Contacts of the helix formed by residues 91 - 98 (chain M) in PDB entry 5GAG
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 ASP 91 (chain M).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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89M VAL* 3.6 23.5 - - - +
90M VAL* 1.3 81.9 - - - +
92M LEU* 1.3 66.5 + - - +
93M ASN* 3.3 11.7 + - + +
94M THR* 2.9 22.8 + - - +
95M LEU* 3.2 25.6 + - - +
123M ARG* 3.7 31.7 + - - +
125M LEU* 4.0 6.7 - - - -
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Residues in contact with LEU 92 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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91M ASP* 1.3 73.5 - - - +
93M ASN* 1.3 70.0 + - - +
95M LEU* 4.0 2.8 - - - +
96M LYS* 3.0 41.1 + - - +
101M ILE* 4.6 8.6 - - + +
105M ILE* 3.9 9.0 - - + +
106M GLU* 3.2 41.5 - - - +
107M PHE* 4.0 1.6 - - - +
108M ALA* 4.5 13.7 - - + +
123M ARG 4.9 0.2 + - - -
124M GLY 4.1 7.9 - - - +
125M LEU* 3.6 31.4 - - + +
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Residues in contact with ASN 93 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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91M ASP* 4.0 7.5 - - + +
92M LEU* 1.3 80.5 - - - +
94M THR* 1.3 60.0 + - - +
96M LYS* 3.3 12.2 + - - +
97M ALA* 2.9 31.9 + - - +
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Residues in contact with THR 94 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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85M VAL* 3.8 14.5 - - + +
86M GLU 3.8 22.0 - - - +
89M VAL* 3.4 23.9 + - + +
90M VAL* 4.5 1.1 - - - -
91M ASP* 2.9 34.5 + - - -
92M LEU 3.3 0.8 - - - -
93M ASN* 1.3 77.3 - - - +
95M LEU* 1.3 61.1 + - - +
97M ALA* 3.9 7.3 - - + +
98M ALA* 3.4 20.8 + - - +
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Residues in contact with LEU 95 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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77M ILE* 3.7 40.2 - - + -
82M LEU* 5.0 3.8 - - + -
85M VAL* 3.7 23.6 - - + -
90M VAL* 3.7 24.7 - - + -
91M ASP 3.2 14.8 + - - +
92M LEU* 4.1 0.4 - - - +
94M THR* 1.3 76.3 - - - +
96M LYS* 1.3 63.2 + - - +
97M ALA 3.2 1.3 - - - -
98M ALA* 3.1 2.7 + - - +
99M ASN 3.1 4.3 + - - -
100M ILE* 2.9 41.0 + - + -
101M ILE* 3.5 24.0 - - + -
125M LEU* 4.2 16.4 - - + -
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Residues in contact with LYS 96 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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92M LEU* 3.0 35.2 + - - +
93M ASN* 3.8 10.6 + - - +
95M LEU* 1.3 76.1 - - - +
97M ALA* 1.3 61.0 + - - +
99M ASN* 3.2 13.7 + - - +
101M ILE* 3.9 17.4 - - + +
102M GLY 3.7 18.4 - - - +
103M ILE* 3.1 49.4 + - + +
104M GLN 4.9 0.2 - - - -
105M ILE* 3.1 28.7 + - - +
106M GLU* 5.9 0.6 - - - +
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Residues in contact with ALA 97 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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93M ASN 2.9 17.5 + - - +
94M THR* 3.9 9.4 - - + +
96M LYS* 1.3 78.9 - - - +
98M ALA* 1.3 56.6 + - - +
99M ASN* 3.2 3.6 + - - +
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Residues in contact with ALA 98 (chain M).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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84M LYS* 4.0 15.3 - - + +
85M VAL* 3.9 21.8 - - + -
94M THR 3.4 13.8 + - - +
95M LEU 3.1 5.6 + - - +
97M ALA* 1.3 77.9 - - - +
99M ASN* 1.3 68.7 + - - +
100M ILE* 3.2 11.7 + - + +
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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