O95490 (LPHN2_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 107.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Latrophilin-2 Alternative name(s): Calcium-independent alpha-latrotoxin receptor 2 Short name=CIRL-2 Latrophilin homolog 1 Lectomedin-1 | ||||
| Gene names |
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| Organism | Homo sapiens (Human) [Reference proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 1459 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Calcium-independent receptor of low affinity for alpha-latrotoxin, an excitatory neurotoxin present in black widow spider venom which triggers massive exocytosis from neurons and neuroendocrine cells. Receptor propably implicated in the regulation of exocytosis By similarity. |
| Subunit structure | Forms a heterodimer, consisting of a large extracellular region (p120) non-covalently linked to a seven-transmembrane moiety (p85) By similarity. |
| Subcellular location | |
| Tissue specificity | Expressed very widely in all normal tissues tested. Expression is variable in tumor cell lines, apparently elevated in some lines and absent or markedly reduced in others. Ref.1 |
| Post-translational modification | Proteolytically cleaved into 2 subunits, an extracellular subunit and a seven-transmembrane subunit By similarity. |
| Sequence similarities | Belongs to the G-protein coupled receptor 2 family. LN-TM7 subfamily. Contains 1 GPS domain. Contains 1 olfactomedin-like domain. Contains 1 SUEL-type lectin domain. |
| Sequence caution | The sequence CAI22406.1 differs from that shown. Reason: Erroneous gene model prediction. |
Ontologies
| Keywords | |
|---|---|
| Cellular component | Cell membrane Membrane |
| Coding sequence diversity | Alternative splicing |
| Domain | Signal Transmembrane Transmembrane helix |
| Ligand | Lectin |
| Molecular function | G-protein coupled receptor Receptor Transducer |
| PTM | Disulfide bond Glycoprotein Phosphoprotein |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | neuropeptide signaling pathway Inferred from electronic annotation. Source: InterPro |
| Cellular_component | integral to membrane Non-traceable author statement Ref.1. Source: UniProtKB plasma membraneInferred from electronic annotation. Source: UniProtKB-SubCell |
| Molecular_function | G-protein coupled receptor activity Traceable author statement PubMed 15203201. Source: GDB carbohydrate bindingInferred from electronic annotation. Source: InterPro latrotoxin receptor activityNon-traceable author statement Ref.1. Source: UniProtKB |
| Complete GO annotation... | |
Alternative products
| This entry describes 7 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: O95490-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: O95490-2) Also known as: Lectomedin-1 gamma; The sequence of this isoform differs from the canonical sequence as follows: 595-607: Missing. 1167-1209: Missing. | ||||||
| Isoform 3 (identifier: O95490-3) Also known as: Lectomedin-1 beta; The sequence of this isoform differs from the canonical sequence as follows: 595-607: Missing. 1134-1136: SRI → DIH 1137-1459: Missing. | ||||||
| Isoform 4 (identifier: O95490-4) Also known as: Lectomedin-1 alpha; The sequence of this isoform differs from the canonical sequence as follows: 595-607: Missing. 1167-1209: Missing. 1210-1233: HSLNNARDTSAMDTLPLNGNFNNS → LTSHGLRAHLQDLYHLELLLGQIA 1234-1459: Missing. | ||||||
| Isoform 5 (identifier: O95490-5) The sequence of this isoform differs from the canonical sequence as follows: 1167-1209: Missing. | ||||||
| Note: No experimental confirmation. | ||||||
| Isoform 6 (identifier: O95490-6) The sequence of this isoform differs from the canonical sequence as follows: 1034-1034: K → NNYRVCDGYYNTDLPG | ||||||
| Isoform 7 (identifier: O95490-7) The sequence of this isoform differs from the canonical sequence as follows: 595-607: Missing. 1034-1034: K → NNYRVCDGYYNTDLPG | ||||||
| Note: No experimental confirmation. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||
Molecule processing | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 25 | 25 | Potential | ||||||||
| Chain | 26 – 1459 | 1434 | Latrophilin-2 | PRO_0000012910 | |||||||
Regions | |||||||||||
| Topological domain | 39 – 851 | 813 | Extracellular Potential | ||||||||
| Transmembrane | 852 – 872 | 21 | Helical; Name=1; Potential | ||||||||
| Topological domain | 873 – 880 | 8 | Cytoplasmic Potential | ||||||||
| Transmembrane | 881 – 901 | 21 | Helical; Name=2; Potential | ||||||||
| Topological domain | 902 – 907 | 6 | Extracellular Potential | ||||||||
| Transmembrane | 908 – 928 | 21 | Helical; Name=3; Potential | ||||||||
| Topological domain | 929 – 952 | 24 | Cytoplasmic Potential | ||||||||
| Transmembrane | 953 – 973 | 21 | Helical; Name=4; Potential | ||||||||
| Topological domain | 974 – 990 | 17 | Extracellular Potential | ||||||||
| Transmembrane | 991 – 1011 | 21 | Helical; Name=5; Potential | ||||||||
| Topological domain | 1012 – 1037 | 26 | Cytoplasmic Potential | ||||||||
| Transmembrane | 1038 – 1058 | 21 | Helical; Name=6; Potential | ||||||||
| Topological domain | 1059 – 1062 | 4 | Extracellular Potential | ||||||||
| Transmembrane | 1063 – 1083 | 21 | Helical; Name=7; Potential | ||||||||
| Topological domain | 1084 – 1459 | 376 | Cytoplasmic Potential | ||||||||
| Domain | 41 – 130 | 90 | SUEL-type lectin | ||||||||
| Domain | 135 – 394 | 260 | Olfactomedin-like | ||||||||
| Domain | 784 – 836 | 53 | GPS | ||||||||
Sites | |||||||||||
| Site | 824 – 825 | 2 | Cleavage By similarity | ||||||||
Amino acid modifications | |||||||||||
| Modified residue | 1381 | 1 | Phosphoserine By similarity | ||||||||
| Modified residue | 1387 | 1 | Phosphoserine By similarity | ||||||||
| Modified residue | 1430 | 1 | Phosphoserine Ref.10 | ||||||||
| Glycosylation | 99 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 331 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 520 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 629 | 1 | N-linked (GlcNAc...) Ref.8 | ||||||||
| Glycosylation | 731 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 744 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 787 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 792 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Glycosylation | 813 | 1 | N-linked (GlcNAc...) Potential | ||||||||
| Disulfide bond | 136 ↔ 318 | By similarity | |||||||||
Natural variations | |||||||||||
| Alternative sequence | 595 – 607 | 13 | Missing in isoform 2, isoform 3, isoform 4 and isoform 7. | VSP_010104 | |||||||
| Alternative sequence | 1034 | 1 | K → NNYRVCDGYYNTDLPG in isoform 6 and isoform 7. | VSP_042267 | |||||||
| Alternative sequence | 1134 – 1136 | 3 | SRI → DIH in isoform 3. | VSP_010105 | |||||||
| Alternative sequence | 1137 – 1459 | 323 | Missing in isoform 3. | VSP_010106 | |||||||
| Alternative sequence | 1167 – 1209 | 43 | Missing in isoform 2, isoform 4 and isoform 5. | VSP_010107 | |||||||
| Alternative sequence | 1210 – 1233 | 24 | HSLNN…NFNNS → LTSHGLRAHLQDLYHLELLL GQIA in isoform 4. | VSP_010108 | |||||||
| Alternative sequence | 1234 – 1459 | 226 | Missing in isoform 4. | VSP_010109 | |||||||
Experimental info | |||||||||||
| Sequence conflict | 1059 | 1 | N → S in ABL59902. Ref.7 | ||||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Isolation and characterisation of a human homologue of the latrophilin gene from a region of 1p31.1 implicated in breast cancer." White G.R.M., Varley J.M., Heighway J. Oncogene 17:3513-3519(1998) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), TISSUE SPECIFICITY. |
| [2] | "Genomic structure and expression profile of LPHH1, a 7TM gene variably expressed in breast cancer cell lines." White G.R.M., Varley J.M., Heighway J. Biochim. Biophys. Acta 1491:75-92(2000) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. |
| [3] | Hayflick J.S. Submitted (NOV-1998) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 2; 3 AND 4). |
| [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. Bentley D.R.Nature 441:315-321(2006) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [5] | Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [6] | "Prediction of the coding sequences of unidentified human genes. XI. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro." Nagase T., Ishikawa K., Suyama M., Kikuno R., Miyajima N., Tanaka A., Kotani H., Nomura N., Ohara O. DNA Res. 5:277-286(1998) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 439-1459 (ISOFORM 1). Tissue: Brain. |
| [7] | "Discovery of tissue-specific exons using comprehensive human exon microarrays." Clark T.A., Schweitzer A.C., Chen T.X., Staples M.K., Lu G., Wang H., Williams A., Blume J.E. Genome Biol. 8:R64.1-R64.16(2007) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 973-1070 (ISOFORM 6). |
| [8] | "Glycoproteomics analysis of human liver tissue by combination of multiple enzyme digestion and hydrazide chemistry." Chen R., Jiang X., Sun D., Han G., Wang F., Ye M., Wang L., Zou H. J. Proteome Res. 8:651-661(2009) [PubMed] [Europe PMC] [Abstract] Cited for: GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-629, MASS SPECTROMETRY. Tissue: Liver. |
| [9] | "Initial characterization of the human central proteome." Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T., Bennett K.L., Superti-Furga G., Colinge J. BMC Syst. Biol. 5:17-17(2011) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. |
| [10] | "System-wide temporal characterization of the proteome and phosphoproteome of human embryonic stem cell differentiation." Rigbolt K.T., Prokhorova T.A., Akimov V., Henningsen J., Johansen P.T., Kratchmarova I., Kassem M., Mann M., Olsen J.V., Blagoev B. Sci. Signal. 4:RS3-RS3(2011) [PubMed] [Europe PMC] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-1430, MASS SPECTROMETRY. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AJ131581 mRNA. Translation: CAA10458.1. AJ244492 AJ244516 Genomic DNA. Translation: CAB60229.1.AF104266 mRNA. Translation: AAD54675.1. AF104938 mRNA. Translation: AAD54676.1. AF104939 mRNA. Translation: AAD54677.1. AL359705, AC113949, AL157903 Genomic DNA. Translation: CAH71340.1. AL359705, AC113949, AL157903 Genomic DNA. Translation: CAH71341.1. AL359705, AC113949, AL157903 Genomic DNA. Translation: CAH71342.1. AL359705, AC113949, AL157903 Genomic DNA. Translation: CAH71343.1. AL359705, AC113949, AL157903 Genomic DNA. Translation: CAH71345.1. AL359705, AC113949, AL157903 Genomic DNA. Translation: CAH71346.1. AL359705, AC113949, AL157903 Genomic DNA. Translation: CAH71347.1. AL157903, AC113949, AL359705 Genomic DNA. Translation: CAI22397.1. AL157903, AC113949, AL359705 Genomic DNA. Translation: CAI22398.1. AL157903, AC113949, AL359705 Genomic DNA. Translation: CAI22399.1. AL157903, AC113949, AL359705 Genomic DNA. Translation: CAI22401.1. AL157903, AC113949, AL359705 Genomic DNA. Translation: CAI22402.1. AL157903, AC113949, AL359705 Genomic DNA. Translation: CAI22403.1. AL157903, AC113949, AL359705 Genomic DNA. Translation: CAI22405.1. AL157903, AC113949 Genomic DNA. Translation: CAI22406.1. Sequence problems. CH471059 Genomic DNA. Translation: EAX06327.1. CH471059 Genomic DNA. Translation: EAX06330.1. CH471059 Genomic DNA. Translation: EAX06333.1. CH471059 Genomic DNA. Translation: EAX06335.1. CH471059 Genomic DNA. Translation: EAX06336.1. CH471059 Genomic DNA. Translation: EAX06339.1. AB018329 mRNA. Translation: BAA34506.1. DQ925675 mRNA. Translation: ABL59902.1. |
| IPI | IPI00017562. IPI00164345. IPI00410232. IPI00410234. |
| RefSeq | NP_036434.1. NM_012302.2. |
| UniGene | Hs.24212. Hs.649282. |
3D structure databases | |
| ProteinModelPortal | O95490. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | O95490. 2 interactions. |
| MINT | MINT-143559. |
| STRING | 9606.ENSP00000322270. |
Protein family/group databases | |
| MEROPS | S63.012. |
| GPCRDB | Search... |
PTM databases | |
| PhosphoSite | O95490. |
Proteomic databases | |
| PaxDb | O95490. |
| PRIDE | O95490. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000319517; ENSP00000322270; ENSG00000117114. ENST00000335786; ENSP00000337306; ENSG00000117114. ENST00000359929; ENSP00000353006; ENSG00000117114. ENST00000370713; ENSP00000359748; ENSG00000117114. ENST00000370715; ENSP00000359750; ENSG00000117114. ENST00000370717; ENSP00000359752; ENSG00000117114. ENST00000370723; ENSP00000359758; ENSG00000117114. ENST00000370725; ENSP00000359760; ENSG00000117114. ENST00000370728; ENSP00000359763; ENSG00000117114. ENST00000370730; ENSP00000359765; ENSG00000117114. ENST00000394879; ENSP00000378344; ENSG00000117114. |
| GeneID | 23266. |
| KEGG | hsa:23266. |
| UCSC | uc001dit.4. human. uc001div.3. human. uc001diw.3. human. uc009wcd.3. human. |
Organism-specific databases | |
| CTD | 23266. |
| GeneCards | GC01P081771. |
| HGNC | HGNC:18582. LPHN2. |
| HPA | HPA013573. |
| MIM | 607018. gene. |
| neXtProt | NX_O95490. |
| PharmGKB | PA38589. |
| HUGE | Search... |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | NOG253931. |
| HOGENOM | HOG000049065. |
| HOVERGEN | HBG052337. |
| KO | K04593. |
| OMA | DIYYKSM. |
| PhylomeDB | O95490. |
Gene expression databases | |
| ArrayExpress | O95490. |
| Bgee | O95490. |
| CleanEx | HS_LPHN2. |
| Genevestigator | O95490. |
| GermOnline | ENSG00000117114. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR022624. DUF3497. IPR017981. GPCR_2-like. IPR001879. GPCR_2_extracellular_dom. IPR003924. GPCR_2_latrophilin. IPR003334. GPCR_2_latrophilin_rcpt_C. IPR000832. GPCR_2_secretin-like. IPR017983. GPCR_2_secretin-like_CS. IPR000203. GPS_dom. IPR000922. Lectin_gal-bd_dom. IPR003112. Olfac-like. [Graphical view] |
| Pfam | PF00002. 7tm_2. 1 hit. PF12003. DUF3497. 1 hit. PF02140. Gal_Lectin. 1 hit. PF01825. GPS. 1 hit. PF02793. HRM. 1 hit. PF02354. Latrophilin. 1 hit. PF02191. OLF. 1 hit. [Graphical view] |
| PRINTS | PR00249. GPCRSECRETIN. PR01444. LATROPHILIN. |
| SMART | SM00303. GPS. 1 hit. SM00008. HormR. 1 hit. SM00284. OLF. 1 hit. [Graphical view] |
| PROSITE | PS00649. G_PROTEIN_RECEP_F2_1. False negative. PS00650. G_PROTEIN_RECEP_F2_2. 1 hit. PS50227. G_PROTEIN_RECEP_F2_3. 1 hit. PS50261. G_PROTEIN_RECEP_F2_4. 1 hit. PS50221. GPS. 1 hit. PS51132. OLF. 1 hit. PS50228. SUEL_LECTIN. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| ChiTaRS | LPHN2. human. |
| GenomeRNAi | 23266. |
| NextBio | 45018. |
| SOURCE | Search... |
Entry information
| Entry name | LPHN2_HUMAN | ||||||||
| Accession | Primary (citable) accession number: O95490 Secondary accession number(s): A5XEI2 Q9UKY6 | ||||||||
| Entry history |
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| 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. | ||||||||
Relevant documents
| 7-transmembrane G-linked receptors List of 7-transmembrane G-linked receptor entries |
| Human chromosome 1 Human chromosome 1: entries, gene names and cross-references to MIM |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
