Reviewed, UniProtKB/Swiss-Prot P50596 (LEP_RAT)

Names and origin

Protein names

Recommended name:
    Leptin
Alternative name(s):
    Obesity factor

Gene names

Name:	Lep
Synonyms:	Ob

Organism

Rattus norvegicus (Rat)

Taxonomic identifier

10116 [NCBI]

Taxonomic lineage

Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Rattus

Protein attributes

Sequence length	167 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is further processed into a mature form.
Protein existence	Evidence at transcript level.

General annotation (Comments)

Function	May function as part of a signaling pathway that acts to regulate the size of the body fat depot. An increase in the level of Lep may act directly or indirectly on the CNS to inhibit food intake and/or regulate energy expenditure as part of a homeostatic mechanism to maintain constancy of the adipose mass.
Subcellular location	Secreted Probable.
Sequence similarities	Belongs to the leptin family.

Ontologies

Keywords
Cellular component	Secreted
Disease	Obesity
Domain	Signal
PTM	Disulfide bond
Gene Ontology (GO)
Biological process	JAK-STAT cascade Traceable author statement. Source: RGD adult feeding behavior Inferred from sequence or structural similarity. Source: HGNC cAMP-mediated signaling Traceable author statement. Source: RGD energy reserve metabolic process Inferred from direct assay. Source: RGD fatty acid catabolic process Inferred from direct assay. Source: RGD leptin-mediated signaling pathway Inferred from direct assay. Source: RGD negative regulation of appetite Inferred from sequence or structural similarity. Source: HGNC negative regulation of metabolic process Inferred from direct assay. Source: RGD ovulation from ovarian follicle Inferred from direct assay. Source: RGD positive regulation of MAPKKK cascade Inferred from direct assay. Source: RGD
Cellular component	extracellular space Inferred from direct assay. Source: HGNC
Molecular function	cytokine activity Traceable author statement. Source: RGD hormone activity Inferred from direct assay. Source: RGD peptide hormone receptor binding Inferred from direct assay. Source: RGD
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Signal peptide	1 – 21	21	Potential
	Chain	22 – 167	146	Leptin		PRO_0000017690
Amino acid modifications
	Disulfide bond	117 ↔ 167		By similarity
Experimental info
	Sequence conflict	32	1	K → T Ref.2
	Sequence conflict	163	1	L → V in AAC52514. Ref.4

Sequences

	Sequence		Length	Mass (Da)
	P50596-1 [UniParc]. Last modified October 1, 1996. Version 1. Checksum: 3B5B563DA42EC84E	FASTA	167	18,866
	10 20 30 40 50 60 MCWRPLCRFL WLWSYLSYVQ AVPIHKVQDD TKTLIKTIVT RINDISHTQS VSARQRVTGL 70 80 90 100 110 120 DFIPGLHPIL SLSKMDQTLA VYQQILTSLP SQNVLQIAHD LENLRDLLHL LAFSKSCSLP 130 140 150 160 QTRGLQKPES LDGVLEASLY STEVVALSRL QGSLQDILQQ LDLSPEC

References

[1]	"Molecular cloning of rat obese cDNA and augmented gene expression in genetically obese Zucker fatty (fa/fa) rats." Ogawa Y., Masuzaki H., Isse N., Okazaki T., Mori K., Shigemoto M., Satoh N., Tamura N., Hosoda K., Yoshimasa Y., Jingami H., Kawada T., Nakao K. J. Clin. Invest. 96:1647-1652(1995) [PubMed: 7657834] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Tissue: Testis.
[2]	"Enhanced expression of rat obese (ob) gene in adipose tissues of ventromedial hypothalamus (VMH)-lesioned rats." Funahashi T., Shimomura I., Hiraoka H., Arai T., Takahashi M., Nakamura T., Nozaki S., Yamashita S., Takemura K., Tokunaga K. Biochem. Biophys. Res. Commun. 211:469-475(1995) [PubMed: 7794258] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Strain: Sprague-Dawley. Tissue: Adipose tissue.
[3]	"Cloning of rat obese cDNA and its expression in obese rats." Murakami T., Shima K. Biochem. Biophys. Res. Commun. 209:944-952(1995) [PubMed: 7733988] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Strain: Leto, OLETF and Zucker. Tissue: Adipose tissue.
[4]	Donohoue P.A., Sivitz W.I., Bailey H.L. Submitted (FEB-1996) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 14-167. Strain: Sprague-Dawley. Tissue: Adipose tissue.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	D45862 mRNA. Translation: BAA08296.1. S78586 mRNA. Translation: AAB34657.2. D49653 mRNA. Translation: BAA08529.1. U48849 mRNA. Translation: AAC52514.1.
IPI	IPI00199521.
PIR	LTRT. PC4034.
RefSeq	NP_037208.1.
UniGene	Rn.44444
3D structure databases
SMR	P50596. Positions 24-167.
ModBase	Search...
Protein-protein interaction databases
STRING	P50596.
Genome annotation databases
Ensembl	ENSRNOT00000008020; ENSRNOP00000008020; ENSRNOG00000006059; Rattus norvegicus. [Genome view]
GeneID	25608.
KEGG	rno:25608.
UCSC	D49653. rat.
Organism-specific databases
CTD	25608.
RGD	3000. Lep.
Phylogenomic databases
eggNOG	roNOG17007.
HOVERGEN	P50596.
InParanoid	P50596.
OMA	GLDFIPG.
OrthoDB	EOG9F7R5H.
PhylomeDB	P50596.
Gene expression databases
ArrayExpress	P50596.
Genevestigator	P50596.
GermOnline	ENSRNOG00000006059. Rattus norvegicus.
Family and domain databases
InterPro	IPR009079. 4_helix_cytokine-like_core. IPR000065. Leptin. [Graphical view]
PANTHER	PTHR11724. Leptin. 1 hit.
Pfam	PF02024. Leptin. 1 hit. [Graphical view]
PIRSF	PIRSF001837. Leptin. 1 hit.
PRINTS	PR00495. LEPTIN.
ProDom	PD005698. Leptin. 1 hit. [Graphical view] [Entries sharing at least one domain]
ProtoNet	Search...
Other Resources
NextBio	607339.

Entry information

Entry name

LEP_RAT

Accession

Primary (citable) accession number: P50596

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 1, 1996
Last sequence update:	October 1, 1996
Last modified:	January 19, 2010
This is version 73 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HPI (Human Proteome Initiative)