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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:NOS3

Protein Summary

check button Gene summary
Gene name: NOS3
ASpdb.0 ID: 4846
Gene
Gene symbol

NOS3

Gene ID

4846

Gene namenitric oxide synthase 3
SynonymsECNOS|eNOS
Cytomap

7q36.1

Type of geneprotein-coding
Descriptionnitric oxide synthase 3EC-NOSNOS type IIINOSIIIcNOSconstitutive NOSendothelial NOSnitric oxide synthase 3 (endothelial cell)
Modification date20240331
UniProtAcc

P29474


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneNOS3

GO:0004517

nitric-oxide synthase activity

1378832|7488039|19666465|35772285

GeneNOS3

GO:0005737

cytoplasm

9794441

GeneNOS3

GO:0005794

Golgi apparatus

25131610

GeneNOS3

GO:0005886

plasma membrane

25131610

GeneNOS3

GO:0005901

caveola

17502619|17848177

GeneNOS3

GO:0006527

arginine catabolic process

1378832|7488039

GeneNOS3

GO:0006809

nitric oxide biosynthetic process

1378832|7488039

GeneNOS3

GO:0019430

removal of superoxide radicals

19666465

GeneNOS3

GO:0020037

heme binding

7488039

GeneNOS3

GO:0034617

tetrahydrobiopterin binding

7488039

GeneNOS3

GO:0034618

arginine binding

7488039

GeneNOS3

GO:0043536

positive regulation of blood vessel endothelial cell migration

23802567

GeneNOS3

GO:0045766

positive regulation of angiogenesis

23802567



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
P29474-1P29474-1_1m9k_B.pdb1M9KX-ray2.01B67481

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
P29474NOS3P29474-1P29474-21203629584625SubstitutionESFAAALMEMSGPYNSSPRPEQHKSYKIRFNSISCSDPLVSSEGLTLWPRLECSSTITAHCSLNLLDSSNPPTSTSQVVGTTGACHDA584629
P29474NOS3P29474-1P29474-212036296261203Deletionnonenone629629
P29474NOS3P29474-1P29474-31203614585614SubstitutionSFAAALMEMSGPYNSSPRPEQHKSYKIRFNRWGFAMLPRLVSNSWVQAIHLPRPPKVLRL585614
P29474NOS3P29474-1P29474-312036146151203Deletionnonenone614614

check buttonMultiple sequence alignment of our canonical and alternatively spliced NOS3

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of NOS3
UniProt-idENSGENSTENSP
P29474-1ENSG00000164867.11ENST00000297494.8ENSP00000297494.3
P29474-2ENSG00000164867.11ENST00000484524.5ENSP00000420215.1
P29474-3ENSG00000164867.11ENST00000467517.1ENSP00000420551.1

UniProt-idNM IDNP ID
P29474-1NM_000603.4NP_000594.2
P29474-2NM_001160111.1NP_001153583.1
P29474-3NM_001160110.1NP_001153582.1

check buttonAmino acid sequences of our canonical and alternatively spliced NOS3
accession_idProtein sequence
P29474-1MGNLKSVAQEPGPPCGLGLGLGLGLCGKQGPATPAPEPSRAPASLLPPAPEHSPPSSPLTQPPEGPKFPRVKNWEVGSITYDTLSAQAQQ
DGPCTPRRCLGSLVFPRKLQGRPSPGPPAPEQLLSQARDFINQYYSSIKRSGSQAHEQRLQEVEAEVAATGTYQLRESELVFGAKQAWRN
APRCVGRIQWGKLQVFDARDCRSAQEMFTYICNHIKYATNRGNLRSAITVFPQRCPGRGDFRIWNSQLVRYAGYRQQDGSVRGDPANVEI
TELCIQHGWTPGNGRFDVLPLLLQAPDDPPELFLLPPELVLEVPLEHPTLEWFAALGLRWYALPAVSNMLLEIGGLEFPAAPFSGWYMST
EIGTRNLCDPHRYNILEDVAVCMDLDTRTTSSLWKDKAAVEINVAVLHSYQLAKVTIVDHHAATASFMKHLENEQKARGGCPADWAWIVP
PISGSLTPVFHQEMVNYFLSPAFRYQPDPWKGSAAKGTGITRKKTFKEVANAVKISASLMGTVMAKRVKATILYGSETGRAQSYAQQLGR
LFRKAFDPRVLCMDEYDVVSLEHETLVLVVTSTFGNGDPPENGESFAAALMEMSGPYNSSPRPEQHKSYKIRFNSISCSDPLVSSWRRKR
KESSNTDSAGALGTLRFCVFGLGSRAYPHFCAFARAVDTRLEELGGERLLQLGQGDELCGQEEAFRGWAQAAFQAACETFCVGEDAKAAA
RDIFSPKRSWKRQRYRLSAQAEGLQLLPGLIHVHRRKMFQATIRSVENLQSSKSTRATILVRLDTGGQEGLQYQPGDHIGVCPPNRPGLV
EALLSRVEDPPAPTEPVAVEQLEKGSPGGPPPGWVRDPRLPPCTLRQALTFFLDITSPPSPQLLRLLSTLAEEPREQQELEALSQDPRRY
EEWKWFRCPTLLEVLEQFPSVALPAPLLLTQLPLLQPRYYSVSSAPSTHPGEIHLTVAVLAYRTQDGLGPLHYGVCSTWLSQLKPGDPVP
CFIRGAPSFRLPPDPSLPCILVGPGTGIAPFRGFWQERLHDIESKGLQPTPMTLVFGCRCSQLDHLYRDEVQNAQQRGVFGRVLTAFSRE
PDNPKTYVQDILRTELAAEVHRVLCLERGHMFVCGDVTMATNVLQTVQRILATEGDMELDEAGDVIGVLRDQQRYHEDIFGLTLRTQEVT
P29474-2MGNLKSVAQEPGPPCGLGLGLGLGLCGKQGPATPAPEPSRAPASLLPPAPEHSPPSSPLTQPPEGPKFPRVKNWEVGSITYDTLSAQAQQ
DGPCTPRRCLGSLVFPRKLQGRPSPGPPAPEQLLSQARDFINQYYSSIKRSGSQAHEQRLQEVEAEVAATGTYQLRESELVFGAKQAWRN
APRCVGRIQWGKLQVFDARDCRSAQEMFTYICNHIKYATNRGNLRSAITVFPQRCPGRGDFRIWNSQLVRYAGYRQQDGSVRGDPANVEI
TELCIQHGWTPGNGRFDVLPLLLQAPDDPPELFLLPPELVLEVPLEHPTLEWFAALGLRWYALPAVSNMLLEIGGLEFPAAPFSGWYMST
EIGTRNLCDPHRYNILEDVAVCMDLDTRTTSSLWKDKAAVEINVAVLHSYQLAKVTIVDHHAATASFMKHLENEQKARGGCPADWAWIVP
PISGSLTPVFHQEMVNYFLSPAFRYQPDPWKGSAAKGTGITRKKTFKEVANAVKISASLMGTVMAKRVKATILYGSETGRAQSYAQQLGR
P29474-3MGNLKSVAQEPGPPCGLGLGLGLGLCGKQGPATPAPEPSRAPASLLPPAPEHSPPSSPLTQPPEGPKFPRVKNWEVGSITYDTLSAQAQQ
DGPCTPRRCLGSLVFPRKLQGRPSPGPPAPEQLLSQARDFINQYYSSIKRSGSQAHEQRLQEVEAEVAATGTYQLRESELVFGAKQAWRN
APRCVGRIQWGKLQVFDARDCRSAQEMFTYICNHIKYATNRGNLRSAITVFPQRCPGRGDFRIWNSQLVRYAGYRQQDGSVRGDPANVEI
TELCIQHGWTPGNGRFDVLPLLLQAPDDPPELFLLPPELVLEVPLEHPTLEWFAALGLRWYALPAVSNMLLEIGGLEFPAAPFSGWYMST
EIGTRNLCDPHRYNILEDVAVCMDLDTRTTSSLWKDKAAVEINVAVLHSYQLAKVTIVDHHAATASFMKHLENEQKARGGCPADWAWIVP
PISGSLTPVFHQEMVNYFLSPAFRYQPDPWKGSAAKGTGITRKKTFKEVANAVKISASLMGTVMAKRVKATILYGSETGRAQSYAQQLGR

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
NOS3 (go to UniProt):P29474

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
P29474Domain520703Note=Flavodoxin-like;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00088Type=Substitution;Start=584;End=625
P29474Domain520703Note=Flavodoxin-like;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00088Type=Deletion;Start=626;End=1203
P29474Domain520703Note=Flavodoxin-like;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00088Type=Substitution;Start=585;End=614
P29474Domain520703Note=Flavodoxin-like;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00088Type=Deletion;Start=615;End=1203
P29474Domain7561002Note=FAD-binding FR-type;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00716Type=Deletion;Start=626;End=1203
P29474Domain7561002Note=FAD-binding FR-type;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00716Type=Deletion;Start=615;End=1203


Gene Isoform Structures and Expression Levels for NOS3

check buttonGene structures of our canonical and alternative spliced genes of NOS3
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of NOS3

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 P29474-1
3D view using mol* of P29474-2
3D view using mol* of P29474-3


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 P29474-1
all structure
pLDDT distribution across the protein length of P29474-2
all structure
pLDDT distribution across the protein length of P29474-3
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 P29474-1
all structure
Ramachandran plot of P29474-2
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
P29474-11.0912121.084700.7490.480.8341.0620.9491.0910.870.689104,109,178,181,182,183,184,185,186,187,188,189,22
6,247,250,330,331,334,336,339,353,354,355,356,357,
358,361,365,366,372,418,423,426,427,430,446,447,44
8,451,468,472,473,474,475
P29474-21.1431691.162262.3950.3940.8831.2181.8120.9441.921.14814,16,17,18,19,109,177,178,180,181,182,183,184,185
,186,188,189,193,226,228,336,338,339,353,354,355,3
56,358,361,418,423,426,442,467,468,469,472,473,474
,475
P29474-31.0463081.0421026.9420.5140.7670.9930.5811.0970.5290.979104,105,109,110,178,181,182,183,184,185,186,187,18
8,189,242,243,244,245,246,247,250,265,266,267,268,
269,270,330,334,336,337,338,339,353,354,355,356,35
7,358,360,361,365,366,369,371,372,418,423,426,427,
446,447,448,449,450,451,468,472,473,475,476,477,47
8,479,480

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 P29474-1_P29474-1_1m9k_B.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 P29474-1_1m9k_B_P29474-2.pdb
3D view using mol* of P29474-1_1m9k_B_P29474-3.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 P29474-1_P29474-2.pdb
3D view using mol* of P29474-1_P29474-3.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/P29474-1_vs_P29474-2.png
all structure<
./stats/secondary_structure/figure/P29474-1_vs_P29474-3.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/P29474-1_vs_P29474-2.png
all structure<
./stats/relative_asa/P29474-1_vs_P29474-3.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 NOS3


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
P29474NOS3DB04223Nitroarginineexperimental, investigational
P29474NOS3DB02027N-{(4S)-4-Amino-5-[(2-aminoethyl)amino]pentyl}-N'-nitroguanidineexperimental
P29474NOS3DB04559N-(Chlorophenyl)-N'-hydroxyguanidineexperimental
P29474NOS3DB02044N-[3-(aminomethyl)benzyl]acetamidineexperimental
P29474NOS3DB020481,2,4-Triazole-Carboxamidineexperimental
P29474NOS3DB02077L-N(omega)-nitroarginine-(4R)-amino-L-proline amideexperimental
P29474NOS3DB02141S,S'-(1,4-Phenylene-Bis(1,2-Ethanediyl))Bis-Isothioureaexperimental
P29474NOS3DB045345-Nitroindazoleexperimental
P29474NOS3DB019973-Bromo-7-Nitroindazoleexperimental
P29474NOS3DB03707S-Ethyl-N-Phenyl-Isothioureaexperimental
P29474NOS3DB01833Canavanineexperimental
P29474NOS3DB01821L-N(omega)-Nitroarginine-2,4-L-diaminobutyric amideexperimental
P29474NOS3DB00125Arginineinvestigational, nutraceutical
P29474NOS3DB01686N,N-dimethylarginineexperimental
P29474NOS3DB03910S,S'-(1,3-Phenylene-Bis(1,2-Ethanediyl))Bis-Isothioureaexperimental
P29474NOS3DB039186S-5,6,7,8-Tetrahydrobiopterinexperimental
P29474NOS3DB00435Nitric Oxideapprovedproduct of
P29474NOS3DB03963S-(Dimethylarsenic)Cysteineexperimental
P29474NOS3DB03974L-homoarginineexperimental
P29474NOS3DB04018S-Isopropyl-Isothioureaexperimental
P29474NOS3DB09237Levamlodipineapproved, investigationalagonist
P29474NOS3DB00155Citrullineinvestigational, nutraceutical
P29474NOS3DB01110Miconazoleapproved, investigational, vet_approvedinhibitor
P29474NOS3DB022077-Nitroindazoleexperimental
P29474NOS3DB07001(3S,5E)-3-propyl-3,4-dihydrothieno[2,3-f][1,4]oxazepin-5(2H)-imineexperimental
P29474NOS3DB02234S-Ethylisothioureaexperimental
P29474NOS3DB02994Cacodylic acidexperimental
P29474NOS3DB033325,6-Cyclic-Tetrahydropteridineexperimental
P29474NOS3DB031006-Nitroindazoleexperimental
P29474NOS3DB030657-Nitroindazole-2-Carboxamidineexperimental
P29474NOS3DB07388ETHYL 4-[(4-METHYLPYRIDIN-2-YL)AMINO]PIPERIDINE-1-CARBOXYLATEexperimental
P29474NOS3DB02979N1,N14-Bis((S-Methyl)Isothioureido)Tetradecaneexperimental
P29474NOS3DB03305N(G)-Iminoethylornithineexperimental
P29474NOS3DB08018N-{(3S,4S)-4-[(6-AMINO-4-METHYLPYRIDIN-2-YL)METHYL]PYRROLIDIN-3-YL}-N'-(4-CHLOROBENZYL)ETHANE-1,2-DIAMINEexperimental
P29474NOS3DB08019N-{(3R,4S)-4-[(6-amino-4-methylpyridin-2-yl)methyl]pyrrolidin-3-yl}-N'-(3-chlorobenzyl)ethane-1,2-diamineexperimental
P29474NOS3DB029112,4-Diamino-6-Phenyl-5,6,7,8,-Tetrahydropteridineexperimental
P29474NOS3DB03144N(5)-[(hydroxyamino)(imino)methyl]-L-ornithineexperimental
P29474NOS3DB023352-Aminothiazolineexperimental
P29474NOS3DB02589Se-Ethyl-Isoselenoureaexperimental
P29474NOS3DB00360Sapropterinapproved, investigationalcofactor
P29474NOS3DB072445-{4-[(3,5-DIFLUOROBENZYL)AMINO]PHENYL}-6-ETHYLPYRIMIDINE-2,4-DIAMINEexperimental

Related Diseases to NOS3


check button Previous studies relating to the alternative splicing of NOS3 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in NOS3


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