Contacts of the helix formed by residues 526 - 530 (chain D) in PDB entry 5U03
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 HIS 526 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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371D GLY* 5.8 1.8 - - - -
398D VAL* 3.6 20.9 - - + +
399D CYS* 4.0 13.5 - - + -
476D GLU* 4.3 0.9 - - - -
477D ARG* 2.7 29.6 + - - +
478D HIS 4.0 3.1 - - - -
479D ARG* 3.1 54.5 + - + +
524D GLN 3.4 17.6 + - - -
525D TYR* 1.4 70.6 - - - +
527D PRO* 1.3 66.7 - - - +
528D GLU* 3.2 23.1 + - - +
529D PHE* 3.5 27.6 + + + +
530D LEU* 4.6 0.9 + - - +
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Residues in contact with PRO 527 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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396D LEU* 6.4 0.2 - - + -
398D VAL* 5.3 2.2 - - + -
476D GLU* 3.3 23.1 - - - +
523D VAL* 4.5 7.0 - - + -
525D TYR* 3.3 25.6 - - + +
526D HIS* 1.3 83.7 - - - +
528D GLU* 1.3 65.9 + - - +
529D PHE 2.9 6.5 - - - -
530D LEU* 2.9 19.8 + - - +
531D SER* 3.0 13.0 + - - -
537D SER* 3.8 20.4 - - - +
539D PRO* 3.6 25.4 - - + -
540D TYR* 3.9 9.4 - - + +
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Residues in contact with GLU 528 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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57D GLU* 6.1 0.4 - - + -
76D ARG* 5.3 3.6 + - - -
316D SER* 4.0 34.3 - - - +
317D VAL* 4.0 16.8 - - + +
320D ALA* 4.0 15.6 - - + +
323D HIS* 5.8 0.5 - - - -
398D VAL* 5.1 3.9 - - - +
526D HIS* 3.4 29.6 + - - +
527D PRO* 1.3 89.8 - - - +
529D PHE* 1.3 73.5 + - + +
530D LEU 3.2 0.4 + - - -
531D SER* 3.9 12.0 + - - +
532D ARG* 5.0 0.3 + - - -
540D TYR* 2.7 37.5 + - + +
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Residues in contact with PHE 529 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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57D GLU* 4.3 21.8 - - + -
58D VAL 3.5 25.6 - - - -
59D PHE* 3.4 48.6 - + + -
60D VAL* 4.3 11.9 - - + -
69D LEU* 4.7 1.1 - - + -
316D SER* 4.5 11.2 - - - -
477D ARG* 3.6 27.1 - - + -
479D ARG* 5.6 4.9 - - - -
526D HIS* 3.5 47.1 - + + +
527D PRO 2.9 1.0 - - - -
528D GLU* 1.3 88.7 - - + +
530D LEU* 1.3 58.0 + - - +
532D ARG* 2.9 18.9 + - - -
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Residues in contact with LEU 530 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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59D PHE* 5.9 0.2 - - + -
81D ARG* 4.8 8.5 - - - +
452D LYS* 5.2 7.4 - - - +
475D GLU 3.7 19.5 - - - +
476D GLU* 3.5 33.0 - - - +
477D ARG* 3.6 43.5 - - - +
526D HIS 4.9 0.4 - - - +
527D PRO 2.9 6.3 + - - +
529D PHE* 1.3 80.3 - - + +
531D SER* 1.3 68.0 + - - +
532D ARG* 3.3 20.8 + - - +
535D LYS 4.4 2.4 - - - +
537D SER* 5.3 1.6 - - - -
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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