Contacts of the helix formed by residues 1 - 32 (chain C) in PDB entry 1VZJ
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 1 (chain C).
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
2C THR* 1.3 72.4 + - - +
3C LEU* 2.7 37.8 + - - +
4C ASP* 2.8 33.8 + - - +
5C GLU* 3.0 23.4 + - - +
30H HIS* 4.0 8.2 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with THR 2 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1C ASP* 1.3 78.3 + - - +
3C LEU* 1.3 64.1 + - + +
5C GLU* 4.0 3.4 - - - +
6C ALA* 3.4 20.1 + - - +
7D GLU* 3.5 26.6 + - - +
11D LYS* 4.3 7.4 + - - -
26H ASN 5.5 0.7 + - - -
27H GLN* 6.3 0.2 - - - +
30H HIS* 3.3 36.2 + - - +
15I PHE* 4.4 10.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LEU 3 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
3B LEU* 3.3 33.7 - - + -
1C ASP* 2.7 21.7 + - - +
2C THR* 1.3 72.7 - - + +
4C ASP* 1.3 56.4 + - - +
6C ALA* 3.0 2.0 + - - +
7C GLU* 2.7 39.2 + - + +
13I PRO* 3.6 39.7 - - + +
15I PHE* 4.1 40.4 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 4 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
2B THR* 5.7 0.5 + - - -
1C ASP* 2.8 36.5 + - - +
3C LEU* 1.3 80.3 - - - +
5C GLU* 1.3 54.7 + - - +
7C GLU* 2.7 30.4 + - - +
8C ARG* 2.8 14.0 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 5 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
1C ASP 3.0 12.0 + - - +
2C THR* 4.0 8.5 - - - +
4C ASP* 1.3 80.7 - - - +
6C ALA* 1.3 60.9 + - - +
8C ARG* 3.1 18.9 + - - +
9C GLN* 3.0 30.8 + - + +
30H HIS* 4.7 11.9 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 6 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
2C THR 3.4 12.3 + - - +
3C LEU 3.0 8.4 + - - +
5C GLU* 1.3 76.4 - - - +
7C GLU* 1.3 60.5 + - - +
9C GLN* 3.3 14.4 + - - +
10C TRP* 2.9 29.6 + - - +
10D TRP* 3.9 26.5 - - + -
11D LYS* 5.4 5.6 - - - -
13I PRO* 3.8 11.2 - - + -
15I PHE* 4.0 11.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 7 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
2B THR* 5.5 7.1 - - - -
3B LEU* 4.1 17.7 - - - +
6B ALA* 3.4 28.6 - - - +
3C LEU* 2.7 14.4 + - + +
4C ASP* 2.9 17.0 - - - +
6C ALA* 1.3 76.7 - - - +
8C ARG* 1.3 56.2 + - - +
10C TRP* 3.5 23.7 + - - +
11C LYS* 3.0 31.4 + - + +
13I PRO* 3.6 28.0 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 8 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
4C ASP 2.8 8.6 + - - +
5C GLU* 3.2 24.7 - - - +
6C ALA 3.1 0.2 - - - -
7C GLU* 1.3 76.5 - - - +
9C GLN* 1.3 67.2 + - + +
11C LYS* 3.1 8.5 + - + +
12C ALA* 3.0 23.4 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with GLN 9 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
5C GLU* 3.0 27.7 + - + +
6C ALA* 3.7 16.0 - - - +
8C ARG* 1.3 76.0 - - + +
10C TRP* 1.3 62.3 - - - +
12C ALA* 3.3 9.5 + - - +
13C GLU* 3.1 19.9 + - - +
10D TRP* 4.9 2.8 - - - -
11D LYS* 5.8 4.9 - - - +
14D PHE* 3.7 30.4 - - + -
15D HIS* 4.7 13.8 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with TRP 10 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
6B ALA* 3.8 30.1 - - + -
9B GLN* 4.9 1.1 - - + -
10B TRP* 4.0 9.2 - - + -
6C ALA 2.9 16.6 + - - +
7C GLU* 3.5 25.4 - - - +
8C ARG 3.1 0.2 - - - -
9C GLN* 1.3 75.5 - - - +
11C LYS* 1.3 76.2 + - + +
13C GLU* 3.2 3.1 + - + +
14C PHE* 2.7 69.9 + + + +
10D TRP* 4.3 5.2 - + + -
14D PHE* 3.7 24.0 - + - -
17D TRP* 5.9 0.4 - + - -
9I LEU* 4.1 11.8 - - + +
10I PHE* 2.5 34.2 + - + -
11I PRO 3.6 11.5 - - - -
12I PRO* 3.7 19.1 - - + -
13I PRO* 3.8 12.3 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 11 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
6B ALA* 5.8 1.4 - - - +
9B GLN* 3.0 30.1 + - - +
7C GLU* 3.0 18.3 + - + +
8C ARG* 3.1 11.9 + - + +
10C TRP* 1.3 91.4 - - + +
12C ALA* 1.3 57.5 + - - +
14C PHE* 3.0 28.7 + - - +
15C HIS* 2.9 54.9 + - + -
----------------------------------------------------------
Back to top of page
Residues in contact with ALA 12 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
8C ARG* 3.0 12.0 + - + +
9C GLN* 3.4 12.8 - - - +
10C TRP 3.2 0.2 - - - -
11C LYS* 1.3 76.9 - - - +
13C GLU* 1.3 66.0 + - + +
15C HIS* 3.3 11.4 + - - +
16C ARG* 3.2 21.3 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with GLU 13 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
9C GLN 3.1 7.3 + - - +
10C TRP* 3.7 7.2 - - + +
12C ALA* 1.3 80.7 - - + +
14C PHE* 1.3 65.0 + - - +
16C ARG* 3.0 44.3 + - - +
17C TRP* 3.0 22.9 + - - +
14D PHE* 3.6 28.3 - - + -
17D TRP* 3.9 21.6 - - + -
18D SER* 3.5 24.3 + - - +
21D MSE 4.3 10.0 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 14 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
9B GLN* 4.3 17.0 - - + -
13B GLU* 3.5 41.7 - - + -
10C TRP* 2.7 44.8 + + + +
11C LYS* 3.0 33.0 + - - +
13C GLU* 1.3 77.4 - - - +
15C HIS* 1.3 66.3 + + + +
17C TRP* 3.1 7.7 + + - +
18C SER* 3.1 32.6 + - - -
9I LEU* 4.0 27.8 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 15 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
11C LYS* 2.9 39.9 + - + +
12C ALA* 3.3 9.9 + - - +
14C PHE* 1.3 84.2 - + + +
16C ARG* 1.3 61.4 + - - +
18C SER* 3.2 17.9 + - - -
19C SER* 3.2 12.5 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with ARG 16 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
12C ALA 3.2 13.3 + - - +
13C GLU* 3.0 38.8 + - - +
15C HIS* 1.3 80.5 - - - +
17C TRP* 1.3 57.7 + - - +
19C SER* 3.5 6.7 - - - -
20C TYR* 3.1 64.4 + - + -
21D MSE 4.7 4.5 - - + -
22D VAL* 5.7 7.1 - - - +
----------------------------------------------------------
Back to top of page
Residues in contact with TRP 17 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
13B GLU* 3.9 44.0 - - + -
16B ARG* 6.3 2.7 - - + -
17B TRP* 3.7 29.2 - + + -
13C GLU 3.0 14.9 + - - +
14C PHE* 3.3 17.5 - + - +
16C ARG* 1.3 77.2 - - - +
18C SER* 1.3 76.3 + - - +
20C TYR* 3.2 7.7 + - - +
21C MSE 3.0 50.3 + - + +
17D TRP* 3.9 10.5 - + + -
21D MSE 3.7 27.3 - - + -
6I PRO* 4.2 8.6 - - + +
7I PRO 2.8 21.4 + - - -
9I LEU* 3.7 33.1 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with SER 18 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
13B GLU* 5.3 1.9 + - - -
14C PHE* 3.1 30.2 + - - -
15C HIS* 3.2 12.1 + - - -
17C TRP* 1.3 85.1 - - - +
19C SER* 1.3 56.6 + - - +
21C MSE 3.1 7.9 + - - +
22C VAL* 2.8 35.3 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with SER 19 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
15C HIS 3.2 10.0 + - - -
16C ARG* 3.5 12.6 - - - -
18C SER* 1.3 76.9 - - - +
20C TYR* 1.3 72.2 + - - +
22C VAL* 3.1 8.1 + - - +
23C HIS* 3.0 44.3 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 20 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
16C ARG* 3.1 40.0 + - + -
17C TRP* 3.2 8.9 + - - +
19C SER* 1.3 84.7 - - - +
21C MSE 1.3 57.9 + - - +
23C HIS* 4.0 5.4 - + - +
24C TRP* 2.9 31.2 + - - +
21D MSE 3.4 40.2 + - + +
22D VAL* 5.2 4.0 - - - +
24D TRP* 3.3 31.4 - + + -
25D LYS* 3.5 54.2 + - + +
28D PHE* 6.2 0.4 - - - -
6I PRO* 3.8 9.2 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with MSE 21 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
16B ARG* 5.6 6.1 - - - -
17B TRP* 4.1 11.4 - - + -
20B TYR* 3.7 32.0 - - + -
17C TRP* 3.0 56.7 + - + +
18C SER* 3.3 10.3 - - - +
20C TYR* 1.3 75.6 - - - +
22C VAL* 1.3 60.0 + - - +
24C TRP* 3.8 3.0 - - + +
25C LYS* 2.8 32.7 + - - +
5I PRO* 3.2 22.4 - - + -
6I PRO* 2.9 41.1 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with VAL 22 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
18C SER* 2.8 25.9 + - - +
19C SER* 3.1 9.4 + - - +
21C MSE 1.3 74.9 - - + +
23C HIS* 1.3 67.0 + - + +
25C LYS* 4.0 2.7 - - - +
26C ASN* 3.2 24.7 + - + +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 23 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
19C SER* 3.0 41.4 + - - +
20C TYR* 4.1 4.9 - + - +
22C VAL* 1.3 81.3 - - + +
24C TRP* 1.3 63.2 + - - +
26C ASN* 3.7 5.0 - - - +
27C GLN* 3.1 35.9 + - - +
25D LYS* 6.4 3.1 - - - -
28D PHE* 4.0 18.1 - + + -
----------------------------------------------------------
Back to top of page
Residues in contact with TRP 24 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
20B TYR* 3.5 48.2 - + + -
24B TRP* 4.1 7.0 - + + -
20C TYR 2.9 22.6 + - - +
21C MSE 3.8 2.5 - - + +
23C HIS* 1.3 75.5 - - - +
25C LYS* 1.3 94.0 + - + +
27C GLN* 3.9 1.2 - - - +
28C PHE* 3.0 56.6 + + + +
24D TRP* 3.7 22.4 - + + -
28D PHE* 3.8 19.0 - + - -
2I LEU* 3.0 11.9 - - + +
3I THR 2.8 24.7 + - - -
4I PRO 3.5 1.6 - - - -
5I PRO* 3.6 34.5 - - + -
6I PRO* 4.1 6.7 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with LYS 25 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
19B SER* 5.8 0.6 + - - -
20B TYR* 3.1 51.1 + - + +
23B HIS* 5.2 11.1 + - - -
21C MSE 2.8 21.8 + - - +
22C VAL* 4.1 3.1 - - - +
24C TRP* 1.3 84.0 - - + +
26C ASN* 1.3 56.2 + - - +
28C PHE* 3.1 8.9 + - + +
29C ASP* 2.6 63.1 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with ASN 26 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
22C VAL* 3.2 18.7 + - + +
23C HIS* 3.7 6.1 - - - +
25C LYS* 1.3 73.7 - - - +
27C GLN* 1.3 71.5 + - - +
28C PHE 3.0 1.0 + - - -
29C ASP* 3.0 16.5 + - - +
30C HIS* 3.1 46.5 + - - -
----------------------------------------------------------
Back to top of page
Residues in contact with GLN 27 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
23C HIS* 3.1 23.1 + - - +
24C TRP 3.9 2.0 - - - +
26C ASN* 1.3 83.9 + - - +
28C PHE* 1.3 56.5 + - - +
30C HIS* 3.4 7.1 + - - +
31C TYR* 2.5 53.5 + - + +
28D PHE* 3.0 32.6 - - + -
31D TYR* 6.1 0.8 - - - -
32D SER* 2.7 32.6 + - - -
2I LEU* 3.8 11.4 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with PHE 28 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
23B HIS* 4.1 32.5 - - + -
24B TRP* 4.0 24.7 - + - -
27B GLN* 2.9 30.9 - - + +
24C TRP* 3.0 46.4 + + + +
25C LYS* 3.2 14.4 - - + +
26C ASN 3.0 0.4 - - - -
27C GLN* 1.3 74.4 - - - +
29C ASP* 1.3 80.4 + - - +
30C HIS 3.1 1.8 - - - -
31C TYR* 3.1 17.1 + - + +
32C SER* 3.6 12.2 + - - -
1I LEU* 5.9 1.8 - - + -
2I LEU* 3.7 18.3 - - + +
----------------------------------------------------------
Back to top of page
Residues in contact with ASP 29 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
25C LYS* 2.6 60.8 + - - +
26C ASN* 3.8 6.5 + - - +
28C PHE* 1.3 80.6 - - - +
30C HIS* 1.3 67.8 + - + +
32C SER* 3.5 18.9 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with HIS 30 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
26C ASN* 3.1 45.4 + - - +
27C GLN* 3.6 11.2 - - - +
28C PHE 3.1 0.6 - - - -
29C ASP* 1.3 85.2 - - + +
31C TYR* 1.3 65.8 + - + +
32C SER 3.2 6.2 + - - +
----------------------------------------------------------
Back to top of page
Residues in contact with TYR 31 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
27B GLN* 5.0 6.3 + - - +
31B TYR* 5.3 7.4 + - - -
27C GLN* 2.5 47.9 + - + +
28C PHE* 3.1 10.5 + - + +
30C HIS* 1.3 80.3 - - + +
32C SER* 1.3 58.5 + - - +
31D TYR* 3.3 44.3 + + - -
32D SER* 4.1 14.0 - - - -
1I LEU* 5.7 2.2 - - + -
2I LEU* 3.5 26.0 - - + -
----------------------------------------------------------
Back to top of page
Residues in contact with SER 32 (chain C).
Click here for Legend to table.
----------------------------------------------------------
Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
----------------------------------------------------------
27B GLN* 3.4 31.4 - - - +
31B TYR* 6.1 0.9 - - - -
28C PHE* 3.6 7.0 + - - -
29C ASP* 3.5 16.0 + - - -
30C HIS 3.2 6.4 - - - +
31C TYR* 1.3 81.4 - - - +
----------------------------------------------------------
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