2WYP

Crystal structure of sialic acid binding protein

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	SIALIC ACID-BINDING PERIPLASMIC PROTEIN SIAP	polymer	312	35075.6	1	UniProt (P44542) Pfam (PF03480) In PDB	HAEMOPHILUS INFLUENZAE	N-ACETYLNEURAMINIC-BINDING PROTEIN, NEU5AC-BINDING PROTEIN, EXTRACYTOPLASMIC SOLUTE RECEPTOR PROTEIN SIAP
2	A	deamino-beta-neuraminic acid	non-polymer		268.2	1	Chemie (KDN)
3		water	water		18.0	405	Chemie (HOH)

Sequence modifications

A: 1 - 306 (UniProt: P44542)

PDB	External Database	Details
Asn 11	Ala 34	engineered mutation
His 307	-	expression tag
His 308	-	expression tag
His 309	-	expression tag
His 310	-	expression tag
His 311	-	expression tag
His 312	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	35075.6
Non-Polymers*	Number of molecules	1
	Total formula weight	268.2
All*	Total formula weight	35343.9

*Water molecules are not included.