Contacts of the strand formed by residues 67 - 74 (chain A) in PDB entry 3KDH
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 VAL 67 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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60A PRO* 4.7 4.0 - - + -
61A GLU* 2.8 54.9 - - + +
64A LYS* 4.1 23.9 + - + +
65A HIS 3.2 10.7 - - - +
66A PHE* 1.3 81.4 - - - +
68A LYS* 1.3 56.6 + - - +
69A ARG 3.8 23.6 - - - +
70A CYS* 4.7 4.9 - - + +
85A VAL* 3.9 22.0 - - + -
86A THR 3.7 2.5 - - - -
87A VAL* 4.7 2.9 - - + +
88A ILE* 5.4 1.3 - - - +
164B MET* 6.1 1.2 - - - +
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Residues in contact with LYS 68 (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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61A GLU* 3.6 9.7 - - - +
66A PHE 3.8 1.0 + - - -
67A VAL* 1.3 74.8 - - - +
69A ARG* 1.3 60.4 + - + +
86A THR* 2.7 36.4 + - + +
88A ILE* 3.9 20.9 - - + -
93A ALA* 4.2 10.2 - - + +
158B THR* 5.3 2.0 + - - +
161B ASP* 2.8 40.6 + - - +
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Residues in contact with ARG 69 (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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61A GLU* 4.9 2.7 - - - -
67A VAL* 3.7 7.5 - - - +
68A LYS* 1.3 83.5 - - + +
70A CYS* 1.3 69.5 + - - +
71A ARG* 4.0 45.1 - - + +
84A GLU 4.4 0.9 - - - +
85A VAL* 3.5 1.0 - - - -
86A THR* 2.7 46.2 + - - +
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Residues in contact with CYS 70 (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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58A ASP* 3.5 20.3 - - - +
59A ASN* 5.2 1.8 - - - +
60A PRO* 3.5 37.7 - - + -
61A GLU* 5.7 1.3 - - + +
67A VAL* 4.7 4.3 - - + -
69A ARG* 1.3 82.0 - - - +
71A ARG* 1.3 68.3 + - - +
83A ARG* 3.8 25.8 - - - -
84A GLU 3.3 12.3 - - - -
85A VAL* 3.9 4.3 - - + -
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Residues in contact with ARG 71 (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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58A ASP* 5.1 3.6 - - - -
69A ARG* 4.0 43.9 - - + +
70A CYS* 1.3 78.2 - - - +
72A LEU* 1.3 69.1 + - - +
73A ILE* 3.6 8.8 + - + +
83A ARG* 3.3 4.4 - - - -
84A GLU* 2.8 59.3 + - + +
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Residues in contact with LEU 72 (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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57A PHE* 4.0 17.9 - - + -
58A ASP* 3.8 31.0 - - + +
71A ARG* 1.3 78.6 - - - +
73A ILE* 1.3 62.1 + - - +
74A SER 4.2 1.1 - - - +
75A GLY 3.6 18.2 - - - +
76A ASP* 3.6 9.9 - - - +
77A GLY* 3.5 32.1 - - - +
81A SER* 4.4 3.1 - - - +
82A VAL 3.4 9.0 - - - +
83A ARG* 3.8 21.3 - - + -
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Residues in contact with ILE 73 (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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71A ARG* 3.6 14.0 + - + +
72A LEU* 1.3 75.8 - - - +
74A SER* 1.3 64.8 + - - +
82A VAL* 2.8 37.5 + - + +
84A GLU* 3.6 49.6 - - + +
97A THR* 4.2 7.4 - - + -
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Residues in contact with SER 74 (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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72A LEU* 3.5 3.4 - - - +
73A ILE* 1.3 82.2 - - - +
75A GLY* 1.3 68.3 + - - +
80A GLY 4.9 3.3 + - - -
81A SER* 3.3 4.0 - - - -
82A VAL* 2.9 45.6 + - - +
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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