Contacts of the helix formed by residues 924 - 930 (chain C) in PDB entry 6DBV
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 CYS 924 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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913C PRO* 4.6 21.8 - - - -
914C VAL* 5.1 1.9 - - - +
917C SER* 4.8 1.3 - - - -
920C PRO* 3.1 22.8 + - - +
923C ASP* 1.3 104.9 - - - +
925C PRO* 1.3 65.7 - - - +
926C ASP* 3.1 12.7 + - - +
927C GLN* 3.1 29.7 + - - +
928C LEU 4.1 2.4 + - - -
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Residues in contact with PRO 925 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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920C PRO 2.9 14.1 - - - +
921C SER* 4.4 12.8 - - - +
922C ARG 4.7 5.2 - - - +
923C ASP 3.9 5.4 - - - +
924C CYS* 1.3 86.4 - - - +
926C ASP* 1.3 57.9 + - + +
928C LEU* 3.3 14.5 + - + +
929C CYS* 3.0 31.5 + - - +
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Residues in contact with ASP 926 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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924C CYS* 3.1 17.5 - - - +
925C PRO* 1.3 76.4 - - - +
927C GLN* 1.3 99.8 + - - +
929C CYS* 3.3 4.5 + - - +
930C GLN* 3.2 25.4 + - - +
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Residues in contact with GLN 927 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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910C GLN* 3.3 37.1 + - + +
913C PRO* 5.7 5.2 - - - +
914C VAL* 3.6 20.3 - - + +
924C CYS* 3.1 28.2 - - - +
926C ASP* 1.3 101.9 + - - +
928C LEU* 1.3 52.6 + - - +
930C GLN* 3.1 7.5 + - - +
931C TYR* 2.6 40.6 + - + +
934C ASN* 6.2 0.9 - - - +
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Residues in contact with LEU 928 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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914C VAL* 4.5 10.3 - - + +
920C PRO* 4.3 22.2 - - + -
921C SER* 4.6 16.4 - - - +
924C CYS 4.1 4.9 + - - +
925C PRO* 3.3 25.2 + - + +
926C ASP 3.2 0.6 - - - -
927C GLN* 1.3 77.9 - - - +
929C CYS* 1.3 62.4 + - + +
931C TYR* 3.1 26.2 + - + +
932C SER* 4.5 1.2 + - - -
966C PRO* 5.5 7.6 - - + -
969C VAL* 4.3 23.8 - - + -
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Residues in contact with CYS 929 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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925C PRO 3.0 15.1 + - - +
926C ASP* 4.0 5.2 - - - +
928C LEU* 1.3 79.0 - - + +
930C GLN* 1.3 64.6 + - + +
932C SER 5.4 0.6 + - - -
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Residues in contact with GLN 930 (chain C).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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910C GLN* 5.9 1.6 - - - +
926C ASP 3.2 17.1 + - - +
927C GLN* 3.1 8.5 + - - +
929C CYS* 1.3 81.5 + - + +
931C TYR* 1.3 58.2 + - - +
932C SER 3.5 1.6 - - - -
933C TYR* 3.3 35.9 + - + +
934C ASN* 2.8 34.6 + - + +
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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