Latrophilin

Identifiers

Symbol

Latrophilin

Available protein structures:
Pfam	structures
PDB	RCSB PDB; PDBe; PDBj
PDBsum	structure summary

EGF, latrophilin and seven transmembrane domain containing 1
Identifiers
Symbol	ELTD1
Alt. symbols	ETL
Entrez	64123
HUGO	20822
RefSeq	NM_022159
UniProt	Q9HBW9
Other data
Locus	Chr. 1 p33-p32

latrophilin 1
Identifiers
Symbol	LPHN1
Alt. symbols	KIAA0821, CIRL1, LEC2
Entrez	22859
HUGO	20973
RefSeq	NM_014921
UniProt	O94910
Other data
Locus	Chr. 19 p13.2

latrophilin 2
Identifiers
Symbol	LPHN2
Alt. symbols	LPHH1, KIAA0786, LEC1
Entrez	23266
HUGO	18582
OMIM	607018
RefSeq	NM_012302
UniProt	O95490
Other data
Locus	Chr. 1 p31.1

latrophilin 3
Identifiers
Symbol	LPHN3
Alt. symbols	KIAA0768, LEC3
Entrez	23284
HUGO	20974
RefSeq	NM_015236
UniProt	Q9HAR2
Other data
Locus	Chr. 4 q13.1

Latrophilins are a group of highly conserved G-protein coupled receptors from the adhesion G protein-coupled receptor family. These receptors were originally identified based on their ability to bind the spider venom alpha-latrotoxin.^[1] This conserved family of membrane proteins has up to three homologues in chordate species, including humans.^[2]

The precise functions of latrophilins remain unknown.^[2] Genetic defects in latrophilin genes have been associated with diseases such as attention-deficit hyperactivity disorder and cancer.^[3]

Human proteins containing this domain

Latrophilin 1 (LPHN1)
Latrophilin 2 (LPHN2)
Latrophilin 3 (LPHN3)

References

↑ Kreienkamp HJ, Soltau M, Richter D, Böckers T (2002). "Interaction of G-protein-coupled receptors with synaptic scaffolding proteins". Biochem. Soc. Trans. 30 (4): 464–8. doi:10.1042/BST0300464. PMID 12196116.
1 2 Silva, JP; Ushkaryov, YA (2010). "The latrophilins, "split-personality" receptors.". Advances in Experimental Medicine and biology 706: 59–75. PMID 21618826.
↑ Meza-Aguilar, Diana G; Boucard, Antony A (1 January 2014). "Latrophilins updated". Biomolecular Concepts 5 (6). doi:10.1515/bmc-2014-0032.

Cell surface receptor: G protein-coupled receptors

Class A: Rhodopsin like

Neurotransmitter

Adrenergic	α1 (A B D) α2 (A B C) β1 β2 β3

Purinergic	Adenosine (A1 A2A A2B A3) P2Y (1 2 4 5 6 8 9 10 11 12 13 14)

Serotonin	(all but 5-HT3) 5-HT1 (A B D E F) 5-HT2 (A B C) 5-HT (4 5A 6 7)

Other	Acetylcholine (M1 M2 M3 M4 M5) Dopamine (D1 D2 D3 D4 D5) Histamine (H1 H2 H3 H4) Melatonin (1A 1B 1C) TAAR (1 2 3 5 6 8 9)

Metabolites and
signaling molecules

Eicosanoid	CysLT (1 2) LTB4 (1 2) FPRL1 OXE Prostaglandin (DP (1 2), EP (1 2 3 4), FP) Prostacyclin Thromboxane

Other	Bile acid Cannabinoid (CB1 CB2, GPR (18 55 119)) EBI2 Estrogen Free fatty acid (1 2 3 4) Lactate Lysophosphatidic acid (1 2 3 4 5 6) Lysophospholipid (1 2 3 4 5 6 7 8) Niacin (1 2) Oxoglutarate PAF Sphingosine-1-phosphate (1 2 3 4 5) Succinate

Peptide

Neuropeptide	B/W (1 2) FF (1 2) S Y (1 2 4 5) Neuromedin (B U (1 2)) Neurotensin (1 2)

Other	Anaphylatoxin (C3a C5a) Angiotensin (1 2) Apelin Bombesin (BRS3 GRPR NMBR) Bradykinin (B1 B2) Chemokine Cholecystokinin (A B) Endothelin (A B) Formyl peptide (1 2 3) FSH Galanin (1 2 3) GHB receptor Gonadotropin-releasing hormone (1 2) Ghrelin Kisspeptin Luteinizing hormone/choriogonadotropin MAS (1 1L D E F G X1 X2 X3 X4) Melanocortin (1 2 3 4 5) MCHR (1 2) Motilin Opioid (Delta Kappa Mu Nociceptin & Zeta, but not Sigma) Orexin (1 2) Oxytocin Prokineticin (1 2) Prolactin-releasing peptide Relaxin (1 2 3 4) Somatostatin (1 2 3 4 5) Tachykinin (1 2 3) Thyrotropin Thyrotropin-releasing hormone Urotensin-II Vasopressin (1A 1B 2)

Miscellaneous

Orphan	GPR (1 3 4 6 12 15 17 18 19 20 21 22 23 25 26 27 31 32 33 34 35 37 39 42 44 45 50 52 55 61 62 63 65 68 75 77 78 81 82 83 84 85 87 88 92 101 103 109A 109B 119 120 132 135 137B 139 141 142 146 148 149 150 151 152 153 160 161 162 171 173 174 176 177 182 183)

Other	Adrenomedullin Olfactory Opsin (3 4 5 1LW 1MW 1SW RGR RRH) Protease-activated (1 2 3 4) SREB (1 2 3)

Class B: Secretin like

Adhesion	ADGRG (1 2 3 4 5 6 7)

Orphan	GPR (56 64 97 98 110 111 112 113 114 115 116 123 124 125 126 128 133 143 144 155 157)

Other	Brain-specific angiogenesis inhibitor (1 2 3) Cadherin (1 2 3) Calcitonin CALCRL CD97 Corticotropin-releasing hormone (1 2) EMR (1 2 3) Glucagon (GR GIPR GLP1R GLP2R) Growth hormone releasing hormone PACAPR1 GPR Latrophilin (1 2 3 ELTD1) Methuselah-like proteins Parathyroid hormone (1 2) Secretin Vasoactive intestinal peptide (1 2)

Class C: Metabotropic glutamate / pheromone

Taste	TAS1R (1 2 3) TAS2R (1 3 4 5 7 8 9 10 13 14 16 19 20 30 31 38 39 40 41 42 43 45 46 50 60)

Other	Calcium-sensing receptor GABA B (1 2) Glutamate receptor (Metabotropic glutamate (1 2 3 4 5 6 7 8)) GPRC6A GPR (156 158 179) RAIG (1 2 3 4)

Class F: Frizzled / Smoothened

Frizzled	Frizzled (1 2 3 4 5 6 7 8 9 10)

Smoothened	Smoothened

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Latrophilin

Human proteins containing this domain

See also

References