Contacts of the helix formed by residues 656 - 665 (chain S) in PDB entry 1NVU
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 THR 656 (chain S).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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654S GLU 4.3 6.3 - - - +
655S PRO* 1.3 77.9 - - + +
657S GLU* 1.3 61.3 + - - +
658S ALA* 3.5 14.5 + - - +
659S ASP* 3.0 23.5 + - - +
660S ARG* 2.8 28.7 + - - +
673S GLU* 4.1 30.3 - - + +
674S LEU 5.6 1.6 - - - +
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Residues in contact with GLU 657 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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656S THR* 1.3 73.7 - - - +
658S ALA* 1.3 63.6 + - - +
660S ARG* 3.2 22.8 + - - +
661S ILE* 3.0 44.2 + - + +
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Residues in contact with ALA 658 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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656S THR* 3.2 9.4 + - - +
657S GLU* 1.3 79.5 - - - +
659S ASP* 1.3 66.8 + - - +
661S ILE* 3.5 9.7 + - - +
662S ALA* 3.2 20.3 + - - +
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Residues in contact with ASP 659 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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655S PRO* 3.7 17.8 - - + +
656S THR* 3.0 34.9 + - - +
658S ALA* 1.3 76.2 - - - +
660S ARG* 1.3 56.1 + - - +
662S ALA* 3.1 3.6 + - - +
663S ILE* 2.8 40.3 + - - +
669S PRO* 3.6 18.7 - - + +
670S LEU* 3.8 4.2 + - - +
671S SER* 3.0 40.5 + - - -
672S ALA 4.5 1.3 + - - -
673S GLU 5.6 0.2 + - - -
674S LEU* 5.6 2.8 + - - +
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Residues in contact with ARG 660 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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654S GLU* 5.9 3.0 - - - +
655S PRO* 4.0 26.8 + - + +
656S THR 2.8 17.9 + - - +
657S GLU* 3.6 29.0 + - - +
659S ASP* 1.3 74.6 - - - +
661S ILE* 1.3 59.5 + - + +
663S ILE* 3.7 8.4 - - + +
664S GLU* 2.8 57.3 + - - +
1049S PO4 2.9 45.6 + - - -
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Residues in contact with ILE 661 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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657S GLU* 3.0 37.3 + - + +
658S ALA* 3.5 10.1 - - - +
660S ARG* 1.3 78.7 - - + +
662S ALA* 1.3 63.8 + - - +
664S GLU* 3.3 9.3 + - - +
665S ASN* 3.1 42.4 + - - +
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Residues in contact with ALA 662 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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658S ALA 3.2 9.7 + - - +
659S ASP 3.1 7.9 + - - +
661S ILE* 1.3 80.8 - - - +
663S ILE* 1.3 63.4 + - - +
665S ASN* 3.0 17.0 + - - +
667S ASP* 3.0 29.1 + - + +
668S GLN 4.1 8.5 - - - +
669S PRO* 3.9 22.7 - - + -
670S LEU 5.3 0.4 - - - +
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Residues in contact with ILE 663 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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655S PRO* 4.3 24.0 - - + -
659S ASP 2.8 24.5 + - - +
660S ARG* 3.7 6.5 - - + +
662S ALA* 1.3 71.6 - - - +
664S GLU* 1.3 62.4 + - + +
666S GLY* 3.1 18.2 + - - -
667S ASP 3.8 7.2 - - - +
669S PRO* 3.2 32.5 - - + -
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Residues in contact with GLU 664 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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660S ARG* 2.8 51.3 + - - +
661S ILE* 3.8 10.3 - - - +
662S ALA 3.2 0.2 - - - -
663S ILE* 1.3 79.4 - - + +
665S ASN* 1.3 60.8 + - - +
666S GLY 3.3 1.2 + - - -
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Residues in contact with ASN 665 (chain S).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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661S ILE* 3.1 34.2 + - - +
662S ALA* 3.0 10.3 + - - +
664S GLU* 1.3 80.3 - - - +
666S GLY* 1.3 61.1 + - - +
667S ASP* 3.3 19.5 + - - +
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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