TCDB is operated by the Saier Lab Bioinformatics Group
TCIDNameDomainKingdom/PhylumProtein(s)
4.D.2.1.1









UPF0104 of 340 aas and 8 putative TMSs

Archaea
Euryarchaeota
UPF0104 of Methanococcoides burtonii (Q12TG6)
4.D.2.1.2









Nitrogenase molybdenum-iron (NMI) α and β chain-like protein of 347aas and 10 putative TMSs

Archaea
Euryarchaeota
NMI-like protein of Methanocorpusculum labreanum Z (A2SSY9)
4.D.2.1.3









Lysyl phosphatidyl glycerol synthetase

Archaea
Euryarchaeota
Lysyl-PG synthetase of Archaeoglobus veneficus (F2KRG7)
4.D.2.1.4









TerC of 326aas and 10 TMSs

Bacteria
Bacillota
TerC of Selenomonas sp. oral taxon 149 (E0NY51)
4.D.2.1.5









Putative ABC transporter (348 aas; 8 TMSs)

Bacteria
Bacillota
Putative ABC transporter of Eubacterium yurii (E0QJ98)
4.D.2.1.6









Putative family 2 glycosyl transferase (538 aas; 8 putative TMSs), This protein is designated DPG synthase. Residues 1-220 are in the COGO392 or UPF0108 superfamily while residues 221-538 are in the lysyl phosphatidyl glycerol synthetase domain family). The N-terminal domain of 3.A.3.4.3 (e-8) and an N-terminal domain of 4.D.1.1.3 (e-5) are part of the MFS, but the common domain in TC family 4.D.2 is the lysyl phosphatidyl glycerol synthetase domain.

Archaea
Euryarchaeota
ORF of Archaeoglobus veneficus (F2KQZ0)
4.D.2.1.7









Putative transporter of 348 aas and 8 TMSs.  Is encoded together with and probably functions with the ABC transporter TC# 3.A.1.147.6.

Bacteria
Bacillota
Putaqtive transporter of Clostridium difficile
4.D.2.1.8









UPF0104 family protein of 387 aas and 7 TMSs.

Bacteria
Mycoplasmatota
UPF0104 protein of Ureaplasma parvum
4.D.2.1.9









Glycosyl transferase family 2 (GT2; N-terminal) - GtrA 4 TMS domain (C-terminal) protein of 384 aas and 4 - 7 TMSs.

Bacteria
Candidatus Zambryskibacteria
GT2-GtrA protein of Candidatus Zambryskibacteria bacterium
4.D.2.1.10









UPF0104 family protein of 345 aas and 9 or 10 TMSs, in a 5 or 6 + 4 TMS arrangement. Shows extensive similarity to the MFS domains of TC# 3.A.3.4.3 and 4.H.1.2.1.

Bacteria
Chloroflexota
UPF0104 protein of Chloroflexi bacterium
4.D.2.2.1









Uncharacterized protein of 344 aas with 1 N-terminal TMS and 3 C-terminal TMSs.

Archaea
Euryarchaeota
HP of Haloarcula marismotui (Q5UXW9)
4.D.2.2.2









Pych_15620 (330aas; 8 TMSs) (Most resembles 4.D.2.2.1 and 4.D.2.1.2).

Archaea
Euryarchaeota
Pych_15620 of Pyrococcus yayanosii (F8AGU2)
4.D.2.2.3









Uncharacterized protein of 331 aas and 8 TMSs.

Bacteria
Bdellovibrionota
UP of Bdellovibrio bacteriovorus
4.D.2.2.4









Uncharacterized protein of 335 aas and 8 probable TMSs in a 2 + 2 + 4  arrangement.

Archaea
Euryarchaeota
UP of Methanobacterium subterraneum
4.D.2.2.5









Uncharacterized flippase-like domain-containing protein of 243 aas and 8 TM

Archaea
Euryarchaeota
UP of Thermococcus sp. 4557
4.D.2.3.1









Sros_7630 (353aas; 8-9 TMSs) (UPF0164 Superfamily)

Bacteria
Actinomycetota
Sros_7630 of Streptosporangium roseum (D2ARG4)
4.D.2.4.1









Rv0204c (412aas; 8 putative TMSs). May be part of a heme iron acquisition system (Tullius et al. 2011).

Bacteria
Actinomycetota
Rv0204c of Mycobacterium tuberculosis (O53655)
4.D.2.4.2









Varpa_1810 (335aas; 8 TMSs) (TMSs 1-7 resemble TMSs 1-7 of 2.A.1.3.47) (e-10) and 2.A.1.3.44 (e-9) of the MFS).

Bacteria
Pseudomonadota
Varpa_1810 of Variovorax paradoxus (E6V6R4)
4.D.2.4.3









YbhN of 318 aas and 8 TMSs

Bacteria
Pseudomonadota
YbhN of E. coli
4.D.2.4.4









Uncharaterized protein of 377 aas and 8 TMSs.

Bacteria
Actinomycetota
UP of Acidithrix ferrooxidans
4.D.2.5.1









Cagg_0771 (348aas; 8 TMSs). Shows extensive sequence similarity to 3.A.3.4.3 (N-terminal 300aas; first ~8 TMSs before the ATPase domain) and 2.A.1.3.43 (C-terminal 300aas; last 8 TMSs).

Bacteria
Chloroflexota
Cagg_0771 of Chloroflexus aggregans (B8G562)
4.D.2.5.2









Osct_1517 (341aas; 8 TMSs in a 5+3 arrangement like several of those cited above). (Resembles 4.D.2.1.3 and 6 in addition to 3.A.3.4.3 and 2.A.1.3.43)

Bacteria
Chloroflexota
Osct_1517 of Oscillochloris trichoides (E1IDW6)
4.D.2.5.3









Flippase-like domain-containing protein of 370 aas and 8 TMSs in a 5 + 3 TMS arrangement.

Bacteria
Chloroflexota
Flippase of Anaerolinea thermophila