4HMQ

Crystal structure of streptococcus pneumoniae TIGR4 PiaA in complex with ferrichrome

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Iron-compound ABC transporter, iron compound-binding protein	polymer	328	36280.1	2	UniProt (Q97R09) Pfam (PF01497) UniProt (by SIFTS) (A0A0H2UPT5)	Streptococcus pneumoniae
2	C, S (A, B)	FERRICHROME	non-polymer		740.5	2	Chemie (FCE)
3	AA, BA, CA, D, DA... (B, A)	CADMIUM ION	non-polymer		112.4	24	Chemie (CD)
4	GA, HA, O (B, A)	CHLORIDE ION	non-polymer		35.5	3	Chemie (CL)
5	IA, JA, KA, P, Q (B, A)	1,2-ETHANEDIOL	non-polymer		62.1	5	Chemie (EDO)
6	LA, R (B, A)	TRIETHYLENE GLYCOL	non-polymer		150.2	2	Chemie (PGE)
7	MA, NA (A, B)	water	water		18.0	448	Chemie (HOH)

Sequence modifications

A, B: 23 - 341 (UniProt: Q97R09)

PDB	External Database	Details
Met 14	-	expression tag
Gly 15	-	expression tag
His 16	-	expression tag
His 17	-	expression tag
His 18	-	expression tag
His 19	-	expression tag
His 20	-	expression tag
His 21	-	expression tag
Met 22	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	72560.2
Non-Polymers*	Number of molecules	36
	Total formula weight	4895.9
All*	Total formula weight	77456.2

*Water molecules are not included.