Contacts of the strand formed by residues 439 - 443 (chain F) in PDB entry 3IKM
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 PHE 439 (chain F).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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382F LYS* 4.7 13.0 - - - -
383F VAL* 2.8 34.2 - - + +
437F ILE 4.5 0.5 - - - +
438F LEU* 1.3 89.8 - - + +
440F THR* 1.3 70.1 + - - +
441F VAL* 5.5 2.7 - - + -
456F ARG 4.3 5.8 - - - +
457F SER 4.5 0.4 - - - -
458F ARG* 2.8 55.6 - - + +
474F PHE* 3.8 25.6 - + - -
475F LEU* 4.4 12.8 - - + -
478F TYR* 3.6 45.8 - + - -
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Residues in contact with THR 440 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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383F VAL* 3.9 1.8 - - - -
384F ALA* 3.6 14.8 - - + -
386F ASP* 3.1 16.0 + - - -
429F TYR* 4.8 9.0 - - - -
432F TYR* 3.6 32.0 - - + -
437F ILE* 3.7 18.2 - - + +
439F PHE* 1.3 82.2 - - - +
441F VAL* 1.3 60.5 + - - +
442F LEU* 5.8 0.7 - - - +
456F ARG 3.0 8.8 - - - +
457F SER* 2.5 47.5 + - - -
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Residues in contact with VAL 441 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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383F VAL* 5.1 7.9 - - + -
384F ALA 3.8 1.0 + - - -
385F LEU* 3.5 27.1 - - + +
386F ASP* 2.5 28.5 + - - +
402F LEU* 4.8 6.1 - - + -
439F PHE* 5.5 2.9 - - + -
440F THR* 1.3 82.2 - - - +
442F LEU* 1.3 59.7 + - - +
443F VAL* 3.3 2.1 + - - +
454F HIS* 3.0 47.1 - - + +
455F LEU* 4.0 2.9 - - + -
456F ARG 3.8 10.1 - - - +
468F ILE* 5.1 2.0 - - + -
472F LYS* 5.0 9.0 - - - -
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Residues in contact with LEU 442 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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386F ASP* 2.8 36.1 + - + +
387F VAL 4.2 9.9 - - - +
388F GLY* 5.1 2.0 - - - +
419F GLU* 3.9 21.5 - - - +
420F THR* 5.9 1.8 - - + -
425F LEU* 3.5 40.8 - - + -
428F LEU* 5.3 0.7 - - + -
429F TYR* 5.0 4.3 - - + +
440F THR* 4.2 0.6 - - - +
441F VAL* 1.3 68.6 - - - +
443F VAL* 1.3 68.9 + - - +
444F THR* 3.0 10.6 + - + +
455F LEU* 2.5 45.3 - - + +
456F ARG* 5.8 2.0 - - - -
457F SER* 4.8 5.0 + - - +
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Residues in contact with VAL 443 (chain F).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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386F ASP 2.4 37.3 + - - +
387F VAL* 2.8 37.0 - - + -
388F GLY 2.4 29.8 + - - +
395F LEU* 2.9 33.9 - - + +
398F VAL* 4.4 8.7 - - + -
399F CYS* 4.5 2.7 - - + +
402F LEU* 4.2 24.5 - - + -
441F VAL 3.3 3.6 + - - +
442F LEU* 1.3 69.9 - - - +
444F THR* 1.3 58.9 + - - +
447F THR* 5.2 5.8 - - + +
455F LEU* 3.7 7.4 - - - -
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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