Contacts of the helix formed by residues 394 - 404 (chain B) in PDB entry 1SQV
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 394 (chain B).
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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392B TYR* 3.8 27.8 - - + +
393B THR* 1.3 87.9 - - + +
395B PRO* 1.3 76.7 - - + +
396B SER* 3.9 13.9 - - - +
397B THR* 2.8 34.9 + - + -
398B VAL 2.9 10.4 + - - -
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Residues in contact with PRO 395 (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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33A PRO* 5.8 2.2 - - + -
368B TYR* 4.2 22.7 - - + +
369B LEU* 3.7 26.0 - - + -
372B VAL* 5.9 6.1 - - + -
392B TYR* 3.6 17.0 - - + +
393B THR 3.7 1.3 - - - +
394B PRO* 1.3 81.7 - - + -
396B SER* 1.3 65.0 + - - +
398B VAL* 2.8 2.4 + - - +
399B LEU* 2.8 31.8 + - + +
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Residues in contact with SER 396 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
394B PRO* 3.9 14.6 - - - +
395B PRO* 1.3 75.7 - - - +
397B THR* 1.3 60.2 + - - +
399B LEU* 3.8 8.7 + - - +
400B GLN* 3.2 26.5 + - - +
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Residues in contact with THR 397 (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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393B THR* 3.4 18.4 - - - +
394B PRO* 2.8 35.2 + - + +
396B SER* 1.3 80.8 - - - +
398B VAL* 1.3 61.9 + - - +
400B GLN* 3.4 17.0 - - - +
401B GLN* 3.1 35.0 + - - -
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Residues in contact with VAL 398 (chain B).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
270B ASN* 6.0 1.3 - - - +
368B TYR* 3.6 35.0 - - + +
393B THR* 3.3 30.7 - - + +
394B PRO 2.9 7.2 + - - +
395B PRO 2.8 7.4 + - - +
397B THR* 1.3 74.9 - - - +
399B LEU* 1.3 59.9 + - - +
401B GLN* 2.9 13.8 + - + +
402B ILE* 2.9 38.7 + - + +
1I MET* 3.6 40.2 - - + +
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Residues in contact with LEU 399 (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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365B LYS* 3.6 39.4 - - + +
368B TYR* 4.3 10.3 - - + -
369B LEU* 3.7 45.1 - - + -
395B PRO* 2.8 24.9 + - + +
396B SER* 4.0 6.1 - - - +
398B VAL* 1.3 72.6 - - - +
400B GLN* 1.3 51.8 + - - +
402B ILE* 3.2 10.9 + - + +
403B ASP* 2.7 43.8 + - - +
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Residues in contact with GLN 400 (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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396B SER 3.2 16.6 + - - +
397B THR* 3.4 21.5 - - - +
398B VAL 3.1 0.2 - - - -
399B LEU* 1.3 73.6 - - - +
401B GLN* 1.3 62.6 + - + +
403B ASP* 3.0 12.8 + - - +
404B ALA* 2.9 28.4 + - + +
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Residues in contact with GLN 401 (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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270B ASN* 4.8 19.3 + - - +
393B THR* 4.3 13.1 - - - +
397B THR* 3.1 30.0 + - - +
398B VAL* 2.9 16.2 + - + +
400B GLN* 1.3 85.5 - - + +
402B ILE* 1.3 62.1 + - - +
404B ALA* 3.2 21.6 + - + +
405B VAL* 3.6 9.5 + - - +
1I MET 5.1 5.5 + - - -
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Residues in contact with ILE 402 (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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270B ASN* 4.9 12.3 - - + +
274B VAL* 4.6 2.7 - - + -
361B LYS* 3.7 27.8 - - + +
364B LEU* 4.3 31.4 - - + -
365B LYS* 3.8 37.2 - - + -
368B TYR* 5.0 5.2 - - + -
398B VAL* 2.9 34.4 + - + +
399B LEU* 3.4 11.0 - - + +
401B GLN* 1.3 72.9 - - - +
403B ASP* 1.3 66.1 + - - +
404B ALA 2.9 1.4 + - - -
405B VAL* 3.1 24.9 + - - +
1I MET* 5.0 4.3 - - - -
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Residues in contact with ASP 403 (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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358B GLN* 5.0 2.8 - - - +
361B LYS* 3.4 23.4 + - - +
365B LYS* 2.3 36.7 + - - -
399B LEU* 2.7 25.3 + - - +
400B GLN* 3.3 11.9 - - - +
402B ILE* 1.3 70.4 - - - +
404B ALA* 1.3 60.7 + - - +
405B VAL 3.1 2.8 + - - +
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Residues in contact with ALA 404 (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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400B GLN* 2.9 13.2 + - + +
401B GLN* 3.3 17.9 - - + +
402B ILE 2.9 0.8 + - - -
403B ASP* 1.3 74.7 - - - +
405B VAL* 1.3 62.3 + - - +
406B ALA* 3.4 4.2 + - - +
409B ASP* 4.6 1.6 - - - +
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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