Contacts of the helix formed by residues 432 - 438 (chain B) in PDB entry 5X61
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 ASP 432 (chain B).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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430B GLY 3.9 0.8 + - - -
431B LYS* 1.3 75.4 - - - +
433B PRO* 1.3 78.4 - - - +
434B HIS* 2.7 43.0 + - - +
435B VAL* 3.3 20.9 - - + +
436B LEU* 3.1 21.7 + - - +
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Residues in contact with PRO 433 (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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205B ARG* 3.8 18.4 - - - +
229B VAL* 3.7 27.4 - - + -
253B GLU* 3.5 22.2 - - + +
314B LEU* 4.2 6.9 - - + +
431B LYS 3.6 1.1 - - - +
432B ASP* 1.3 91.9 - - - +
434B HIS* 1.3 68.1 + - + +
436B LEU* 3.3 7.8 + - + +
437B VAL* 3.3 27.2 + - - +
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Residues in contact with HIS 434 (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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229B VAL* 4.1 25.2 - - + +
230B GLN 4.7 4.7 - - - -
251B LEU* 3.9 38.8 - - + +
432B ASP* 2.7 20.4 + - - +
433B PRO* 1.3 75.7 - - + +
435B VAL* 1.3 56.9 + - - +
436B LEU 3.0 6.0 + - - -
437B VAL* 3.3 8.0 + - + +
438B ASN* 2.8 40.4 + - - +
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Residues in contact with VAL 435 (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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412B VAL* 3.7 23.1 - - + +
431B LYS* 4.1 9.2 - - + -
432B ASP* 3.3 41.7 + - + +
434B HIS* 1.3 77.1 - - - +
436B LEU* 1.3 57.5 + - - +
438B ASN* 4.3 2.7 - - - +
439B ASN* 2.8 38.6 + - - +
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Residues in contact with LEU 436 (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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205B ARG* 4.3 10.3 - - - +
206B PHE* 3.8 22.4 - - + -
313B SER* 4.0 12.0 + - - +
314B LEU* 3.8 17.9 - - + -
408B LEU* 3.3 32.7 - - + +
412B VAL* 4.1 19.1 - - + -
428B LEU* 3.7 43.7 - - + +
431B LYS* 4.2 12.1 - - + +
432B ASP 3.1 8.3 + - - +
433B PRO 3.4 10.3 - - - +
434B HIS 3.0 0.2 - - - -
435B VAL* 1.3 78.7 - - - +
437B VAL* 1.3 62.3 + - - +
438B ASN 3.3 0.8 + - - -
439B ASN 3.8 3.1 + - - -
440B GLU* 4.0 1.9 + - - +
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Residues in contact with VAL 437 (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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229B VAL* 3.9 25.1 - - + +
230B GLN* 3.9 22.9 - - - +
231B ILE* 3.2 25.1 - - + +
312B ALA* 4.2 17.0 - - + -
313B SER* 4.4 0.9 - - - +
314B LEU* 4.2 14.8 - - + -
433B PRO 3.3 13.9 + - - +
434B HIS* 3.3 20.2 - - + +
436B LEU* 1.3 75.5 - - - +
438B ASN* 1.3 64.7 + - - +
439B ASN 3.5 0.4 - - - -
440B GLU* 3.2 27.8 - - - +
441B TRP* 4.0 0.9 - - - -
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Residues in contact with ASN 438 (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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231B ILE* 3.6 28.5 - - - +
232B VAL* 5.2 0.9 + - - +
434B HIS* 2.8 33.4 + - - +
435B VAL* 4.7 1.7 - - - +
436B LEU 3.3 0.2 - - - -
437B VAL* 1.3 84.1 - - - +
439B ASN* 1.3 69.5 + - - +
440B GLU 3.4 1.1 + - - -
441B TRP* 4.4 5.0 + - - +
810B EPE 3.9 27.5 + - - +
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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