Contacts of the helix formed by residues 583 - 588 (chain A) in PDB entry 6TXA
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 ASP 583 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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456A TYR* 5.9 2.3 - - - -
457A VAL 4.4 8.9 - - - +
458A GLY* 5.1 4.5 - - - -
459A GLU 5.8 0.2 + - - -
581A PRO* 3.9 10.2 - - - +
582A GLN* 1.3 77.6 + - + +
584A GLY* 1.3 62.4 + - - +
585A ASP 3.4 2.5 - - - -
586A VAL* 3.1 23.2 + - + +
587A ILE* 3.1 43.7 + - + +
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Residues in contact with GLY 584 (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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570A VAL* 4.8 3.6 - - - -
580A LYS* 4.9 2.7 - - - +
581A PRO* 2.9 27.9 + - - -
582A GLN 3.3 1.6 + - - -
583A ASP* 1.3 77.0 - - - +
585A ASP* 1.3 61.2 + - - +
587A ILE* 3.9 9.3 - - - +
588A ALA* 3.1 23.2 + - - +
592A THR* 3.4 21.0 - - - +
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Residues in contact with ASP 585 (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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580A LYS* 2.9 30.3 + - - +
582A GLN 5.1 1.0 + - - +
583A ASP 3.4 0.6 - - - -
584A GLY* 1.3 75.0 - - - +
586A VAL* 1.3 61.5 + - + +
589A PRO* 3.2 27.5 - - - +
592A THR* 3.0 30.6 + - - +
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Residues in contact with VAL 586 (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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583A ASP* 3.1 17.1 + - + +
585A ASP* 1.3 81.5 - - + +
587A ILE* 1.3 69.4 + - + +
588A ALA 3.3 0.7 + - - -
589A PRO* 3.6 12.8 - - - +
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Residues in contact with ILE 587 (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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457A VAL 4.1 12.8 - - - +
563A TYR* 4.6 4.9 - - - -
566A ARG* 3.8 51.4 - - + +
567A GLN* 3.0 20.1 + - - -
569A PHE* 4.6 6.7 - - + -
570A VAL* 3.6 23.8 - - + -
581A PRO* 5.0 0.4 - - + -
583A ASP* 3.1 44.0 + - + +
584A GLY* 3.9 8.3 - - - +
586A VAL* 1.3 80.5 - - + +
588A ALA* 1.3 60.2 + - - +
589A PRO* 3.8 3.0 - - - +
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Residues in contact with ALA 588 (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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566A ARG 4.3 1.3 - - - +
567A GLN* 3.3 24.9 - - - +
570A VAL* 3.7 35.4 - - + -
584A GLY 3.1 13.0 + - - +
587A ILE* 1.3 80.1 - - - +
589A PRO* 1.3 66.7 - - - +
590A LEU 3.2 2.2 - - - -
591A ILE* 3.2 15.2 + - + -
592A THR* 3.4 10.9 + - - +
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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