1UKO

Crystal structure of soybean beta-amylase mutant substituted at surface region

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D	Beta-amylase	polymer	495	56075.3	4	UniProt (P10538) Pfam (PF01373) In PDB	Glycine max (soybean)	1,4-alpha-D-glucan maltohydrolase
2	D, A, B, C	SULFATE ION	non-polymer		96.1	24	Chemie (SO4)
3		water	water		18.0	1461	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 495 (UniProt: P10538)

PDB	External Database	Details
Leu 76	Phe 76	SEE REMARK 999
Gly 202	Arg 202	SEE REMARK 999
Tyr 374	Asp 374	engineered mutation
Arg 399	Lys 399	SEE REMARK 999
Arg 481	Leu 481	engineered mutation
Asp 487	Pro 487	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	224301.1
Non-Polymers*	Number of molecules	24
	Total formula weight	2305.5
All*	Total formula weight	226606.6

*Water molecules are not included.