Contacts of the strand formed by residues 491 - 495 (chain A) in PDB entry 1JSC
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 491 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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484A ALA* 4.2 19.5 - - + +
485A ASN* 5.1 1.8 - - - +
487A THR* 4.8 0.2 - - - +
489A ARG 3.4 16.3 + - - +
490A HIS* 1.3 76.9 - - - +
492A ILE* 1.3 74.0 + - - +
493A VAL* 4.2 3.2 - - + +
508A TRP* 4.0 27.1 - - + +
512A ASN* 5.4 1.6 + - - -
515A THR* 3.3 25.8 - - - +
543A LEU* 3.3 26.9 - - + +
545A ILE* 4.4 12.6 - - + -
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Residues in contact with ILE 492 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
152A ALA* 4.1 13.9 - - + +
490A HIS* 3.8 17.7 - - + +
491A VAL* 1.3 79.4 - - - +
493A VAL* 1.3 70.0 + - - +
494A THR* 4.3 0.9 - - + -
514A HIS 4.2 7.9 - - - +
515A THR* 3.6 9.4 - - - +
517A ILE* 3.6 28.3 - - + -
535A ALA* 4.2 13.5 - - + +
539A LYS* 3.8 31.6 - - + -
542A SER* 3.9 15.3 - - - +
543A LEU 2.9 8.5 + - - +
544A VAL* 3.4 12.7 - - + +
545A ILE 2.8 26.2 + - - +
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Residues in contact with VAL 493 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
491A VAL* 4.2 5.8 - - + -
492A ILE* 1.3 78.7 - - - +
494A THR* 1.3 76.4 + - - +
495A THR* 4.2 8.7 - - + -
508A TRP* 3.7 39.9 - - + +
510A TRP* 3.8 21.3 - - + -
515A THR 2.7 14.8 + - - +
516A PHE* 3.5 3.1 - - + -
517A ILE* 2.8 27.5 + - - +
545A ILE* 3.2 11.0 - - + +
547A ILE* 3.9 21.3 - - + -
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Residues in contact with THR 494 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
492A ILE* 4.8 0.4 - - + -
493A VAL* 1.3 77.7 - - - +
495A THR* 1.3 69.6 + - - +
517A ILE* 3.0 33.9 - - + -
527A TYR* 5.4 0.2 - - - -
528A GLY* 3.0 25.2 + - - -
531A ALA* 4.0 8.3 - - - +
532A ALA* 3.4 27.9 - - + +
535A ALA* 4.7 0.7 - - + -
544A VAL* 4.7 5.8 - - + -
545A ILE 2.8 7.2 + - - +
546A ASP* 3.3 15.1 - - - +
547A ILE 2.9 22.7 + - - -
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Residues in contact with THR 495 (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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493A VAL* 4.2 4.0 - - + -
494A THR* 1.3 83.5 - - - +
496A GLY* 1.3 69.5 + - - +
500A HIS* 4.5 4.9 - - - -
501A GLN* 3.8 7.8 - - - +
504A ALA* 4.0 17.5 - - + -
516A PHE* 3.8 28.5 - - + -
517A ILE 3.5 4.0 + - - -
518A THR* 2.6 26.5 + - - +
519A SER 5.1 0.2 + - - -
527A TYR* 3.8 12.6 - - - +
528A GLY* 3.2 21.5 + - - -
546A ASP* 3.7 1.6 - - - -
547A ILE* 3.1 16.6 - - + +
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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