3CSN

Structure of the Serratia marcescens hemophore receptor HasR in complex with its hemophore HasA

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)	HasR protein	polymer	865	94954.7	2	UniProt (Q79AD2) Pfam (PF07660) Pfam (PF07715) Pfam (PF00593)	Serratia marcescens
2	C, D (C, D)	Hemophore HasA	polymer	206	21523.2	2	UniProt (Q54450) Pfam (PF06438)	Serratia marcescens	Heme acquisition system protein A
3	E, F, G, H, I (A, B)	GLYCEROL	non-polymer		92.1	5	Chemie (GOL)
4	J, K, L, M (A, B, C, D)	water	water		18.0	19	Chemie (HOH)

Sequence modifications

A, B: 1 - 865 (UniProt: Q79AD2)

PDB	External Database	Details
Ala 645	Gly 679	SEE REMARK 999

C, D: 2 - 188 (UniProt: Q54450)

PDB	External Database	Details
Met -17	-	expression tag
Arg -16	-	expression tag
Gly -15	-	expression tag
Ser -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
Gly -7	-	expression tag
Ile -6	-	expression tag
Arg -5	-	expression tag
Met -4	-	expression tag
Arg -3	-	expression tag
Ala -2	-	expression tag
Arg -1	-	expression tag
Tyr 0	-	expression tag
Pro 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	232955.9
Non-Polymers*	Number of molecules	5
	Total formula weight	460.5
All*	Total formula weight	233416.4

*Water molecules are not included.