Contacts of the strand formed by residues 536 - 540 (chain A) in PDB entry 4YFI
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 ALA 536 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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460A LEU* 4.6 3.4 - - + -
463A ILE* 4.4 12.1 - - + -
489A ILE* 4.0 17.0 - - + -
490A LYS 3.2 10.1 - - - +
491A ARG* 4.5 9.9 - - - -
492A TYR* 5.2 0.2 - - - -
506A PHE* 3.6 2.8 - - - -
527A ALA* 3.3 6.5 - - - +
528A CYS* 3.1 35.1 + - + +
534A GLN 3.2 9.6 + - - +
535A PHE* 1.3 74.6 - - - +
537A ILE* 1.3 69.9 + - - +
538A VAL* 5.2 0.4 - - + -
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Residues in contact with ILE 537 (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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488A ALA 3.7 1.0 - - - +
489A ILE* 3.3 3.2 - - - -
490A LYS* 2.8 49.7 + - + +
492A TYR* 4.2 8.5 - - + -
506A PHE* 3.8 15.5 - - + -
509A GLU* 3.5 41.3 - - + +
510A VAL* 4.0 20.2 - - + -
513A LEU* 3.4 24.0 - - + -
524A PHE* 4.1 7.2 - - + -
526A GLY 3.7 2.5 - - - -
527A ALA* 4.7 0.7 - - + -
536A ALA* 1.3 81.1 - - - +
538A VAL* 1.3 64.0 + - - +
539A THR* 4.4 10.8 - - + -
801A 4CW 3.9 6.3 - - - +
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Residues in contact with VAL 538 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
458A LEU* 3.4 29.2 - - + -
463A ILE* 3.9 20.4 - - + -
482A CYS* 4.7 4.3 - - + -
487A VAL* 3.6 41.5 - - + -
488A ALA 3.4 5.2 - - - +
489A ILE* 4.2 8.1 - - + -
524A PHE* 3.5 6.1 - - - -
525A VAL* 2.7 35.8 + - + -
526A GLY 2.6 23.1 + - - +
527A ALA* 5.1 0.9 - - - -
536A ALA 5.2 0.4 - - - -
537A ILE* 1.3 77.7 - - - +
539A THR* 1.3 60.4 + - - +
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Residues in contact with THR 539 (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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487A VAL* 3.6 8.0 - - - +
488A ALA* 2.9 23.5 + - - +
513A LEU* 4.8 3.8 - - + -
522A ILE* 3.8 22.1 - - + +
523A GLN 3.2 16.2 - - - +
524A PHE* 4.4 8.1 - - + -
525A VAL* 3.6 8.3 - - - -
537A ILE* 4.4 10.1 - - + -
538A VAL* 1.3 78.2 - - - +
540A GLN* 1.3 76.9 + - - +
801A 4CW 2.9 38.6 + - - +
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Residues in contact with GLN 540 (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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485A LYS* 4.9 7.0 - - - +
486A ILE 5.2 0.4 - - - -
487A VAL* 5.1 1.6 - - - +
488A ALA* 3.6 1.0 - - - +
521A VAL 4.3 3.3 - - - +
522A ILE* 3.8 20.2 - - + +
523A GLN* 3.0 56.5 + - + +
525A VAL* 3.7 5.5 - - - +
539A THR* 1.3 89.4 + - - +
541A TYR* 1.3 60.7 + - - +
542A ILE* 3.8 15.3 - - + +
597A TYR* 2.9 39.3 + - - -
603A VAL* 4.8 1.7 - - - +
801A 4CW 3.3 11.1 - - - -
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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