Contacts of the helix formed by residues 1066 - 1070 (chain A) in PDB entry 1DJO
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 ALA1066 (chain A).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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1036A ALA* 4.5 13.5 - - + -
1037A ALA* 4.5 1.0 - - + +
1065A ILE* 1.3 76.2 - - - +
1067A SER* 1.3 60.2 + - - +
1068A GLU* 3.0 29.6 - - + +
1069A SER* 2.9 32.9 + - - +
1070A ILE 4.0 0.2 + - - -
4001A CAB 3.2 11.2 - - - +
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Residues in contact with SER1067 (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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1065A ILE* 3.8 7.9 + - - +
1066A ALA* 1.3 70.1 - - - +
1068A GLU* 1.3 61.6 + - - +
1069A SER 3.0 0.8 + - - -
1070A ILE* 3.2 17.9 + - - +
1098A HIS* 3.5 22.2 - - - -
1099A GLY* 3.2 10.1 + - - +
1101A ASP* 3.4 1.0 - - - +
1102A THR* 2.9 49.2 + - - +
4001A CAB 2.3 32.2 + - - -
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Residues in contact with GLU1068 (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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1066A ALA* 3.0 30.2 - - - +
1067A SER* 1.3 74.6 + - - +
1069A SER* 1.3 64.0 + - - +
1070A ILE* 3.4 3.5 + - - +
1101A ASP* 3.6 3.5 - - - +
1102A THR* 4.2 10.4 - - - +
4001A CAB 3.2 20.5 + - - -
3229B SER* 5.8 0.3 + - - -
3230B TYR 4.6 9.9 - - - +
3232B ASN 5.6 0.3 + - - -
3254B THR* 3.9 9.6 - - - +
3258B SER* 3.8 22.0 - - - +
3259B VAL 3.6 27.7 + - - +
3260B SER* 3.4 16.7 + - - -
3294B GLU* 3.8 15.2 - - - +
3295B GLN* 5.3 3.5 + - - -
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Residues in contact with SER1069 (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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1065A ILE* 4.8 6.1 - - - +
1066A ALA* 2.9 16.7 + - - +
1068A GLU* 1.3 88.9 - - - +
1070A ILE* 1.3 62.3 + - - -
1071A THR* 3.8 10.3 + - - +
1074A ASP* 4.5 2.9 - - - +
3259B VAL 4.5 0.2 + - - -
3260B SER* 3.6 9.5 + - - -
3261B SER* 3.2 39.9 + - - -
3262B ARG* 5.2 2.7 - - - -
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Residues in contact with ILE1070 (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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1063A MET* 5.6 2.7 - - + -
1065A ILE* 4.1 14.6 - - + -
1066A ALA 4.0 0.4 + - - -
1067A SER* 3.2 18.9 + - - +
1068A GLU 3.4 1.7 - - - +
1069A SER* 1.3 80.4 - - - +
1071A THR* 1.3 67.0 + - - +
1074A ASP* 3.7 26.7 - - + +
1075A LEU* 4.4 16.8 - - + +
1078A LEU* 5.7 3.6 - - + -
1098A HIS* 3.9 13.0 - - + +
1102A THR* 3.7 8.7 - - - +
1105A GLU* 5.4 1.1 - - + +
1106A THR* 3.9 22.4 - - + +
3231B GLY* 3.9 20.1 - - - -
3232B ASN* 3.0 25.5 + - - -
3262B ARG* 4.9 0.7 + - - -
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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