6P1C

Transcription antitermination factor Q21, SeMet-derivative

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Q protein	polymer	162	19044.0	1	UniProt (Q9XJQ6) Pfam (PF06530)	Phage 21
2	B (A)	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
3	C (A)	water	water		18.0	55	Chemie (HOH)

Sequence modifications

A: 2 - 162 (UniProt: Q9XJQ6)

PDB	External Database	Details
Ser 1	-	expression tag
Gly 24	-	insertion
Trp 26	His 25	conflict
Val 27	Gly 26	conflict
Tyr 28	Leu 27	conflict
Val 47	Ile 46	conflict

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	19044.0
Non-Polymers*	Number of molecules	1
	Total formula weight	35.5
All*	Total formula weight	19079.4

*Water molecules are not included.