1YX4

Structure of S5a bound to monoubiquitin provides a model for polyubiquitin recognition

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	26S proteasome non-ATPase regulatory subunit 4	polymer	132	14360.6	1	UniProt (P55036) Pfam (PF02809) In PDB	Homo sapiens (human)	26S proteasome regulatory subunit S5A, Rpn10, Multiubiquitin chain binding protein, Antisecretory factor-1, AF, ASF

Sequence modifications

A: -2 - 112 (UniProt: P55036)

PDB	External Database	Details
Met -19	-	cloning artifact
Gly -18	-	cloning artifact
His -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
Ser -7	-	cloning artifact
Ser -6	-	cloning artifact
Gly -5	-	cloning artifact
His -4	-	cloning artifact
Ile -3	-	cloning artifact
Arg 0	Gly 194	cloning artifact
His 1	Ala 195	cloning artifact

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	14360.6
All*	Total formula weight	14360.6

*Water molecules are not included.