Contacts of the strand formed by residues 63 - 72 (chain B) in PDB entry 1K4R
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 ALA 63 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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60B CYS* 4.2 4.0 - - - -
62B HIS* 1.3 82.7 + - - +
64B LYS* 1.3 57.5 + - - +
65B LEU* 4.2 19.3 - - + -
119B ALA* 5.5 3.1 - - + -
120B ALA 3.4 11.4 - - - +
122B GLU* 4.3 2.3 - - - +
226B PRO* 5.8 1.8 - - + -
238B ALA* 5.6 1.8 - - + +
241B LEU* 3.7 32.4 - - + +
242B VAL* 5.0 1.8 - - + -
256B ASN* 2.8 32.2 + - - +
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Residues in contact with LYS 64 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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62B HIS 3.7 0.6 + - - -
63B ALA* 1.3 72.7 - - - +
65B LEU* 1.3 66.4 + - - +
66B SER* 4.2 5.5 + - - -
118B LYS 3.7 1.7 - - - +
119B ALA* 3.8 0.3 - - - -
120B ALA* 2.9 42.5 + - + +
121B CYS 4.1 9.2 - - - +
122B GLU* 3.7 38.9 + - - +
123B ALA 5.9 0.4 - - - +
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Residues in contact with LEU 65 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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63B ALA* 4.0 8.6 + - + -
64B LYS* 1.3 79.3 - - - +
66B SER* 1.3 65.1 + - - +
117B VAL* 4.4 11.7 - - + -
118B LYS 3.3 11.9 - - - +
119B ALA* 3.9 17.3 - - + -
242B VAL* 3.7 33.0 - - + -
254B VAL* 4.1 21.8 - - + -
256B ASN* 4.0 37.5 - - + +
208C HIS* 4.0 29.6 + - + +
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Residues in contact with SER 66 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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64B LYS* 5.4 7.0 + - - -
65B LEU* 1.3 77.9 - - - +
67B ASP* 1.3 77.1 + - - +
68B THR* 3.5 4.4 + - - -
117B VAL* 3.8 2.4 - - - +
118B LYS* 2.9 46.5 + - - +
208C HIS* 5.2 3.8 - - - -
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Residues in contact with ASP 67 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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66B SER* 1.3 81.7 + - - +
68B THR* 1.3 66.2 + - - +
69B LYS* 3.4 26.2 + - - +
84B GLU* 5.8 2.1 - - - +
116B CYS 3.8 4.2 - - - +
117B VAL* 4.4 1.9 - - - -
118B LYS* 3.0 39.4 + - + +
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Residues in contact with THR 68 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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66B SER 3.5 1.5 - - - -
67B ASP* 1.3 74.5 + - - +
69B LYS* 1.3 68.9 + - - +
70B VAL* 4.9 9.6 - - + -
115B ALA* 5.5 0.4 - - + -
116B CYS 3.4 8.1 - - - +
117B VAL* 3.3 16.2 - - + +
252B MET 5.0 3.1 - - - +
254B VAL* 3.7 29.6 - - + -
207C GLU* 5.3 2.3 + - - -
208C HIS* 3.5 19.2 - - + -
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Residues in contact with LYS 69 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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67B ASP* 3.5 21.8 - - - +
68B THR* 1.3 79.6 - - - +
70B VAL* 1.3 63.5 + - - +
82B LEU* 3.4 22.1 - - + +
84B GLU* 2.8 35.9 + - - +
115B ALA* 3.2 4.3 - - - +
116B CYS* 2.8 36.1 + - + +
118B LYS* 6.3 1.1 - - - -
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Residues in contact with VAL 70 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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68B THR* 4.9 7.2 - - + -
69B LYS* 1.3 81.8 - - - +
71B ALA* 1.3 66.7 + - - +
72B ALA* 4.9 0.4 - - + +
82B LEU* 4.4 4.4 - - - +
113B ILE* 3.9 22.0 - - + -
114B VAL 3.3 10.1 - - - +
115B ALA* 3.9 14.6 - - + -
250B VAL 3.5 25.1 - - - +
251B LYS* 4.5 2.2 - - + -
252B MET 4.3 17.5 - - - +
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Residues in contact with ALA 71 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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70B VAL* 1.3 76.8 - - - +
72B ALA* 1.3 62.0 + - - +
80B ALA* 3.3 9.3 - - + +
81B THR 3.7 23.6 - - - +
82B LEU* 3.8 15.5 - - + +
113B ILE* 3.3 2.8 - - - +
114B VAL* 2.9 38.0 + - + +
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Residues in contact with ALA 72 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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70B VAL* 5.1 0.2 - - + -
71B ALA* 1.3 75.6 - - - +
73B ARG* 1.3 69.5 + - - +
97B SER* 5.3 0.4 - - - +
99B ARG* 3.8 18.6 + - - +
112B SER 3.2 9.6 - - - +
113B ILE* 4.1 14.8 - - + -
249B ALA 4.6 1.1 - - - +
250B VAL* 4.1 25.8 - - + +
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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