Contacts of the helix formed by residues 1016 - 1022 (chain O) in PDB entry 5X0X
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 SER1016 (chain O).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1014O LYS 3.4 5.2 + - - -
1015O MET* 1.3 71.8 - - - +
1017O ALA* 1.3 55.2 + - - +
1018O LEU 4.4 2.2 - - - -
1019O GLN* 2.8 30.4 + - - +
1020O GLN* 2.7 33.3 + - - +
1059O CYS* 4.7 1.7 - - - -
1085O VAL* 2.3 36.3 + - - +
1086O ALA* 5.1 0.2 - - - -
1316O ARG* 3.5 24.5 - - - -
1317O LEU* 3.9 9.6 - - - -
1318O LEU* 4.7 1.6 - - - -
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Residues in contact with ALA1017 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1015O MET 3.5 1.6 + - - -
1016O SER* 1.3 72.6 - - - +
1018O LEU* 1.3 56.0 + - - +
1020O GLN* 2.9 35.6 + - - +
1021O ILE* 2.9 26.0 + - + +
1317O LEU* 3.9 5.0 - - + +
1318O LEU 3.0 27.2 - - - +
1319O GLU* 3.6 24.9 - - + +
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Residues in contact with LEU1018 (chain O).
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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1016O SER 3.2 0.6 - - - -
1017O ALA* 1.3 78.6 - - - +
1019O GLN* 1.3 59.2 + - + +
1020O GLN 3.2 1.0 + - - -
1021O ILE* 3.4 23.4 + - + +
1023O TYR* 3.1 33.6 - - + +
1063O PHE* 6.3 1.1 - - + -
1068O VAL* 4.3 24.2 - - + -
1071O GLN* 5.8 2.7 - - - +
1072O ILE* 5.3 7.0 - - + -
1081O ASP 5.2 1.6 - - - +
1085O VAL* 3.6 22.9 - - + -
1318O LEU* 3.4 36.6 + - + +
1339O GLU* 5.6 6.3 - - + +
1343O ALA* 5.5 9.0 - - + -
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Residues in contact with GLN1019 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1015O MET* 4.2 13.2 - - + +
1016O SER* 2.8 18.9 + - - +
1018O LEU* 1.3 73.2 - - + +
1020O GLN* 1.3 58.1 + - - +
1023O TYR* 3.1 33.5 - - + +
1024O GLN* 4.1 2.3 + - - +
1056O LYS 4.5 4.1 + - - +
1057O LYS* 3.8 13.1 - - - +
1059O CYS* 3.0 46.4 + - - +
1062O PRO* 3.5 28.9 - - + +
1085O VAL* 2.7 37.3 + - + +
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Residues in contact with GLN1020 (chain O).
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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1014O LYS* 5.0 8.5 - - - +
1015O MET* 2.8 34.1 + - + +
1016O SER 2.7 16.9 + - - +
1017O ALA* 2.9 26.9 + - - +
1019O GLN* 1.3 73.8 - - - +
1021O ILE* 1.3 69.1 + - + +
1022O MET 3.6 0.9 - - - -
1023O TYR 3.1 0.4 + - - -
1024O GLN* 2.9 60.2 + - - +
1317O LEU* 5.0 3.6 - - - +
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Residues in contact with ILE1021 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1017O ALA* 2.9 27.2 + - + +
1018O LEU* 3.4 26.4 + - + +
1020O GLN* 1.3 75.0 - - + +
1022O MET* 1.3 86.4 + - + +
1023O TYR* 5.6 0.4 - - + -
1024O GLN* 4.6 4.1 + - - +
1025O GLN* 4.4 8.3 + - - +
1318O LEU 5.0 5.4 - - - +
1320O LYS* 4.8 21.1 - - + +
1340O SER* 4.8 16.6 - - - -
1343O ALA* 5.9 1.6 - - + -
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Residues in contact with MET1022 (chain O).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1021O ILE* 1.3 98.7 - - + +
1023O TYR* 1.3 63.9 + - + +
1024O GLN 3.5 0.7 - - - -
1025O GLN* 3.1 43.9 + - - +
1029O TYR* 2.9 55.1 - - + +
1340O SER* 4.2 10.8 - - - +
1343O ALA* 4.3 4.3 - - + -
1344O ALA* 3.8 23.8 - - + +
1347O ASN* 3.3 23.8 - - - +
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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