Contacts of the helix formed by residues 929 - 933 (chain B) in PDB entry 2VKZ
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 GLY 929 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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535B ILE* 4.8 3.2 - - - +
637B PHE* 4.0 13.6 + - - +
893B VAL* 3.5 10.0 - - - +
927B ASN 2.4 15.6 + - - -
928B GLY* 1.3 71.9 - - - -
930B LEU* 1.3 60.4 + - - +
931B GLN* 2.9 18.2 + - - +
932B PHE* 2.9 32.8 + - - +
933B VAL 4.2 1.2 + - - -
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Residues in contact with LEU 930 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
829B ASN* 5.0 8.3 - - - +
833B PHE* 5.6 0.2 - - + -
871B TRP* 3.4 39.9 - - + +
888B ILE* 3.5 23.1 - - + -
893B VAL* 3.1 22.3 - - + +
894B ARG 5.6 1.1 - - - +
895B THR* 6.3 0.4 - - + -
927B ASN* 3.2 25.2 + - - +
928B GLY 3.4 0.6 - - - -
929B GLY* 1.3 76.1 - - - +
931B GLN* 1.3 59.8 + - - +
933B VAL* 2.8 47.8 + - + +
936B LEU* 3.8 27.5 - - + +
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Residues in contact with GLN 931 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
540B GLN* 4.6 2.8 + - - -
637B PHE* 5.4 1.6 + - - +
639B HIS* 4.1 9.0 - - - -
641B ARG* 3.5 15.9 + - - +
828B PRO* 5.9 0.4 - - + -
925B ASP* 3.0 25.2 + - - +
927B ASN* 3.0 40.2 + - - +
929B GLY* 3.7 8.5 - - - +
930B LEU* 1.3 73.3 - - - +
932B PHE* 1.3 87.6 + - + +
933B VAL 4.3 3.1 - - - +
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Residues in contact with PHE 932 (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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535B ILE* 3.8 37.9 - - + +
536B THR* 4.4 14.1 - - + -
537B LYS 5.4 1.3 - - - -
540B GLN* 4.9 7.4 - - + -
635B ILE* 3.7 32.3 - - + -
639B HIS* 6.0 1.6 - + - -
929B GLY* 2.9 30.8 + - - +
930B LEU 2.9 0.6 + - - -
931B GLN* 1.3 110.1 - - + +
933B VAL* 1.2 67.1 + - - +
934B PRO* 3.1 14.2 - - - +
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Residues in contact with VAL 933 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
535B ILE* 4.4 7.0 - - + +
888B ILE* 4.5 0.4 - - + -
891B MET* 4.9 10.5 - - + -
893B VAL* 4.1 14.8 - - + -
929B GLY 4.2 0.2 + - - -
930B LEU* 2.8 51.8 - - + +
931B GLN 4.3 3.3 - - - +
932B PHE* 1.2 75.0 - - - +
934B PRO* 1.3 72.1 - - + +
936B LEU* 3.8 18.8 - - + +
939B PHE* 3.6 36.1 - - + -
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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