Contacts of the helix formed by residues 461 - 471 (chain B) in PDB entry 4PKO
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 GLU 461 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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455B VAL* 3.8 5.5 - - - +
460B GLU* 1.3 73.3 - - - +
462B PRO* 1.3 69.1 - - + +
463B SER* 3.3 3.6 - - - +
464B VAL* 3.4 34.6 + - + +
465B VAL* 3.6 10.6 + - - +
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Residues in contact with PRO 462 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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452B ARG* 3.3 44.0 - - + +
455B VAL* 4.0 12.8 - - + -
456B LEU* 3.9 24.2 - - + -
460B GLU 3.1 10.3 - - - +
461B GLU* 1.3 83.1 - - + +
463B SER* 1.3 63.9 + - - +
465B VAL* 3.4 1.9 + - - +
466B ALA* 2.9 33.5 + - - +
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Residues in contact with SER 463 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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452B ARG* 4.6 12.7 + - - +
461B GLU* 3.3 3.0 - - - +
462B PRO* 1.3 81.5 - - - +
464B VAL* 1.3 60.7 + - - +
466B ALA* 3.4 5.2 + - - +
467B ASN* 2.9 36.9 + - - +
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Residues in contact with VAL 464 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
461B GLU* 3.4 32.7 + - + +
462B PRO 3.2 0.4 - - - -
463B SER* 1.3 79.4 - - - +
465B VAL* 1.3 64.0 + - + +
467B ASN* 3.9 3.3 - - - +
468B THR* 2.8 40.0 + - + +
485B TYR* 4.6 5.8 - - - +
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Residues in contact with VAL 465 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
451B LEU* 4.1 4.9 - - + -
455B VAL* 3.6 40.8 - - + -
460B GLU* 5.1 5.6 - - + +
461B GLU 3.6 4.0 + - - +
462B PRO 3.4 3.6 + - - +
464B VAL* 1.3 76.3 - - + +
466B ALA* 1.3 61.8 + - - +
468B THR* 3.1 6.6 + - - -
469B VAL* 2.8 41.3 + - + +
478B TYR* 3.4 49.4 - - + -
485B TYR* 3.7 10.8 - - + +
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Residues in contact with ALA 466 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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420B ILE* 5.0 6.3 - - + -
448B GLU* 5.1 0.7 - - + +
451B LEU* 4.0 17.9 - - + +
452B ARG* 3.6 32.1 - - + +
462B PRO 2.9 18.7 + - - +
463B SER 3.7 2.7 - - - +
465B VAL* 1.3 77.7 - - - +
467B ASN* 1.3 52.4 + - - +
469B VAL* 3.2 2.4 + - - +
470B LYS* 2.7 48.2 + - - +
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Residues in contact with ASN 467 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
452B ARG* 5.7 1.2 + - - -
463B SER* 2.9 20.2 + - - +
464B VAL* 3.9 4.5 - - - +
466B ALA* 1.3 76.4 - - - +
468B THR* 1.3 61.5 + - + +
470B LYS* 3.0 24.6 + - - +
471B GLY* 2.9 27.2 + - - -
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Residues in contact with THR 468 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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464B VAL* 2.8 23.7 + - + +
465B VAL 3.1 5.5 + - - -
467B ASN* 1.3 77.9 - - + +
469B VAL* 1.3 58.7 + - - +
471B GLY* 3.8 7.3 + - - +
472B GLY 4.1 2.1 + - - -
476B TYR* 3.2 23.7 + - - -
485B TYR* 2.8 34.1 + - + +
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Residues in contact with VAL 469 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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417B VAL* 3.8 28.5 - - + -
420B ILE* 4.6 8.7 - - + -
421B ARG* 3.0 19.6 + - - +
451B LEU* 4.1 15.5 - - + -
465B VAL* 2.8 41.7 + - + +
466B ALA* 3.6 5.6 - - - +
468B THR* 1.3 76.4 - - - +
470B LYS* 1.3 63.2 + - - +
471B GLY 3.1 2.1 + - - -
472B GLY* 3.3 5.7 + - - -
476B TYR* 4.1 11.0 - - + +
477B GLY* 4.3 2.5 - - - -
478B TYR* 4.0 19.3 - - + +
485B TYR* 4.0 10.1 - - + -
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Residues in contact with LYS 470 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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420B ILE* 3.3 30.1 - - + +
421B ARG* 3.8 9.3 + - - +
424B SER* 6.0 1.8 - - - -
448B GLU* 3.2 35.0 + - - +
452B ARG* 4.7 4.0 - - - +
466B ALA* 2.7 30.2 + - - +
467B ASN* 3.6 24.0 + - - +
469B VAL* 1.3 73.1 - - - +
471B GLY* 1.3 62.1 + - - +
472B GLY 3.3 7.0 + - - +
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Residues in contact with GLY 471 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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467B ASN 2.9 13.4 + - - -
468B THR* 4.2 5.2 - - - -
469B VAL 3.1 1.2 - - - -
470B LYS* 1.3 79.1 - - - +
472B GLY* 1.3 58.2 + - - +
473B ASP* 5.0 2.4 - - - +
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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