Contacts of the helix formed by residues 401 - 406 (chain C) in PDB entry 6E7P
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 VAL 401 (chain C).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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434B VAL* 4.0 16.4 - - + -
73C ILE* 3.9 30.3 - - + -
398C TRP* 3.3 33.7 - - + +
399C VAL 3.1 0.6 - - - -
400C GLY* 1.3 77.1 - - - +
402C ILE* 1.3 57.4 + - - +
404C TYR* 2.9 39.2 + - + +
405C LEU* 3.4 21.9 - - + +
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Residues in contact with ILE 402 (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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431B CYS* 4.7 6.7 - - + +
434B VAL* 4.4 14.6 - - + -
435B ILE* 3.7 36.1 - - + -
354C TRP* 4.4 11.9 - - + -
399C VAL* 3.3 25.6 - - + +
400C GLY 3.2 0.6 - - - -
401C VAL* 1.3 77.4 - - - +
403C ARG* 1.3 60.5 + - - +
405C LEU* 3.0 24.8 + - + +
406C THR* 3.1 14.2 + - + +
415C ILE* 3.8 39.0 - - + -
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Residues in contact with ARG 403 (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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52C PRO* 5.7 2.6 - - - +
55C LYS* 5.6 1.6 - - - +
66C LEU* 5.2 11.2 - - - +
352C ASN* 6.3 0.4 - - - -
354C TRP* 3.9 54.2 - - + +
355C TYR* 3.3 48.9 + - - -
358C LEU* 4.6 11.5 - - - +
400C GLY 3.4 14.6 + - - +
402C ILE* 1.3 78.8 - - - +
404C TYR* 1.3 71.7 + - + +
406C THR* 2.5 26.7 + - - +
407C PHE* 3.7 32.1 + - + -
801C HZ7 4.9 3.6 + - - -
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Residues in contact with TYR 404 (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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66C LEU* 3.8 37.1 + - + +
69C GLN* 3.3 34.8 - - + +
70C VAL* 4.1 19.6 - - + +
73C ILE* 6.0 4.3 - - + -
400C GLY 4.7 8.1 - - - -
401C VAL* 2.9 28.8 + - + +
403C ARG* 1.3 95.8 - - + +
405C LEU* 1.3 63.7 + - + +
407C PHE* 3.6 35.6 + + + +
408C PHE* 4.6 10.4 + - - -
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Residues in contact with LEU 405 (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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430B CYS* 4.5 16.2 - - + +
431B CYS* 3.7 32.3 - - - -
434B VAL* 5.2 6.3 - - + -
401C VAL* 3.4 32.3 - - + +
402C ILE* 3.0 17.7 + - + +
404C TYR* 1.3 79.9 - - + +
406C THR* 1.3 60.9 + - + +
407C PHE 3.1 3.2 + - - -
408C PHE* 3.3 13.4 + - - +
411C TYR* 3.3 55.5 - - + +
415C ILE* 5.8 0.9 - - + -
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Residues in contact with THR 406 (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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354C TRP* 5.3 8.2 + - + +
402C ILE* 3.1 15.2 + - + +
403C ARG* 2.5 27.8 + - - +
405C LEU* 1.3 75.8 - - - +
407C PHE* 1.3 68.3 + - - +
408C PHE 3.2 8.9 + - - +
412C ASN* 4.1 30.1 + - - +
415C ILE* 4.1 33.0 - - + -
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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