Contacts of the strand formed by residues 507 - 510 (chain A) in PDB entry 4CH9
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 507 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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480A ARG* 4.2 2.2 - - - +
493A TYR* 4.2 9.9 - - + -
494A ALA 3.5 10.5 - - - +
495A THR* 3.9 19.5 - - + -
505A LYS 3.7 1.3 - - - +
506A SER* 1.3 81.5 - - - +
508A GLU* 1.3 70.7 + - - +
519A GLN* 3.6 6.8 - - - +
520A VAL* 3.0 43.6 + - + +
521A ALA 3.6 20.6 + - - +
522A ASP* 4.5 2.6 + - - -
523A MET* 3.7 17.5 - - + -
564A TRP* 3.7 23.8 - - + -
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Residues in contact with GLU 508 (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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476A MET* 3.5 14.8 - - - +
477A SER* 2.8 49.4 + - - +
478A THR 3.8 2.6 + - - -
480A ARG* 2.9 32.4 + - - +
493A TYR* 3.6 2.4 - - - -
494A ALA* 2.9 33.6 + - + +
507A VAL* 1.3 78.1 - - - +
509A VAL* 1.3 62.5 + - - +
517A TRP* 3.7 25.3 - - + +
518A LYS 3.2 18.2 - - - +
519A GLN* 4.3 3.4 - - + -
520A VAL 4.4 1.1 - - - +
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Residues in contact with VAL 509 (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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491A GLN* 3.5 34.8 - - + +
492A LEU 3.3 8.3 - - - +
493A TYR* 3.6 30.1 - - + +
508A GLU* 1.3 76.4 - - - +
510A TYR* 1.3 61.8 - - - +
511A ASP 4.2 0.2 + - - -
516A THR 3.6 1.4 - - - +
517A TRP* 3.2 6.9 - - - -
518A LYS* 2.8 69.6 + - + +
520A VAL* 3.7 10.5 - - + -
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Residues in contact with TYR 510 (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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444A TYR* 3.7 22.3 + + - -
462A GLN* 5.2 1.2 + - - -
473A VAL* 3.5 22.1 - - + +
474A ALA* 4.3 2.2 - - + -
491A GLN* 3.6 7.6 - - - -
492A LEU* 2.8 49.8 + - + +
509A VAL* 1.3 73.5 - - - +
511A ASP* 1.3 58.3 - - - +
512A PRO* 3.5 34.2 + - + +
515A ASN* 2.8 50.6 + - - +
516A THR 3.4 11.4 - - - -
517A TRP* 3.4 49.4 - + + -
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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