Contacts of the helix formed by residues 946 - 952 (chain A) in PDB entry 6FF7
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 946 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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943A ALA 4.8 3.2 + - - -
945A THR* 1.4 80.6 - - - +
947A PRO* 1.3 64.3 - - - +
948A PRO* 3.7 4.0 - - + -
949A PRO* 3.4 22.4 - - + +
950A LEU* 3.5 5.7 + - - +
1416A ILE* 5.7 11.0 - - + +
1455A TRP 5.9 2.9 - - - -
1461A ASP* 6.3 0.9 - - + -
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Residues in contact with PRO 947 (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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942A PRO* 6.0 6.5 - - + -
946A GLU* 1.3 70.2 - - - +
948A PRO* 1.3 60.7 - - - +
949A PRO 3.3 1.6 - - - -
950A LEU* 3.0 14.2 + - + +
951A LEU* 2.9 25.2 + - - +
1190A CYS* 5.2 15.2 - - + +
1455A TRP* 5.5 12.7 - - + -
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Residues in contact with PRO 948 (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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946A GLU* 3.7 2.1 - - + -
947A PRO* 1.3 72.9 - - - +
949A PRO* 1.3 59.8 - - - +
951A LEU* 3.5 11.6 - - + +
952A VAL* 2.9 26.2 + - - +
953A TYR* 3.4 6.4 + - - +
1375A TRP* 6.1 4.9 - - + -
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Residues in contact with PRO 949 (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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945A THR* 5.0 8.1 - - - -
946A GLU* 3.4 24.7 - - + +
947A PRO 3.3 0.2 - - - -
948A PRO* 1.3 76.8 - - - +
950A LEU* 1.3 62.4 + - - +
951A LEU 3.3 0.7 + - - -
953A TYR* 3.7 14.0 + - + +
954A LYS* 2.8 38.4 + - + +
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Residues in contact with LEU 950 (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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941A LYS* 5.8 8.3 - - + -
942A PRO* 6.6 0.2 - - + -
946A GLU 3.5 3.6 + - - +
947A PRO* 3.0 23.7 + - + +
949A PRO* 1.3 77.7 - - - +
951A LEU* 1.3 57.7 + - - +
954A LYS* 5.1 2.7 - - - -
955A TRP* 3.3 17.2 - - - +
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Residues in contact with LEU 951 (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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947A PRO 2.9 13.7 + - - +
948A PRO* 3.2 10.7 + - + +
949A PRO 3.1 0.6 - - - -
950A LEU* 1.3 79.9 - - - +
952A VAL* 1.3 63.0 + - + +
955A TRP* 3.3 13.0 - - - +
956A CYS* 4.1 3.1 + - - +
1189A MET* 4.7 23.4 - - + +
1190A CYS* 5.3 7.6 - - + -
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Residues in contact with VAL 952 (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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948A PRO 2.9 9.6 + - - +
951A LEU* 1.3 81.5 - - + +
953A TYR* 1.3 58.4 + - + +
954A LYS 3.2 4.5 - - - -
955A TRP 3.1 1.6 + - - -
956A CYS* 2.7 37.4 + - + +
957A GLN* 2.8 12.1 + - - +
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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