5U51

Structure of Francisella tularensis heterodimeric SspA (MglA-SspA) in complex with ppGpp

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (C, D)	Stringent starvation protein A	polymer	211	24110.1	2	UniProt (A0A0E2ZL39) Pfam (PF13417) Pfam (PF00043) UniProt (by SIFTS) (Q5NHJ6)	Francisella tularensis
2	B, D (A, B)	Macrophage growth locus A	polymer	204	23594.5	2	UniProt (A0A0E2ZLH6) Pfam (PF13409) Pfam (PF22420) UniProt (by SIFTS) (Q5NFG1)	Francisella tularensis
3	E, F, G, H, L (C, A)	GLYCEROL	non-polymer		92.1	5	Chemie (GOL)
4	I, N (C, B)	PENTAETHYLENE GLYCOL	non-polymer		238.3	2	Chemie (1PE)
5	J, O (C, B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
6	K, M (A, B)	GUANOSINE-5',3'-TETRAPHOSPHATE	non-polymer		603.2	2	Chemie (G4P)
7	P, Q, R, S (C, A, D, B)	water	water		18.0	43	Chemie (HOH)

Sequence modifications

C, D: 4 - 210 (UniProt: A0A0E2ZL39)

PDB	External Database	Details
Ser 0	-	expression tag
Asn 1	-	expression tag
Ala 2	-	expression tag
Met 3	-	expression tag

A, B: 1 - 201 (UniProt: A0A0E2ZLH6)

PDB	External Database	Details
Ser -2	-	expression tag
Asn -1	-	expression tag
Ala 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	95409.2
Non-Polymers*	Number of molecules	11
	Total formula weight	2192.0
All*	Total formula weight	97601.2

*Water molecules are not included.