Contacts of the helix formed by residues 586 - 594 (chain B) in PDB entry 3IW4
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 586 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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583B CYS 5.3 0.6 + - - -
585B PRO* 1.3 80.7 - - + +
587B GLY* 1.3 65.4 + - - +
588B GLU* 3.1 4.1 + - - -
589B ARG* 3.2 43.6 + - + +
590B ASP* 2.8 26.5 + - - +
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Residues in contact with GLY 587 (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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517B LYS* 4.9 3.8 - - - +
521B TRP* 5.9 1.8 - - - -
582B GLY* 3.3 38.9 - - - -
583B CYS 4.4 1.7 + - - -
584B GLY 4.0 5.6 + - - -
585B PRO 3.3 8.3 + - - -
586B GLU* 1.3 73.4 - - - +
588B GLU* 1.3 67.8 + - - +
590B ASP* 2.9 24.9 + - - +
591B VAL* 3.5 3.2 + - - +
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Residues in contact with GLU 588 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
452B PHE* 3.4 45.1 - - + +
455B HIS* 5.7 2.4 - - - +
456B LYS* 2.8 47.5 + - - +
517B LYS* 5.5 2.5 + - - +
521B TRP* 5.8 1.3 - - - -
586B GLU 3.1 1.7 + - - +
587B GLY* 1.3 74.8 - - - +
589B ARG* 1.3 69.2 + - - +
591B VAL* 3.3 6.1 + - - +
592B ARG* 3.3 29.7 + - - +
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Residues in contact with ARG 589 (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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586B GLU* 3.2 39.9 + - + +
588B GLU* 1.3 77.5 - - - +
590B ASP* 1.3 59.1 + - - +
591B VAL 2.6 1.6 + - - -
592B ARG* 2.7 14.0 + - + +
593B GLU* 2.5 74.8 + - - +
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Residues in contact with ASP 590 (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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581B LEU* 3.4 23.6 - - + +
582B GLY* 3.5 17.7 + - - +
583B CYS 4.3 5.9 - - - +
586B GLU* 2.8 31.5 - - - +
587B GLY* 2.9 15.0 + - - +
589B ARG* 1.3 75.6 - - - +
591B VAL* 1.3 53.8 + - - +
593B GLU* 2.9 7.8 - - - +
594B HIS* 2.8 33.8 + - - +
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Residues in contact with VAL 591 (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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448B SER* 5.2 2.5 - - - -
452B PHE* 4.6 9.0 - - + -
521B TRP* 4.4 29.4 - - + -
524B TYR* 4.6 10.3 - - + +
568B ILE* 4.9 6.1 - - + -
572B LEU* 4.9 1.3 - - + -
581B LEU* 3.9 26.9 - - + +
582B GLY* 4.0 13.7 - - - -
587B GLY 3.9 11.4 - - - +
588B GLU 3.8 4.0 - - - +
589B ARG 2.6 3.8 + - - -
590B ASP* 1.3 69.6 - - - +
592B ARG* 1.3 68.0 + - - +
593B GLU 2.9 1.9 + - - -
594B HIS* 3.4 9.9 + - - +
597B PHE* 2.8 39.7 - - + -
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Residues in contact with ARG 592 (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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449B ILE* 4.9 4.6 - - - +
452B PHE* 3.0 42.0 - - + +
456B LYS* 5.5 1.6 - - - +
588B GLU* 3.3 38.4 + - - +
589B ARG* 2.7 13.7 + - - +
591B VAL* 1.3 76.9 - - - +
593B GLU* 1.3 67.9 + - - +
597B PHE* 3.6 5.0 - - - +
602B TRP* 3.4 73.2 + - + +
606B GLU* 5.5 3.4 + - - -
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Residues in contact with GLU 593 (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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589B ARG* 2.5 59.9 + - + +
590B ASP* 2.9 14.1 - - - +
591B VAL 2.9 0.2 - - - -
592B ARG* 1.3 77.1 - - - +
594B HIS* 1.3 76.8 - - - +
595B ALA* 4.1 0.7 - - - -
597B PHE* 5.1 0.9 - - - +
598B ARG* 6.0 0.2 - - - -
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Residues in contact with HIS 594 (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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564B GLU* 3.4 28.3 - - + -
567B SER* 2.8 27.9 + - - -
568B ILE* 3.2 24.5 + - + -
571B GLY* 6.1 0.2 - - - -
581B LEU* 4.0 17.3 - - + -
590B ASP 2.8 10.8 + - - +
591B VAL* 3.6 14.6 - - - +
592B ARG 4.0 0.2 - - - +
593B GLU* 1.3 92.6 - - - +
595B ALA* 1.3 66.8 + - + +
596B PHE* 2.7 43.4 + - + +
597B PHE* 3.3 14.1 + - + +
598B ARG 4.4 1.0 + - - -
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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