Contacts of the helix formed by residues 980 - 984 (chain B) in PDB entry 1OFD
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 980 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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472B THR* 6.2 1.3 - - + -
978B GLN* 4.1 6.9 - - + +
979B LEU* 1.3 96.2 - - + +
981B GLY* 1.3 60.4 + - - +
982B LYS* 4.1 17.0 - - + -
983B LYS* 2.9 32.7 + - + +
984B VAL* 3.6 4.5 + - - +
999B THR* 4.2 8.1 - - + +
1066B GLY 5.6 0.2 - - - +
1067B ALA* 4.2 16.2 - - + -
1144B HIS* 3.4 31.0 - - + +
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Residues in contact with GLY 981 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
979B LEU 3.4 0.8 + - - -
980B PRO* 1.3 71.2 - - - +
982B LYS* 1.3 61.2 + - - +
984B VAL* 3.1 21.5 + - - +
996B PRO 4.0 0.5 - - - +
997B GLY* 3.4 19.9 - - - +
998B VAL 3.7 2.7 - - - -
999B THR* 3.0 42.1 + - - -
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Residues in contact with LYS 982 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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980B PRO* 4.1 15.9 - - + -
981B GLY* 1.3 75.8 - - - +
983B LYS* 1.3 62.0 + - + +
984B VAL 3.4 2.0 - - - -
985B SER* 5.1 0.7 + - - -
1144B HIS 4.7 4.9 - - - +
1145B THR* 2.9 31.2 + - - +
1146B ASN* 3.6 27.6 + - + +
1147B ASN* 4.5 10.9 + - - +
1155B GLN* 5.4 0.7 - - - +
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Residues in contact with LYS 983 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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878B GLY 3.5 14.8 - - - -
879B ALA* 2.9 31.2 + - - +
979B LEU* 4.0 19.7 - - + +
980B PRO* 2.9 27.2 + - + +
982B LYS* 1.3 79.7 - - + +
984B VAL* 1.3 62.0 + - - +
985B SER 3.0 8.2 + - - -
988B ILE* 3.5 7.4 - - - +
1066B GLY* 4.8 4.0 + - - -
1143B CYS* 2.8 28.2 + - - +
1144B HIS* 4.6 0.4 - - - -
1146B ASN* 3.4 34.1 - - + +
1153B ALA* 3.1 16.2 + - - +
1154B THR* 4.5 1.6 - - - +
1155B GLN* 3.2 25.5 - - + +
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Residues in contact with VAL 984 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
979B LEU* 4.1 18.2 - - + +
980B PRO 3.7 15.3 - - - +
981B GLY* 3.1 12.4 + - - +
982B LYS 4.9 1.3 - - - -
983B LYS* 1.3 74.2 - - - +
985B SER* 1.3 68.9 + - - +
988B ILE* 4.1 17.0 - - + -
989B ALA* 4.2 5.6 - - + +
994B SER* 4.0 15.7 - - - +
995B LYS 3.9 13.9 - - - +
996B PRO* 2.5 35.6 - - - +
998B VAL 3.5 21.5 - - - +
1000B LEU* 4.2 9.0 - - + -
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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