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Center for Computational Systems Medicine
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Protein Summary

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AS Summary

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Protein Functional Features

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Gene Isoform Structures and Expression Levels

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Protein Structures

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pLDDT Score Distribution

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Ramachandran Plot of Protein Structures

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Potential Active Site Information

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Protein Structure and Feature Comparision

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Protein-Protein Interaction

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Related Drugs

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Related Diseases

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Clinically Important Variants

Protein:MS4A1

Protein Summary

check button Gene summary
Gene name: MS4A1
ASpdb.0 ID: 931
Gene
Gene symbol

MS4A1

Gene ID

931

Gene namemembrane spanning 4-domains A1
SynonymsB1|Bp35|CD20|CVID5|FMC7|LEU-16|S7
Cytomap

11q12.2

Type of geneprotein-coding
DescriptionB-lymphocyte antigen CD20B-lymphocyte cell-surface antigen B1CD20 antigenCD20 receptorleukocyte surface antigen Leu-16membrane-spanning 4-domains, subfamily A, member 1
Modification date20240305
UniProtAcc

P11836


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneMS4A1

GO:0005654

nucleoplasm

-

GeneMS4A1

GO:0005886

plasma membrane

23874341

GeneMS4A1

GO:0009986

cell surface

3925015

GeneMS4A1

GO:0019865

immunoglobulin binding

18474602

GeneMS4A1

GO:0030183

B cell differentiation

3925015

GeneMS4A1

GO:0042113

B cell activation

3925015

GeneMS4A1

GO:0044853

plasma membrane raft

12920111

GeneMS4A1

GO:0050853

B cell receptor signaling pathway

18474602

GeneMS4A1

GO:0051262

protein tetramerization

7684739|18474602

GeneMS4A1

GO:1902656

calcium ion import into cytosol

7684739



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
P11836-1P11836-1_6y92_A.pdb6Y92EM4.73A41218

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
P11836MS4A1P11836-1P11836-229713038204Deletionnonenone3737

check buttonMultiple sequence alignment of our canonical and alternatively spliced MS4A1

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of MS4A1
UniProt-idENSGENSTENSP
P11836-1ENSG00000156738.18ENST00000345732.9ENSP00000314620.7
P11836-1ENSG00000156738.18ENST00000389939.2ENSP00000374589.2
P11836-1ENSG00000156738.18ENST00000534668.6ENSP00000433277.1
P11836-1ENSG00000156738.18ENST00000674194.1ENSP00000501369.1
P11836-2ENSG00000156738.18ENST00000528313.1ENSP00000432270.1

UniProt-idNM IDNP ID
P11836-1NM_021950.3NP_068769.2
P11836-1NM_152866.2NP_690605.1

check buttonAmino acid sequences of our canonical and alternatively spliced MS4A1
accession_idProtein sequence
P11836-1MTTPRNSVNGTFPAEPMKGPIAMQSGPKPLFRRMSSLVGPTQSFFMRESKTLGAVQIMNGLFHIALGGLLMIPAGIYAPICVTVWYPLWG
GIMYIISGSLLAATEKNSRKCLVKGKMIMNSLSLFAAISGMILSIMDILNIKISHFLKMESLNFIRAHTPYINIYNCEPANPSEKNSPST
QYCYSIQSLFLGILSVMLIFAFFQELVIAGIVENEWKRTCSRPKSNIVLLSAEEKKEQTIEIKEEVVGLTETSSQPKNEEDIEIIPIQEE
P11836-2MTTPRNSVNGTFPAEPMKGPIAMQSGPKPLFRRMSSLELVIAGIVENEWKRTCSRPKSNIVLLSAEEKKEQTIEIKEEVVGLTETSSQPK

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
MS4A1 (go to UniProt):P11836

check buttonRetention analysis result of protein across 39 protein features of UniProt such as six molecule processing features, 13 region features, four site features, six amino acid modification features, two natural variation features, five experimental info features, and 3 secondary structure features. Here, because of limited space for viewing, we only show the protein feature retention information belong to the 13 regional features. All retention annotation result can be downloaded at

download page

* Minus value of BPloci means that the break pointn is located before the CDS.
- Retained protein feature among the 13 regional features.
Accession_idSubsectionStartEndFuncitonal featureSplicing information
P11836Topological domain156Note=Cytoplasmic;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=38;End=204
P11836Transmembrane5778Note=Helical;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=38;End=204
P11836Topological domain7984Note=Extracellular;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=38;End=204
P11836Transmembrane85105Note=Helical;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=38;End=204
P11836Topological domain106120Note=Cytoplasmic;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=38;End=204
P11836Transmembrane121141Note=Helical;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=38;End=204
P11836Topological domain142188Note=Extracellular;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=38;End=204
P11836Transmembrane189209Note=Helical;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=38;End=204
P11836Region7480Note=Epitope 1Type=Deletion;Start=38;End=204
P11836Region146160Note=Epitope 2Type=Deletion;Start=38;End=204
P11836Region168175Note=Epitope 3 (recognized by antibodies%2C including Rituximab)Type=Deletion;Start=38;End=204


Gene Isoform Structures and Expression Levels for MS4A1

check buttonGene structures of our canonical and alternative spliced genes of MS4A1
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of MS4A1

check button Expression levels of gene isoforms across GTEx.
gtex expression

check button Expression levels of gene isoforms across TCGA.
tcga expression


Protein Structures

check button PDB and CIF files of the predicted protein structures
* Here we show the 3D structure of the proteins using Mol*. AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Model confidence is shown from the pLDDT values per residue. pLDDT corresponds to the model’s prediction of its score on the local Distance Difference Test. It is a measure of local accuracy (from AlphfaFold website). To color code individual residues, we transformed individual PDB files into CIF format.
3D view using mol* of P11836-1
3D view using mol* of P11836-2


pLDDT Score Distribution

check button pLDDT score distribution of the predicted protein structures from AlphaFold2
* AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100.
pLDDT distribution across the protein length of P11836-1
all structure


Ramachandran Plot of Protein Structures


check button Ramachandran plot of the torsional angles - phi (φ)and psi (ψ) - of the residues (amino acids) contained in this protein peptide.
Ramachandran plot of P11836-1
all structure

Potential Active Site Information


check button The potential binding sites of these proteins were identified using SiteMap, a module of the Schrodinger suite.
UniProt-idSite scoreSizeD scoreVolumeExposureEnclosureContactPhobicPhilicBalanceDon/AccResidues
P11836-11.0561441.091401.6530.480.7411.0141.1080.9011.2291.19245,46,49,50,101,104,105,106,107,108,112,113,116,11
7,120,121,124,211,212,214,215,216,218,219,222

Protein Structure and Feature Comparision


check button Protein Structure Comparision Using Template Modeling Scores (TM-score).
all structure

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Canonical validated structure (PDB)(green)
3D view using mol* of P11836-1_P11836-1_6y92_A.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical validated structure (PDB)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of P11836-1_6y92_A_P11836-2.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of P11836-1_P11836-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/P11836-1_vs_P11836-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/P11836-1_vs_P11836-2.png
all structure<


Protein-Protein Interaction


check button Interactors from UniProt.
Accession_idSubsectionStartEndFuncitonal featureSplicing information


check button Interactors from STRING.
Gene nameInteractors


Related Drugs to MS4A1


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
P11836MS4A1DB15434Mosunetuzumabapproved, investigationalbinder
P11836MS4A1DB08935Obinutuzumabapproved, investigationalantibody, regulator
P11836MS4A1DB00073Rituximabapprovedantibody, regulator
P11836MS4A1DB16684Odronextamabinvestigationalbinder
P11836MS4A1DB11988Ocrelizumabapproved, investigationalantagonist, antibody
P11836MS4A1DB11850Ublituximabapproved, investigationalbinder, antibody
P11836MS4A1DB00078Ibritumomab tiuxetanapproved, investigationalantibody, regulator
P11836MS4A1DB00081Tositumomabapproved, investigationalantibody
P11836MS4A1DB09336Technetium Tc-99m nofetumomab merpentanapproved, withdrawnbinder
P11836MS4A1DB16371Glofitamabapproved, investigationalbinder, antibody
P11836MS4A1DB06650Ofatumumabapprovedantibody, regulator
P11836MS4A1DB16672Epcoritamabapproved, investigationalbinder, antibody

Related Diseases to MS4A1


check button Previous studies relating to the alternative splicing of MS4A1 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in MS4A1


check button (ClinVar, 04/20/2024)
accession_iduniprot_idgene_nameTypeVariantClinical_significance