5LQ1

1.41 A resolution structure of PtxB from Trichodesmium erythraeum IMS101 in complex with methylphosphonate

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Phosphonate ABC transporter, periplasmic phosphonate-binding protein	polymer	280	31173.4	2	UniProt (Q119I9) Pfam (PF12974) In PDB	Trichodesmium erythraeum IMS101
2	A, B	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
3	A, B	METHYLPHOSPHONIC ACID ESTER GROUP	non-polymer		96.0	2	Chemie (GB)
4	A	1,2-ETHANEDIOL	non-polymer		62.1	1	Chemie (EDO)
5		water	water		18.0	213	Chemie (HOH)

Sequence modifications

A, B: 2 - 272 (UniProt: Q119I9)

PDB	External Database	Details
Met 1	-	initiating methionine
Leu 273	-	expression tag
Glu 274	-	expression tag
His 275	-	expression tag
His 276	-	expression tag
His 277	-	expression tag
His 278	-	expression tag
His 279	-	expression tag
His 280	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	62346.9
Non-Polymers*	Number of molecules	7
	Total formula weight	351.3
All*	Total formula weight	62698.2

*Water molecules are not included.