8AZK

Bovine 20S proteasome, untreated

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	J, X	Proteasome subunit beta type-3	polymer	205	22954.9	2	UniProt (P33672) Pfam (PF00227) In PDB	Bos taurus (cattle)	Proteasome chain 13,Proteasome component C10-II,Proteasome theta chain
2	A, O	Proteasome subunit alpha type-6	polymer	246	27432.5	2	UniProt (Q2YDE4) Pfam (PF10584) Pfam (PF00227) In PDB	Bos taurus (cattle)
3	B, P	Proteasome subunit alpha type-2	polymer	233	25796.3	2	UniProt (Q3T0Y5) Pfam (PF10584) Pfam (PF00227) In PDB	Bos taurus (cattle)
4	C, Q	Proteasome subunit alpha type-4	polymer	261	29525.8	2	UniProt (Q3ZCK9) Pfam (PF10584) Pfam (PF00227) In PDB	Bos taurus (cattle)
5	D, R	Proteasome subunit alpha type-7	polymer	248	27929.9	2	UniProt (Q3ZBG0) Pfam (PF00227) Pfam (PF10584) In PDB	Bos taurus (cattle)
6	E, S	Proteasome subunit alpha type-5	polymer	241	26494.0	2	UniProt (Q5E987) Pfam (PF10584) Pfam (PF00227) In PDB	Bos taurus (cattle)
7	F, T	Proteasome subunit alpha type-1	polymer	263	29595.6	2	UniProt (Q3T0X5) Pfam (PF10584) Pfam (PF00227) In PDB	Bos taurus (cattle)
8	G, U	Proteasome subunit alpha type-3	polymer	254	28338.1	2	UniProt (Q58DU5) Pfam (PF10584) Pfam (PF00227) In PDB	Bos taurus (cattle)
9	H, V	Proteasome subunit beta type-6	polymer	205	21921.8	2	UniProt (Q3MHN0) Pfam (PF00227) In PDB	Bos taurus (cattle)
10	I, W	Proteasome subunit beta type-7	polymer	234	25351.0	2	UniProt (Q2TBP0) Pfam (PF00227) Pfam (PF12465) In PDB	Bos taurus (cattle)
11	K, Y	Proteasome subunit beta type-2	polymer	201	22864.3	2	UniProt (Q5E9K0) Pfam (PF00227) In PDB	Bos taurus (cattle)
12	L, Z	Proteasome subunit beta type-5	polymer	204	22484.4	2	UniProt (Q32KL2) Pfam (PF00227) In PDB	Bos taurus (cattle)
13	M, 1	Proteasome subunit beta type-1	polymer	213	23579.0	2	UniProt (Q2TBX6) Pfam (PF00227) In PDB	Bos taurus (cattle)
14	N, 2	Proteasome subunit beta type-4	polymer	219	24402.7	2	UniProt (Q3T108) Pfam (PF00227) In PDB	Bos taurus (cattle)

Sequence modifications

J, X: 1 - 205 (UniProt: P33672)

PDB	External Database	Details
Leu 34	Met 34	conflict
Ala 143	Thr 143	conflict
Asp 161	Glu 161	conflict

D, R: 1 - 248 (UniProt: Q3ZBG0)

PDB	External Database	Details
Arg 38	Lys 38	conflict
Ser 216	Pro 216	conflict

E, S: 1 - 241 (UniProt: Q5E987)

PDB	External Database	Details
Asp 27	Ala 27	conflict
Leu 184	Val 184	conflict

F, T: 1 - 263 (UniProt: Q3T0X5)

PDB	External Database	Details
Ala 247	Thr 247	conflict

G, U: 1 - 254 (UniProt: Q58DU5)

PDB	External Database	Details
Ile 189	Val 190	conflict
Leu 219	Ile 220	conflict
Ile 231	Val 232	conflict

H, V: 1 - 205 (UniProt: Q3MHN0)

PDB	External Database	Details
Ser 124	Pro 158	conflict
Ser 182	Pro 216	conflict
Ala 198	Thr 232	conflict
Val 199	Ile 233	conflict
Ala 205	Leu 239	conflict

I, W: 1 - 234 (UniProt: Q2TBP0)

PDB	External Database	Details
Arg 91	Gln 134	conflict
Asn 153	Lys 196	conflict
Asn 181	Ser 224	conflict
Thr 190	Ser 233	conflict
Leu 199	Phe 242	conflict
Thr 209	Asn 252	conflict
Ile 216	Val 259	conflict
Pro 218	Thr 261	conflict

K, Y: 1 - 201 (UniProt: Q5E9K0)

PDB	External Database	Details
Cys 91	Tyr 91	conflict
Arg 155	Lys 155	conflict
Lys 185	Arg 185	conflict

L, Z: 1 - 204 (UniProt: Q32KL2)

PDB	External Database	Details
Gln 151	Glu 210	conflict
Ala 173	Ser 232	conflict
Asn 175	Ser 234	conflict
Glu 197	Asp 256	conflict
Pro 204	His 263	conflict

M, 1: 1 - 213 (UniProt: Q2TBX6)

PDB	External Database	Details
Val 6	Ala 34	conflict
Ile 12	Val 40	conflict
Ala 21	Ser 49	conflict
Arg 194	Lys 222	conflict
Ile 195	Val 223	conflict
Glu 205	Gly 233	conflict
Ser 209	Pro 237	conflict

N, 2: 1 - 219 (UniProt: Q3T108)

PDB	External Database	Details
Val 14	Leu 59	conflict
Arg 86	Lys 131	conflict
Asp 167	Glu 212	conflict
Thr 189	Ile 234	conflict
Thr 205	Ala 250	conflict

Contents of the asymmetric unit

Polymers	Number of chains	28
	Total formula weight	717340.6
All*	Total formula weight	717340.6

*Water molecules are not included.