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UniProtKB - B3VK56 (B3VK56_HUMAN)

Entry version 114 (07 Oct 2020)
Sequence version 1 (02 Sep 2008)
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Protein

Nitric oxide synthase

Gene

NOS1

Organism
Homo sapiens (Human)
Status
Unreviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>-Experimental evidence at transcript leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Produces nitric oxide (NO).UniRule annotation

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<p>This subsection of the 'Function' section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

Protein has several cofactor binding sites:

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the 'Description' field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi420Iron (heme axial ligand)UniRule annotation1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionCalmodulin-bindingUniRule annotationARBA annotation, OxidoreductaseUniRule annotationARBA annotation
LigandFADUniRule annotationARBA annotation, Flavoprotein, FMNUniRule annotationARBA annotation, HemeUniRule annotationARBA annotation, Iron, Metal-binding, NADPUniRule annotationARBA annotation

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Nitric oxide synthaseUniRule annotation (EC:1.14.13.39UniRule annotation)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:NOS1Imported
ORF Names:hCG_40354Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiHomo sapiens (Human)Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9606 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo

Organism-specific databases

Eukaryotic Pathogen Database Resources

More...EuPathDBi		HostDB:ENSG00000089250.18

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Cell projectionARBA annotation

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Organism-specific databases

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...PharmGKBi		PA252

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Keywords - PTMi

Ubl conjugationARBA annotation

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSG00000089250, Expressed in vastus lateralis and 134 other tissues

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

GO - Molecular functioni

Complete GO annotation on QuickGO ...

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...SMRi		B3VK56

Database of comparative protein structure models

More...ModBasei		Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini17 – 99PDZInterPro annotationAdd BLAST83
Domaini760 – 940Flavodoxin-likeInterPro annotationAdd BLAST181
Domaini995 – 1242FAD-binding FR-typeInterPro annotationAdd BLAST248

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni112 – 192DisorderedSequence analysisAdd BLAST81
Regioni276 – 302DisorderedSequence analysisAdd BLAST27

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi280 – 299PolarSequence analysisAdd BLAST20

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the NOS family.UniRule annotationARBA annotation

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_001570_16_0_1

KEGG Orthology (KO)

More...KOi		K13240

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		1.20.990.10, 1 hit
2.30.42.10, 1 hit
3.40.50.360, 1 hit
3.40.50.80, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR003097, CysJ-like_FAD-binding
IPR017927, FAD-bd_FR_type
IPR001094, Flavdoxin-like
IPR008254, Flavodoxin/NO_synth
IPR001709, Flavoprot_Pyr_Nucl_cyt_Rdtase
IPR029039, Flavoprotein-like_sf
IPR039261, FNR_nucleotide-bd
IPR023173, NADPH_Cyt_P450_Rdtase_alpha
IPR012144, NOS_euk
IPR004030, NOS_N
IPR036119, NOS_N_sf
IPR001433, OxRdtase_FAD/NAD-bd
IPR001478, PDZ
IPR036034, PDZ_sf
IPR017938, Riboflavin_synthase-like_b-brl

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00667, FAD_binding_1, 1 hit
PF00258, Flavodoxin_1, 1 hit
PF00175, NAD_binding_1, 1 hit
PF02898, NO_synthase, 1 hit
PF00595, PDZ, 1 hit

PIRSF; a whole-protein classification database

More...PIRSFi		PIRSF000333, NOS, 1 hit

Protein Motif fingerprint database; a protein domain database

More...PRINTSi		PR00369, FLAVODOXIN
PR00371, FPNCR

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00228, PDZ, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF50156, SSF50156, 1 hit
SSF52218, SSF52218, 1 hit
SSF52343, SSF52343, 1 hit
SSF56512, SSF56512, 1 hit
SSF63380, SSF63380, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS51384, FAD_FR, 1 hit
PS50902, FLAVODOXIN_LIKE, 1 hit
PS60001, NOS, 1 hit
PS50106, PDZ, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

B3VK56-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MEDHMFGVQQ IQPNVISVRL FKRKVGGLGF LVKERVSKPP VIISDLIRGG 
        60         70         80         90        100
AAEQSGLIQA GDIILAVNGR PLVDLSYDSA LEVLRGIASE THVVLILRGP 
       110        120        130        140        150
EGFTTHLETT FTGDGTPKTI RVTQPLGPPT KAVDLSHQPP AGKEQPLAVD 
       160        170        180        190        200
GASGPGNGPQ HAYDDGQEAG SLPHANGLAP RPPGQDPAKK ATRVSLQGRG 
       210        220        230        240        250
ENNELLKEIE PVLSLLTSGS RGVKGGAPAK AEMKDMGIQV DRDLDGKSHK 
       260        270        280        290        300
PLPLGVENDR VFNDLWGKGN VPVVLNNPYS EKEQPPTSGK QSPTKNGSPS 
       310        320        330        340        350
KCPRFLKVKN WETEVVLTDT LHLKSTLETG CTEYICMGSI MHPSQHARRP 
       360        370        380        390        400
EDVRTKGQLF PLAKEFIDQY YSSIKRFGSK AHMERLEEVN KEIDTTSTYQ 
       410        420        430        440        450
LKDTELIYGA KHAWRNASRC VGRIQWSKLQ VFDARDCTTA HGMFNYICNH 
       460        470        480        490        500
VKYATNKGNL RSAITIFPQR TDGKHDFRVW NSQLIRYAGY KQPDGSTLGD 
       510        520        530        540        550
PANVQFTEIC IQQGWKPPRG RFDVLPLLLQ ANGNDPELFQ IPPELVLEVP 
       560        570        580        590        600
IRHPKFEWFK DLGLKWYGLP AVSNMLLEIG GLEFSACPFS GWYMGTEIGV 
       610        620        630        640        650
RDYCDNSRYN ILEEVAKKMN LDMRKTSSLW KDQALVEINI AVLYSFQSDK 
       660        670        680        690        700
VTIVDHHSAT ESFIKHMENE YRCRGGCPAD WVWIVPPMSG SITPVFHQEM 
       710        720        730        740        750
LNYRLTPSFE YQPDPWNTHV WKGTNGTPTK RRAIGFKKLA EAVKFSAKLM 
       760        770        780        790        800
GQAMAKRVKA TILYATETGK SQAYAKTLCE IFKHAFDAKV MSMEEYDIVH 
       810        820        830        840        850
LEHETLVLVV TSTFGNGDPP ENGEKFGCAL MEMRHPNSVQ EERKSYKVRF 
       860        870        880        890        900
NSVSSYSDSQ KSSGDGPDLR DNFESAGPLA NVRFSVFGLG SRAYPHFCAF 
       910        920        930        940        950
GHAVDTLLEE LGGERILKMR EGDELCGQEE AFRTWAKKVF KAACDVFCVG 
       960        970        980        990       1000
DDVNIEKANN SLISNDRSWK RNKFRLTFVA EAPELTQGLS NVHKKRVSAA 
      1010       1020       1030       1040       1050
RLLSRQNLQS PKSSRSTIFV RLHTNGSQEL QYQPGDHLGV FPGNHEDLVN 
      1060       1070       1080       1090       1100
ALIERLEDAP PVNQMVKVEL LEERNTALGV ISNWTDELRL PPCTIFQAFK 
      1110       1120       1130       1140       1150
YYLDITTPPT PLQLQQFASL ATSEKEKQRL LVLSKGLQEY EEWKWGKNPT 
      1160       1170       1180       1190       1200
IVEVLEEFPS IQMPATLLLT QLSLLQPRYY SISSSPDMYP DEVHLTVAIV 
      1210       1220       1230       1240       1250
SYRTRDGEGP IHHGVCSSWL NRIQADELVP CFVRGAPSFH LPRNPQVPCI 
      1260       1270       1280       1290       1300
LVGPGTGIAP FRSFWQQRQF DIQHKGMNPC PMVLVFGCRQ SKIDHIYREE 
      1310       1320       1330       1340       1350
TLQAKNKGVF RELYTAYSRE PDKPKKYVQD ILQEQLAESV YRALKEQGGH 
      1360       1370       1380       1390       1400
IYVCGDVTMA ADVLKAIQRI MTQQGKLSAE DAGVFISRMR DDNRYHEDIF 
      1410       1420       1430 
GVTLRTYEVT NRLRSESIAF IEESKKDTDE VFSS
Length:1,434
Mass (Da):160,970
Last modified:September 2, 2008 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i99235793B953BF37
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
EU753241 mRNA Translation: ACF04132.1
CH471054 Genomic DNA Translation: EAW98110.1

NCBI Reference Sequences

More...RefSeqi		NP_000611.1, NM_000620.4
XP_016874836.1, XM_017019347.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...GeneIDi		4842

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		hsa:4842

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
EU753241 mRNA Translation: ACF04132.1
CH471054 Genomic DNA Translation: EAW98110.1
RefSeqiNP_000611.1, NM_000620.4
XP_016874836.1, XM_017019347.1

3D structure databases

SMRiB3VK56
ModBaseiSearch...

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...Antibodypediai		3691, 908 antibodies

The DNASU plasmid repository

More...DNASUi		4842

Genome annotation databases

GeneIDi4842
KEGGihsa:4842

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		4842
EuPathDBiHostDB:ENSG00000089250.18
PharmGKBiPA252

Phylogenomic databases

HOGENOMiCLU_001570_16_0_1
KOiK13240

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...BioGRID-ORCSi		4842, 2 hits in 871 CRISPR screens

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...ChiTaRSi		NOS1, human

Database of phenotypes from RNA interference screens in Drosophila and Homo sapiens

More...GenomeRNAii		4842

Gene expression databases

BgeeiENSG00000089250, Expressed in vastus lateralis and 134 other tissues

Family and domain databases

Gene3Di1.20.990.10, 1 hit
2.30.42.10, 1 hit
3.40.50.360, 1 hit
3.40.50.80, 1 hit
InterProiView protein in InterPro
IPR003097, CysJ-like_FAD-binding
IPR017927, FAD-bd_FR_type
IPR001094, Flavdoxin-like
IPR008254, Flavodoxin/NO_synth
IPR001709, Flavoprot_Pyr_Nucl_cyt_Rdtase
IPR029039, Flavoprotein-like_sf
IPR039261, FNR_nucleotide-bd
IPR023173, NADPH_Cyt_P450_Rdtase_alpha
IPR012144, NOS_euk
IPR004030, NOS_N
IPR036119, NOS_N_sf
IPR001433, OxRdtase_FAD/NAD-bd
IPR001478, PDZ
IPR036034, PDZ_sf
IPR017938, Riboflavin_synthase-like_b-brl
PfamiView protein in Pfam
PF00667, FAD_binding_1, 1 hit
PF00258, Flavodoxin_1, 1 hit
PF00175, NAD_binding_1, 1 hit
PF02898, NO_synthase, 1 hit
PF00595, PDZ, 1 hit
PIRSFiPIRSF000333, NOS, 1 hit
PRINTSiPR00369, FLAVODOXIN
PR00371, FPNCR
SMARTiView protein in SMART
SM00228, PDZ, 1 hit
SUPFAMiSSF50156, SSF50156, 1 hit
SSF52218, SSF52218, 1 hit
SSF52343, SSF52343, 1 hit
SSF56512, SSF56512, 1 hit
SSF63380, SSF63380, 1 hit
PROSITEiView protein in PROSITE
PS51384, FAD_FR, 1 hit
PS50902, FLAVODOXIN_LIKE, 1 hit
PS60001, NOS, 1 hit
PS50106, PDZ, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...ProtoNeti		Search...

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiB3VK56_HUMAN
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: B3VK56
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/TrEMBL: September 2, 2008
Last sequence update: September 2, 2008
Last modified: October 7, 2020
This is version 114 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiUnreviewed (UniProtKB/TrEMBL)
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.
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