5AFF

Symportin 1 chaperones 5S RNP assembly during ribosome biogenesis by occupying an essential rRNA binding site

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	SYMPORTIN 1	polymer	654	72162.1	1	UniProt (G0S5S6) In PDB	CHAETOMIUM THERMOPHILUM
2	B	RIBOSOMAL PROTEIN L5	polymer	48	6060.1	1	UniProt (G0SEG2) In PDB	CHAETOMIUM THERMOPHILUM
3	C	RIBOSOMAL PROTEIN L11	polymer	173	20119.3	1	UniProt (G0SHQ2) Pfam (PF00281) Pfam (PF00673) In PDB	CHAETOMIUM THERMOPHILUM

Sequence modifications

A: 24 - 676 (UniProt: G0S5S6)

PDB	External Database	Details
Met 23	-	expression tag

B: 1 - 40 (UniProt: G0SEG2)

PDB	External Database	Details
Met -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	98341.5
All*	Total formula weight	98341.5

*Water molecules are not included.