Contacts of the helix formed by residues 98 - 103 (chain A) in PDB entry 1GZD
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 LEU 98 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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83A MET 3.2 27.6 - - - +
84A PHE 4.2 1.8 - - - +
86A GLY* 4.0 13.9 - - - -
96A ALA* 4.2 4.7 - - + -
97A VAL* 1.3 82.3 - - - +
99A HIS* 1.3 65.8 + - - +
100A VAL* 2.9 14.4 - - + +
101A ALA* 2.9 13.3 + - + +
102A LEU* 3.8 1.2 + - - +
110A ILE* 4.1 22.2 - - + -
112A VAL* 3.4 32.5 - - + -
117A VAL* 4.5 9.9 - - + -
268A TRP* 3.2 47.5 + - + -
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Residues in contact with HIS 99 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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83A MET* 4.2 15.7 - - - +
97A VAL* 3.5 29.4 - - + +
98A LEU* 1.3 75.5 + - - +
100A VAL* 1.3 75.2 + - + +
102A LEU* 3.1 31.1 + - + +
103A ARG* 3.4 36.4 + - - +
268A TRP 4.3 3.4 + - - -
269A VAL* 5.4 2.4 - - + +
270A GLY 5.5 2.4 + - - +
273A TYR* 3.6 58.8 - + + +
494A GLU* 3.9 14.5 + - + +
495A HIS* 4.8 3.6 + + - -
498A PHE* 6.4 0.6 - - - +
509A PHE* 4.0 9.6 - + - -
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Residues in contact with VAL 100 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
83A MET* 4.3 9.9 - - + +
84A PHE* 3.8 37.5 - - + -
98A LEU* 2.9 22.7 - - + -
99A HIS* 1.3 85.5 - - + +
101A ALA* 1.3 62.8 + - - +
103A ARG* 3.5 10.9 - - - +
104A ASN* 3.4 18.7 + - - +
110A ILE* 4.8 6.2 - - + +
300A HIS* 5.2 0.3 + - - -
303A ASP* 3.6 31.7 - - - +
495A HIS* 4.0 18.6 - - + -
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Residues in contact with ALA 101 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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98A LEU* 2.9 20.8 + - + +
100A VAL* 1.3 81.7 - - - +
102A LEU* 1.3 63.4 + - - +
104A ASN* 3.2 21.7 + - - +
110A ILE* 3.9 14.8 - - + -
117A VAL* 3.8 29.2 - - + -
118A MET* 3.5 15.6 - - - +
121A VAL* 3.7 4.3 - - + +
268A TRP* 4.4 7.0 - - + -
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Residues in contact with LEU 102 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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98A LEU 4.1 5.4 - - - +
99A HIS* 3.1 28.1 + - - +
101A ALA* 1.3 77.6 - - - +
103A ARG* 1.3 55.7 + - - +
104A ASN 3.5 0.4 + - - -
105A ARG* 5.7 0.3 + - - -
121A VAL* 3.7 19.3 - - + +
125A LEU* 4.2 12.1 - - - +
266A TRP* 3.9 24.9 - - + -
268A TRP* 4.2 5.2 - - + -
269A VAL* 4.0 24.0 - - + -
273A TYR 4.1 4.3 - - - +
276A TRP* 3.8 33.7 - - + +
277A SER* 3.8 31.4 - - - +
296A LEU* 4.3 7.4 - - - +
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Residues in contact with ARG 103 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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99A HIS* 3.4 30.5 + - - +
100A VAL* 3.5 18.0 - - - +
102A LEU* 1.3 72.6 - - + +
104A ASN* 1.3 61.1 + - - +
105A ARG* 2.8 15.6 + - - +
276A TRP* 2.9 34.9 - - + +
296A LEU* 3.3 37.7 - - + +
299A ALA* 3.4 20.6 - - + +
300A HIS* 3.0 20.7 + - - +
303A ASP* 2.9 38.2 + - - +
491A ALA* 3.7 9.3 - - - +
494A GLU* 2.7 28.5 + - - -
495A HIS* 4.2 2.4 + - - -
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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