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Membrane and cell surface proteins and peptides

- Colicin
- Diphtheria toxin, middle domain
- delta-Endotoxin (insectocide), N-terminal domain
- Bcl-2 inhibitors of programmed cell death
- Exotoxin A, middle domain
- Bacteriorhodopsin-like
- Rhodopsin-like
- Photosystem II reaction centre subunit H, transmembrane region
- Mitochondrial cytochrome c oxidase subunit IV
- Mitochondrial cytochrome c oxidase subunit VIa
- Mitochondrial cytochrome c oxidase subunit VIc
- Mitochondrial cytochrome c oxidase subunit VIIa
- Mitochondrial cytochrome c oxidase subunit VIIb
- Mitochondrial cytochrome c oxidase subunit VIIc (aka VIIIa)
- Mitochondrial cytochrome c oxidase subunit VIIIb (aka IX)
- Bacterial aa3 type cytochrome c oxidase subunit IV
- Bacterial ba3 type cytochrome c oxidase subunit IIa
- F1F0 ATP synthase subunit B, membrane domain
- Cytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor
- ISP transmembrane anchor
- Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
- Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
- Subunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
- Subunit III of photosystem I reaction centre, PsaF
- Subunit VIII of photosystem I reaction centre, PsaI
- Subunit IX of photosystem I reaction centre, PsaJ
- Subunit XII of photosystem I reaction centre, PsaM
- Subunit PsaX of photosystem I reaction centre
- Iron-sulfur subunit of formate dehydrogenase N, transmembrane anchor
- Cytochrome f subunit of the cytochrome b6f complex, transmembrane anchor
- PetL subunit of the cytochrome b6f complex
- PetM subunit of the cytochrome b6f complex
- PetG subunit of the cytochrome b6f complex
- PetN subunit of the cytochrome b6f complex
- Preprotein translocase SecE subunit
- Sec-beta subunit
- Oligosaccharyltransferase subunit ost4p
- PsbL-like
- PsbJ-like
- PsbH-like
- PsbT-like
- PsbM-like
- PsbK-like
- PsbI-like
- Cytochrome b559 subunits
- Bacterial photosystem II reaction centre, L and M subunits
- Cytochrome c oxidase subunit I-like
- Cytochrome c oxidase subunit III-like
- Cytochrome c oxidase subunit II-like, transmembrane region
- F1F0 ATP synthase subunit C
- Magnesium transport protein CorA, transmembrane region
- Htr2 transmembrane domain-like
- PsbZ-like
- F1F0 ATP synthase subunit A
- ATP synthase B chain-like
- ATP synthase D chain-like
- Aquaporin-like
- Ammonium transporter
- Glycerol-3-phosphate transporter
- LacY-like proton/sugar symporter
- SNF-like
- Proton glutamate symport protein
- Clc chloride channel
- Voltage-gated potassium channels
- Small-conductance potassium channel
- Gated mechanosensitive channel
- Neurotransmitter-gated ion-channel transmembrane pore
- Mechanosensitive channel protein MscS (YggB), transmembrane region
- Multidrug resistance efflux transporter EmrE
- V-type ATP synthase subunit C
- Preprotein translocase SecY subunit
- Photosystem I subunits PsaA/PsaB
- Photosystem I reaction center subunit X, PsaK
- Photosystem I reaction center subunit XI, PsaL
- ABC transporter involved in vitamin B12 uptake, BtuC
- ABC transporter transmembrane region
- Multidrug efflux transporter AcrB transmembrane domain
- a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
- Cytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
- Formate dehydrogenase N, cytochrome (gamma) subunit
- Respiratory nitrate reductase 1 gamma chain
- Fumarate reductase respiratory complex cytochrome b subunit, FrdC
- Succinate dehydrogenase/Fumarate reductase transmembrane subunits (SdhC/FrdC and SdhD/FrdD)
- 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
- Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)
- Mitochondrial ATP synthase coupling factor 6
- Calcium ATPase, transmembrane domain M
- Light-harvesting complex subunits
- Photosystem II antenna protein-like
- Mitochondrial carrier
- Chlorophyll a-b binding protein
- MAPEG domain
- MgtE membrane domain-like
- MetI-like
- Rhomboid-like
- Cation efflux protein transmembrane domain-like
- Connexin43
- Outer membrane protein
- Outer membrane enzyme PagP
- GNA1870 immunodominant domain-like
- PsbO-like
- Outer membrane protease OMPT
- Outer membrane adhesin/invasin OpcA
- Autotransporter
- Outer membrane phospholipase A (OMPLA)
- Porin
- Maltoporin-like
- Ligand-gated protein channel
- Outer membrane protein transport protein
- Tsx-like channel
- Outer membrane efflux proteins (OEP)
- HlyD-like secretion proteins
- Leukocidin (pore-forming toxin)
- Porin MspA
- Lipovitellin-phosvitin complex; beta-sheet shell regions
- (Pro)aerolysin, pore-forming lobe
- ETX/MTX2
- Perfringolysin
- Viral glycoprotein, central and dimerisation domains
- VP4 membrane interaction domain
- Head and neck region of the ectodomain of NDV fusion glycoprotein
- OmpH-like
- Anthrax protective antigen