Contacts of the helix formed by residues 499 - 525 (chain A) in PDB entry 3P4P
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 ASN 499 (chain A).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
173A MET* 6.0 4.9 - - - +
175A MET 4.3 1.6 + - - -
493A ASP* 3.0 48.0 + - - +
494A THR* 4.2 1.0 - - - +
495A SER* 3.2 27.5 + - - +
496A SER* 4.7 3.0 - - - -
497A VAL 3.4 0.4 - - - +
498A PHE* 1.3 73.2 - - - +
500A THR* 1.3 62.5 + - - +
501A ASP* 3.4 12.3 + - - +
502A LEU* 3.5 28.5 + - + +
503A LEU* 3.6 24.1 + - - +
52B SER* 4.3 0.7 - - - -
100B ARG* 4.2 5.6 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with THR 500 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
175A MET* 6.0 0.2 - - + -
498A PHE* 3.4 38.9 + - + -
499A ASN* 1.3 70.6 + - - +
501A ASP* 1.3 57.0 + - - +
502A LEU 3.1 2.0 - - - -
503A LEU* 4.3 8.5 - - + +
504A TYR* 2.6 70.6 + - + +
44B LYS* 2.7 31.9 + - - -
51B LEU 3.7 4.5 + - - -
52B SER* 3.6 15.2 + - - +
53B TYR 4.6 3.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 501 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
448A TRP* 4.2 14.5 + - - +
490A ARG 5.3 0.3 - - - +
491A ILE* 3.6 17.8 - - + +
492A THR* 3.8 7.3 + - - -
493A ASP* 3.7 20.4 + - + +
499A ASN* 3.6 10.1 - - - +
500A THR* 1.3 78.5 + - - +
502A LEU* 1.3 57.5 + - - +
504A TYR* 4.0 3.6 - - - +
505A THR* 2.5 42.3 + - - -
44B LYS* 3.6 10.7 - - - +
49B PRO* 3.4 40.2 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 502 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
173A MET* 4.4 23.3 - - + -
436A LEU* 4.5 12.6 - - + -
439A LEU* 3.8 15.9 - - + -
440A VAL* 4.3 18.6 - - + -
491A ILE* 3.4 35.9 - - + -
499A ASN* 3.5 30.7 + - + +
500A THR 3.1 0.6 - - - -
501A ASP* 1.3 78.8 - - - +
503A LEU* 1.3 63.1 + - + +
505A THR* 3.0 5.4 + - - -
506A ILE* 2.9 39.9 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 503 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
156A PHE* 3.5 44.3 - - + -
158A LEU* 5.4 0.9 - - + -
173A MET* 4.5 22.9 - - + -
175A MET* 3.9 40.8 - - + -
498A PHE* 5.8 0.9 - - + -
499A ASN 3.6 19.0 + - - +
500A THR* 3.2 13.5 + - + +
502A LEU* 1.3 75.8 - - + +
504A TYR* 1.3 73.3 + - + +
505A THR 3.0 0.3 + - - -
506A ILE* 3.1 14.7 + - + +
507A GLU* 3.0 27.6 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 504 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
448A TRP* 3.4 42.1 - + + -
500A THR* 2.6 53.3 + - + +
501A ASP 4.1 3.1 - - - +
503A LEU* 1.3 79.0 - - + +
505A THR* 1.3 58.6 + - - +
507A GLU* 3.4 22.3 + - - +
508A LEU* 3.0 26.3 + - - +
44B LYS* 4.0 21.3 - - + -
53B TYR* 3.9 15.5 + - - -
55B TRP* 3.0 40.2 + + - -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 505 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
439A LEU* 4.8 4.0 - - + -
448A TRP* 3.8 19.0 - - + +
486A PHE* 3.5 26.0 - - + -
489A VAL* 4.0 17.8 - - + +
491A ILE* 3.9 25.1 - - + +
501A ASP* 2.5 31.2 + - - -
502A LEU 3.0 5.5 + - - -
503A LEU 3.0 0.6 - - - -
504A TYR* 1.3 77.0 - - - +
506A ILE* 1.3 66.2 + - - +
508A LEU* 3.3 5.8 + - - +
509A GLY 3.1 16.3 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ILE 506 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
156A PHE* 4.0 17.9 - - + -
158A LEU* 3.8 28.3 - - + +
173A MET* 6.2 0.7 - - + -
436A LEU* 4.1 20.2 - - + -
439A LEU* 3.8 18.4 - - + -
486A PHE* 5.3 1.1 - - - -
502A LEU* 2.9 25.3 + - + +
503A LEU* 3.6 14.1 - - + +
505A THR* 1.3 77.4 - - - +
507A GLU* 1.3 63.4 + - - +
509A GLY* 2.9 13.6 + - - -
510A HIS* 3.0 31.4 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 507 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
37A LYS* 3.0 24.2 + - - +
156A PHE* 3.5 14.7 - - + -
206A GLY 4.5 4.0 - - - +
207A ILE* 5.2 2.3 - - - +
209A THR* 3.4 31.1 - - + +
211A ASP* 3.2 33.2 - - - +
503A LEU* 3.0 18.3 + - - +
504A TYR* 3.8 28.6 - - - +
506A ILE* 1.3 75.1 - - - +
508A LEU* 1.3 63.5 + - - +
510A HIS* 3.1 3.8 + - - +
511A GLY* 2.9 19.9 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 508 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
448A TRP* 3.7 48.5 - - + +
451A ILE* 4.1 13.5 - - + -
452A ARG* 3.7 29.6 - - + +
455A MET* 4.0 17.3 - - + -
486A PHE* 3.8 22.7 - - + -
504A TYR 3.0 14.2 + - - +
505A THR 3.5 6.7 - - - +
506A ILE 3.2 0.2 - - - -
507A GLU* 1.3 76.1 - - - +
509A GLY* 1.3 63.9 + - - +
511A GLY* 3.1 2.6 + - - +
512A LEU* 3.0 27.2 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 509 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
483A GLN* 5.0 0.4 - - - +
486A PHE* 3.6 28.7 - - - -
505A THR 3.1 7.3 + - - -
506A ILE* 2.9 9.5 + - - -
508A LEU* 1.3 80.0 - - - +
510A HIS* 1.3 60.4 + - - +
512A LEU* 3.4 8.7 + - - +
513A ASN* 3.3 23.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 510 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
156A PHE* 5.4 1.4 - + - -
158A LEU* 4.6 9.3 + - - -
209A THR 4.4 0.7 - - - +
210A GLY 3.9 6.5 - - - +
211A ASP* 3.5 54.5 + - + +
214A GLY* 3.6 14.7 - - - -
215A MET* 4.1 21.1 - - + +
218A SER* 5.6 2.9 - - - -
506A ILE* 3.0 37.1 + - + +
507A GLU 3.6 5.4 - - - +
509A GLY* 1.3 72.6 - - - +
511A GLY* 1.3 67.4 + - - +
513A ASN* 3.2 13.1 + - - +
514A VAL* 3.0 27.4 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLY 511 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
198A VAL* 3.8 19.6 - - - +
209A THR 3.9 8.6 + - - -
455A MET* 3.9 12.1 - - - -
507A GLU 2.9 13.4 + - - -
508A LEU* 3.1 4.7 + - - -
510A HIS* 1.3 76.4 - - - +
512A LEU* 1.3 58.0 + - - +
514A VAL* 3.0 4.4 + - - +
515A ALA* 2.8 31.5 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 512 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
451A ILE* 4.2 10.8 - - + -
455A MET* 3.8 29.1 - - + -
479A LEU* 4.5 9.3 - - + +
482A LEU* 3.9 30.3 - - + +
483A GLN* 3.5 30.5 - - + +
486A PHE* 3.8 34.1 - - + -
508A LEU* 3.0 19.0 + - + +
509A GLY* 3.8 5.8 - - - +
510A HIS 3.3 0.2 - - - -
511A GLY* 1.3 74.9 - - - +
513A ASN* 1.3 63.3 + - - +
515A ALA* 3.3 2.8 + - - +
516A GLU* 3.0 27.4 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 513 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
214A GLY* 5.1 8.1 + - - -
217A LEU* 3.9 18.4 - - + +
218A SER* 5.6 3.4 + - - +
483A GLN* 3.1 21.0 + - - +
509A GLY 3.3 15.5 + - - +
510A HIS* 3.2 17.7 + - - +
512A LEU* 1.3 76.2 - - - +
514A VAL* 1.3 64.1 + - + +
516A GLU* 3.4 4.4 + - - +
517A CYS* 3.2 25.5 + - - -
555A ARG* 3.4 30.8 + - - +
561A THR* 4.8 0.5 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 514 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
195A ALA* 3.9 26.0 - - + -
198A VAL* 4.9 2.9 - - + -
209A THR 5.6 0.2 - - - +
210A GLY* 4.0 22.2 - - - +
213A MET* 4.1 15.5 - - + -
214A GLY* 4.1 8.5 - - - +
217A LEU* 4.7 2.5 - - + -
223A LEU* 4.4 5.6 - - + -
226A MET* 3.9 13.5 - - + -
510A HIS 3.0 21.0 + - - +
511A GLY* 3.6 6.1 - - - +
513A ASN* 1.3 76.6 - - + +
515A ALA* 1.3 66.7 + - - +
517A CYS* 2.9 19.4 + - - +
518A MET* 3.0 25.0 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 515 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
198A VAL* 4.5 8.2 - - + +
455A MET* 4.5 2.9 - - - -
459A MET* 3.7 21.8 - - + +
479A LEU* 3.6 24.0 - - + -
511A GLY 2.8 19.6 + - - +
512A LEU 3.7 3.6 - - - +
514A VAL* 1.3 73.0 - - - +
516A GLU* 1.3 57.5 - - - +
518A MET* 2.9 14.5 + - - +
519A ALA* 2.7 32.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 516 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
476A ILE 5.3 1.0 - - - +
479A LEU* 3.9 22.3 - - + +
480A ALA* 3.8 17.2 - - - +
483A GLN* 3.0 31.4 + - + +
512A LEU 3.0 14.1 + - - +
513A ASN 3.5 7.9 - - - +
514A VAL 3.1 0.2 - - - -
515A ALA* 1.3 77.0 - - - +
517A CYS* 1.3 64.8 + - - +
519A ALA* 3.9 0.8 - - - +
520A HIS* 2.8 40.6 + - + +
555A ARG* 2.8 30.3 + - - -
559A GLY 4.5 5.0 - - - +
561A THR* 3.9 11.9 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with CYS 517 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
217A LEU* 3.6 31.0 - - - -
223A LEU* 4.4 5.2 - - + -
226A MET* 4.1 14.4 - - + -
513A ASN 3.2 13.0 + - - -
514A VAL 2.9 9.9 + - - +
516A GLU* 1.3 79.1 - - - +
518A MET* 1.3 56.3 + - - +
520A HIS* 3.9 0.5 - - - +
521A SER* 2.8 36.1 + - - -
553A ALA* 3.9 25.5 - - + +
554A PHE 5.1 1.3 - - - -
555A ARG* 5.1 1.1 - - - -
561A THR* 4.0 20.4 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with MET 518 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
195A ALA* 4.0 16.2 - - + +
198A VAL* 4.1 15.9 - - + -
199A TYR* 4.5 4.7 - - + +
226A MET* 3.7 47.6 - - + +
227A GLU* 4.0 3.5 - - - +
229A VAL* 4.2 25.8 - - + -
357A THR* 4.6 8.5 - - + +
459A MET* 4.0 22.7 - - + -
463A CYS* 4.9 3.4 - - - -
514A VAL* 3.0 24.2 + - + +
515A ALA* 2.9 7.7 + - - +
517A CYS* 1.3 76.3 - - - +
519A ALA* 1.3 58.2 + - - +
521A SER* 3.1 4.0 + - - -
522A ALA* 2.9 31.3 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 519 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
459A MET* 4.9 0.7 - - + -
463A CYS* 4.0 23.7 - - - -
472A MET* 5.0 4.0 - - - +
475A THR* 4.4 6.7 - - + -
476A ILE* 3.7 23.5 - - + +
479A LEU* 4.0 16.8 - - + -
515A ALA 2.7 19.1 + - - +
516A GLU* 3.9 2.0 - - - +
518A MET* 1.3 70.6 - - - +
520A HIS* 1.3 64.9 + - - +
522A ALA* 3.6 2.1 + - - +
523A MET* 3.1 24.9 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 520 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
476A ILE* 3.8 36.7 - - + +
516A GLU* 2.8 38.2 + - + +
517A CYS 3.9 0.9 - - - +
519A ALA* 1.3 71.2 - - - +
521A SER* 1.3 67.3 + - - +
523A MET* 3.2 3.9 + - - +
524A ALA* 3.1 22.5 + - - +
561A THR* 3.5 45.0 + - + -
563A LEU* 3.9 11.5 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with SER 521 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
226A MET* 4.1 8.0 + - - +
227A GLU* 3.2 31.5 + - - +
517A CYS 2.8 26.8 + - - -
518A MET 3.1 4.2 + - - -
520A HIS* 1.3 73.6 - - - +
522A ALA* 1.3 64.3 + - - +
524A ALA* 3.3 3.1 + - - +
525A ARG* 3.2 19.8 + - - +
551A THR* 3.1 27.0 + - - +
553A ALA* 4.2 4.9 - - - +
563A LEU* 3.9 9.0 - - - +
565A TYR* 4.9 0.3 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 522 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
227A GLU* 3.3 21.9 - - + +
463A CYS* 5.0 3.8 - - - -
467A ARG* 3.7 14.1 - - - +
472A MET* 3.7 13.5 - - + +
518A MET 2.9 14.0 + - - +
519A ALA* 4.1 4.5 - - - +
521A SER* 1.3 77.5 - - - +
523A MET* 1.3 61.6 + - - +
525A ARG 3.1 9.5 + - - -
532A HIS* 3.2 31.3 - - + -
534A ARG* 3.4 6.2 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with MET 523 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
469A PRO* 3.9 31.4 - - + +
472A MET* 3.7 36.0 - - + -
473A GLN* 4.0 21.3 - - - +
476A ILE* 3.7 17.5 - - + -
519A ALA 3.1 18.7 + - - +
520A HIS* 3.2 3.8 + - - +
522A ALA* 1.3 76.3 - - - +
524A ALA* 1.3 59.0 + - - +
526A LYS* 3.1 30.6 + - - +
534A ARG* 3.1 14.3 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 524 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
520A HIS 3.1 7.4 + - - +
521A SER 3.9 0.9 - - - +
523A MET* 1.3 77.9 - - - +
525A ARG* 1.3 60.0 + - - +
526A LYS* 3.0 21.8 + - - +
547A PHE* 3.8 12.0 - - - -
563A LEU* 3.4 33.4 - - + -
565A TYR* 3.6 10.7 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 525 (chain A).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
76A LEU* 4.0 8.0 - - - +
227A GLU* 2.6 29.4 + - - +
228A PHE* 3.5 17.7 - - - -
521A SER 3.2 8.0 + - - +
522A ALA 3.1 3.4 + - - -
524A ALA* 1.3 72.7 - - - +
526A LYS* 1.3 58.7 + - - +
527A GLU* 2.5 53.0 + - + -
529A ARG* 4.0 6.4 - - - +
532A HIS* 2.9 43.7 + - + +
534A ARG* 3.0 9.0 + - - -
547A PHE* 2.9 31.8 + - + +
549A LYS 2.4 29.1 + - - -
550A HIS 4.1 0.2 - - - -
551A THR* 3.6 19.4 + - - +
565A TYR* 4.6 5.8 - - - +
----------------------------------------------------------
Back to top of page
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
------------------------------------------------------------
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) + - + + + + + -
------------------------------------------------------------
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