Contacts of the helix formed by residues 96 - 100 (chain H) in PDB entry 4HHM
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 HIS 96 (chain H).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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28E ASP* 4.9 2.2 + - - -
292E ARG* 4.9 0.9 + - - -
362G VAL* 3.7 21.4 + - + +
363G ASP* 4.1 14.1 + - - -
366G ALA* 5.0 1.0 - - - +
56H ASP* 6.1 0.9 - - - +
61H PHE* 3.8 43.0 - + + -
92H ASN* 4.7 1.0 + - - -
94H PHE 3.7 2.3 - - - +
95H THR* 1.3 82.0 - - - +
97H PRO* 1.3 80.2 - - + +
98H VAL* 3.2 46.4 - - + -
99H PHE* 3.0 33.0 + - + +
100H LYS 4.1 0.3 + - - -
118H LYS* 6.1 0.4 - - - -
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Residues in contact with PRO 97 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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28E ASP* 4.3 14.6 - - + +
29E ALA 3.1 28.5 - - - +
30E THR* 4.0 20.0 - - + -
292E ARG* 4.4 3.4 - - - +
366G ALA* 3.7 19.0 - - + +
95H THR 3.8 4.9 - - - +
96H HIS* 1.3 99.1 - - + +
98H VAL* 1.3 55.5 + - - +
100H LYS* 2.9 34.9 + - - +
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Residues in contact with VAL 98 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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360G PHE* 4.0 19.1 - - + -
362G VAL* 3.8 12.3 - - + +
365G ALA* 3.9 27.6 - - + -
366G ALA* 3.5 10.7 - - - +
96H HIS* 3.1 29.0 + - + -
97H PRO* 1.3 77.7 - - - +
99H PHE* 1.3 85.3 + - + +
100H LYS* 3.3 5.0 + - - +
101H ASP 4.8 1.2 + - - -
102H GLY 4.3 0.5 - - - +
111H VAL* 3.4 25.9 - - + +
114H TYR* 4.3 8.7 - - + -
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Residues in contact with PHE 99 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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292E ARG* 4.9 0.2 - - - -
92H ASN 3.9 8.7 - - - -
93H LEU* 3.5 53.2 - - + +
94H PHE* 3.9 2.7 - - - -
96H HIS* 3.0 28.8 + - + +
98H VAL* 1.3 87.0 - - + +
100H LYS* 1.3 64.6 + - - +
101H ASP 3.0 3.6 - - - -
102H GLY 2.9 28.8 + - - +
103H ALA* 3.9 7.0 - - + -
111H VAL* 3.9 13.0 - - + -
114H TYR* 3.5 38.1 - + - -
115H ALA* 4.2 14.8 - - + -
118H LYS* 4.0 8.5 - - + -
140H ARG* 3.1 16.8 - - + +
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Residues in contact with LYS 100 (chain H).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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30E THR* 4.0 12.6 - - + -
292E ARG* 3.3 52.7 + - - +
293E THR* 3.3 39.4 - - + +
294E GLU 5.3 1.3 - - - -
365G ALA 3.9 3.2 + - - -
366G ALA* 2.8 30.6 + - - +
367G ALA 5.4 0.2 - - - -
368G ARG 2.8 30.5 + - - -
369G GLY* 4.4 0.9 - - - -
370G MET* 4.4 9.7 - - + -
96H HIS 4.1 0.4 + - - -
97H PRO 2.9 15.9 + - - +
98H VAL 3.3 3.9 + - - +
99H PHE* 1.3 76.9 - - - +
101H ASP* 1.3 61.7 + - + +
140H ARG* 4.5 1.7 + - - +
188H ARG* 3.7 14.7 + - - -
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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