Contacts of the strand formed by residues 78 - 83 (chain K) in PDB entry 1S7X
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 TYR 78 (chain K).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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9K VAL* 5.3 0.2 - - - -
23K LEU* 3.6 27.8 - - + -
40K LEU 3.2 16.2 - - - +
41K LYS* 3.4 46.0 + - + +
46K ILE* 4.0 14.4 - - + -
68K THR* 6.0 0.2 - - + -
70K PHE* 3.5 40.4 - + + +
71K THR 4.3 7.8 + - - -
72K PRO* 5.0 3.8 - - + -
73K THR 5.4 0.2 - - - -
76K ASP* 3.7 26.8 + - + +
77K THR* 1.3 78.8 - - - +
79K ALA* 1.3 57.5 + - - +
94K TYR* 3.6 6.0 - - - -
95K TRP* 2.8 55.7 + + + +
97K ARG* 6.2 0.2 - - - -
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Residues in contact with ALA 79 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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9K VAL* 5.0 5.0 - - - +
23K LEU* 5.5 1.4 - - - +
39K MET* 3.4 8.5 - - - +
40K LEU* 3.0 42.3 + - + +
78K TYR* 1.3 77.9 - - - +
80K CYS* 1.3 61.4 + - - +
92K THR* 3.5 28.3 - - + -
93K VAL 3.4 8.3 - - - +
94K TYR* 3.8 17.5 - - + -
95K TRP 4.6 0.4 - - - +
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Residues in contact with CYS 80 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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7K ILE* 4.6 2.0 - - + -
9K VAL* 3.5 16.8 - - + -
25K CYS* 2.0 51.8 - - + -
37K ILE* 3.5 23.1 - - - -
38K GLN 3.7 4.7 - - - -
39K MET* 4.5 4.0 - - + +
79K ALA* 1.3 76.6 - - - +
81K ARG* 1.3 58.7 + - - +
82K VAL* 3.9 8.7 + - - +
91K LYS 3.7 1.9 - - - +
92K THR* 3.4 4.6 - - - -
93K VAL* 3.0 29.5 + - - +
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Residues in contact with ARG 81 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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58A GLU* 5.1 5.3 + - - -
36K GLU 3.4 5.7 - - - +
37K ILE* 3.5 0.4 - - - -
38K GLN* 2.9 62.7 + - + +
40K LEU* 3.2 36.8 - - + +
43K GLY* 5.0 5.7 + - - -
79K ALA 4.2 0.2 - - - -
80K CYS* 1.3 71.8 - - - +
82K VAL* 1.3 61.7 + - - +
83K LYS* 5.5 0.6 - - + +
90K PRO* 3.9 28.4 - - + +
91K LYS 3.4 2.9 - - - -
92K THR* 3.7 25.0 + - - +
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Residues in contact with VAL 82 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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5K PRO* 3.8 21.5 - - + -
7K ILE* 3.4 34.8 - - + -
27K VAL* 4.5 8.5 - - + -
35K ILE* 3.6 31.4 - - + -
36K GLU 3.5 3.8 - - - +
37K ILE* 4.8 4.5 - - + -
80K CYS* 4.3 19.7 - - - +
81K ARG* 1.3 75.5 - - - +
83K LYS* 1.3 63.1 + - - +
84K HIS* 4.2 1.1 + - + -
87K MET* 4.8 3.7 - - - +
90K PRO* 3.4 5.0 - - - +
91K LYS* 2.9 33.2 + - + +
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Residues in contact with LYS 83 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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35K ILE* 3.4 6.1 - - - +
36K GLU* 2.8 63.3 + - + +
38K GLN* 6.2 2.0 - - - +
81K ARG* 5.5 0.7 - - + +
82K VAL* 1.3 71.6 - - - +
84K HIS* 1.3 63.9 + - - +
88K ALA 6.0 1.1 + - - -
89K GLU 5.7 0.7 - - - -
90K PRO* 4.1 31.9 - - + -
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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