Contacts of the helix formed by residues 1040 - 1047 (chain A) in PDB entry 5DSG
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 LYS1040 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1038A ASN* 2.7 12.6 + - - +
1039A ALA* 1.3 80.5 - - - +
1041A LEU* 1.3 59.6 + - - -
1042A LYS 3.4 0.9 - - - -
1043A PRO* 3.3 10.7 - - - +
1044A VAL* 3.6 15.1 - - + +
1069A ALA* 3.1 36.2 + - + +
1070A GLY* 5.2 0.8 - - - -
1072A THR* 3.3 28.6 + - + +
1075A LEU* 4.3 15.4 - - + +
1076A ARG* 6.6 0.2 - - + -
1079A GLN* 4.9 0.9 + - - -
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Residues in contact with LEU1041 (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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1035A ILE* 3.8 26.0 - - + +
1038A ASN* 2.9 27.7 + - + +
1040A LYS* 1.3 75.4 - - - +
1042A LYS* 1.3 60.3 + - - +
1044A VAL* 3.4 6.0 + - - +
1045A TYR* 2.9 30.8 + - - +
1056A LEU* 4.2 5.8 - - + +
1060A VAL* 4.3 14.8 - - + -
1065A GLU* 3.5 35.4 - - + +
1068A VAL* 3.7 19.3 - - + -
1069A ALA* 3.9 9.0 - - - +
1075A LEU* 3.6 30.5 - - + -
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Residues in contact with LYS1042 (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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1035A ILE* 3.5 10.0 + - - +
1036A LEU* 4.6 22.0 - - + +
1038A ASN 3.4 17.1 + - - +
1039A ALA* 4.6 3.1 - - - +
1041A LEU* 1.3 78.7 - - - +
1043A PRO* 1.4 66.5 - - + +
1045A TYR* 3.2 4.2 + - - +
1046A ASP* 2.9 54.5 + - - +
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Residues in contact with PRO1043 (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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1039A ALA 3.3 22.7 - - - +
1040A LYS* 3.3 13.0 - - - +
1042A LYS* 1.4 94.5 - - + +
1044A VAL* 1.3 58.3 + - - +
1046A ASP* 3.6 8.5 + - + +
1047A SER* 3.2 25.3 + - - -
1079A GLN* 3.4 22.0 + - - +
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Residues in contact with VAL1044 (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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1040A LYS* 3.6 16.2 - - + +
1041A LEU 3.8 5.4 - - - +
1042A LYS 3.2 0.4 - - - -
1043A PRO* 1.3 73.6 - - - +
1045A TYR* 1.3 67.2 + - - +
1047A SER* 3.3 11.5 + - - -
1048A LEU* 3.4 18.4 + - + +
1056A LEU* 4.3 9.0 - - + -
1075A LEU* 3.6 58.3 - - + +
1078A LEU* 3.9 17.5 - - + -
1079A GLN* 3.5 26.6 - - + +
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Residues in contact with TYR1045 (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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1032A VAL* 4.3 15.9 - - + +
1035A ILE* 3.6 29.6 - - + -
1036A LEU* 4.4 20.0 - - + -
1041A LEU 2.9 18.4 + - - +
1042A LYS* 3.7 3.6 - - - +
1044A VAL* 1.3 78.2 - - - +
1046A ASP* 1.3 72.2 + - - +
1047A SER 3.4 0.3 + - - -
1048A LEU* 3.5 11.4 + - - +
1053A ARG* 3.5 64.1 + - + -
1056A LEU* 4.0 13.0 - - + +
1057A ILE* 3.8 31.2 - - + +
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Residues in contact with ASP1046 (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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1036A LEU* 5.0 4.3 - - - +
1042A LYS* 2.9 49.3 + - - +
1043A PRO* 3.9 7.5 - - + +
1045A TYR* 1.3 88.5 - - - +
1047A SER* 1.3 58.5 + - - +
1048A LEU 3.3 3.6 + - - +
1053A ARG* 3.9 12.2 + - - +
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Residues in contact with SER1047 (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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1043A PRO 3.2 17.4 + - - -
1044A VAL 3.3 4.0 + - - -
1045A TYR 3.2 0.4 - - - -
1046A ASP* 1.3 75.3 - - - +
1048A LEU* 1.3 63.8 + - - +
1078A LEU 4.6 0.5 - - - +
1079A GLN* 4.6 22.7 - - - +
1081A LYS* 2.9 27.8 + - - +
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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