Contacts of the helix formed by residues 466 - 474 (chain A) in PDB entry 6KC4
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 PRO 466 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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464A ALA 3.4 0.9 - - - +
465A ILE* 1.3 87.6 - - - +
467A ARG* 1.3 66.6 + - - +
468A ILE* 4.0 11.9 - - + +
469A GLU* 2.9 45.7 + - + +
470A ALA* 3.1 10.9 + - - +
483A ARG* 4.4 1.3 - - - -
486A HIS* 4.0 14.1 - - + +
455C LEU* 4.4 10.3 - - + -
492C TYR* 3.7 24.9 - - + +
514C TYR* 4.0 18.6 - - - +
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Residues in contact with ARG 467 (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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466A PRO* 1.3 73.5 - - - +
468A ILE* 1.3 64.2 + - - +
470A ALA* 3.1 5.0 + - - +
471A GLN* 3.0 21.2 + - + +
483A ARG* 3.8 17.4 - - - +
486A HIS* 6.1 0.4 - - - +
504A HIS* 3.4 38.0 + - + +
1B ASP* 3.5 37.8 + - - +
2B GLU 2.9 33.1 + - - +
3B PTR 2.8 56.1 + - - +
509C TYR* 5.0 3.8 - - - +
512C ASN* 5.7 1.1 - - - -
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Residues in contact with ILE 468 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
466A PRO* 4.0 18.6 - - + +
467A ARG* 1.3 77.8 - - - +
469A GLU* 1.3 67.4 + - + +
471A GLN* 3.3 43.0 - - - +
472A GLU* 3.8 5.0 + - - +
509C TYR* 6.5 0.4 - - + -
512C ASN 6.1 0.7 - - - +
514C TYR* 4.4 14.3 + - + +
522C SER* 3.5 39.0 - - - +
523C ASN* 4.4 14.6 - - + +
524C ILE 5.8 0.2 - - - +
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Residues in contact with GLU 469 (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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465A ILE* 3.6 29.0 - - + +
466A PRO* 2.9 25.8 + - + +
468A ILE* 1.3 80.8 - - + +
470A ALA* 1.3 65.8 + - - +
471A GLN 3.1 1.3 - - - -
472A GLU* 3.1 18.4 + - - +
473A LEU* 3.5 15.0 + - + +
454C PRO* 3.5 25.0 - - + +
455C LEU* 2.8 44.3 + - - +
456C ALA* 5.1 1.6 + - - +
523C ASN* 6.4 1.1 - - + -
525C PRO* 5.6 1.4 - - - +
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Residues in contact with ALA 470 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
465A ILE* 4.0 13.9 - - + +
466A PRO 3.1 11.1 + - - +
467A ARG* 3.1 8.9 + - - +
469A GLU* 1.3 76.0 - - - +
471A GLN* 1.3 63.5 + - - +
473A LEU* 3.0 11.2 + - - -
474A LEU* 3.2 33.0 + - + +
481A LEU* 4.4 9.2 - - + -
483A ARG* 4.0 25.8 - - - +
495A SER* 4.5 2.7 - - - +
502A ARG* 5.5 0.2 - - - -
504A HIS* 4.8 3.4 - - + -
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Residues in contact with GLN 471 (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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467A ARG* 3.0 12.0 + - + +
468A ILE* 3.3 33.6 + - - +
469A GLU 3.1 0.6 - - - -
470A ALA* 1.3 76.5 - - - +
472A GLU* 1.3 64.8 + - - +
474A LEU 3.3 7.8 - - - +
502A ARG* 3.0 63.4 + - + +
504A HIS* 5.8 1.1 - - - -
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Residues in contact with GLU 472 (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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468A ILE 3.8 4.8 + - - +
469A GLU* 3.1 13.0 + - - +
471A GLN* 1.3 82.0 + - - +
473A LEU* 1.3 65.8 + - + +
474A LEU 3.5 0.4 + - - -
475A LYS* 3.5 36.9 + - - +
502A ARG* 5.2 0.9 - - - +
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Residues in contact with LEU 473 (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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462A HIS* 3.7 29.8 - - + +
465A ILE* 3.9 16.8 - - + -
469A GLU* 3.7 16.4 - - + +
470A ALA 3.0 7.8 + - - +
472A GLU* 1.3 82.8 - - + +
474A LEU* 1.3 60.2 + - - +
475A LYS* 3.9 6.7 + - - +
479A ASP* 4.2 0.5 - - - +
481A LEU* 4.0 12.1 - - + -
550A ILE* 3.6 37.9 - - + +
551A PRO 5.3 2.5 - - - +
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Residues in contact with LEU 474 (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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470A ALA* 3.2 24.1 + - + +
471A GLN 3.3 0.3 - - - +
472A GLU 3.5 0.2 - - - -
473A LEU* 1.3 76.5 - - - +
475A LYS* 1.3 60.9 + - - +
479A ASP* 3.7 35.0 - - + +
480A PHE* 3.8 11.9 - - - +
481A LEU* 4.0 15.0 - - + -
495A SER* 3.5 37.7 - - - +
496A VAL 3.9 7.0 - - - +
497A TYR* 3.3 15.0 - - + -
502A ARG* 3.0 43.8 + - + -
504A HIS* 5.0 0.9 - - + -
550A ILE* 4.0 5.8 - - + -
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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