O75610 (LFTY1_HUMAN) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Left-right determination factor 1

Alternative name(s):
Left-right determination factor B
Protein lefty-1
Protein lefty-B

Gene names

Name:	LEFTY1
Synonyms:	LEFTB, LEFTYB
ORF Names:	UNQ278/PRO317

Organism

Homo sapiens (Human) [Reference proteome]

Taxonomic identifier

9606 [NCBI]

Taxonomic lineage

cellular organisms › Eukaryota › Opisthokonta › Metazoa › Eumetazoa › Bilateria › Deuterostomia › Chordata › Craniata › Vertebrata › Gnathostomata › Teleostomi › Euteleostomi › Sarcopterygii › Dipnotetrapodomorpha › Tetrapoda › Amniota › Mammalia › Theria › Eutheria › Boreoeutheria › Euarchontoglires › Primates › Haplorrhini › Simiiformes › Catarrhini › Hominoidea › Hominidae › Homininae › Homo

Protein attributes

Sequence length	366 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	Required for left-right axis determination as a regulator of LEFTY2 and NODAL.
Subcellular location	Secreted.
Post-translational modification	The processing of the protein may also occur at the second R-X-X-R site located at AA 132-135. Processing appears to be regulated in a cell-type specific manner.
Sequence similarities	Belongs to the TGF-beta family.

Ontologies

Keywords
Cellular component	Secreted
Coding sequence diversity	Polymorphism
Domain	Signal
Molecular function	Cytokine Developmental protein Growth factor
PTM	Disulfide bond Glycoprotein
Technical term	Complete proteome Reference proteome
Gene Ontology (GO)
Biological_process	cell growth Inferred from electronic annotation. Source: InterPro determination of left/right symmetry Inferred from sequence or structural similarity. Source: BHF-UCL heart morphogenesis Inferred from sequence or structural similarity. Source: BHF-UCL negative regulation of transcription from RNA polymerase II promoter Inferred from sequence or structural similarity. Source: BHF-UCL transforming growth factor beta receptor signaling pathway Traceable author statement Ref.1. Source: ProtInc
Cellular_component	extracellular space Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Signal peptide	1 – 21	21	Potential
	Propeptide	22 – 76	55	Or 135 Potential		PRO_0000033810
	Chain	77 – 366	290	Left-right determination factor 1		PRO_0000033811
Amino acid modifications
	Glycosylation	158	1	N-linked (GlcNAc...) Potential
	Disulfide bond	251 ↔ 264		By similarity
	Disulfide bond	263 ↔ 316		By similarity
	Disulfide bond	293 ↔ 351		By similarity
	Disulfide bond	297 ↔ 353		By similarity
Natural variations
	Natural variant	57	1	V → M. Corresponds to variant rs35273824 [ dbSNP | Ensembl ].		VAR_052567
	Natural variant	322	1	D → A. Corresponds to variant rs360057 [ dbSNP | Ensembl ].		VAR_024231
Experimental info
	Sequence conflict	92	1	L → S in BAD96434. Ref.3
	Sequence conflict	142	1	R → Q in BAD96434. Ref.3

Sequences

	Sequence		Length	Mass (Da)
	O75610 [UniParc]. Last modified November 1, 1998. Version 1. Checksum: BCF900C71ED9AA2A	FASTA	366	40,880
	10 20 30 40 50 60 MQPLWLCWAL WVLPLASPGA ALTGEQLLGS LLRQLQLKEV PTLDRADMEE LVIPTHVRAQ 70 80 90 100 110 120 YVALLQRSHG DRSRGKRFSQ SFREVAGRFL ALEASTHLLV FGMEQRLPPN SELVQAVLRL 130 140 150 160 170 180 FQEPVPKAAL HRHGRLSPRS ARARVTVEWL RVRDDGSNRT SLIDSRLVSV HESGWKAFDV 190 200 210 220 230 240 TEAVNFWQQL SRPRQPLLLQ VSVQREHLGP LASGAHKLVR FASQGAPAGL GEPQLELHTL 250 260 270 280 290 300 DLGDYGAQGD CDPEAPMTEG TRCCRQEMYI DLQGMKWAEN WVLEPPGFLA YECVGTCRQP 310 320 330 340 350 360 PEALAFKWPF LGPRQCIASE TDSLPMIVSI KEGGRTRPQV VSLPNMRVQK CSCASDGALV PRRLQP

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Characterization and mutation analysis of human LEFTY A and LEFTY B, homologues of murine genes implicated in left-right axis development." Kosaki K., Bassi M.T., Kosaki R., Lewin M., Belmont J., Schauer G., Casey B. Am. J. Hum. Genet. 64:712-721(1999) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA / MRNA]. Tissue: Teratocarcinoma.
[2]	"The secreted protein discovery initiative (SPDI), a large-scale effort to identify novel human secreted and transmembrane proteins: a bioinformatics assessment." Clark H.F., Gurney A.L., Abaya E., Baker K., Baldwin D.T., Brush J., Chen J., Chow B., Chui C., Crowley C., Currell B., Deuel B., Dowd P., Eaton D., Foster J.S., Grimaldi C., Gu Q., Hass P.E. , Heldens S., Huang A., Kim H.S., Klimowski L., Jin Y., Johnson S., Lee J., Lewis L., Liao D., Mark M.R., Robbie E., Sanchez C., Schoenfeld J., Seshagiri S., Simmons L., Singh J., Smith V., Stinson J., Vagts A., Vandlen R.L., Watanabe C., Wieand D., Woods K., Xie M.-H., Yansura D.G., Yi S., Yu G., Yuan J., Zhang M., Zhang Z., Goddard A.D., Wood W.I., Godowski P.J., Gray A.M. Genome Res. 13:2265-2270(2003) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
[3]	Suzuki Y., Sugano S., Totoki Y., Toyoda A., Takeda T., Sakaki Y., Tanaka A., Yokoyama S. Submitted (APR-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Colon.
[4]	"The DNA sequence and biological annotation of human chromosome 1." Gregory S.G., Barlow K.F., McLay K.E., Kaul R., Swarbreck D., Dunham A., Scott C.E., Howe K.L., Woodfine K., Spencer C.C.A., Jones M.C., Gillson C., Searle S., Zhou Y., Kokocinski F., McDonald L., Evans R., Phillips K. , Atkinson A., Cooper R., Jones C., Hall R.E., Andrews T.D., Lloyd C., Ainscough R., Almeida J.P., Ambrose K.D., Anderson F., Andrew R.W., Ashwell R.I.S., Aubin K., Babbage A.K., Bagguley C.L., Bailey J., Beasley H., Bethel G., Bird C.P., Bray-Allen S., Brown J.Y., Brown A.J., Buckley D., Burton J., Bye J., Carder C., Chapman J.C., Clark S.Y., Clarke G., Clee C., Cobley V., Collier R.E., Corby N., Coville G.J., Davies J., Deadman R., Dunn M., Earthrowl M., Ellington A.G., Errington H., Frankish A., Frankland J., French L., Garner P., Garnett J., Gay L., Ghori M.R.J., Gibson R., Gilby L.M., Gillett W., Glithero R.J., Grafham D.V., Griffiths C., Griffiths-Jones S., Grocock R., Hammond S., Harrison E.S.I., Hart E., Haugen E., Heath P.D., Holmes S., Holt K., Howden P.J., Hunt A.R., Hunt S.E., Hunter G., Isherwood J., James R., Johnson C., Johnson D., Joy A., Kay M., Kershaw J.K., Kibukawa M., Kimberley A.M., King A., Knights A.J., Lad H., Laird G., Lawlor S., Leongamornlert D.A., Lloyd D.M., Loveland J., Lovell J., Lush M.J., Lyne R., Martin S., Mashreghi-Mohammadi M., Matthews L., Matthews N.S.W., McLaren S., Milne S., Mistry S., Moore M.J.F., Nickerson T., O'Dell C.N., Oliver K., Palmeiri A., Palmer S.A., Parker A., Patel D., Pearce A.V., Peck A.I., Pelan S., Phelps K., Phillimore B.J., Plumb R., Rajan J., Raymond C., Rouse G., Saenphimmachak C., Sehra H.K., Sheridan E., Shownkeen R., Sims S., Skuce C.D., Smith M., Steward C., Subramanian S., Sycamore N., Tracey A., Tromans A., Van Helmond Z., Wall M., Wallis J.M., White S., Whitehead S.L., Wilkinson J.E., Willey D.L., Williams H., Wilming L., Wray P.W., Wu Z., Coulson A., Vaudin M., Sulston J.E., Durbin R.M., Hubbard T., Wooster R., Dunham I., Carter N.P., McVean G., Ross M.T., Harrow J., Olson M.V., Beck S., Rogers J., Bentley D.R. Nature 441:315-321(2006) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
[5]	"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. Tissue: Pancreas and Spleen.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AF081507 , AF081504, AF081505, AF081506 Genomic DNA. Translation: AAC33967.1. AF081512 mRNA. Translation: AAD48144.1. AY358873 mRNA. Translation: AAQ89232.1. AK222714 mRNA. Translation: BAD96434.1. AL117348 Genomic DNA. Translation: CAI21799.1. BC027883 mRNA. Translation: AAH27883.1.
RefSeq	NP_066277.1. NM_020997.3.
UniGene	Hs.656214.
3D structure databases
ProteinModelPortal	O75610.
SMR	O75610. Positions 262-354.
ModBase	Search...
MobiDB	Search...
Protein-protein interaction databases
STRING	9606.ENSP00000272134.
Proteomic databases
PaxDb	O75610.
PRIDE	O75610.
Protocols and materials databases
DNASU	10637.
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
Ensembl	ENST00000272134; ENSP00000272134; ENSG00000243709.
GeneID	10637.
KEGG	hsa:10637.
UCSC	uc001hpo.3. human.
Organism-specific databases
CTD	10637.
GeneCards	GC01M226073.
HGNC	HGNC:6552. LEFTY1.
MIM	603037. gene.
neXtProt	NX_O75610.
PharmGKB	PA30332.
GenAtlas	Search...
Phylogenomic databases
eggNOG	NOG266606.
HOGENOM	HOG000113317.
HOVERGEN	HBG074429.
InParanoid	O75610.
KO	K04668.
OMA	VEGMVIP.
OrthoDB	EOG71VST0.
PhylomeDB	O75610.
TreeFam	TF106462.
Enzyme and pathway databases
Reactome	REACT_111045. Developmental Biology.
Gene expression databases
Bgee	O75610.
CleanEx	HS_LEFTY1.
Genevestigator	O75610.
Family and domain databases
InterPro	IPR003942. LRDF. IPR001839. TGF-b_C. IPR001111. TGF-b_N. IPR015615. TGF-beta-rel. IPR017948. TGFb_CS. [Graphical view]
PANTHER	PTHR11848. PTHR11848. 1 hit.
Pfam	PF00019. TGF_beta. 1 hit. PF00688. TGFb_propeptide. 1 hit. [Graphical view]
PIRSF	PIRSF037402. TGFb4. 1 hit.
PRINTS	PR01427. TGFBETA4.
SMART	SM00204. TGFB. 1 hit. [Graphical view]
PROSITE	PS00250. TGF_BETA_1. 1 hit. PS51362. TGF_BETA_2. 1 hit. [Graphical view]
ProtoNet	Search...
Other
ChiTaRS	LEFTY1. human.
GenomeRNAi	10637.
NextBio	40429.
PMAP-CutDB	O75610.
PRO	O75610.
SOURCE	Search...

Entry information

Entry name

LFTY1_HUMAN

Accession

Primary (citable) accession number: O75610
Secondary accession number(s): Q53H67, Q5TE94

Entry history

Integrated into UniProtKB/Swiss-Prot:	February 21, 2001
Last sequence update:	November 1, 1998
Last modified:	February 19, 2014
This is version 122 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Chordata Protein Annotation Program

Disclaimer

Any 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.