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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:CYP3A5

Protein Summary

check button Gene summary
Gene name: CYP3A5
ASpdb.0 ID: 1577
Gene
Gene symbol

CYP3A5

Gene ID

1577

Gene namecytochrome P450 family 3 subfamily A member 5
SynonymsCP35|CYPIIIA5|P450PCN3|PCN3
Cytomap

7q22.1

Type of geneprotein-coding
Descriptioncytochrome P450 3A5aryl hydrocarbon hydroxylasecytochrome P450 HLp2cytochrome P450, family 3, subfamily A, polypeptide 5cytochrome P450, subfamily IIIA (niphedipine oxidase), polypeptide 5cytochrome P450-PCN3flavoprotein-linked monooxygenasemicroso
Modification date20240305
UniProtAcc

P20815


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneCYP3A5

GO:0002933

lipid hydroxylation

14559847

GeneCYP3A5

GO:0008202

steroid metabolic process

14559847

GeneCYP3A5

GO:0008210

estrogen metabolic process

12865317

GeneCYP3A5

GO:0008401

retinoic acid 4-hydroxylase activity

11093772

GeneCYP3A5

GO:0009822

alkaloid catabolic process

15039299

GeneCYP3A5

GO:0016491

oxidoreductase activity

15039299

GeneCYP3A5

GO:0042178

xenobiotic catabolic process

15039299

GeneCYP3A5

GO:0042573

retinoic acid metabolic process

11093772

GeneCYP3A5

GO:0070989

oxidative demethylation

15039299

GeneCYP3A5

GO:0101020

estrogen 16-alpha-hydroxylase activity

14559847



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
P20815-1P20815-1_5veu_A.pdb5VEUX-ray2.91A27495

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
P20815CYP3A5P20815-1P20815-2502140107140SubstitutionSLGPVGFMKSAISLAEDEEWKRIRSLLSPTFTSGICATTSTIKMQTHSVTMWLPPAVLQSQHGVCLFL107140
P20815CYP3A5P20815-1P20815-2502140141502Deletionnonenone140140

check buttonMultiple sequence alignment of our canonical and alternatively spliced CYP3A5

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of CYP3A5
UniProt-idENSGENSTENSP
P20815-1ENSG00000106258.16ENST00000222982.8ENSP00000222982.4
P20815-2ENSG00000106258.16ENST00000439761.3ENSP00000401269.1
P20815-2ENSG00000106258.16ENST00000646887.1ENSP00000496704.1

UniProt-idNM IDNP ID
P20815-1NM_000777.4NP_000768.1
P20815-2NM_001190484.2NP_001177413.1

check buttonAmino acid sequences of our canonical and alternatively spliced CYP3A5
accession_idProtein sequence
P20815-1MDLIPNLAVETWLLLAVSLVLLYLYGTRTHGLFKRLGIPGPTPLPLLGNVLSYRQGLWKFDTECYKKYGKMWGTYEGQLPVLAITDPDVI
RTVLVKECYSVFTNRRSLGPVGFMKSAISLAEDEEWKRIRSLLSPTFTSGKLKEMFPIIAQYGDVLVRNLRREAEKGKPVTLKDIFGAYS
MDVITGTSFGVNIDSLNNPQDPFVESTKKFLKFGFLDPLFLSIILFPFLTPVFEALNVSLFPKDTINFLSKSVNRMKKSRLNDKQKHRLD
FLQLMIDSQNSKETESHKALSDLELAAQSIIFIFAGYETTSSVLSFTLYELATHPDVQQKLQKEIDAVLPNKAPPTYDAVVQMEYLDMVV
NETLRLFPVAIRLERTCKKDVEINGVFIPKGSMVVIPTYALHHDPKYWTEPEEFRPERFSKKKDSIDPYIYTPFGTGPRNCIGMRFALMN
P20815-2MDLIPNLAVETWLLLAVSLVLLYLYGTRTHGLFKRLGIPGPTPLPLLGNVLSYRQGLWKFDTECYKKYGKMWGTYEGQLPVLAITDPDVI

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
CYP3A5 (go to UniProt):P20815

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 CYP3A5

check buttonGene structures of our canonical and alternative spliced genes of CYP3A5
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of CYP3A5

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 P20815-1
3D view using mol* of P20815-2


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 P20815-1
all structure
pLDDT distribution across the protein length of P20815-2
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 P20815-1
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
P20815-11.1512901.202978.9220.50.8371.0171.70.7372.3070.64957,105,106,107,108,111,114,118,119,120,126,130,137
,184,209,210,211,212,213,214,215,217,220,239,240,2
41,242,243,300,301,302,304,305,306,309,310,313,364
,368,369,370,371,372,373,374,375,433,434,435,436,4
39,440,441,442,443,446,447,450,451,480,481,483
P20815-20.882470.905281.6030.7280.7170.7451.2130.5212.3280.44433,80,81,82,84,90,93,94,98,102,105,106,139,140

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 P20815-1_P20815-1_5veu_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 P20815-1_5veu_A_P20815-2.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 P20815-1_P20815-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/P20815-1_vs_P20815-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/P20815-1_vs_P20815-2.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 CYP3A5


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
P20815CYP3A5DB14011Nabiximolsinvestigationalinhibitor
P20815CYP3A5DB09065Cobicistatapprovedinhibitor
P20815CYP3A5DB09061Cannabidiolapproved, investigationalinhibitor

Related Diseases to CYP3A5


check button Previous studies relating to the alternative splicing of CYP3A5 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term
CYP3A511726664Intergenic mRNA molecules resulting from trans-splicing.Accumulated recent evidence is indicating that alternative splicing represents a generalized process that increases the complexity of human gene expression. Here we show that mRNA production may not necessarily be limited to single genes, as human liver also has the potential to produce a variety of hybrid cytochrome P450 3A mRNA molecules. The four known cytochrome P450 3A genes in humans, CYP3A4, CYP3A5, CYP3A7, and CYP3A43, share a high degree of similarity, consist of 13 exons with conserved exon-intron boundaries, and form a cluster on chromosome 7. The chimeric CYP3A mRNA molecules described herein are characterized by CYP3A43 exon 1 joined at canonical splice sites to distinct sets of CYP3A4 or CYP3A5 exons. Because the CYP3A43 gene is in a head-to-head orientation with the CYP3A4 and CYP3A5 genes, bypassing transcriptional termination can not account for the formation of hybrid CYP3A mRNAs. Thus, the mechanism generating these molecules has to be an RNA processing event that joins exons of independent pre-mRNA molecules, i.e. trans-splicing. Using quantitative real-time polymerase chain reaction, the ratio of one CYP3A43/3A4 intergenic combination was estimated to be approximately 0.15% that of the CYP3A43 mRNAs. Moreover, trans-splicing has been found not to interfere with polyadenylation. Heterologous expression of the chimeric species composed of CYP3A43 exon 1 joined to exons 2-13 of CYP3A4 revealed catalytic activity toward testosterone.D006528Carcinoma, Hepatocellular
CYP3A511726664Intergenic mRNA molecules resulting from trans-splicing.Accumulated recent evidence is indicating that alternative splicing represents a generalized process that increases the complexity of human gene expression. Here we show that mRNA production may not necessarily be limited to single genes, as human liver also has the potential to produce a variety of hybrid cytochrome P450 3A mRNA molecules. The four known cytochrome P450 3A genes in humans, CYP3A4, CYP3A5, CYP3A7, and CYP3A43, share a high degree of similarity, consist of 13 exons with conserved exon-intron boundaries, and form a cluster on chromosome 7. The chimeric CYP3A mRNA molecules described herein are characterized by CYP3A43 exon 1 joined at canonical splice sites to distinct sets of CYP3A4 or CYP3A5 exons. Because the CYP3A43 gene is in a head-to-head orientation with the CYP3A4 and CYP3A5 genes, bypassing transcriptional termination can not account for the formation of hybrid CYP3A mRNAs. Thus, the mechanism generating these molecules has to be an RNA processing event that joins exons of independent pre-mRNA molecules, i.e. trans-splicing. Using quantitative real-time polymerase chain reaction, the ratio of one CYP3A43/3A4 intergenic combination was estimated to be approximately 0.15% that of the CYP3A43 mRNAs. Moreover, trans-splicing has been found not to interfere with polyadenylation. Heterologous expression of the chimeric species composed of CYP3A43 exon 1 joined to exons 2-13 of CYP3A4 revealed catalytic activity toward testosterone.D008113Liver Neoplasms
CYP3A520403997Genetic 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 CYP3A5


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