Contacts of the helix formed by residues 368 - 381 (chain K) in PDB entry 5A31
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 HIS 368 (chain K).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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212K TYR* 2.7 45.2 + + - +
243K TYR* 4.2 5.6 - + - -
366K GLY 3.7 0.6 + - - -
367K CYS* 1.3 72.4 - - - +
369K LEU* 1.3 87.3 + - + +
370K PRO 3.5 0.7 - - - -
371K MET* 3.4 12.3 + - - +
372K LEU* 3.0 28.7 + - + +
394K ALA* 3.9 23.4 - - + +
397K ILE* 4.0 14.1 - - + -
398K ALA* 4.2 9.9 - - + -
401K ASP* 3.8 11.4 + - - -
404K VAL* 3.7 23.1 - - + +
3W ARG* 3.7 23.7 + - - -
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Residues in contact with LEU 369 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
242K TYR* 5.8 0.2 - - + -
243K TYR* 3.9 16.2 - - + +
338K ILE* 4.2 9.0 - - + -
367K CYS* 3.3 23.5 - - - -
368K HIS* 1.3 103.6 - - + +
370K PRO* 1.3 73.2 - - + +
372K LEU* 3.0 6.1 + - + +
373K TYR* 2.9 46.3 + - + +
1W MET* 4.8 7.4 - - - +
2W LEU 3.6 22.4 - - - +
3W ARG* 3.6 35.0 - - + +
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Residues in contact with PRO 370 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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338K ILE* 4.0 16.8 - - + -
357K TYR* 3.9 10.7 - - + +
360K ALA* 4.3 9.4 - - + +
361K ALA* 3.5 38.4 - - + +
364K MET* 4.5 8.1 - - + +
367K CYS* 3.4 28.7 - - - +
369K LEU* 1.3 91.9 - - + +
371K MET* 1.3 62.8 + - + +
373K TYR* 3.3 4.2 + - + +
374K ILE* 2.9 30.7 + - - +
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Residues in contact with MET 371 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
361K ALA* 4.9 8.9 - - + +
364K MET 4.6 2.2 - - - +
365K LYS* 3.2 24.7 - - - +
367K CYS 3.1 28.9 - - - +
368K HIS 3.4 6.0 + - - +
369K LEU 3.3 0.4 - - - -
370K PRO* 1.3 81.8 - - + +
372K LEU* 1.3 58.3 + - - +
374K ILE* 3.2 9.6 + - + +
375K GLY 2.9 24.3 + - - -
390K PHE* 3.6 25.1 - - + +
393K GLN* 4.0 29.2 - - + -
394K ALA* 4.0 14.1 - - + -
397K ILE* 3.7 21.8 - - + -
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Residues in contact with LEU 372 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
368K HIS* 3.0 24.6 + - + +
369K LEU* 3.0 7.8 + - + +
371K MET* 1.3 76.7 - - - +
373K TYR* 1.3 89.1 + - + +
375K GLY 3.1 2.4 + - - -
376K LEU* 2.9 22.2 + - - +
391K PHE* 3.3 19.4 - - + -
394K ALA* 4.1 12.5 - - + +
403K PHE* 4.9 5.8 - - + -
404K VAL* 4.2 33.2 - - + +
407K GLU* 3.6 33.9 - - + +
3W ARG* 6.2 0.7 - - - +
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Residues in contact with TYR 373 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
338K ILE* 5.4 1.3 - - + -
342K HIS* 3.9 19.7 - + - -
357K TYR* 3.7 33.2 - + + -
369K LEU* 2.9 55.7 + - + +
370K PRO* 4.7 0.4 - - + -
372K LEU* 1.3 92.6 - - + +
374K ILE* 1.3 65.1 - - - +
376K LEU* 3.2 11.6 + - + +
377K GLU* 2.9 28.1 + - - +
403K PHE* 5.2 3.8 - - - +
407K GLU* 4.0 10.1 - - - -
2W LEU 4.3 0.2 - - - -
3W ARG* 3.4 13.2 - - - +
4W ARG* 3.0 56.9 + - + +
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Residues in contact with ILE 374 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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354K MET* 4.3 6.2 - - - +
357K TYR* 3.5 23.1 - - + +
358K PHE* 3.6 35.9 - - + +
361K ALA* 3.9 20.6 - - + -
370K PRO 2.9 22.7 + - - +
371K MET* 3.5 9.2 - - + +
373K TYR* 1.3 74.4 - - - +
375K GLY* 1.3 64.2 + - - +
377K GLU* 3.2 6.7 + - - +
378K TYR* 2.9 50.2 + - + +
390K PHE* 3.7 18.4 - - + -
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Residues in contact with GLY 375 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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371K MET 2.9 14.4 + - - -
372K LEU 3.1 5.6 + - - -
374K ILE* 1.3 75.8 - - - +
376K LEU* 1.3 61.0 + - - +
378K TYR 3.1 2.4 + - - -
379K GLY 3.0 18.9 + - - -
387K ALA* 3.3 25.1 - - - +
390K PHE* 4.0 6.9 - - - +
391K PHE* 3.2 19.4 - - - -
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Residues in contact with LEU 376 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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372K LEU 2.9 12.3 + - - +
373K TYR* 3.5 12.8 - - + +
375K GLY* 1.3 74.4 - - - +
377K GLU* 1.3 61.6 + - - +
379K GLY* 3.3 1.6 + - - -
380K LEU* 3.2 46.0 + - + +
391K PHE* 3.3 10.6 - - + -
407K GLU* 2.8 37.9 - - + +
410K VAL* 4.9 3.4 - - + -
411K VAL* 4.1 7.2 - - + -
4W ARG* 3.0 40.4 - - - +
7W THR* 4.2 15.3 - - + +
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Residues in contact with GLU 377 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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345K ALA* 3.3 26.0 - - - +
350K HIS* 2.5 46.3 + - - +
353K ALA* 4.1 12.1 - - + -
354K MET* 3.4 24.2 - - + -
357K TYR* 4.2 16.6 - - + -
373K TYR* 2.9 19.8 + - + +
374K ILE* 3.8 0.4 - - - +
376K LEU* 1.3 74.6 - - + +
378K TYR* 1.3 66.5 + - - +
380K LEU* 3.5 5.3 + - - +
381K THR* 3.1 29.3 + - - +
4W ARG* 3.4 13.8 + - - +
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Residues in contact with TYR 378 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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537C CYS* 6.0 2.4 - - - -
547C LYS* 5.0 10.6 + - + +
550C LEU* 5.5 2.9 - - - +
354K MET* 3.9 20.8 - - + +
358K PHE* 3.6 22.8 - + - -
374K ILE* 2.9 43.8 + - + +
375K GLY 3.7 3.8 - - - +
377K GLU* 1.3 76.1 - - - +
379K GLY* 1.3 60.1 + - - +
381K THR* 3.1 14.4 + - - -
382K ASN 3.1 5.0 + - - -
383K ASN* 2.8 57.8 + - + +
386K LEU* 3.6 29.3 - - + +
387K ALA* 3.8 5.6 - - + +
390K PHE* 3.6 22.2 - + - -
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Residues in contact with GLY 379 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
375K GLY 3.0 11.9 + - - -
376K LEU 3.3 4.2 + - - -
377K GLU 3.3 0.2 - - - -
378K TYR* 1.3 75.8 - - - +
380K LEU* 1.3 59.7 + - - +
382K ASN* 2.9 19.9 + - - -
383K ASN 4.7 2.5 - - - -
384K SER* 5.3 0.9 - - - -
387K ALA* 3.6 3.0 - - - +
411K VAL* 3.7 32.1 - - - -
414K GLN* 4.0 17.2 - - - +
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Residues in contact with LEU 380 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1314A ILE 4.0 3.6 - - - +
1315A GLY* 4.0 17.7 - - - -
350K HIS* 3.8 33.7 - - + +
376K LEU* 3.2 40.0 + - + +
377K GLU* 3.5 5.4 + - - +
378K TYR 3.3 0.2 - - - -
379K GLY* 1.3 78.9 - - - +
381K THR* 1.3 58.9 + - - +
382K ASN* 3.1 3.9 + - - +
410K VAL* 4.5 9.0 - - + -
411K VAL* 5.0 1.1 - - + -
414K GLN* 3.9 26.7 - - + +
4W ARG* 5.3 4.0 - - - +
7W THR* 4.7 13.5 - - + +
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Residues in contact with THR 381 (chain K).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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1314A ILE* 4.7 23.0 - - + +
1315A GLY* 5.2 1.3 - - - -
547C LYS* 5.5 4.7 + - - +
350K HIS* 3.6 33.7 - - + -
351K ASP 5.5 0.4 - - - +
354K MET* 4.0 8.4 - - + +
377K GLU 3.1 18.9 + - - +
378K TYR* 3.1 23.4 + - - -
379K GLY 3.3 0.2 - - - -
380K LEU* 1.3 73.3 - - - +
382K ASN* 1.3 69.7 + - - +
383K ASN* 3.1 12.9 + - - +
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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
------------------------------------------------------------
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