| ABC transporter transmembrane region | PFAM:PF00664 |
| ABC transporter type 1, transmembrane domain superfamily | SUPERFAMILY:SSF90123 |
| Cobalt uptake substrate-specific transmembrane region | PFAM:PF01891 |
| P-type ATPase, transmembrane domain superfamily | SUPERFAMILY:SSF81665 |
| Mechanosensitive ion channel MscS, transmembrane-2 | SUPERFAMILY:SSF82861 |
| Cyclin M transmembrane N-terminal domain | PFAM:PF01595 |
| CNNM transmembrane domain profile. | PROSITE_PROFILES:PS51846 |
| CdaA N-terminal transmembrane domain | PFAM:PF19293 |
| Cytochrome C biogenesis protein transmembrane region | PFAM:PF13386 |
| Cation efflux transmembrane domain superfamily | SUPERFAMILY:SSF161111 |
| CorA, transmembrane region | SUPERFAMILY:SSF144083 |
| Transmembrane secretion effector | PFAM:PF05977 |
| Sodium:sulfate symporter transmembrane region | PFAM:PF00939 |
| Ferric reductase like transmembrane component | PFAM:PF01794 |
| Transmembrane exosortase (Exosortase_EpsH) | PFAM:PF09721 |
| Di-haem cytochrome, transmembrane | SUPERFAMILY:SSF81342 |
| Interferon-induced transmembrane protein | PFAM:PF04505 |
| Fumarate reductase/succinate dehydrogenase, transmembrane subunit | SUPERFAMILY:SSF81343 |
| Cytochrome C oxidase subunit II, transmembrane domain | PFAM:PF02790 |
| Cytochrome C oxidase subunit II, transmembrane domain superfamily | SUPERFAMILY:SSF81464 |
| Cytochrome oxidase subunit II transmembrane region profile. | PROSITE_PROFILES:PS50999 |
| OmpA-like transmembrane domain | PFAM:PF01389 |
| Putative transmembrane protein (Alph_Pro_TM) | PFAM:PF09608 |
| Putative transmembrane protein (PGPGW) | PFAM:PF09656 |
| Succinate dehydrogenase/Fumarate reductase transmembrane subunit | PFAM:PF01127 |
| Transmembrane family 220, helix | PFAM:PF15071 |
| EccD-like transmembrane domain | PFAM:PF19053 |
| Transmembrane domain of unknown function (DUF3566) | PFAM:PF12089 |
| Transmembrane region of lysyl-tRNA synthetase | PFAM:PF16995 |
| Tryptophan-associated transmembrane protein (Trp_oprn_chp) | PFAM:PF09534 |
| 7 transmembrane helices usually fused to an inactive transglutaminase | PFAM:PF14402 |
| Inactive transglutaminase fused to 7 transmembrane helices | PFAM:PF14400 |
| ABC transporter transmembrane region 2 | PFAM:PF06472 |
| Formate dehydrogenase N, transmembrane | PFAM:PF09163 |
| Transmembrane amino acid transporter protein | PFAM:PF01490 |
| Cytochrome c1, transmembrane anchor, C-terminal | SUPERFAMILY:SSF81496 |
| Sensor N-terminal transmembrane domain | PFAM:PF13755 |
| Transmembrane domain of transglycosylase PBP1 at N-terminal | PFAM:PF14812 |
| Transmembrane protein 131-like N-terminal | PFAM:PF12371 |
| Transmembrane protein 43 | PFAM:PF07787 |
| Inward rectifier potassium channel transmembrane domain | PFAM:PF01007 |
| Neurotransmitter-gated ion-channel transmembrane domain superfamily | SUPERFAMILY:SSF90112 |
| Transmembrane proteins 14C | PFAM:PF03647 |
| Putative transmembrane family 234 | |