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Protein

Myrosinase MB1

Gene
N/A
Organism
Sinapis alba (White mustard) (Brassica hirta)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

Degradation of glucosinolates (glucose residue linked by a thioglucoside bound to an amino acid derivative) to glucose, sulfate and any of the products: thiocyanates, isothiocyanates, nitriles, epithionitriles or oxazolidine-2-thiones.

Catalytic activityi

A thioglucoside + H2O = a sugar + a thiol.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei51SubstrateBy similarity1
Active sitei125NucleophilePROSITE-ProRule annotation1
Binding sitei173SubstrateBy similarity1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Glycosidase, Hydrolase

Protein family/group databases

CAZyiGH1. Glycoside Hydrolase Family 1.

Names & Taxonomyi

Protein namesi
Recommended name:
Myrosinase MB1 (EC:3.2.1.147)
Alternative name(s):
Sinigrinase
Thioglucosidase
OrganismiSinapis alba (White mustard) (Brassica hirta)
Taxonomic identifieri3728 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeBrassiceaeSinapis

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Vacuole

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_0000063902‹1 – 244Myrosinase MB1Add BLAST›244

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Glycosylationi32N-linked (GlcNAc...)Sequence analysis1
Glycosylationi216N-linked (GlcNAc...)Sequence analysis1

Keywords - PTMi

Glycoprotein

Proteomic databases

PRIDEiP29737.

Expressioni

Tissue specificityi

In vacuoles called myrosin grains of a certain class of cells, myrosin cells, distributed in the cotyledons and the axis of the embryo as well as in different organs of the growing plant.

Interactioni

Subunit structurei

Homodimer.

Structurei

3D structure databases

ProteinModelPortaliP29737.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni180 – 181Substrate bindingBy similarity2

Sequence similaritiesi

Belongs to the glycosyl hydrolase 1 family.Curated

Family and domain databases

Gene3Di3.20.20.80. 1 hit.
InterProiIPR001360. Glyco_hydro_1.
IPR018120. Glyco_hydro_1_AS.
IPR013781. Glyco_hydro_catalytic_dom.
IPR017853. Glycoside_hydrolase_SF.
[Graphical view]
PANTHERiPTHR10353. PTHR10353. 1 hit.
PfamiPF00232. Glyco_hydro_1. 1 hit.
[Graphical view]
PRINTSiPR00131. GLHYDRLASE1.
SUPFAMiSSF51445. SSF51445. 1 hit.
PROSITEiPS00572. GLYCOSYL_HYDROL_F1_1. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Fragment.

P29737-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
EFFHGWYMEP LTKGRYPAIM RKIVGSRLPK FNKTEAKLVT GSYDFLGLNY
60 70 80 90 100
YVTQYAKPKP NPYPSETHTA MMDAGVDLTF KNSRGEYPGP VFAEDANSYY
110 120 130 140 150
YPKGIYYVMD YFKTKYGNPL IYITENGIST PGSENRCEAI ADYKRIDYLC
160 170 180 190 200
SHLCFLRKVI KEKGVNVRGY FAWALGDNYE FGKGFTVRFG LSYVNWDNLD
210 220 230 240
DRNLKESGKW YQRFINGTAK NSAKQDFLRS SLSSQSQKKR LADA
Length:244
Mass (Da):28,163
Last modified:April 1, 1993 - v1
Checksum:i1BCC1B6B5F047E2A
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Non-terminal residuei11

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X59881 mRNA. Translation: CAA42536.1.
PIRiS19147.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X59881 mRNA. Translation: CAA42536.1.
PIRiS19147.

3D structure databases

ProteinModelPortaliP29737.
ModBaseiSearch...
MobiDBiSearch...

Protein family/group databases

CAZyiGH1. Glycoside Hydrolase Family 1.

Proteomic databases

PRIDEiP29737.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

Gene3Di3.20.20.80. 1 hit.
InterProiIPR001360. Glyco_hydro_1.
IPR018120. Glyco_hydro_1_AS.
IPR013781. Glyco_hydro_catalytic_dom.
IPR017853. Glycoside_hydrolase_SF.
[Graphical view]
PANTHERiPTHR10353. PTHR10353. 1 hit.
PfamiPF00232. Glyco_hydro_1. 1 hit.
[Graphical view]
PRINTSiPR00131. GLHYDRLASE1.
SUPFAMiSSF51445. SSF51445. 1 hit.
PROSITEiPS00572. GLYCOSYL_HYDROL_F1_1. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiMYR1_SINAL
AccessioniPrimary (citable) accession number: P29737
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 1, 1993
Last sequence update: April 1, 1993
Last modified: October 5, 2016
This is version 80 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Direct protein sequencing

Documents

  1. Glycosyl hydrolases
    Classification of glycosyl hydrolase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.