Contacts of the strand formed by residues 608 - 610 (chain B) in PDB entry 1XSK
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 TYR 608 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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494B LEU* 3.7 23.8 - - + -
498B LEU* 3.7 13.9 - - + -
530B PHE* 3.6 16.8 - + - -
533B LEU* 2.8 28.4 + - - +
588B MET* 3.6 27.4 - - + -
589B ARG 3.5 13.5 - - - +
591B MET* 4.1 8.7 - - - +
607B GLN* 1.3 86.7 - - - +
609B MET* 1.3 70.5 + - - +
610B LEU* 4.3 6.7 - - + -
615B MET* 3.4 5.5 - - - +
616B VAL* 2.9 66.1 + - + +
618B PRO* 3.8 18.4 - - + -
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Residues in contact with MET 609 (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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587B MET 3.2 3.8 - - - +
588B MET* 3.7 1.6 - - - -
589B ARG* 2.8 46.5 + - + +
591B MET* 3.7 21.3 - - - +
594B GLU* 3.8 23.3 - - + -
595B PHE* 3.8 20.9 - - + -
608B TYR* 1.3 75.3 - - - +
610B LEU* 1.3 59.5 + - - +
611B GLY 3.6 7.7 + - - +
612B ASP 3.6 23.1 - - - +
613B ASN 4.1 2.7 - - - -
614B VAL 3.3 27.4 - - - +
615B MET* 3.6 23.6 - - - +
635B TRP* 4.2 10.5 - - + -
664B ARG* 4.3 0.9 - - - -
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Residues in contact with LEU 610 (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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533B LEU* 3.7 50.3 - - + +
534B SER* 4.8 1.3 - - - -
535B SER 4.8 8.1 - - - +
569B MET* 4.5 8.3 - - + -
572B TYR* 2.7 16.7 + - - -
573B LEU* 4.2 25.6 - - + -
587B MET* 3.4 34.3 - - + +
588B MET* 5.1 1.8 - - + +
608B TYR* 4.0 7.4 + - + -
609B MET* 1.3 69.4 - - - +
611B GLY* 1.3 60.6 + - - +
614B VAL* 2.8 32.6 + - + +
616B VAL* 4.0 14.8 - - + -
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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