General Information of Target

Target ID LDTP09558
Target Name Marginal zone B- and B1-cell-specific protein (MZB1)
Gene Name MZB1
Gene ID 51237
Synonyms
MEDA7; PACAP; Marginal zone B- and B1-cell-specific protein; Mesenteric estrogen-dependent adipose 7; MEDA-7; Plasma cell-induced resident endoplasmic reticulum protein; Plasma cell-induced resident ER protein; pERp1; Proapoptotic caspase adapter protein
3D Structure
Download
2D Sequence (FASTA)
Download
3D Structure (PDB)
Download
Sequence
MRLSLPLLLLLLGAWAIPGGLGDRAPLTATAPQLDDEEMYSAHMPAHLRCDACRAVAYQM
WQNLAKAETKLHTSNSGGRRELSELVYTDVLDRSCSRNWQDYGVREVDQVKRLTGPGLSE
GPEPSISVMVTGGPWPTRLSRTCLHYLGEFGEDQIYEAHQQGRGALEALLCGGPQGACSE
KVSATREEL
Target Bioclass
Other
Family
MZB1 family
Subcellular location
Cytoplasm; Endoplasmic reticulum lumen
Function
Associates with immunoglobulin M (IgM) heavy and light chains and promotes IgM assembly and secretion. May exert its effect by acting as a molecular chaperone or as an oxidoreductase as it displays a low level of oxidoreductase activity. Isoform 2 may be involved in regulation of apoptosis. Helps to diversify peripheral B-cell functions by regulating Ca(2+) stores, antibody secretion and integrin activation.; Acts as a hormone-regulated adipokine/pro-inflammatory cytokine that is implicated in causing chronic inflammation, affecting cellular expansion and blunting insulin response in adipocytes. May have a role in the onset of insulin resistance.
Uniprot ID
Q8WU39
Ensemble ID
ENST00000302125.9
HGNC ID
HGNC:30125

Target Site Mutations in Different Cell Lines

Cell line Mutation details Probe for labeling this protein in this cell
COLO678 Deletion: p.C50TfsTer25
SNV: p.R49L
.
DU145 SNV: p.G132R .
SUPT1 SNV: p.V130I .

Probe(s) Labeling This Target

ABPP Probe
Click To Hide/Show 4 Probe Related to This Target
Probe name Structure Binding Site(Ratio) Interaction ID Ref
DBIA
 Probe Info 
C51(1.07)  LDD3431  [1]
4-Iodoacetamidophenylacetylene
 Probe Info 
N.A.  LDD0038  [2]
IA-alkyne
 Probe Info 
N.A.  LDD0166  [3]
Lodoacetamide azide
 Probe Info 
N.A.  LDD0037  [2]

Competitor(s) Related to This Target

Competitor ID Name Cell line Binding Site(Ratio) Interaction ID Ref
 LDCM0022  KB02 OPM-2 C51(1.26)  LDD2543  [1]
 LDCM0023  KB03 OPM-2 C51(1.35)  LDD2960  [1]
 LDCM0024  KB05 SK-MM-2 C51(1.07)  LDD3431  [1]

The Interaction Atlas With This Target

The Protein(s) Related To This Target

Enzyme
Click To Hide/Show 1 Protein(s) Interacting with This Target
Protein name Family Uniprot ID
Tumor susceptibility gene 101 protein (TSG101) Ubiquitin-conjugating enzyme family Q99816

References

1 DrugMap: A quantitative pan-cancer analysis of cysteine ligandability. Cell. 2024 May 9;187(10):2536-2556.e30. doi: 10.1016/j.cell.2024.03.027. Epub 2024 Apr 22.
Mass spectrometry data entry: PXD047840
2 Enhancing Cysteine Chemoproteomic Coverage through Systematic Assessment of Click Chemistry Product Fragmentation. Anal Chem. 2022 Mar 8;94(9):3800-3810. doi: 10.1021/acs.analchem.1c04402. Epub 2022 Feb 23.
Mass spectrometry data entry: PXD028853
3 SP3-FAIMS Chemoproteomics for High-Coverage Profiling of the Human Cysteinome*. Chembiochem. 2021 May 14;22(10):1841-1851. doi: 10.1002/cbic.202000870. Epub 2021 Feb 18.
Mass spectrometry data entry: PXD023056 , PXD023059 , PXD023058 , PXD023057 , PXD023060