Contacts of the helix formed by residues 672 - 677 (chain D) in PDB entry 1GGE
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 ILE 672 (chain D).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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608D ASN* 3.8 13.0 - - - +
667D VAL* 4.3 9.0 - - + -
668D PRO 3.5 24.5 - - - +
670D GLY 3.0 8.9 + - - +
671D ASN* 1.3 71.8 - - - +
673D ALA* 1.3 58.1 + - - +
675D ILE* 3.0 12.6 + - + +
676D ALA* 2.8 31.4 + - + -
700D ASP* 3.6 44.2 + - + +
701D ALA* 3.7 11.0 - - + +
703D LYS* 4.0 16.2 - - + -
704D PHE* 4.0 20.0 - - + -
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Residues in contact with ALA 673 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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671D ASN* 3.2 14.4 - - - +
672D ILE* 1.3 78.2 - - - +
674D ASP* 1.3 62.7 + - - +
675D ILE 3.3 0.5 + - - -
676D ALA* 3.6 17.7 + - - +
677D ASP* 4.6 3.6 + - - +
703D LYS* 5.7 2.2 - - - +
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Residues in contact with ASP 674 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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608D ASN* 3.5 2.7 - - + -
609D ASP* 2.8 39.3 + - - +
634D TYR* 2.6 34.2 + - - -
671D ASN* 3.1 22.9 + - - +
672D ILE 3.1 0.4 + - - -
673D ALA* 1.3 79.5 - - - +
675D ILE* 1.3 61.8 + - - +
677D ASP 5.2 0.9 + - - -
678D ASN* 5.0 3.3 + - - +
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Residues in contact with ILE 675 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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606D LEU* 4.5 15.3 - - + +
607D LEU 3.5 29.4 - - - +
608D ASN* 4.2 12.8 - - + -
634D TYR* 4.1 9.0 - - + -
635D SER* 5.5 1.1 - - - +
654D PHE* 4.1 14.1 - - + -
667D VAL* 4.6 7.0 - - + -
672D ILE* 3.6 13.0 - - + +
674D ASP* 1.3 89.7 - - - +
676D ALA* 1.3 64.6 + - - +
677D ASP 3.2 2.7 - - - -
678D ASN* 2.9 26.1 + - + +
681D ALA* 3.8 18.2 - - + +
682D ASN* 4.0 0.3 + - - -
704D PHE* 3.9 26.6 - - + -
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Residues in contact with ALA 676 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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672D ILE* 2.8 23.8 + - + +
673D ALA* 3.6 14.8 + - - +
674D ASP 3.6 0.8 - - - -
675D ILE* 1.3 78.6 - - - +
677D ASP* 1.3 69.4 + - - +
678D ASN 3.4 0.4 - - - -
682D ASN* 3.0 19.4 + - - +
703D LYS* 5.8 5.6 - - + -
704D PHE* 4.1 13.3 - - + -
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Residues in contact with ASP 677 (chain D).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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749A ASP 4.3 0.5 - - - +
750A LYS* 3.9 30.4 - - + +
673D ALA 4.6 4.0 + - - +
674D ASP 5.2 0.4 + - - -
675D ILE 3.2 0.6 - - - -
676D ALA* 1.3 88.7 - - - +
678D ASN* 1.3 62.5 + - - +
679D GLY* 3.4 3.9 + - - -
682D ASN* 4.1 2.2 - - - +
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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