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Entry version 131 (02 Jun 2021)
Sequence version 1 (01 Feb 1991)
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Protein

3-hydroxy-3-methylglutaryl-coenzyme A reductase

Gene

hmgcr

Organism
Xenopus laevis (African clawed frog)
Status
Reviewed-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

Catalyzes the conversion of (3S)-hydroxy-3-methylglutaryl-CoA (HMG-CoA) to mevalonic acid, the rate-limiting step in the synthesis of cholesterol and other isoprenoids, thus plays a critical role in cellular cholesterol homeostasis.

By similarity

<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 <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi: (R)-mevalonate biosynthesis

This protein is involved in step 3 of the subpathway that synthesizes (R)-mevalonate from acetyl-CoA. This subpathway is part of the pathway (R)-mevalonate biosynthesis, which is itself part of Metabolic intermediate biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes (R)-mevalonate from acetyl-CoA, the pathway (R)-mevalonate biosynthesis and in Metabolic intermediate biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei554Charge relay systemBy similarity1
Active sitei686Charge relay systemBy similarity1
Active sitei762Charge relay systemBy similarity1
Active sitei861Proton donorPROSITE-ProRule 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

GO - Biological processi

<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 functionOxidoreductase
Biological processCholesterol biosynthesis, Cholesterol metabolism, Lipid biosynthesis, Lipid metabolism, Steroid biosynthesis, Steroid metabolism, Sterol biosynthesis, Sterol metabolism
LigandNADP

Enzyme and pathway databases

UniPathway: a resource for the exploration and annotation of metabolic pathways

More...
UniPathwayi
UPA00058;UER00103

<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:
3-hydroxy-3-methylglutaryl-coenzyme A reductase (EC:1.1.1.34By similarity)
Short name:
HMG-CoA reductase
<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:hmgcr
<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>OrganismiXenopus laevis (African clawed frog)
<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 identifieri8355 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiAmphibiaBatrachiaAnuraPipoideaPipidaeXenopodinaeXenopusXenopus

Organism-specific databases

Xenopus laevis and tropicalis biology and genomics resource

More...
Xenbasei
XB-GENE-5840728, hmgcr.L

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini1 – 9CytoplasmicBy similarity9
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei10 – 39HelicalBy similarityAdd BLAST30
Topological domaini40 – 56LumenalBy similarityAdd BLAST17
Transmembranei57 – 78HelicalBy similarityAdd BLAST22
Topological domaini79 – 89CytoplasmicBy similarityAdd BLAST11
Transmembranei90 – 114HelicalBy similarityAdd BLAST25
Topological domaini115 – 123LumenalBy similarity9
Transmembranei124 – 149HelicalBy similarityAdd BLAST26
Topological domaini150 – 159CytoplasmicBy similarity10
Transmembranei160 – 187HelicalBy similarityAdd BLAST28
Topological domaini188 – 191LumenalBy similarity4
Transmembranei192 – 220HelicalBy similarityAdd BLAST29
Topological domaini221 – 249CytoplasmicBy similarityAdd BLAST29
Transmembranei250 – 276HelicalBy similarityAdd BLAST27
Topological domaini277 – 316LumenalBy similarityAdd BLAST40
Transmembranei317 – 341HelicalBy similarityAdd BLAST25
Topological domaini342 – 883CytoplasmicBy similarityAdd BLAST542

Keywords - Cellular componenti

Endoplasmic reticulum, Membrane, Peroxisome

<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

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001144261 – 8833-hydroxy-3-methylglutaryl-coenzyme A reductaseAdd BLAST883

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi282N-linked (GlcNAc...) asparagineSequence analysis1

Keywords - PTMi

Glycoprotein

<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

<p>This subsection of the 'Expression' section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

By estrogen; in male liver.1 Publication

<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

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homotetramer. Homodimer.

By similarity

<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
P20715

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

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>Regioni373 – 396DisorderedSequence analysisAdd BLAST24

<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 HMG-CoA reductase family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

Database of Orthologous Groups

More...
OrthoDBi
907394at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00643, HMG-CoA_reductase_classI, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.3270.10, 1 hit
3.30.70.420, 1 hit
3.90.770.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR002202, HMG_CoA_Rdtase
IPR023074, HMG_CoA_Rdtase_cat_sf
IPR023076, HMG_CoA_Rdtase_CS
IPR004554, HMG_CoA_Rdtase_eu_arc
IPR004816, HMG_CoA_Rdtase_metazoan
IPR023282, HMG_CoA_Rdtase_N
IPR009023, HMG_CoA_Rdtase_NAD(P)-bd_sf
IPR009029, HMG_CoA_Rdtase_sub-bd_dom_sf
IPR000731, SSD

The PANTHER Classification System

More...
PANTHERi
PTHR10572, PTHR10572, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00368, HMG-CoA_red, 1 hit
PF12349, Sterol-sensing, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00071, HMGCOARDTASE

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF55035, SSF55035, 1 hit
SSF56542, SSF56542, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR00920, 2A060605, 1 hit
TIGR00533, HMG_CoA_R_NADP, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00066, HMG_COA_REDUCTASE_1, 1 hit
PS00318, HMG_COA_REDUCTASE_2, 1 hit
PS01192, HMG_COA_REDUCTASE_3, 1 hit
PS50065, HMG_COA_REDUCTASE_4, 1 hit
PS50156, SSD, 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.

P20715-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MLSRLFRMHG QFVASHPWEV IVGTVTLTIC MMSMNMFTGN DKICGWNYAC
60 70 80 90 100
PKFEEDVLSS DIIILTITRC IAILYIYFQF QNLRQLGSKY ILGIAGLFTI
110 120 130 140 150
FSSFVFSTVV IHFLDKELTG LNEALPFFLL LIDLSKASAL AKFALSSNSQ
160 170 180 190 200
DEVRDNIARG MAILGPTFTL EALVECLVIG VGTMSGVRQL EIMCCFGCMS
210 220 230 240 250
VLANYFAFMT FFPACVSLVL ELSRESREGR PIWQLSQFAS VLEEEEDNKP
260 270 280 290 300
NPVTQRVKMI MSLGLVLVHA HSRWISEPSS QNSTSISDHE VTTMLDDMMP
310 320 330 340 350
KRVEPSMPLW QFYLSRMVTM DVEQIITLGL ALLLAVKYIF FEQTETESTF
360 370 380 390 400
SMKNPIISPV AVQKKQIESC CRREPEQEKT VHVSTTEEAS SKEETEAVIK
410 420 430 440 450
PLPLETSPKA KFIVGDSSPL ELSPEDKNTM FDLPEEPRPL DECVRILKNP
460 470 480 490 500
DKGAQYLTDA EVISLVNAKH IPAYKLETMM ESPREGVAIR RQMLSDKLPQ
510 520 530 540 550
RSALQSLPYK NYNYSLVMGA CCENVIGYMP IPVGVAGPLL LNNKEYQVPM
560 570 580 590 600
ATTEGCLVAS TNRGCRAIML GGGAKSRVLA DGMTRGPVVR LPTACDAAEV
610 620 630 640 650
KAWLDSAEGF KVIKDAFDST SRFARLGRLQ NCVAGRNLYI RFQSKTGDAM
660 670 680 690 700
GMNMISKVTE QALARLQEEF PDLHVLAVSG NYCTDKKPAA INWIEGRGKS
710 720 730 740 750
VVCEAIIPAK VVREVLKSST EALVEVNINK NFIGSAMAGS IGGYNAHAAN
760 770 780 790 800
IVTAIYIACG QDAAQNVGSS NCITIMEATG PTYEDLYISC TMPSIEIGTV
810 820 830 840 850
GGGTNLAPQQ ACLQMLGVQG ASTETPGKNA CQLAQIVCST VMAGELSLMA
860 870 880
ALAAGHLVKS HMVHNRSKIN LQDLPGTCTK KAA
Length:883
Mass (Da):96,720
Last modified:February 1, 1991 - 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:i53D6D1D9294A9A1F
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
M29258 mRNA Translation: AAA49740.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A35728

NCBI Reference Sequences

More...
RefSeqi
NP_001081280.1, NM_001087811.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
397750

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
xla:397750

<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
M29258 mRNA Translation: AAA49740.1
PIRiA35728
RefSeqiNP_001081280.1, NM_001087811.1

3D structure databases

SMRiP20715
ModBaseiSearch...

Protocols and materials databases

The DNASU plasmid repository

More...
DNASUi
397750

Genome annotation databases

GeneIDi397750
KEGGixla:397750

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
397750
XenbaseiXB-GENE-5840728, hmgcr.L

Phylogenomic databases

OrthoDBi907394at2759

Enzyme and pathway databases

UniPathwayiUPA00058;UER00103

Family and domain databases

CDDicd00643, HMG-CoA_reductase_classI, 1 hit
Gene3Di1.10.3270.10, 1 hit
3.30.70.420, 1 hit
3.90.770.10, 1 hit
InterProiView protein in InterPro
IPR002202, HMG_CoA_Rdtase
IPR023074, HMG_CoA_Rdtase_cat_sf
IPR023076, HMG_CoA_Rdtase_CS
IPR004554, HMG_CoA_Rdtase_eu_arc
IPR004816, HMG_CoA_Rdtase_metazoan
IPR023282, HMG_CoA_Rdtase_N
IPR009023, HMG_CoA_Rdtase_NAD(P)-bd_sf
IPR009029, HMG_CoA_Rdtase_sub-bd_dom_sf
IPR000731, SSD
PANTHERiPTHR10572, PTHR10572, 1 hit
PfamiView protein in Pfam
PF00368, HMG-CoA_red, 1 hit
PF12349, Sterol-sensing, 1 hit
PRINTSiPR00071, HMGCOARDTASE
SUPFAMiSSF55035, SSF55035, 1 hit
SSF56542, SSF56542, 1 hit
TIGRFAMsiTIGR00920, 2A060605, 1 hit
TIGR00533, HMG_CoA_R_NADP, 1 hit
PROSITEiView protein in PROSITE
PS00066, HMG_COA_REDUCTASE_1, 1 hit
PS00318, HMG_COA_REDUCTASE_2, 1 hit
PS01192, HMG_COA_REDUCTASE_3, 1 hit
PS50065, HMG_COA_REDUCTASE_4, 1 hit
PS50156, SSD, 1 hit

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 nameiHMDH_XENLA
<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: P20715
<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/Swiss-Prot: February 1, 1991
Last sequence update: February 1, 1991
Last modified: June 2, 2021
This is version 131 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 statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families
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