Contacts of the helix formed by residues 914 - 918 (chain A) in PDB entry 5AMN
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 PRO 914 (chain A).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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874A ASP* 4.1 4.0 - - - +
878A ARG* 2.9 35.0 - - - +
912A ARG 4.0 6.1 - - - +
913A ILE* 1.3 88.6 - - + +
915A VAL* 1.3 66.3 + - - +
916A LYS 3.3 0.7 - - - +
917A TRP* 3.2 38.0 + - + +
918A MET* 3.6 10.4 + - - +
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Residues in contact with VAL 915 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
913A ILE 3.3 5.4 + - - +
914A PRO* 1.3 69.9 - - - +
916A LYS* 1.3 60.3 + - - +
917A TRP 3.1 5.1 + - - -
918A MET* 3.3 20.7 + - - +
923A LEU* 4.1 29.3 - - + +
957A PRO* 3.5 43.1 - - + +
958A GLU* 6.3 0.2 - - - -
960A LEU* 3.9 18.7 - - + +
961A PHE* 5.5 7.0 - - + -
964A LEU* 5.9 1.2 - - - +
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Residues in contact with LYS 916 (chain A).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
914A PRO* 3.2 2.0 + - - +
915A VAL* 1.3 78.8 - - + +
917A TRP* 1.3 76.5 + - + +
918A MET 3.7 1.1 - - - +
935A TRP* 5.4 1.2 + - - -
939A VAL* 4.0 13.5 - - - +
950A ASN* 6.0 1.0 - - - +
951A PRO* 3.3 24.9 + - + +
952A TYR* 3.1 55.7 + - + -
953A PRO* 5.0 0.2 - - - +
954A GLY 4.8 2.6 - - - +
955A ILE 2.6 30.3 + - - +
957A PRO* 4.1 22.5 - - + +
960A LEU* 4.1 15.0 - - + -
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Residues in contact with TRP 917 (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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813A ARG* 5.2 4.9 - - - -
874A ASP* 5.8 0.2 - - - +
875A LEU 3.4 22.9 - - - +
876A ALA* 3.5 5.5 - - + +
878A ARG* 3.3 30.1 - - - +
913A ILE* 5.1 5.6 - - + -
914A PRO* 3.2 29.5 + - + +
915A VAL 3.1 0.8 - - - -
916A LYS* 1.3 100.5 - - + +
918A MET* 1.3 60.2 + - - +
935A TRP* 3.7 11.3 - - - -
936A SER* 2.7 34.1 + - - +
939A VAL* 3.8 20.9 - - + +
943A GLU* 3.0 36.3 + - - -
950A ASN* 6.0 0.2 - - - -
951A PRO* 3.4 31.9 - - + -
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Residues in contact with MET 918 (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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873A ARG 5.7 0.2 - - - +
911A GLY* 5.8 4.7 - - - +
913A ILE* 3.8 38.6 - - + +
914A PRO 3.6 12.3 - - - +
915A VAL* 3.3 13.5 + - - +
916A LYS 5.0 0.9 - - - -
917A TRP* 1.3 80.1 + - - +
919A ALA* 1.3 66.8 + - - +
922A SER* 3.3 34.8 - - - +
923A LEU* 3.6 19.7 - - + +
928A TYR* 3.0 33.2 - - + +
935A TRP* 3.2 13.8 + - - -
936A SER* 4.6 2.0 - - - -
964A LEU* 4.8 6.8 - - - +
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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
------------------------------------------------------------
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