4HLN

Structure of barley starch synthase I in complex with maltooligosaccharide

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Starch synthase I	polymer	633	69897.1	1	UniProt (Q9M5A3) Pfam (PF08323) Pfam (PF00534)	Hordeum vulgare (barley)
2	B (B)	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	branched		828.7	1	In PDB BIRD (PRD_900030) GlyTouCan (G50146AM)		alpha-maltopentaose
3	C (A)	water	water		18.0	23	Chemie (HOH)

Sequence modifications

A: 1 - 612 (UniProt: Q9M5A3)

PDB	External Database	Details
Met -20	-	expression tag
Gly -19	-	expression tag
Ser -18	-	expression tag
Ser -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
Ser -10	-	expression tag
Ser -9	-	expression tag
Gly -8	-	expression tag
Leu -7	-	expression tag
Val -6	-	expression tag
Pro -5	-	expression tag
Arg -4	-	expression tag
Gly -3	-	expression tag
Ser -2	-	expression tag
His -1	-	expression tag
Met 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	69897.1
Branched	Number of molecules	1
	Total formula weight	828.7
All*	Total formula weight	70725.8

*Water molecules are not included.