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Reviewed, UniProtKB/Swiss-Prot P10538 (AMYB_SOYBN)

Last modified February 9, 2010. Version 87. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (3) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents

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Names and origin

Protein namesRecommended name:
    Beta-amylase
    EC=3.2.1.2
Alternative name(s):
    1,4-alpha-D-glucan maltohydrolase
Gene names
Name: BMY1
OrganismGlycine max (Soybean)
Taxonomic identifier3847 [NCBI]
Taxonomic lineageEukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliophyta › eudicotyledons › core eudicotyledons › rosids › fabids › Fabales › Fabaceae › Papilionoideae › Phaseoleae › Glycine

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Protein attributes

Sequence length496 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceEvidence at protein level.

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General annotation (Comments)

Catalytic activity

Hydrolysis of (1->4)-alpha-D-glucosidic linkages in polysaccharides so as to remove successive maltose units from the non-reducing ends of the chains.

Subunit structure

Monomer.

Sequence similarities

Belongs to the glycosyl hydrolase 14 family.

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Ontologies

Keywords
   Biological processCarbohydrate metabolism
Polysaccharide degradation
   Molecular functionGlycosidase
Hydrolase
   PTMAcetylation
   Technical term3D-structure
Direct protein sequencing
Gene Ontology (GO)
   Biological processpolysaccharide catabolic process

Inferred from electronic annotation. Source: UniProtKB-KW

   Molecular functionbeta-amylase activity

Inferred from electronic annotation. Source: EC

cation binding

Inferred from electronic annotation. Source: InterPro

Complete GO annotation...

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Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Initiator methionine11Removed Ref.4
Chain2 – 496495Beta-amylase
PRO_0000153938

Sites

Active site1871 Ref.5 Ref.6
Active site3811 Ref.6

Amino acid modifications

Modified residue21N-acetylalanine Ref.4

Experimental info

Mutagenesis1021D → N or E: Loss of activity.
Mutagenesis1871E → Q or D: Loss of activity.
Sequence conflict91L → G AA sequence Ref.4
Sequence conflict184 – 1907PAGELRY → QQESSDT in AAA33941. Ref.3
Sequence conflict2031R → G in AAA33941. Ref.3
Sequence conflict4001K → R in AAA33941. Ref.3
Sequence conflict473 – 4742VL → FF Ref.3
Sequence conflict475 – 49622Missing Ref.3

Secondary structure

1 ............................................................................... 496
Helix Strand Turn

Details...

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Sequences

Sequence LengthMass (Da)Tools
P10538-1 [UniParc].

Last modified January 23, 2007. Version 3.
Checksum: FB87917244FEF798

FASTA49656,143
        10         20         30         40         50         60 
MATSDSNMLL NYVPVYVMLP LGVVNVDNVF EDPDGLKEQL LQLRAAGVDG VMVDVWWGII 

        70         80         90        100        110        120 
ELKGPKQYDW RAYRSLFQLV QECGLTLQAI MSFHQCGGNV GDIVNIPIPQ WVLDIGESNH 

       130        140        150        160        170        180 
DIFYTNRSGT RNKEYLTVGV DNEPIFHGRT AIEIYSDYMK SFRENMSDFL ESGLIIDIEV 

       190        200        210        220        230        240 
GLGPAGELRY PSYPQSQGWE FPRIGEFQCY DKYLKADFKA AVARAGHPEW ELPDDAGKYN 

       250        260        270        280        290        300 
DVPESTGFFK SNGTYVTEKG KFFLTWYSNK LLNHGDQILD EANKAFLGCK VKLAIKVSGI 

       310        320        330        340        350        360 
HWWYKVENHA AELTAGYYNL NDRDGYRPIA RMLSRHHAIL NFTCLEMRDS EQPSDAKSGP 

       370        380        390        400        410        420 
QELVQQVLSG GWREDIRVAG ENALPRYDAT AYNQIILNAK PQGVNNNGPP KLSMFGVTYL 

       430        440        450        460        470        480 
RLSDDLLQKS NFNIFKKFVL KMHADQDYCA NPQKYNHAIT PLKPSAPKIP IEVLLEATKP 

       490 
TLPFPWLPET DMKVDG

« Hide

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References

[1]"Expression and mutation of soybean beta-amylase in Escherichia coli."
Totsuka A., Fukazawa C.
Eur. J. Biochem. 214:787-794(1993) [PubMed: 8319688] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
[2]"Primary structure and function of beta-amylase."
Mikami B., Morita Y., Fukazawa C.
Seikagaku 60:211-216(1988) [PubMed: 2457058] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
[3]"Nucleotide and deduced protein sequence of beta-amylase."
Ehrlich K.C., Montalbano B.G.
Submitted (AUG-1992) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
[4]"N-terminal sequence of soybean beta-amylase."
Mikami B., Nomura K., Morita Y.
J. Biochem. 100:513-516(1986) [PubMed: 2430952] [Abstract]
Cited for: PROTEIN SEQUENCE OF 2-10.
[5]"Identification of glutamic acid 186 affinity-labeled by 2,3-epoxypropyl alpha-D-glucopyranoside in soybean beta-amylase."
Nitta Y., Isoda Y., Toda H., Sakiyama F.
J. Biochem. 105:573-576(1989) [PubMed: 2474529] [Abstract]
Cited for: ACTIVE SITE GLU-187.
[6]"Residues essential for catalytic activity of soybean beta-amylase."
Totsuka A., Nong V.H., Kadokawa H., Kim C.-S., Itoh Y., Fukazawa C.
Eur. J. Biochem. 221:649-654(1994) [PubMed: 8174545] [Abstract]
Cited for: ACTIVE SITES, MUTAGENESIS.
[7]"Three-dimensional structure of soybean beta-amylase determined at 3.0-A resolution: preliminary chain tracing of the complex with alpha-cyclodextrin."
Mikami B., Sato M., Shibata T., Hirose M., Aibara S., Katsube Y., Morita Y.
J. Biochem. 112:541-546(1992) [PubMed: 1491009] [Abstract]
Cited for: X-RAY CRYSTALLOGRAPHY (3.0 ANGSTROMS).
[8]"The 2.0-A resolution structure of soybean beta-amylase complexed with alpha-cyclodextrin."
Mikami B., Hehre E.J., Sato M., Katsube Y., Hirose M., Morita Y., Sacchettini J.C.
Biochemistry 32:6836-6845(1993) [PubMed: 8334116] [Abstract]
Cited for: X-RAY CRYSTALLOGRAPHY (2.0 ANGSTROMS).
[9]"Crystal structures of soybean beta-amylase reacted with beta-maltose and maltal: active site components and their apparent roles in catalysis."
Mikami B., Degano M., Hehre E.J., Sacchettini J.C.
Biochemistry 33:7779-7787(1994) [PubMed: 8011643] [Abstract]
Cited for: X-RAY CRYSTALLOGRAPHY (1.9 ANGSTROMS).
[10]"Crystal structure of recombinant soybean beta-amylase complexed with beta-cyclodextrin."
Adachi M., Mikami B., Katsube T., Utsumi S.
J. Biol. Chem. 273:19859-19865(1998) [PubMed: 9677422] [Abstract]
Cited for: X-RAY CRYSTALLOGRAPHY (2.07 ANGSTROMS).
+Additional computationally mapped references.

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Cross-references

Sequence databases

EMBL
GenBank
DDBJ		X71419 mRNA. Translation: CAA50551.1.
M92090 mRNA. Translation: AAA33941.1.
PIRA60473. A29291.
UniGeneGma.595

3D structure databases

PDBe
RCSB PDB
PDBj
EntryMethodResolution (Å)ChainPositionsPDBsum
1BFNX-ray2.07A2-496[»]
1BTCX-ray2.00A6-496[»]
1BYAX-ray2.20A2-496[»]
1BYBX-ray1.90A2-496[»]
1BYCX-ray2.20A2-496[»]
1BYDX-ray2.20A2-496[»]
1Q6CX-ray1.86A2-496[»]
1Q6DX-ray2.00A2-496[»]
1Q6EX-ray1.95A2-496[»]
1Q6FX-ray2.10A2-496[»]
1Q6GX-ray2.00A2-496[»]
1UKOX-ray2.10A/B/C/D2-495[»]
1UKPX-ray2.10A/B/C/D2-495[»]
1V3HX-ray1.60A2-495[»]
1V3IX-ray1.90A2-495[»]
1WDPX-ray1.27A2-495[»]
1WDQX-ray1.28A2-495[»]
1WDRX-ray1.35A2-495[»]
1WDSX-ray1.64A2-495[»]
ModBaseSearch...

Protein family/group databases

CAZyGH14. Glycoside Hydrolase Family 14.

Enzyme and pathway databases

BRENDA3.2.1.2. 299.

Gene expression databases

GenevestigatorP10538.

Family and domain databases

InterProIPR001554. Glyco_hydro_14.
IPR018238. Glyco_hydro_14_CS.
IPR001371. Glyco_hydro_14B_pln.
IPR017853. Glyco_hydro_catalytic_core.
IPR013781. Glyco_hydro_sg_catalytic.
[Graphical view]
Gene3DG3DSA:3.20.20.80. Glyco_hydro_cat. 1 hit.
PfamPF01373. Glyco_hydro_14. 1 hit.
[Graphical view]
PRINTSPR00750. BETAAMYLASE.
PR00842. GLHYDLASE14B.
PROSITEPS00506. BETA_AMYLASE_1. 1 hit.
PS00679. BETA_AMYLASE_2. 1 hit.
[Graphical view]
ProtoNetSearch...

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Entry information

Entry nameAMYB_SOYBN
AccessionPrimary (citable) accession number: P10538
Entry history
Integrated into UniProtKB/Swiss-Prot: July 1, 1989
Last sequence update: January 23, 2007
Last modified: February 9, 2010
This is version 87 of the entry and version 3 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectPPAP (Plant Proteome Annotation Project)

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Relevant documents

Glycosyl hydrolases

Classification of glycosyl hydrolase families and list of entries

PDB cross-references

Index of Protein Data Bank (PDB) cross-references

SIMILARITY comments

Index of protein domains and families

Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents