1OED

STRUCTURE OF ACETYLCHOLINE RECEPTOR PORE FROM ELECTRON IMAGES

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D	Acetylcholine receptor subunit alpha	polymer	227	25389.0	2	UniProt (P02711) Pfam (PF02932) In PDB	Torpedo marmorata (Marbled electric ray)
2	B	Acetylcholine receptor beta subunit	polymer	250	28387.3	1	UniProt (Q6S3I0) Pfam (PF02932) UniProt (by SIFTS) (P02712) In PDB	Torpedo marmorata (Marbled electric ray)
3	C	Acetylcholine receptor delta subunit	polymer	260	29371.1	1	UniProt (Q6S3H8) Pfam (PF02932) UniProt (by SIFTS) (P02718) In PDB	Torpedo marmorata (Marbled electric ray)
4	E	Acetylcholine receptor gamma subunit	polymer	260	29321.6	1	UniProt (Q6S3H9) Pfam (PF02932) UniProt (by SIFTS) (P02714) In PDB	Torpedo marmorata (Marbled electric ray)

Sequence modifications

A, D: 211 - 437 (UniProt: P02711)

PDB	External Database	Details
Gly 230	Val 254	variant
Ile 291	Val 315	variant
Asp 318	Asn 342	variant

B: 217 - 466 (UniProt: Q6S3I0)

PDB	External Database	Details
Ile 226	Val 250	variant
Val 259	Leu 283	variant
Arg 282	Ser 306	variant
Val 442	Ile 466	variant
Phe 444	Ile 468	variant
Val 445	Thr 469	variant
Ile 446	Met 470	variant

C: 225 - 484 (UniProt: Q6S3H8)

PDB	External Database	Details
Ser 244	Ala 265	variant
Ser 262	Cys 283	variant
Ile 303	Val 324	variant
Ala 343	Val 364	variant
Ser 346	Ile 367	variant
His 480	Arg 501	variant

E: 219 - 478 (UniProt: Q6S3H9)

PDB	External Database	Details
Met 295	Leu 311	variant
Leu 296	Val 312	variant
Met 299	Thr 315	variant
Gly 327	Glu 343	variant
Gln 336	His 352	variant
Ile 461	Leu 477	variant
Phe 472	Leu 488	variant

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	137857.9
All*	Total formula weight	137857.9

*Water molecules are not included.