. 2018 Oct 31;29(4):288–297. doi: 10.1093/glycob/cwy093

Table II.

N-glycosylation acceptor sites that include the “DGGK” loop

Organism	Phylum	Sequence	OST subunits^a
STT3
S. cerevisiae	Fungi	DNNTWNNT	8
H. sapiens (A)	Metazoa	DNNTWNNT	9
H. sapiens (B)	Metazoa	DNNTWNNS	8
D. melanogaster (A)	Metazoa	DNNTWNNT	9
D. melanogaster (B)	Metazoa	DNNTWNNT	8
O. sativa (A)	Viridiplantae	DNNTWNNT	9
O. sativa (B)	Viridiplantae	DNNTWNNT	8
T. vaginalis	Parabasalia	DGNTNNFT	4
E. histolytica	Amoebozoa	DNNTWNNS	4
T. thermophila	Alveolata	DNNTWNNT	5
P. falciparum	Alveolata	DNNTWNPE	4
C. parvum	Alveolata	DNNTWNNT	5
T. brucei	Euglenozoa	DGNTWNHE	1
L. major	Euglenozoa	DGNTWNHE	1
G. lamblia	Diplomonadida	DGLTRSTY	1
PglB
C. lari	Proteobacteria	DGGKHLGK	1
AglB
A. fulgidus	Euryarchaeota	NPFQAGIG	1
M. jannaschii	Euryarchaeota	DGGSQNSP	1
P. furiosus	Euryarchaeota	DGGHARDR	1
S. solfataricus	Crenarchaeota^b	ENNTLNGT	1
P. calidifontis	Crenarchaeota^b	DNSTINAT	1
M. yellowstonensis	Crenarchaeota^b	ENNTLNDT	1
Bathyarchaeota sp.^c	Bathyarchaeota^b	DNGTINMT	1
N. viennensis	Thaumarchaeota^b	DNATINQT	1
N. maritimus	Thaumarchaeota^b	DNSTILDH	1
Odinarchaeota sp.^c	ASGARD	DNGTFNQT	1
Thorarchaeota sp.^c	ASGARD	DNATFNAT	1
N. equitans	Nanoarchaeota	DGGNYYPY	1

^aSubunit compositions of OST complexes that have not been purified are based upon protein database searches. Four subunit complexes consist of STT3, WBP1, OST1 and OST2 while five subunit OST complexes in addition contain OST3. It is not known whether OST4 or OST5 are also present in the four or five subunit OST complexes as these small hydrophobic proteins can be overlooked in protein database searches.

^bCrenarchaeota, Bathyarchaeota and Thaumarchaeota are part of the TACK superphylum.

^cProtein sequences derived from DNA sequencing of uncultured organisms.