Contacts of the strand formed by residues 556 - 559 (chain A) in PDB entry 3CKM
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 556 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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341A LEU* 4.7 3.6 - - + -
356A CYS* 5.1 0.2 - - + -
357A TYR 2.8 26.1 + - - +
358A TYR* 3.9 29.1 - - + -
359A GLY 4.6 7.1 + - - +
364A ASP* 4.0 10.4 - - - +
526A LEU* 4.5 9.2 - - + -
533A LEU* 4.0 27.8 - - + -
548A LEU* 4.1 21.1 - - + -
549A SER 3.1 12.8 - - - +
550A ALA* 4.9 1.1 - - + -
554A CYS 4.5 4.3 - - - +
555A ASN* 1.3 79.5 + - - +
557A GLU* 1.3 69.7 + - - +
558A ARG* 4.9 0.8 - - + +
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Residues in contact with GLU 557 (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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364A ASP* 4.0 7.0 - - - +
367A GLU* 3.2 28.9 - - - +
401A ARG* 3.3 17.8 + - - -
547A ILE 3.6 1.0 - - - +
548A LEU* 3.4 5.7 - - - -
549A SER* 2.7 44.8 + - - +
551A ASP* 3.3 31.2 - - + +
555A ASN* 3.4 18.3 + - - +
556A VAL* 1.3 78.7 - - - +
558A ARG* 1.3 65.0 + - - +
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Residues in contact with ARG 558 (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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358A TYR* 4.4 8.1 - - + -
359A GLY 4.5 0.2 - - - -
360A LEU* 3.5 33.0 - - - +
361A SER 3.2 33.5 + - - +
364A ASP* 2.8 36.8 + - + +
365A GLU* 4.1 15.2 + - - +
368A SER* 3.4 13.5 + - - -
489A ILE* 3.6 12.7 - - - +
545A THR* 3.2 38.5 + - - +
546A GLY* 4.6 0.7 - - - -
547A ILE 3.4 4.5 - - - +
548A LEU* 3.7 15.3 - - + -
556A VAL* 4.9 1.8 - - + +
557A GLU* 1.3 81.5 - - - +
559A ASP* 1.3 59.4 + - - +
560A MSE 3.6 26.3 + - - +
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Residues in contact with ASP 559 (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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368A SER* 3.9 5.6 + - - -
371A ASN* 6.3 1.6 - - - -
540A ARG* 3.4 31.6 + - - +
546A GLY* 3.4 6.8 - - - -
547A ILE* 2.9 37.3 + - + +
558A ARG* 1.3 69.5 - - - +
560A MSE 1.3 73.6 + - - +
561A THR* 5.2 0.5 + - - -
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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