ASpdb: an integrative knowledgebase of human protein isoforms from experimental and AI-predicted structures
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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:ALDH2

Protein Summary

check button Gene summary
Gene name: ALDH2
ASpdb.0 ID: 217
Gene
Gene symbol

ALDH2

Gene ID

217

Gene namealdehyde dehydrogenase 2 family member
SynonymsALDH-E2|ALDHI|ALDM
Cytomap

12q24.12

Type of geneprotein-coding
Descriptionaldehyde dehydrogenase, mitochondrialALDH class 2acetaldehyde dehydrogenase 2aldehyde dehydrogenase 2 family (mitochondrial)epididymis secretory sperm binding proteinliver mitochondrial ALDHnucleus-encoded mitochondrial aldehyde dehydrogenase 2
Modification date20240411
UniProtAcc

P05091


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneALDH2

GO:0004029

aldehyde dehydrogenase (NAD+) activity

4015840|19506075|20062057|27521998

GeneALDH2

GO:0018547

nitroglycerin reductase activity

19506075

GeneALDH2

GO:0046185

aldehyde catabolic process

20062057|27521998

GeneALDH2

GO:0106435

carboxylesterase activity

19506075



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
P05091-1P05091-1_4fr8_C.pdb4FR8X-ray2.2C22517

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
P05091ALDH2P05091-1P05091-251747074120Deletionnonenone7373

check buttonMultiple sequence alignment of our canonical and alternatively spliced ALDH2

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of ALDH2
UniProt-idENSGENSTENSP
P05091-1ENSG00000111275.13ENST00000261733.7ENSP00000261733.2
P05091-2ENSG00000111275.13ENST00000416293.7ENSP00000403349.3

UniProt-idNM IDNP ID
P05091-1NM_000690.3NP_000681.2
P05091-2NM_001204889.1NP_001191818.1

check buttonAmino acid sequences of our canonical and alternatively spliced ALDH2
accession_idProtein sequence
P05091-1MLRAAARFGPRLGRRLLSAAATQAVPAPNQQPEVFCNQIFINNEWHDAVSRKTFPTVNPSTGEVICQVAEGDKEDVDKAVKAARAAFQLG
SPWRRMDASHRGRLLNRLADLIERDRTYLAALETLDNGKPYVISYLVDLDMVLKCLRYYAGWADKYHGKTIPIDGDFFSYTRHEPVGVCG
QIIPWNFPLLMQAWKLGPALATGNVVVMKVAEQTPLTALYVANLIKEAGFPPGVVNIVPGFGPTAGAAIASHEDVDKVAFTGSTEIGRVI
QVAAGSSNLKRVTLELGGKSPNIIMSDADMDWAVEQAHFALFFNQGQCCCAGSRTFVQEDIYDEFVERSVARAKSRVVGNPFDSKTEQGP
QVDETQFKKILGYINTGKQEGAKLLCGGGIAADRGYFIQPTVFGDVQDGMTIAKEEIFGPVMQILKFKTIEEVVGRANNSTYGLAAAVFT
P05091-2MLRAAARFGPRLGRRLLSAAATQAVPAPNQQPEVFCNQIFINNEWHDAVSRKTFPTVNPSTGEVICQVAEGDKALETLDNGKPYVISYLV
DLDMVLKCLRYYAGWADKYHGKTIPIDGDFFSYTRHEPVGVCGQIIPWNFPLLMQAWKLGPALATGNVVVMKVAEQTPLTALYVANLIKE
AGFPPGVVNIVPGFGPTAGAAIASHEDVDKVAFTGSTEIGRVIQVAAGSSNLKRVTLELGGKSPNIIMSDADMDWAVEQAHFALFFNQGQ
CCCAGSRTFVQEDIYDEFVERSVARAKSRVVGNPFDSKTEQGPQVDETQFKKILGYINTGKQEGAKLLCGGGIAADRGYFIQPTVFGDVQ
DGMTIAKEEIFGPVMQILKFKTIEEVVGRANNSTYGLAAAVFTKDLDKANYLSQALQAGTVWVNCYDVFGAQSPFGGYKMSGSGRELGEY

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
ALDH2 (go to UniProt):P05091

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


Gene Isoform Structures and Expression Levels for ALDH2

check buttonGene structures of our canonical and alternative spliced genes of ALDH2
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of ALDH2

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 P05091-1
3D view using mol* of P05091-2


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 P05091-1
all structure
pLDDT distribution across the protein length of P05091-2
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 P05091-1
all structure
Ramachandran plot of P05091-2
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
P05091-11.0494101.0891395.3240.5940.7230.9441.2170.8731.3950.56311,12,13,14,15,16,17,19,20,21,22,23,116,130,131,13
2,133,136,137,140,141,143,144,145,147,182,183,184,
185,186,187,190,191,194,209,211,212,213,242,243,24
6,247,251,260,261,262,263,264,265,266,269,270,273,
285,287,301,302,304,305,306,308,309,312,313,314,31
5,318,319,320,338,342,346,351,353,354,355,356,357,
358,366,369,373,415,416,417,418,442,473,474,475,47
6,477,478,479,482,494
P05091-21.063741.1211139.7890.5770.6960.8931.4360.7261.9780.98410,11,12,13,14,15,16,17,19,20,21,22,23,27,28,29,32
,72,73,74,75,76,83,84,85,86,87,88,89,90,92,93,94,9
5,96,97,98,99,100,102,103,106,140,142,143,145,146,
147,149,150,153,154,170,173,174,177,178,181,183,25
2,254,255,257,258,259,261,262,266,267,268,291,294,
295,299,304,306,307,308,309,310,311,426,427,428,42
9,430,431,447

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 P05091-1_P05091-1_4fr8_C.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 P05091-1_4fr8_C_P05091-2.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 P05091-1_P05091-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/P05091-1_vs_P05091-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/P05091-1_vs_P05091-2.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 ALDH2


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
P05091ALDH2DB00157NADHapproved, nutraceutical
P05091ALDH2DB02115Daidzinexperimental
P05091ALDH2DB00536Guanidineapprovedinhibitor
P05091ALDH2DB00822Disulfiramapprovedinhibitor
P05091ALDH2DB04381Crotonaldehydeexperimental

Related Diseases to ALDH2


check button Previous studies relating to the alternative splicing of ALDH2 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term
ALDH220403997Genetic variation in 3-hydroxy-3-methylglutaryl CoA reductase modifies the chemopreventive activity of statins for colorectal cancer.Genetic variation in 3-hydroxy-3-methylglutaryl CoA reductase (HMGCR), the rate-limiting enzyme in cholesterol synthesis, modifies the effect of statins on serum cholesterol levels. Long-term use of statins is associated with a reduced risk of colorectal cancer (CRC) in some, but not all, studies. We genotyped variants in 40 candidate genes important for cholesterol synthesis and metabolism in a population-based case-control study of CRC involving 2,138 incident cases and 2,049 population-based controls. We identified a single-nucleotide polymorphism in the HMGCR gene that significantly modified the protective association between statins and CRC risk. Compared with nonusers, the unadjusted odds ratio of CRC among statin users with the A/A genotype of rs12654264 in HMGCR was 0.3 (95% confidence interval, 0.18-0.51) and among statin users with the T/T genotype was 0.66 (95% confidence interval, 0.41-1.06; P-interaction = 0.0012). This genetic variant (A/A genotype of rs12654264) also was associated with lower serum levels of low-density lipoprotein among all cases and controls. In colon cancer cell lines, the reduction in cholesterol levels after statin treatment was substantially stronger in cells carrying the A/A genotype, and this difference was related to alternative splicing involving the HMGCR statin-binding domain. We anticipate that these data may advance the development of personalized statin use for reducing the risk of cancer as well as cardiovascular disease among the approximately 25 million people currently using statins worldwide.D015179Colorectal Neoplasms


Clinically important variants in ALDH2


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