Contacts of the strand formed by residues 75 - 80 (chain A) in PDB entry 1PG6
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 75 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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30A TYR* 3.8 28.3 - - + -
31A LEU 3.4 9.4 - - - +
47A THR* 5.6 0.2 - - - -
48A LYS* 2.7 31.9 + - - +
72A SER* 3.5 20.0 + - - +
73A MSE 3.3 2.9 - - - +
74A PHE* 1.3 87.1 - - + +
76A THR* 1.3 73.0 + - - +
113A PHE* 3.9 19.5 - - + -
122A TYR* 3.6 27.8 - - + +
143A MSE 3.5 33.2 - - + -
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Residues in contact with THR 76 (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 TYR* 3.3 5.5 - - - -
31A LEU* 2.7 56.7 + - - +
33A GLN* 4.4 25.3 - - + -
34A GLY 5.1 1.0 + - - +
45A LEU* 3.5 14.5 - - + +
46A ASN 3.7 9.2 - - - -
47A THR* 3.5 27.4 - - + +
48A LYS* 5.6 0.4 - - - -
73A MSE 5.5 2.5 - - - +
75A ILE* 1.3 81.2 - - - +
77A GLN* 1.3 61.2 + - - +
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Residues in contact with GLN 77 (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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28A SER* 3.7 19.1 + - - -
29A VAL 3.3 10.3 - - - +
30A TYR* 3.1 51.1 + - + +
31A LEU* 4.2 0.2 - - - -
45A LEU* 3.7 3.7 - - - -
46A ASN* 2.8 45.5 + - + +
76A THR* 1.3 76.0 - - - +
78A ALA* 1.3 63.0 + - - +
79A MSE 3.5 27.9 - - + +
118A GLY* 4.1 2.6 + - - -
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Residues in contact with ALA 78 (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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23A LEU* 4.1 3.8 - - + +
27A GLY 4.0 0.2 - - - +
28A SER* 3.1 7.8 - - - -
29A VAL* 2.9 33.7 + - + -
31A LEU* 3.7 18.8 - - + +
36A MSE 4.4 6.3 - - + -
43A VAL* 4.2 11.4 - - + -
44A THR 3.3 9.0 - - - +
45A LEU* 4.5 2.0 - - + +
77A GLN* 1.3 73.0 - - - +
79A MSE 1.3 62.1 + - - +
86A LEU* 4.0 20.4 - - + -
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Residues in contact with MSE 79 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
23A LEU* 4.7 0.4 - - - -
26A GLY 6.0 1.6 - - - +
27A GLY 3.7 3.4 - - - +
28A SER* 4.1 10.8 - - - -
42A ASN 3.8 0.7 - - - +
43A VAL* 3.3 6.2 - - - +
44A THR* 2.8 51.8 + - + +
46A ASN* 3.4 37.2 - - + +
77A GLN* 3.5 35.7 - - + +
78A ALA* 1.3 80.8 - - - +
80A SER* 1.3 62.2 + - - +
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Residues in contact with SER 80 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
23A LEU* 3.6 29.2 - - - -
24A GLU 3.8 5.8 - - - -
25A HIS* 4.8 0.3 - - - -
26A GLY* 3.0 28.4 + - - -
27A GLY 3.0 8.7 + - - -
42A ASN* 3.6 4.3 + - - -
43A VAL* 4.2 5.7 - - - +
79A MSE 1.3 75.8 - - - +
81A ASN* 1.3 59.2 + - - +
82A GLY 2.7 25.4 + - - -
84A GLY* 3.3 19.1 + - - -
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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