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Entry version 93 (10 Feb 2021)
Sequence version 1 (01 Mar 2002)
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Protein

Klotho

Gene

KL

Organism
Macaca fascicularis (Crab-eating macaque) (Cynomolgus monkey)
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

May have weak glycosidase activity towards glucuronylated steroids. However, it lacks essential active site Glu residues at positions 241 and 874, suggesting it may be inactive as a glycosidase in vivo. May be involved in the regulation of calcium and phosphorus homeostasis by inhibiting the synthesis of active vitamin D (By similarity).

Essential factor for the specific interaction between FGF23 and FGFR1 (By similarity).

By similarity

The Klotho peptide generated by cleavage of the membrane-bound isoform may be an anti-aging circulating hormone which would extend life span by inhibiting insulin/IGF1 signaling.

By similarity

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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>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 functionGlycosidase, Hydrolase

<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_and_taxonomy_section">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:
Klotho (EC:3.2.1.31)
Cleaved into the following chain:
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:KL
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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>OrganismiMacaca fascicularis (Crab-eating macaque) (Cynomolgus monkey)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 identifieri9541 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniCercopithecidaeCercopithecinaeMacaca
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000233100 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Unplaced

<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_location_section">'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 domaini36 – 983ExtracellularSequence analysisAdd BLAST948
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'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>Transmembranei984 – 1004HelicalSequence analysisAdd BLAST21
Topological domaini1005 – 1014CytoplasmicSequence analysis10

Keywords - Cellular componenti

Cell membrane, Membrane, Secreted

<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 denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 35Sequence analysisAdd BLAST35
<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_000004224536 – 1014KlothoAdd BLAST979
ChainiPRO_000004224636 – ?Klotho peptideBy similarity

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">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>Glycosylationi161N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi285N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi346N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi609N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi614N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi696N-linked (GlcNAc...) asparagineSequence analysis1

Keywords - PTMi

Glycoprotein

<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_section">'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_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer.

Interacts with FGF23 and FGFR1.

By similarity

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
9541.XP_005586019.1

<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
Q8WP17

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>Regioni59 – 508Glycosyl hydrolase-1 1Add BLAST450
Regioni517 – 955Glycosyl hydrolase-1 2Add BLAST439

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

<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

Keywords - Domaini

Repeat, Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0626, Eukaryota

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001360, Glyco_hydro_1
IPR033132, Glyco_hydro_1_N_CS
IPR017853, Glycoside_hydrolase_SF
IPR028546, Klotho

The PANTHER Classification System

More...
PANTHERi
PTHR10353, PTHR10353, 5 hits
PTHR10353:SF10, PTHR10353:SF10, 5 hits

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00232, Glyco_hydro_1, 3 hits

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00131, GLHYDRLASE1

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF51445, SSF51445, 2 hits

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00653, GLYCOSYL_HYDROL_F1_2, 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_length">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>Sequences (2)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 2 <p>This subsection of the 'Sequence' section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket
Isoform 1 (identifier: Q8WP17-1) [UniParc]FASTAAdd to basket
Also known as: Membrane-bound

This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MPASAPPRRP RPPPPSLSLS LLLVLLGLAG RRLRAEPGDG AQTWARFARP
60 70 80 90 100
PAPEAAGLFQ GTFPDGFLWA VGSAAYQTEG GWQQHGKGAS IWDTFTHHPL
110 120 130 140 150
APPGDSRIAN VPSGAPSPLQ PATGDVASDS YNNVFRDTEA LRELGVTHYR
160 170 180 190 200
FSISWARVLP NGSAGVPNRE GLRYYRRLLE RLRELGVQPV VTLYHWDLPQ
210 220 230 240 250
RLQDAYGGWA NRALADHFRD YAELCFRHFG GQVKYWITID NPYVVAWHGY
260 270 280 290 300
ATGRLAPGIR GSPRLGYLVA HNLLLAHAKV WHLYNTSFRP TQGGQVSIAL
310 320 330 340 350
SSHWINPRRM TDHSIKECQK SLDFVLGWFA KPIFIDGDYP ESMKNNLSSL
360 370 380 390 400
LPDFTESEKK FIKGTADFFA LSFGPTLSFQ LLDPHMKFRQ LESPSLRQLL
410 420 430 440 450
SWIDLEYNHP QIFIVENGWF VSGTTKRDDA KYMYYLKKFI METLKAIKLD
460 470 480 490 500
GVDVIGYTAW SLMDGFEWHR GYSIRRGLFY VDFLSQEKTL LPKSSALFYQ
510 520 530 540 550
KLIEKNGFPP LPENQPLEGT FPCDFAWGIV DNYIQVDTTL SQFTDLNVYL
560 570 580 590 600
WDVHHSKRLI KVDGVVTKKR KSYCVDFAAI QPQITLLQEM HVTHFRFSLD
610 620 630 640 650
WALILPLGNQ SQVNHTILQY YRCMVSELVR VNITPVVALW QPVAPNQGLP
660 670 680 690 700
RLLARQGAWE NPYTALAFAE YARLCFQELG HHVKLWITMN EPYTRNMTYS
710 720 730 740 750
AGHNLLKAHA LAWHVYNEKF RHAQNGKISI ALQADWIEPA CPFSQKDKEV
760 770 780 790 800
AERVLEFDIG WLAEPIFGSG DYPWVMRDWL NQRNNFLLPY FTEDEKKLIQ
810 820 830 840 850
GTFDFLALSH YTTILVDSEK EDPIKYNDYL EVQEMTDITW LNSPSQVAVV
860 870 880 890 900
PWGLRKVLNW LKFKYGDLPM YIISNGIDDG LHAEDDQLRV YYMQNYINEA
910 920 930 940 950
LKAHILDGIN LCGYFAYSFN DRTAPRFGLY RFAADQFEPK PSMKHYRKII
960 970 980 990 1000
DSNGFPGPET LEKFCPEEFT VCTECSFFHT RKPLVAFIAF LFFAFIVSLS
1010
LIFYYSKKGR RRYQ
Length:1,014
Mass (Da):116,469
Last modified:March 1, 2002 - 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:i00669CD244A4DD0F
GO
Isoform 2 (identifier: Q8WP17-2) [UniParc]FASTAAdd to basket
Also known as: Secreted

The sequence of this isoform differs from the canonical sequence as follows:
     537-551: DTTLSQFTDLNVYLW → SQLAKPISSLTKPYH
     552-1014: Missing.

Show »
Length:551
Mass (Da):62,274
Checksum:i45F4EAD2358DDBAA
GO

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting.<p><a href='/help/var_seq' target='_top'>More...</a></p>Alternative sequenceiVSP_015826537 – 551DTTLS…NVYLW → SQLAKPISSLTKPYH in isoform 2. 1 PublicationAdd BLAST15
Alternative sequenceiVSP_015827552 – 1014Missing in isoform 2. 1 PublicationAdd BLAST463

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
AF064053 mRNA Translation: AAC77917.1
AF064054 mRNA Translation: AAC77918.1

Keywords - Coding sequence diversityi

Alternative splicing

<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

<p>This subsection of the <a href="http://www.uniprot.org/manual/cross_references_section">Cross-references</a> section provides links to various web resources that are relevant for a specific protein.<p><a href='/help/web_resource' target='_top'>More...</a></p>Web resourcesi

Protein Spotlight

The thread of life - Issue 65 of December 2005

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF064053 mRNA Translation: AAC77917.1
AF064054 mRNA Translation: AAC77918.1

3D structure databases

SMRiQ8WP17
ModBaseiSearch...

Protein-protein interaction databases

STRINGi9541.XP_005586019.1

Phylogenomic databases

eggNOGiKOG0626, Eukaryota

Family and domain databases

InterProiView protein in InterPro
IPR001360, Glyco_hydro_1
IPR033132, Glyco_hydro_1_N_CS
IPR017853, Glycoside_hydrolase_SF
IPR028546, Klotho
PANTHERiPTHR10353, PTHR10353, 5 hits
PTHR10353:SF10, PTHR10353:SF10, 5 hits
PfamiView protein in Pfam
PF00232, Glyco_hydro_1, 3 hits
PRINTSiPR00131, GLHYDRLASE1
SUPFAMiSSF51445, SSF51445, 2 hits
PROSITEiView protein in PROSITE
PS00653, GLYCOSYL_HYDROL_F1_2, 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 nameiKLOT_MACFA
<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: Q8WP17
Secondary accession number(s): Q8WP18
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: October 11, 2005
Last sequence update: March 1, 2002
Last modified: February 10, 2021
This is version 93 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

Keywords - Technical termi

Reference proteome

Documents

  1. Glycosyl hydrolases
    Classification of glycosyl hydrolase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families
  3. Protein Spotlight
    Protein Spotlight articles and cited UniProtKB/Swiss-Prot entries
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