7A5C

Crystal structure of spin labelled VcSiaP R125A bound to an artificial peptide ligand.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Sialic acid-binding periplasmic protein SiaP	polymer	316	35954.9	2	UniProt (Q9KR64) Pfam (PF03480) In PDB	Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)
2	A, B	GLYCEROL	non-polymer		92.1	2	Chemie (GOL)
3		water	water		18.0	227	Chemie (HOH)

Sequence modifications

A, B: 1 - 299 (UniProt: Q9KR64)

PDB	External Database	Details
Asp -16	-	expression tag
Tyr -15	-	expression tag
Asp -14	-	expression tag
Ile -13	-	expression tag
Pro -12	-	expression tag
Thr -11	-	expression tag
Thr -10	-	expression tag
Glu -9	-	expression tag
Asn -8	-	expression tag
Leu -7	-	expression tag
Tyr -6	-	expression tag
Phe -5	-	expression tag
Gln -4	-	expression tag
Gly -3	-	expression tag
Ala -2	-	expression tag
Met -1	-	expression tag
Gly 0	-	expression tag
R1a 54	Gln 76	engineered mutation
Ala 125	Arg 147	engineered mutation
R1a 173	Leu 195	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	71909.7
Non-Polymers*	Number of molecules	2
	Total formula weight	184.2
All*	Total formula weight	72093.9

*Water molecules are not included.