 3.1 25.6 - - - -
546A CYS* 3.6 6.3 - - - -
547A GLY* 3.0 29.6 + - - -
548A SER* 3.1 12.5 + - - +
552A MET* 3.9 18.4 - - + +
561A CYS* 3.9 4.5 - - - -
564A CYS* 3.9 3.6 - - - -
566A GLU* 4.1 10.1 - - - -
571A LYS 4.1 7.0 - - - -
1589A ZN 2.5 35.9 - - - -
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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