klotho

General Information (Source: NCBI Gene,UniProt)

Text mining Term	klotho
UniProt ID	KLOT_RAT
Name	Klotho peptide Klotho
Gene Names	Kl
Taxonomy	Rattus norvegicus

General annotation

Function	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). 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).
Subcellular location	Cell membrane; Single-pass type I membrane protein (By similarity). Note=Its shedding leads to a soluble peptide. Klotho peptide: Secreted (By similarity).

Function

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). 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).

Subcellular location

Cell membrane; Single-pass type I membrane protein (By similarity). Note=Its shedding leads to a soluble peptide. Klotho peptide: Secreted (By similarity).

Gene Ontology

GO:0005886	plasma membrane	CC
GO:0016021	integral to membrane	CC
GO:0007568	aging	BP
GO:0005975	carbohydrate metabolic process	BP
GO:0005576	extracellular region	CC
GO:0002526	acute inflammatory response	BP
GO:0043169	cation binding	MF
GO:0004566	beta-glucuronidase activity	MF

Sequence

>gi|13786168|ref|NP_112626.1| klotho precursor [Rattus norvegicus]
MPARAPPRRLPRLLLLRLLSLHLLLLTLRARCLSAEPGQGAQTWARFARPPVPEASGLLHDTFPDGFLWA
VGSAAYQTEGGWRQHGKGASIWDTFTHHPRAIPEDSPIVMAPSGAPLPPLPSTGDVASDSYNNVYRDTEG
LRELGVTHYRFSISWARVLPNGTAGTPNREGLRYYRRLLERLRELGVQPVVTLYHWDLPQRLQDTYGGWA
NRALADHFRDYAELCFRHFGGQVKYWITIDNPYVVAWHGYATGRLAPGVRGSSRLGYLVAHNLLLAHAKV
WRLYNTSFRPTQGGRVSIALGSHWITPRRMTDYHIRECQKSLDFVLGWFAKPIFIDGDYPKSMKNNLSSL
LPDFTESEKRFIRGTADFFALSFGPTLSFQLLDPSMKFRQLESPSLRQLLSWIDLEYNHPQIFIVENGWF
VSGTTRRDDAKYMYYLKKFIMESLKAIRLDGVDVIGYTAWSLMDGFEWHRGYSIRRGLFYVDFLSQDKEL
LPKSSALFYQKLIENNGFPPLPENQPLEGTFPCDFAWGVVDNYIQVDPTLSQFTDPNVYLWDVHHSKRLI
KVDGVVAKKRKPYCVDFSAIRPQITLLREMRVTHFRFSLDWALILPLGNQTQVNRTVLHFYRCMVSELVH
ANITPVVALWQPATPHQGLPHALAKHGAWENPHTALAFADYANLCFEELGHWVKFWITINEPNSRNMTYR
AGHHLLKAHALAWHLYDDKFRAAQKGKISIALQVDWIEPACPFSQKDKEVAERVLEFDVGWLAEPIFGSG
DYPHVMREWLNQKNNFLLPYFTEDEKKLIRGSFDFLALSHYTTILVDWEKEDPIKYNDYLEVQEMTDITW
LNSPNQVAVVPWGLRKALNWLRFKYGDLPMFVTANGIDDDPHAEQDSLRMYYIKNYVNEALKAYVLDGIN
LCGYFAYSLSDRSVPKSGFYRYAANQFEPKPSIKHYRKIIDNNGFLGSGTLGRFCPEEYTVCTGCGFFQT
RKSLLAFISFLVFAFVTSLALIYYYSKKGRRRYK

Database Cross Reference

Ensembl Gene	ENSRNOT00000001449
UniGene	Rn.30061
PDB
RefSeq	NP_112626.1
Pfam	PF00232

PTID

klotho

General Information (Source: NCBI Gene,UniProt)

General annotation

Gene Ontology

Sequence

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Database Cross Reference