Contacts of the helix formed by residues 54 - 65 (chain V) in PDB entry 5IJO
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 SER 54 (chain V).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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52V PRO 3.5 5.1 + - - -
53V PRO* 1.3 75.9 - - - +
55V PRO* 1.3 62.2 - - - +
56V SER* 3.1 13.5 - - - -
57V SER* 3.1 13.7 + - - -
58V ALA* 2.8 26.6 + - - +
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Residues in contact with PRO 55 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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54V SER* 1.3 72.3 - - - +
56V SER* 1.3 59.2 + - - +
58V ALA* 3.6 9.2 - - + +
59V GLU* 2.9 28.4 + - - +
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Residues in contact with SER 56 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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54V SER* 3.1 8.8 - - - -
55V PRO* 1.3 77.6 - - - +
57V SER* 1.3 58.8 + - - +
59V GLU* 3.3 7.0 + - - +
60V LYS* 3.0 26.3 + - - +
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Residues in contact with SER 57 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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52V PRO 5.2 0.2 - - - -
54V SER* 3.1 24.9 + - - -
56V SER* 1.3 78.1 - - - +
58V ALA* 1.3 58.5 + - - +
60V LYS* 3.1 8.0 + - - +
61V VAL* 2.8 29.9 + - - +
85V ASP* 3.8 23.1 - - - -
86V GLU* 4.7 5.8 - - - -
87V GLU* 4.6 10.0 + - - +
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Residues in contact with ALA 58 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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54V SER 2.8 14.8 + - - +
55V PRO* 3.6 12.6 - - + +
56V SER 3.3 0.2 - - - -
57V SER* 1.3 75.6 - - - +
59V GLU* 1.3 63.8 + - - +
61V VAL* 3.1 9.0 + - - +
62V LYS* 3.0 21.8 + - - +
86V GLU* 4.9 7.0 - - + -
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Residues in contact with GLU 59 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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55V PRO 2.9 14.1 + - - +
56V SER* 3.5 10.1 - - - +
58V ALA* 1.3 77.2 - - - +
60V LYS* 1.3 63.2 + - - +
62V LYS* 3.1 8.4 + - - +
63V ALA* 2.9 22.6 + - - +
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Residues in contact with LYS 60 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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56V SER 3.0 13.5 + - - +
57V SER* 3.5 10.8 - - - +
59V GLU* 1.3 75.6 - - - +
61V VAL* 1.3 53.8 + - - +
63V ALA* 3.2 6.5 + - - +
64V ASN* 2.6 40.0 + - + +
87V GLU* 5.1 9.2 - - + -
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Residues in contact with VAL 61 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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57V SER 2.8 13.5 + - - +
58V ALA* 3.1 9.8 + - - +
60V LYS* 1.3 77.6 - - - +
62V LYS* 1.3 62.6 + - - +
64V ASN* 3.6 5.6 - - - +
65V LYS* 2.9 25.8 + - - +
86V GLU* 3.9 25.4 - - + -
87V GLU* 4.4 11.2 - - - +
90V VAL* 6.2 1.8 - - + -
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Residues in contact with LYS 62 (chain V).
Click here for Legend to table.
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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58V ALA 3.0 12.4 + - - +
59V GLU* 3.1 9.2 + - - +
61V VAL* 1.3 77.6 - - - +
63V ALA* 1.3 60.7 + - - +
65V LYS 2.5 26.3 - - - +
66V ASP* 4.0 4.0 + - - +
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Residues in contact with ALA 63 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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59V GLU 2.9 12.7 + - - +
60V LYS* 3.7 9.0 - - - +
62V LYS* 1.3 77.8 - - - +
64V ASN* 1.3 67.9 + - - +
65V LYS 4.2 2.1 - - - -
66V ASP* 4.5 6.1 + - - +
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Residues in contact with ASN 64 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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60V LYS* 2.6 23.6 + - + +
61V VAL* 3.6 6.1 - - - +
63V ALA* 1.3 76.5 - - - +
65V LYS* 1.3 60.2 + - + +
66V ASP 3.9 1.2 + - - -
67V VAL* 6.0 0.3 - - - +
87V GLU* 6.2 2.9 - - + -
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Residues in contact with LYS 65 (chain V).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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61V VAL 2.9 12.2 + - - +
62V LYS* 2.5 24.3 - - - +
64V ASN* 1.3 78.8 - - + +
66V ASP* 1.3 57.3 + - - +
67V VAL* 4.1 7.2 - - + +
68V ALA 5.0 11.2 - - - +
72V LYS* 6.2 3.6 - - + -
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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