Contacts of the helix formed by residues 477 - 485 (chain O) in PDB entry 5MQF
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 ARG 477 (chain O).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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473O VAL* 4.1 8.3 - - + +
476O ARG* 1.3 79.8 - - + +
478O PHE* 1.3 60.2 + - + +
480O TYR* 3.3 3.5 + - - +
481O GLU* 2.9 30.6 + - - +
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Residues in contact with PHE 478 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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449O GLN* 5.0 8.3 - - + +
453O LYS* 4.2 25.8 - - + -
476O ARG 3.3 0.6 + - - -
477O ARG* 1.3 79.1 - - - +
479O GLN* 1.3 56.6 + - - +
481O GLU* 3.9 5.1 - - - +
482O GLU* 2.9 33.6 + - - +
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Residues in contact with GLN 479 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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578M ASP* 6.2 3.8 - - + -
474O SER 3.6 17.9 - - - +
475O LYS* 3.5 17.0 - - - +
476O ARG 3.4 1.2 + - - -
477O ARG 3.3 0.8 - - - -
478O PHE* 1.3 80.1 - - - +
480O TYR* 1.3 56.4 + - - +
482O GLU* 4.2 2.2 - - - +
483O GLU* 2.9 34.4 + - - +
500O LEU* 6.4 0.7 - - - -
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Residues in contact with TYR 480 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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475O LYS 3.2 17.0 + - - +
476O ARG* 3.6 17.9 + - + -
477O ARG 3.3 4.3 + - - +
479O GLN* 1.3 78.7 - - - +
481O GLU* 1.3 50.5 + - - +
483O GLU* 4.7 2.9 - - - -
484O VAL* 2.5 38.4 + - - +
500O LEU* 5.8 4.9 - - + -
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Residues in contact with GLU 481 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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477O ARG 2.9 17.7 + - - +
478O PHE* 3.9 6.3 - - - +
480O TYR* 1.3 76.3 - - - +
482O GLU* 1.3 60.8 + - - +
484O VAL* 3.4 4.9 - - - +
485O LYS* 2.9 31.2 + - - +
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Residues in contact with GLU 482 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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478O PHE 2.9 17.7 + - - +
479O GLN* 4.2 2.5 - - - +
481O GLU* 1.3 75.4 - - - +
483O GLU* 1.3 60.1 + - - +
485O LYS 2.9 23.6 - - - +
486O ALA* 3.9 5.9 + - - +
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Residues in contact with GLU 483 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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479O GLN 2.9 19.9 + - - +
480O TYR* 4.7 1.8 - - - +
482O GLU* 1.3 74.8 - - - +
484O VAL* 1.3 64.7 + - - +
485O LYS 4.6 0.2 - - - -
486O ALA* 4.6 8.3 + - - +
493O ALA 5.1 1.2 - - - +
496O ASP* 4.9 14.8 - - + +
497O TYR* 4.0 19.2 + - - +
500O LEU* 4.6 21.3 - - + -
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Residues in contact with VAL 484 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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480O TYR 2.5 29.7 + - - +
481O GLU* 3.1 8.4 + - - +
483O GLU* 1.3 81.7 - - - +
485O LYS* 1.3 59.5 + - + +
486O ALA 3.8 1.7 + - - -
497O TYR* 5.5 3.3 - - - +
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Residues in contact with LYS 485 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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481O GLU 2.9 11.6 + - - +
482O GLU* 2.9 17.8 - - - +
484O VAL* 1.3 74.8 - - + +
486O ALA* 1.3 60.1 + - - +
487O ASN 3.5 3.1 - - - +
488O PRO* 5.9 0.9 - - - -
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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