Contacts of the strand formed by residues 54 - 58 (chain A) in PDB entry 1P9B
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 54 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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29A LYS* 3.5 9.2 - - + -
30A GLY* 3.8 5.1 + - - -
45A ARG* 4.6 6.9 + - - -
52A ALA* 3.8 7.0 - - + +
53A GLY* 1.3 77.3 - - - -
55A THR* 1.3 62.2 + - - +
56A ILE 3.8 0.5 + - - -
63A TYR 3.7 1.2 - - - +
64A ALA* 3.5 2.2 - - - -
65A LEU* 2.8 40.9 + - + +
70A CYS* 3.6 23.2 - - - -
229A GLU* 2.6 26.9 + - + +
230A GLY 3.0 26.5 - - - -
231A ALA* 4.0 6.5 - - + -
307A THR* 4.2 0.4 - - - +
1601A IMO 2.5 26.3 + - - -
1603A GDP 3.0 33.4 - - - +
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Residues in contact with THR 55 (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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30A GLY* 4.0 0.3 - - - -
31A LYS* 3.5 25.3 + - - +
54A HIS* 1.3 71.2 - - - +
56A ILE* 1.3 68.5 + - - +
57A SER 4.4 0.2 + - - -
62A LYS* 3.6 27.6 - - + -
63A TYR 3.4 7.6 - - - +
64A ALA* 4.4 2.8 - - + +
307A THR* 3.3 24.1 + - - +
428A PRO 5.5 0.2 - - - +
1603A GDP 2.9 57.1 + - - +
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Residues in contact with ILE 56 (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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30A GLY 4.0 10.3 - - - +
31A LYS* 5.1 2.7 - - - +
34A ASP* 3.5 28.0 - - + +
55A THR* 1.3 77.4 - - - +
57A SER* 1.3 63.7 + - - +
58A VAL* 4.2 5.4 - - + -
61A LYS 3.8 0.8 - - - +
62A LYS* 3.2 5.2 - - - +
63A TYR* 2.7 45.2 + - + +
65A LEU* 3.9 14.1 - - + -
70A CYS* 3.6 51.4 - - + +
72A VAL* 4.8 1.1 - - + -
73A LEU* 3.5 30.5 - - + -
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Residues in contact with SER 57 (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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31A LYS* 5.9 1.0 - - - +
56A ILE* 1.3 79.0 - - - +
58A VAL* 1.3 64.7 + - - +
60A ASP* 3.6 10.2 - - - -
61A LYS 3.5 3.8 - - - -
62A LYS* 3.6 28.4 - - - +
428A PRO* 3.2 27.4 + - - +
429A ASN* 2.7 22.0 + - - -
430A ARG* 2.8 29.1 + - - +
1603A GDP 4.8 0.9 - - - -
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Residues in contact with VAL 58 (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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56A ILE* 4.2 4.9 - - + -
57A SER* 1.3 79.5 + - - +
59A ASN* 1.3 72.3 + - + +
61A LYS* 2.7 61.5 + - + +
63A TYR* 5.0 1.1 - - + -
73A LEU* 4.0 17.5 - - + -
429A ASN* 4.7 0.2 - - - -
430A ARG* 3.6 47.8 - - + +
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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