Contacts of the helix formed by residues 890 - 894 (chain A) in PDB entry 3CMM
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 ASP 890 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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888A LYS* 3.6 1.2 - - + +
889A THR* 1.3 83.5 - - + +
891A ILE* 1.3 66.7 + - - +
892A GLU* 3.1 27.8 + - - +
893A GLN* 2.9 51.3 + - + +
894A TYR* 3.7 9.1 - - - -
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Residues in contact with ILE 891 (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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582A LEU* 3.8 35.2 - - + +
583A THR* 4.4 4.7 - - + -
889A THR 3.5 4.8 + - - -
890A ASP* 1.3 75.0 + - - +
892A GLU* 1.3 66.6 + - + +
893A GLN 3.0 5.6 + - - -
894A TYR* 3.1 19.0 + - + +
910A GLU* 3.7 23.0 - - + +
911A PRO* 3.3 32.5 - - + +
912A ILE 4.0 2.2 - - - +
913A ALA* 3.7 32.3 - - + +
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Residues in contact with GLU 892 (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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395A GLU* 4.8 5.0 - - - +
890A ASP* 3.1 21.2 + - - +
891A ILE* 1.3 81.1 - - + +
893A GLN* 1.3 66.3 + - - +
894A TYR 3.4 4.2 - - - +
895A LYS* 5.8 2.8 - - - -
910A GLU* 3.3 24.3 - - - +
48B LYS* 2.9 28.7 + - - -
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Residues in contact with GLN 893 (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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395A GLU* 3.4 34.6 - - + +
883A LYS* 3.0 25.1 + - - -
888A LYS* 3.7 32.4 + - + +
890A ASP* 2.9 42.1 + - + +
891A ILE 3.0 0.8 + - - -
892A GLU* 1.3 87.5 + - - +
894A TYR* 1.3 62.2 + - + +
895A LYS* 4.3 1.5 - - - +
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Residues in contact with TYR 894 (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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577A VAL* 4.0 9.9 - - + -
579A ILE* 3.5 40.1 - - + +
582A LEU* 4.4 8.3 - - + -
880A GLU* 3.2 14.8 - - + +
883A LYS* 3.7 24.3 + - + -
884A LEU* 4.2 14.2 - - + +
887A ASN* 4.4 0.5 - - - -
888A LYS* 2.8 53.5 + - + +
890A ASP 3.7 16.4 - - - -
891A ILE* 3.1 10.4 + - - +
892A GLU 4.3 2.4 - - - +
893A GLN* 1.3 81.7 - - + +
895A LYS* 1.3 64.1 + - - +
910A GLU* 3.6 10.9 - - - +
911A PRO* 3.3 36.0 - - + +
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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