Contacts of the helix formed by residues 580 - 584 (chain A) in PDB entry 4BWM
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 ASN 580 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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545A TYR* 2.6 32.6 + - - -
576A SER* 3.4 26.5 + - - +
577A SER* 4.6 1.6 - - - -
578A ASP 3.6 3.6 - - - +
579A PRO* 1.3 71.6 - - - +
581A LEU* 1.3 56.8 + - - +
582A GLN* 3.0 26.1 + - - +
583A ASN* 3.4 21.2 - - - +
1839A FMT 3.9 16.9 + - - +
7G C 4.1 17.2 + - - -
8G G 4.2 15.0 + - - -
1015G FMT 5.4 0.2 - - - +
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Residues in contact with LEU 581 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
562A THR* 4.3 5.4 - - + +
564A PHE* 4.2 9.0 - - + -
576A SER* 2.9 17.4 + - - +
579A PRO* 3.7 26.9 - - + +
580A ASN* 1.3 71.2 - - - +
582A GLN* 1.3 64.5 + - - +
583A ASN 3.2 1.3 + - - -
584A ILE* 3.4 34.7 + - + +
595A ARG* 5.1 0.5 + - - -
598A PHE* 4.3 17.0 - - + -
781A LEU* 4.1 28.9 - - + -
782A GLN 4.0 18.4 - - - +
783A VAL* 3.5 28.0 - - + +
784A HIS* 4.1 3.5 + - - -
827A TRP* 4.4 9.2 - - + -
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Residues in contact with GLN 582 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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573A ARG* 4.5 7.3 + - - -
576A SER* 4.3 1.0 + - - +
580A ASN* 3.0 19.7 + - - +
581A LEU* 1.3 78.8 - - - +
583A ASN* 1.3 71.2 + - - +
584A ILE 3.3 1.6 + - - +
783A VAL* 3.8 6.3 - - + +
784A HIS* 3.0 41.3 + - - -
111B C 2.6 31.5 + - - +
112B DOC 2.8 25.0 + - - -
6G G 3.2 7.1 - - - +
7G C 4.7 2.0 - - - +
1015G FMT 2.8 38.2 - - - +
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Residues in contact with ASN 583 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
540A LYS* 5.9 3.6 - - - -
541A LEU* 4.3 2.8 - - - +
545A TYR* 3.1 23.2 + - + +
580A ASN* 3.4 16.6 + - - +
581A LEU 3.2 1.2 + - - -
582A GLN* 1.3 85.5 - - - +
584A ILE* 1.3 61.6 + - - +
585A PRO* 3.3 10.0 - - - +
1839A FMT 3.1 16.5 + - - +
110B G 3.1 25.0 + - - -
111B C 3.5 26.3 + - - +
8G G 3.1 29.9 + - - +
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Residues in contact with ILE 584 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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545A TYR* 3.5 34.1 - - + -
579A PRO* 5.6 0.4 - - + -
581A LEU* 3.8 34.5 - - + +
582A GLN 3.3 2.3 - - - +
583A ASN* 1.3 77.7 - - - +
585A PRO* 1.3 66.2 - - + +
586A VAL* 3.5 1.0 + - - +
591A GLY* 3.7 23.3 - - - +
594A ILE* 4.0 27.6 - - + -
595A ARG* 2.9 35.4 + - + +
598A PHE* 4.7 4.9 - - + -
784A HIS* 4.1 10.2 - - - -
827A TRP* 4.7 13.5 - - + -
111B C 4.3 1.7 - - - +
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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
------------------------------------------------------------
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