Contacts of the helix formed by residues 555 - 564 (chain E) in PDB entry 5IIO
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 THR 555 (chain E).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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500E ALA* 3.4 13.0 - - - +
553E THR* 4.1 0.3 - - - -
554E PRO* 1.3 86.3 - - + +
556E GLU* 1.3 65.4 + - - +
557E LYS* 3.4 13.4 + - - +
558E ASP* 2.7 47.3 + - - +
559E VAL* 3.5 4.0 + - - +
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Residues in contact with GLU 556 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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419E ARG* 2.4 39.1 + - - -
500E ALA* 3.6 22.3 - - - +
503E LEU* 4.0 14.3 - - + +
504E LEU* 3.5 21.8 + - + -
555E THR* 1.3 72.5 - - - +
557E LYS* 1.3 63.5 + - - +
559E VAL* 2.9 20.2 + - - +
560E PHE* 3.2 17.6 + - + -
567E TYR* 3.7 17.0 + - + +
573E ARG* 2.7 36.7 + - - +
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Residues in contact with LYS 557 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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555E THR* 3.2 11.5 + - - +
556E GLU* 1.3 77.7 - - - +
558E ASP* 1.3 57.8 + - - +
560E PHE* 3.4 4.0 + - - +
561E ARG* 2.8 30.5 + - - +
567E TYR* 3.5 52.4 - - + +
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Residues in contact with ASP 558 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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552E PRO 4.9 0.2 - - - +
553E THR* 3.9 18.6 - - + -
554E PRO* 3.4 17.9 - - + +
555E THR* 2.7 42.8 + - - +
557E LYS* 1.3 76.2 - - - +
559E VAL* 1.3 59.4 + - - +
561E ARG* 2.9 35.2 + - - +
562E LEU* 2.8 35.3 + - - +
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Residues in contact with VAL 559 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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500E ALA* 4.6 4.0 - - + -
501E CYS* 4.0 15.5 - - - +
504E LEU* 3.7 28.3 - - + -
516E MET* 4.5 0.9 - - + -
527E LEU* 4.0 14.6 - - + -
532E LEU* 4.2 8.0 - - + +
553E THR* 3.7 30.5 - - + +
555E THR 3.5 4.2 + - - +
556E GLU* 2.9 15.9 + - - +
558E ASP* 1.3 76.8 - - - +
560E PHE* 1.3 62.8 + - - +
562E LEU* 3.3 2.3 + - - +
563E LEU* 3.0 41.5 + - + +
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Residues in contact with PHE 560 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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504E LEU* 3.8 21.3 - - + -
512E PHE* 3.6 28.5 - + - -
516E MET* 3.9 16.2 - - + -
556E GLU 3.2 19.6 + - - -
557E LYS 3.6 6.7 - - - +
559E VAL* 1.3 80.7 - - + +
561E ARG* 1.3 63.1 + - - +
563E LEU* 3.0 7.2 + - - +
564E GLY 3.0 4.3 + - - -
565E LEU* 2.9 50.4 + - + +
566E PRO 3.3 17.7 - - - -
567E TYR* 3.5 32.1 - + - -
568E ARG* 3.7 29.8 - - + -
573E ARG* 3.9 6.5 - - - -
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Residues in contact with ARG 561 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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552E PRO 5.3 2.2 + - - -
554E PRO* 5.7 0.8 - - - +
557E LYS 2.8 20.5 + - - +
558E ASP* 2.9 36.6 + - - +
560E PHE* 1.3 71.6 - - - +
562E LEU* 1.3 87.8 + - - +
564E GLY* 2.9 20.8 + - - -
565E LEU 4.1 6.0 + - - +
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Residues in contact with LEU 562 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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523E LYS* 5.2 0.5 - - - +
525E MET* 3.5 17.7 - - - +
532E LEU* 3.7 18.4 - - + -
551E LEU* 4.2 18.2 - - + -
552E PRO 3.9 11.4 - - - +
553E THR* 3.7 22.7 - - + -
558E ASP 2.8 23.3 + - - +
561E ARG* 1.3 103.1 - - + +
563E LEU* 1.3 60.0 + - - +
564E GLY 3.3 0.4 + - - -
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Residues in contact with LEU 563 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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516E MET* 3.8 38.6 - - + +
519E LEU* 3.7 23.8 - - + +
520E ALA* 3.6 28.9 - - + +
523E LYS* 2.9 29.0 + - + -
525E MET* 3.5 24.7 - - + -
527E LEU* 4.6 3.8 - - + -
532E LEU* 4.0 13.7 - - + -
559E VAL* 3.0 28.2 + - + +
560E PHE 3.0 4.9 + - - +
562E LEU* 1.3 76.7 - - - +
564E GLY* 1.3 59.4 + - - +
565E LEU* 4.1 4.4 - - + +
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Residues in contact with GLY 564 (chain E).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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523E LYS* 4.1 10.3 + - - -
561E ARG 2.9 15.0 + - - -
562E LEU 3.3 1.0 + - - -
563E LEU* 1.3 80.0 - - - +
565E LEU* 1.3 62.7 + - - +
566E PRO* 4.3 2.9 - - - +
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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