Contacts of the strand formed by residues 439 - 443 (chain A) in PDB entry 2G4C
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 A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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382A LYS 3.6 4.2 + - - -
383A VAL* 3.3 14.3 - - + +
384A ALA 3.3 21.5 + - - -
437A ILE* 3.3 7.2 - - - +
438A LEU* 1.3 91.9 - - + +
440A THR* 1.3 65.8 + - - +
441A VAL* 5.0 0.4 - - + -
455A LEU* 4.4 20.0 - - + -
456A ARG 3.3 18.2 - - - +
457A SER* 3.7 22.2 - - - -
474A PHE* 4.2 14.6 - + - -
475A LEU* 3.5 30.5 - - + -
478A TYR* 3.5 56.3 - + - -
479A ILE* 6.1 0.2 - - + -
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Residues in contact with THR 440 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
384A ALA* 4.1 6.1 - - + -
385A LEU 4.9 0.2 - - - +
386A ASP* 5.1 3.6 - - - +
428A LEU* 5.7 0.4 - - + -
429A TYR* 3.6 33.8 + - + -
432A TYR* 3.4 44.1 - - + +
437A ILE* 5.1 1.0 - - - +
439A PHE* 1.3 79.3 + - - +
441A VAL* 1.3 68.5 + - - +
442A LEU* 3.6 2.9 + - + +
454A HIS 3.7 3.5 - - - +
456A ARG* 3.2 40.5 + - - -
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Residues in contact with VAL 441 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
383A VAL* 4.0 16.2 - - + -
384A ALA 3.6 5.4 + - - +
385A LEU* 2.9 59.9 - - + -
386A ASP 3.4 1.4 + - - -
402A LEU* 4.6 11.9 - - + -
439A PHE* 4.0 1.5 - - + -
440A THR* 1.3 75.0 - - - +
442A LEU* 1.3 61.3 + - - +
443A VAL* 5.3 3.4 - - + -
453A ILE* 4.3 9.0 - - + -
454A HIS 4.0 6.3 - - - -
455A LEU* 3.7 19.1 - - + +
471A LEU* 3.5 32.5 - - + -
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Residues in contact with LEU 442 (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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386A ASP* 3.8 16.8 - - + +
387A VAL 4.0 2.0 - - - +
388A GLY* 3.6 12.3 - - - +
389A ARG* 4.7 10.1 - - - +
425A LEU* 4.0 27.4 - - + -
428A LEU* 6.0 2.5 - - + -
429A TYR* 4.2 10.8 - - + +
440A THR* 3.6 5.1 + - + +
441A VAL* 1.3 76.6 - - - +
443A VAL* 1.3 77.7 + - - +
444A THR* 3.5 21.8 - - + -
453A ILE* 3.6 9.5 - - - +
454A HIS* 3.0 50.9 + - + +
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Residues in contact with VAL 443 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
385A LEU* 5.5 2.2 - - + -
386A ASP 3.2 11.3 + - - +
387A VAL* 3.2 1.0 - - - -
388A GLY 2.8 28.9 + - - -
395A LEU* 2.8 29.7 - - + +
398A VAL* 3.6 29.4 - - + -
399A CYS* 4.5 9.2 - - - -
402A LEU* 4.8 11.0 - - + -
441A VAL* 5.3 4.7 - - + -
442A LEU* 1.3 75.2 - - - +
444A THR* 1.3 62.7 + - - +
447A THR* 3.8 17.0 - - + +
448A LEU* 5.9 1.3 - - + -
453A ILE* 3.5 18.6 - - + -
468A ILE* 4.3 5.6 - - + -
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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