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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:ATG4B

Protein Summary

check button Gene summary
Gene name: ATG4B
ASpdb.0 ID: 23192
Gene
Gene symbol

ATG4B

Gene ID

23192

Gene nameautophagy related 4B cysteine peptidase
SynonymsAPG4B|AUTL1|HsAPG4B
Cytomap

2q37.3

Type of geneprotein-coding
Descriptioncysteine protease ATG4BAPG4 autophagy 4 homolog BATG4 autophagy related 4 homolog BAUT-like 1 cysteine endopeptidaseautophagin-1autophagy-related cysteine endopeptidase 1autophagy-related protein 4 homolog BhAPG4B
Modification date20240403
UniProtAcc

Q9Y4P1


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneATG4B

GO:0000045

autophagosome assembly

21177865

GeneATG4B

GO:0000421

autophagosome membrane

34562084

GeneATG4B

GO:0004175

endopeptidase activity

18387192

GeneATG4B

GO:0004197

cysteine-type endopeptidase activity

21177865

GeneATG4B

GO:0006508

proteolysis

15169837|18387192|21177865

GeneATG4B

GO:0006914

autophagy

18387192|26378241|27527864|28821708

GeneATG4B

GO:0008234

cysteine-type peptidase activity

15169837|20818167|21177865|26378241|27527864|28821708|29458288|30661429

GeneATG4B

GO:0016237

microautophagy

33909989

GeneATG4B

GO:0019786

protein-phosphatidylethanolamide deconjugating activity

31315929

GeneATG4B

GO:0051697

protein delipidation

25327288

GeneATG4B

GO:0051697

protein delipidation

26378241|28821708|29458288|33909989



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
Q9Y4P1-1Q9Y4P1-1_2cy7_A.pdb2CY7X-ray1.9A5377

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
Q9Y4P1ATG4BQ9Y4P1-1Q9Y4P1-239346811SubstitutionMMAHSVPSDSRTSRRPTTRPHAARGAPRGSRRPGRTPKWRLPRISARAPYRLRRLRRHTYWPPRRPVAASRCWPVGATPLGSVGGRTGKM189
Q9Y4P1ATG4BQ9Y4P1-1Q9Y4P1-2393468370393SubstitutionDSSDVERLERFFDSEDEDFEILSLGESCQVQILLM458468
Q9Y4P1ATG4BQ9Y4P1-1Q9Y4P1-3393280174Deletionnonenone00
Q9Y4P1ATG4BQ9Y4P1-1Q9Y4P1-3393280321354SubstitutionFFCKTEDDFNDWCQQVKKLSLLGGALPMFELVELKQGRLVRSLIPWAPRPSSWCAAVLGAAVVMCGTP247280
Q9Y4P1ATG4BQ9Y4P1-1Q9Y4P1-3393280355393Deletionnonenone280280
Q9Y4P1ATG4BQ9Y4P1-1Q9Y4P1-4393331174Deletionnonenone00
Q9Y4P1ATG4BQ9Y4P1-1Q9Y4P1-4393331369369SubstitutionLLGESCQVQVGSLG295307
Q9Y4P1ATG4BQ9Y4P1-1Q9Y4P1-6393380370393SubstitutionDSSDVERLERFFDSEDEDFEILSLGESCQVQILLM370380

check buttonMultiple sequence alignment of our canonical and alternatively spliced ATG4B

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of ATG4B
UniProt-idENSGENSTENSP
Q9Y4P1-1ENSG00000168397.17ENST00000404914.8ENSP00000384259.3
Q9Y4P1-4ENSG00000168397.17ENST00000402096.5ENSP00000384661.1
Q9Y4P1-6ENSG00000168397.17ENST00000405546.7ENSP00000383964.3

UniProt-idNM IDNP ID
Q9Y4P1-1NM_013325.4NP_037457.3
Q9Y4P1-6NM_178326.2NP_847896.1

check buttonAmino acid sequences of our canonical and alternatively spliced ATG4B
accession_idProtein sequence
Q9Y4P1-1MDAATLTYDTLRFAEFEDFPETSEPVWILGRKYSIFTEKDEILSDVASRLWFTYRKNFPAIGGTGPTSDTGWGCMLRCGQMIFAQALVCR
HLGRDWRWTQRKRQPDSYFSVLNAFIDRKDSYYSIHQIAQMGVGEGKSIGQWYGPNTVAQVLKKLAVFDTWSSLAVHIAMDNTVVMEEIR
RLCRTSVPCAGATAFPADSDRHCNGFPAGAEVTNRPSPWRPLVLLIPLRLGLTDINEAYVETLKHCFMMPQSLGVIGGKPNSAHYFIGYV
GEELIYLDPHTTQPAVEPTDGCFIPDESFHCQHPPCRMSIAELDPSIAVGFFCKTEDDFNDWCQQVKKLSLLGGALPMFELVELQPSHLA
Q9Y4P1-2MAHSVPSDSRTSRRPTTRPHAARGAPRGSRRPGRTPKWRLPRISARAPYRLRRLRRHTYWPPRRPVAASRCWPVGATPLGSVGGRTGKMD
AATLTYDTLRFAEFEDFPETSEPVWILGRKYSIFTEKDEILSDVASRLWFTYRKNFPAIGGTGPTSDTGWGCMLRCGQMIFAQALVCRHL
GRDWRWTQRKRQPDSYFSVLNAFIDRKDSYYSIHQIAQMGVGEGKSIGQWYGPNTVAQVLKKLAVFDTWSSLAVHIAMDNTVVMEEIRRL
CRTSVPCAGATAFPADSDRHCNGFPAGAEVTNRPSPWRPLVLLIPLRLGLTDINEAYVETLKHCFMMPQSLGVIGGKPNSAHYFIGYVGE
ELIYLDPHTTQPAVEPTDGCFIPDESFHCQHPPCRMSIAELDPSIAVGFFCKTEDDFNDWCQQVKKLSLLGGALPMFELVELQPSHLACP
Q9Y4P1-3MLRCGQMIFAQALVCRHLGRDWRWTQRKRQPDSYFSVLNAFIDRKDSYYSIHQIAQMGVGEGKSIGQWYGPNTVAQVLKKLAVFDTWSSL
AVHIAMDNTVVMEEIRRLCRTSVPCAGATAFPADSDRHCNGFPAGAEVTNRPSPWRPLVLLIPLRLGLTDINEAYVETLKHCFMMPQSLG
VIGGKPNSAHYFIGYVGEELIYLDPHTTQPAVEPTDGCFIPDESFHCQHPPCRMSIAELDPSIAVGKQGRLVRSLIPWAPRPSSWCAAVL
Q9Y4P1-4MLRCGQMIFAQALVCRHLGRDWRWTQRKRQPDSYFSVLNAFIDRKDSYYSIHQIAQMGVGEGKSIGQWYGPNTVAQVLKKLAVFDTWSSL
AVHIAMDNTVVMEEIRRLCRTSVPCAGATAFPADSDRHCNGFPAGAEVTNRPSPWRPLVLLIPLRLGLTDINEAYVETLKHCFMMPQSLG
VIGGKPNSAHYFIGYVGEELIYLDPHTTQPAVEPTDGCFIPDESFHCQHPPCRMSIAELDPSIAVGFFCKTEDDFNDWCQQVKKLSLLGG
Q9Y4P1-6MDAATLTYDTLRFAEFEDFPETSEPVWILGRKYSIFTEKDEILSDVASRLWFTYRKNFPAIGGTGPTSDTGWGCMLRCGQMIFAQALVCR
HLGRDWRWTQRKRQPDSYFSVLNAFIDRKDSYYSIHQIAQMGVGEGKSIGQWYGPNTVAQVLKKLAVFDTWSSLAVHIAMDNTVVMEEIR
RLCRTSVPCAGATAFPADSDRHCNGFPAGAEVTNRPSPWRPLVLLIPLRLGLTDINEAYVETLKHCFMMPQSLGVIGGKPNSAHYFIGYV
GEELIYLDPHTTQPAVEPTDGCFIPDESFHCQHPPCRMSIAELDPSIAVGFFCKTEDDFNDWCQQVKKLSLLGGALPMFELVELQPSHLA

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
ATG4B (go to UniProt):Q9Y4P1

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
Q9Y4P1Motif388391Note=LIR;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:28287329;Dbxref=PMID:28287329Type=Substitution;Start=370;End=393
Q9Y4P1Motif388391Note=LIR;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:28287329;Dbxref=PMID:28287329Type=Deletion;Start=355;End=393
Q9Y4P1Motif388391Note=LIR;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:28287329;Dbxref=PMID:28287329Type=Substitution;Start=370;End=393


Gene Isoform Structures and Expression Levels for ATG4B

check buttonGene structures of our canonical and alternative spliced genes of ATG4B
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of ATG4B

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 Q9Y4P1-1
3D view using mol* of Q9Y4P1-2
3D view using mol* of Q9Y4P1-3
3D view using mol* of Q9Y4P1-4
3D view using mol* of Q9Y4P1-6


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 Q9Y4P1-1
all structure
pLDDT distribution across the protein length of Q9Y4P1-2
all structure
pLDDT distribution across the protein length of Q9Y4P1-3
all structure
pLDDT distribution across the protein length of Q9Y4P1-4
all structure
pLDDT distribution across the protein length of Q9Y4P1-6
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 Q9Y4P1-1
all structure
Ramachandran plot of Q9Y4P1-2
all structure
Ramachandran plot of Q9Y4P1-3
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
Q9Y4P1-11.025961.084292.5790.5710.6680.9061.1880.7291.6285.876142,145,229,232,233,258,259,260,314,315,316,367,36
9,377,380,381,383,385,386,387,388,389,390
Q9Y4P1-20.884800.902206.4860.6790.6110.7450.2840.9380.3030.994259,260,261,316,317,318,319,320,321,322,324,327,43
4,435,436,437,438,447,453,454,455,456,457
Q9Y4P1-31.0183521.0461129.8420.5880.7060.8790.7530.9730.7740.5111,2,3,4,6,7,10,11,14,15,16,19,20,22,23,24,34,37,38
,41,42,43,65,66,68,69,147,172,173,175,176,177,178,
179,180,181,187,189,191,193,202,203,204,205,206,20
7,208,209,210,211,212,224,225,226,227,228,229,230,
231,232,248,249,250,251,254
Q9Y4P1-41.0263241.0581031.0580.5630.710.8780.8280.9460.8750.5911,2,3,6,7,10,11,14,20,22,23,24,34,37,38,41,42,43,5
5,64,65,66,67,68,69,173,175,176,178,179,180,187,18
8,189,191,193,203,204,205,206,207,208,209,210,211,
212,223,224,225,226,227,228,229,230,231,232
Q9Y4P1-60.9941891.004637.2940.6070.6890.8790.3691.0730.3440.91135,137,145,146,147,150,153,154,167,168,169,170,17
1,172,173,175,178,227,228,229,230,231,236,239,316,
317,346,347,348,349,350,355,359,361,362,363,364,36
5,366,379,380

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 Q9Y4P1-1_Q9Y4P1-1_2cy7_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 Q9Y4P1-1_2cy7_A_Q9Y4P1-2.pdb
3D view using mol* of Q9Y4P1-1_2cy7_A_Q9Y4P1-3.pdb
3D view using mol* of Q9Y4P1-1_2cy7_A_Q9Y4P1-4.pdb
3D view using mol* of Q9Y4P1-1_2cy7_A_Q9Y4P1-6.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 Q9Y4P1-1_Q9Y4P1-2.pdb
3D view using mol* of Q9Y4P1-1_Q9Y4P1-3.pdb
3D view using mol* of Q9Y4P1-1_Q9Y4P1-4.pdb
3D view using mol* of Q9Y4P1-1_Q9Y4P1-6.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/Q9Y4P1-1_vs_Q9Y4P1-2.png
all structure<
./stats/secondary_structure/figure/Q9Y4P1-1_vs_Q9Y4P1-3.png
all structure<
./stats/secondary_structure/figure/Q9Y4P1-1_vs_Q9Y4P1-4.png
all structure<
./stats/secondary_structure/figure/Q9Y4P1-1_vs_Q9Y4P1-6.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/Q9Y4P1-1_vs_Q9Y4P1-2.png
all structure<
./stats/relative_asa/Q9Y4P1-1_vs_Q9Y4P1-3.png
all structure<
./stats/relative_asa/Q9Y4P1-1_vs_Q9Y4P1-4.png
all structure<
./stats/relative_asa/Q9Y4P1-1_vs_Q9Y4P1-6.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 ATG4B


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions

Related Diseases to ATG4B


check button Previous studies relating to the alternative splicing of ATG4B and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in ATG4B


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