4HH3

Structure of the AppA-PpsR2 core complex from Rb. sphaeroides

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Transcriptional regulator, PpsR	polymer	262	28835.1	2	UniProt (Q3J179) Pfam (PF13426) In PDB	Rhodobacter sphaeroides (Rhodopseudomonas sphaeroides)
2	C	AppA protein	polymer	240	25480.3	1	UniProt (Q53119) Pfam (PF21961) Pfam (PF21966) In PDB	Rhodobacter sphaeroides (Rhodopseudomonas sphaeroides)
3		water	water		18.0	683	Chemie (HOH)

Sequence modifications

A, B: 2 - 257 (UniProt: Q3J179)

PDB	External Database	Details
Gly -4	-	expression tag
Ala -3	-	expression tag
Met -2	-	expression tag
Gly -1	-	expression tag
Met 0	-	expression tag
Gly 1	-	expression tag

C: 168 - 399 (UniProt: Q53119)

PDB	External Database	Details
Ser 399	Cys 399	engineered mutation
Ser 400	-	expression tag
Ala 401	-	expression tag
His 402	-	expression tag
His 403	-	expression tag
His 404	-	expression tag
His 405	-	expression tag
His 406	-	expression tag
His 407	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	83150.6
All*	Total formula weight	83150.6

*Water molecules are not included.