1RYP

CRYSTAL STRUCTURE OF THE 20S PROTEASOME FROM YEAST AT 2.4 ANGSTROMS RESOLUTION

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, O	20S PROTEASOME	polymer	243	27316.0	2	UniProt (P21243) Pfam (PF10584) Pfam (PF00227) In PDB	Saccharomyces cerevisiae (baker's yeast)
2	B, P	20S PROTEASOME	polymer	250	27191.8	2	UniProt (P23639) Pfam (PF10584) Pfam (PF00227) In PDB	Saccharomyces cerevisiae (baker's yeast)
3	C, Q	20S PROTEASOME	polymer	244	27050.4	2	UniProt (P23638) Pfam (PF10584) Pfam (PF00227) In PDB	Saccharomyces cerevisiae (baker's yeast)
4	D, R	20S PROTEASOME	polymer	241	26903.3	2	UniProt (P40303) Pfam (PF00227) Pfam (PF10584) In PDB	Saccharomyces cerevisiae (baker's yeast)
5	E, S	20S PROTEASOME	polymer	242	26544.8	2	UniProt (P32379) Pfam (PF10584) Pfam (PF00227) In PDB	Saccharomyces cerevisiae (baker's yeast)
6	F, T	20S PROTEASOME	polymer	233	25502.8	2	UniProt (P40302) Pfam (PF10584) Pfam (PF00227) In PDB	Saccharomyces cerevisiae (baker's yeast)
7	G, U	20S PROTEASOME	polymer	244	26892.5	2	UniProt (P21242) Pfam (PF10584) Pfam (PF00227) In PDB	Saccharomyces cerevisiae (baker's yeast)
8	H, V	20S PROTEASOME	polymer	205	22401.3	2	UniProt (P38624) Pfam (PF00227) In PDB	Saccharomyces cerevisiae (baker's yeast)
9	I, W	20S PROTEASOME	polymer	222	23987.3	2	UniProt (P25043) Pfam (PF00227) Pfam (PF12465) In PDB	Saccharomyces cerevisiae (baker's yeast)
10	J, X	20S PROTEASOME	polymer	204	22496.6	2	UniProt (P25451) Pfam (PF00227) In PDB	Saccharomyces cerevisiae (baker's yeast)
11	K, Y	20S PROTEASOME	polymer	198	22545.7	2	UniProt (P22141) Pfam (PF00227) In PDB	Saccharomyces cerevisiae (baker's yeast)
12	L, Z	20S PROTEASOME	polymer	212	23353.3	2	UniProt (P30656) Pfam (PF00227) In PDB	Saccharomyces cerevisiae (baker's yeast)
13	M, 1	20S PROTEASOME	polymer	222	24883.9	2	UniProt (P23724) Pfam (PF00227) In PDB	Saccharomyces cerevisiae (baker's yeast)
14	N, 2	20S PROTEASOME	polymer	233	25945.5	2	UniProt (P30657) Pfam (PF00227) In PDB	Saccharomyces cerevisiae (baker's yeast)
15	A, E, G, H, I...	MAGNESIUM ION	non-polymer		24.3	20	Chemie (MG)
16		water	water		18.0	2908	Chemie (HOH)

Sequence modifications

H, V: -9 - 196 (UniProt: P38624)

PDB	External Database	Details
Ala 1	Thr 20	conflict

L, Z: 1 - 212 (UniProt: P30656)

PDB	External Database	Details
Arg 33	Lys 108	conflict

Contents of the asymmetric unit

Polymers	Number of chains	28
	Total formula weight	706030.4
Non-Polymers*	Number of molecules	20
	Total formula weight	486.1
All*	Total formula weight	706516.5

*Water molecules are not included.