7SRS | pdb_00007srs

5-HT2B receptor bound to LSD in complex with beta-arrestin1 obtained by cryo-electron microscopy (cryoEM)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: mpstruc
Protein Modification Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth R]	SCOP2B Superfamily	G protein-coupled receptor-like	8091214	3000473	SCOP2B (2022-06-29)
C [auth R]	SCOP2B Superfamily	G protein-coupled receptor-like	8091214	3000473	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth P]	V-set	e7srsP1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
B [auth Q]	V-set_8	e7srsQ1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
C [auth R]	7tm_1_2	e7srsR1	A: alpha bundles	X: Family A G protein-coupled receptor-like (From Topology)	H: Family A G protein-coupled receptor-like (From Topology)	T: Family A G protein-coupled receptor-like	F: 7tm_1_2	ECOD (1.6)
D [auth C]	Arrestin_C	e7srsC1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Arrestin_C	ECOD (1.6)
D [auth C]	Arrestin_N	e7srsC2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Arrestin_N	ECOD (1.6)
E [auth H]	V-set_10	e7srsH1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_10	ECOD (1.6)
F [auth L]	V-set	e7srsL1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth P]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B [auth Q]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C [auth R]	1.20.1070.10	Mainly Alpha	Up-down Bundle	Rhopdopsin 7-helix transmembrane proteins	Rhodopsin 7-helix transmembrane proteins	CATH (utative)
D [auth C]	2.60.40.840	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (utative)
D [auth C]	2.60.40.640	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (utative)
E [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
F [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A [auth P]	Light Chain	IGKV4	Kappa	5-hydroxytryptamine receptor 2b	SAbDab (2025-12-12)
B [auth Q]	Heavy Chain	IGHV1	-	5-hydroxytryptamine receptor 2b	SAbDab (2025-12-12)
E [auth H]	Heavy Chain	IGHV3	-	isoform 1b of beta-arrestin-1	SAbDab (2025-12-12)
F [auth L]	Light Chain	IGKV1	Kappa	isoform 1b of beta-arrestin-1	SAbDab (2025-12-12)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth R]	PF00001	7 transmembrane receptor (rhodopsin family) (7tm_1)	7 transmembrane receptor (rhodopsin family)	This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GC ...	This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GCPRs of the rhodopsin superfamily. All opsins bind a chromophore, such as 11-cis-retinal. The function of most opsins other than the photoisomerases is split into two steps: light absorption and G-protein activation. Photoisomerases, on the other hand, are not coupled to G-proteins - they are thought to generate and supply the chromophore that is used by visual opsins [1].	Domain
D [auth C]	PF00339	Arrestin (or S-antigen), N-terminal domain (Arrestin_N)	Arrestin (or S-antigen), N-terminal domain	Ig-like beta-sandwich fold. Scop reports duplication with C-terminal domain.	Domain
D [auth C]	PF02752	Arrestin (or S-antigen), C-terminal domain (Arrestin_C)	Arrestin (or S-antigen), C-terminal domain	Ig-like beta-sandwich fold. Scop reports duplication with N-terminal domain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth P]	Anti-5HT2BR Fab light chain	-	-	-
B [auth Q]	Anti-5HT2BR Fab heavy chain	-	-	-
C [auth R]	5-hydroxytryptamine receptor 2B	cation binding binding ion binding serotonin binding amine binding heterocyclic compound binding small molecule binding neurotransmitter receptor activity molecular transducer activity signaling receptor activity serotonin receptor activity transmembrane signaling receptor activity G protein-coupled amine receptor activity G protein-coupled serotonin receptor activity cation binding binding ion binding serotonin binding amine binding heterocyclic compound binding small molecule binding neurotransmitter receptor activity molecular transducer activity signaling receptor activity serotonin receptor activity transmembrane signaling receptor activity G protein-coupled amine receptor activity G protein-coupled serotonin receptor activity G protein-coupled receptor activity GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity Gq/11-coupled serotonin receptor activity protein binding G-protein alpha-subunit binding	response to stimulus response to chemical response to xenobiotic stimulus cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction positive regulation of canonical NF-kappaB signal transduction signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus response to stimulus response to chemical response to xenobiotic stimulus cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction positive regulation of canonical NF-kappaB signal transduction signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette signal transduction positive regulation of cellular process regulation of biological process regulation of signaling biological regulation positive regulation of intracellular signal transduction canonical NF-kappaB signal transduction regulation of response to stimulus regulation of cell communication regulation of canonical NF-kappaB signal transduction cellular process positive regulation of signaling intestine smooth muscle contraction multicellular organismal process gastro-intestinal system smooth muscle contraction system process smooth muscle contraction phasic smooth muscle contraction muscle contraction muscle system process developmental process neural crest cell differentiation cellular developmental process animal organ development mesenchyme development tissue development stem cell differentiation cell differentiation anatomical structure development mesenchymal cell differentiation phospholipase C-activating serotonin receptor signaling pathway G protein-coupled serotonin receptor signaling pathway phospholipase C-activating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway positive regulation of ERK1 and ERK2 cascade positive regulation of MAPK cascade regulation of MAPK cascade MAPK cascade ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade negative regulation of programmed cell death regulation of apoptotic process negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process apoptotic process programmed cell death regulation of lipid metabolic process glycerophospholipid metabolic process lipid biosynthetic process positive regulation of phosphate metabolic process regulation of primary metabolic process phospholipid metabolic process positive regulation of metabolic process positive regulation of biosynthetic process phosphate-containing compound metabolic process positive regulation of lipid metabolic process positive regulation of phosphatidylinositol biosynthetic process phosphorus metabolic process regulation of phosphatidylinositol biosynthetic process regulation of biosynthetic process phosphatidylinositol metabolic process positive regulation of phosphorus metabolic process glycerophospholipid biosynthetic process positive regulation of phospholipid biosynthetic process regulation of phospholipid metabolic process primary metabolic process phospholipid biosynthetic process regulation of phospholipid biosynthetic process phosphatidylinositol biosynthetic process positive regulation of phospholipid metabolic process biosynthetic process positive regulation of lipid biosynthetic process glycerolipid biosynthetic process organophosphate metabolic process organophosphate biosynthetic process metabolic process regulation of phosphorus metabolic process glycerolipid metabolic process regulation of lipid biosynthetic process regulation of metabolic process lipid metabolic process regulation of tube diameter regulation of tube size circulatory system process vascular process in circulatory system blood vessel diameter maintenance regulation of biological quality vasoconstriction blood circulation regulation of anatomical structure size inorganic ion homeostasis intracellular calcium ion homeostasis homeostatic process calcium ion homeostasis cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis calcium-mediated signaling stem cell development neural crest cell development cell development mesenchymal cell migration ameboidal-type cell migration cell migration cell motility neural crest cell migration positive regulation of cell division cell division regulation of cell division regulation of behavior behavior regulation of multicellular organismal process multicellular organism development anatomical structure morphogenesis embryonic morphogenesis embryo development heart development heart morphogenesis circulatory system development animal organ morphogenesis system development cellular response to nitrogen compound response to dopamine serotonin receptor signaling pathway cellular response to dopamine response to monoamine response to oxygen-containing compound response to nitrogen compound cellular response to oxygen-containing compound cellular response to chemical stimulus response to catecholamine cellular response to monoamine stimulus cellular response to catecholamine stimulus cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation regulation of localization cellular localization transport monoatomic ion transmembrane transport negative regulation of sequestering of calcium ion calcium ion transport metal ion transport maintenance of location in cell monoatomic cation transmembrane transport localization monoatomic ion transport monoatomic cation transport regulation of sequestering of calcium ion calcium ion transmembrane import into cytosol sequestering of calcium ion establishment of localization maintenance of location transmembrane transport release of sequestered calcium ion into cytosol calcium ion transmembrane transport muscle hypertrophy cardiac muscle hypertrophy striated muscle hypertrophy trans-synaptic signaling synaptic signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission positive regulation of macromolecule biosynthetic process cytokine production regulation of cytokine production positive regulation of macromolecule metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression positive regulation of gene expression positive regulation of multicellular organismal process regulation of macromolecule biosynthetic process macromolecule metabolic process positive regulation of cytokine production endothelial cell proliferation positive regulation of epithelial cell proliferation regulation of endothelial cell proliferation positive regulation of endothelial cell proliferation regulation of epithelial cell proliferation epithelial cell proliferation G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger	protein-containing complex G protein-coupled serotonin receptor complex receptor complex cell periphery cellular anatomical structure plasma membrane membrane somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection intracellular anatomical structure protein-containing complex G protein-coupled serotonin receptor complex receptor complex cell periphery cellular anatomical structure plasma membrane membrane somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection intracellular anatomical structure cytoplasm membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen synapse cell junction
D [auth C]	Isoform 1B of Beta-arrestin-1	protein binding binding arrestin family protein binding GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity angiotensin receptor binding signaling receptor binding G protein-coupled receptor binding molecular adaptor activity protein binding binding arrestin family protein binding GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity angiotensin receptor binding signaling receptor binding G protein-coupled receptor binding molecular adaptor activity ubiquitin protein ligase binding ubiquitin-like protein ligase binding enzyme binding insulin-like growth factor receptor binding molecular function inhibitor activity enzyme inhibitor activity transcription coactivator activity transcription regulator activity transcription coregulator activity protein-macromolecule adaptor activity	interleukin-6 production multicellular organismal process regulation of cellular process negative regulation of biological process regulation of interleukin-6 production regulation of cytokine production cytokine production negative regulation of cellular process regulation of multicellular organismal process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process negative regulation of metabolic process biological regulation interleukin-6 production multicellular organismal process regulation of cellular process negative regulation of biological process regulation of interleukin-6 production regulation of cytokine production cytokine production negative regulation of cellular process regulation of multicellular organismal process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process negative regulation of metabolic process biological regulation negative regulation of cytokine production regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression negative regulation of interleukin-6 production negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process negative regulation of multicellular organismal process regulation of metabolic process negative regulation of post-translational protein modification regulation of protein modification process regulation of protein ubiquitination regulation of primary metabolic process protein ubiquitination negative regulation of protein modification process protein metabolic process negative regulation of protein ubiquitination regulation of protein modification by small protein conjugation or removal protein modification process negative regulation of protein metabolic process negative regulation of protein modification by small protein conjugation or removal regulation of post-translational protein modification regulation of protein metabolic process primary metabolic process macromolecule modification post-translational protein modification protein modification by small protein conjugation protein modification by small protein conjugation or removal actomyosin structure organization actin cytoskeleton organization actin filament organization cellular component organization cellular component biogenesis organelle organization cellular component assembly actin filament bundle organization contractile actin filament bundle assembly actin filament-based process actin filament bundle assembly stress fiber assembly cellular component organization or biogenesis supramolecular fiber organization cytoskeleton organization catabolic process proteolysis involved in protein catabolic process protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis ubiquitin-dependent protein catabolic process muscle hypertrophy regulation of muscle adaptation system process positive regulation of cardiac muscle hypertrophy response to stimulus regulation of system process positive regulation of biological process striated muscle hypertrophy regulation of muscle system process muscle system process regulation of cardiac muscle hypertrophy regulation of muscle hypertrophy muscle adaptation regulation of response to stimulus positive regulation of muscle hypertrophy cardiac muscle hypertrophy positive regulation of multicellular organismal process negative regulation of interleukin-8 production interleukin-8 production regulation of interleukin-8 production positive regulation of DNA-templated transcription RNA metabolic process positive regulation of macromolecule biosynthetic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of transcription by RNA polymerase II positive regulation of transcription by RNA polymerase II nucleobase-containing compound biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process regulation of DNA-templated transcription cellular response to stimulus negative adaptation of signaling pathway import into cell receptor internalization negative regulation of signaling signaling transport desensitization of G protein-coupled receptor signaling pathway regulation of signal transduction negative regulation of G protein-coupled receptor signaling pathway negative regulation of cell communication vesicle-mediated transport cell communication localization signal transduction regulation of G protein-coupled receptor signaling pathway G protein-coupled receptor internalization regulation of signaling negative regulation of response to stimulus negative regulation of signal transduction establishment of localization adaptation of signaling pathway regulation of cell communication G protein-coupled receptor signaling pathway receptor-mediated endocytosis endocytosis positive regulation of cell communication positive regulation of signal transduction intracellular signal transduction positive regulation of response to stimulus positive regulation of ERK1 and ERK2 cascade regulation of intracellular signal transduction intracellular signaling cassette positive regulation of MAPK cascade positive regulation of intracellular signal transduction regulation of MAPK cascade MAPK cascade ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade positive regulation of signaling establishment of protein localization nitrogen compound transport protein transport macromolecule localization intracellular protein localization regulation of localization regulation of cellular component organization positive regulation of cellular component organization regulation of receptor internalization positive regulation of endocytosis positive regulation of receptor-mediated endocytosis regulation of endocytosis regulation of transport regulation of receptor-mediated endocytosis regulation of vesicle-mediated transport positive regulation of receptor internalization positive regulation of transport small GTPase-mediated signal transduction regulation of small GTPase mediated signal transduction Rho protein signal transduction regulation of Rho protein signal transduction positive regulation of Rho protein signal transduction positive regulation of small GTPase mediated signal transduction proteasomal protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process negative regulation of DNA-binding transcription factor activity negative regulation of NF-kappaB transcription factor activity negative regulation of molecular function regulation of molecular function regulation of DNA-binding transcription factor activity cell surface receptor signaling pathway Notch signaling pathway negative regulation of Notch signaling pathway regulation of Notch signaling pathway positive regulation of phosphorylation regulation of protein phosphorylation positive regulation of protein metabolic process positive regulation of phosphate metabolic process positive regulation of protein modification process phosphate-containing compound metabolic process positive regulation of protein phosphorylation phosphorus metabolic process protein phosphorylation positive regulation of phosphorus metabolic process phosphorylation regulation of phosphorus metabolic process regulation of phosphorylation	cell projection cellular anatomical structure pseudopodium plasma membrane bounded cell projection clathrin-coated pit membrane endomembrane system intracellular anatomical structure cytoplasm cytosol intracellular organelle organelle membraneless organelle intracellular membraneless organelle cell projection cellular anatomical structure pseudopodium plasma membrane bounded cell projection clathrin-coated pit membrane endomembrane system intracellular anatomical structure cytoplasm cytosol intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin chromosome membrane-bounded organelle intracellular vesicle intracellular membrane-bounded organelle cytoplasmic vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane endocytic vesicle membrane vesicle organelle membrane endocytic vesicle vacuolar membrane lytic vacuole vacuole lytic vacuole membrane lysosomal membrane lysosome Golgi membrane Golgi apparatus cell periphery plasma membrane nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen nuclear body
E [auth H]	Fab30 heavy chain	-	-	-
F [auth L]	Fab30 light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth R]	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
C [auth R]	IPR017452	GPCR, rhodopsin-like, 7TM	Domain
C [auth R]	IPR000482	5-Hydroxytryptamine 2B receptor	Family
C [auth R]	IPR002231	5-hydroxytryptamine receptor family	Family
D [auth C]	IPR000698	Arrestin	Family
D [auth C]	IPR014753	Arrestin, N-terminal	Homologous Superfamily
D [auth C]	IPR014756	Immunoglobulin E-set	Homologous Superfamily
D [auth C]	IPR011021	Arrestin-like, N-terminal	Domain
D [auth C]	IPR014752	Arrestin-like, C-terminal	Homologous Superfamily
D [auth C]	IPR017864	Arrestin, conserved site	Conserved Site
D [auth C]	IPR011022	Arrestin C-terminal-like domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C [auth R]	Pharos: P41595	congestive heart failure heart valve disease pulmonary hypertension Cardiomegaly hypertensive disorder psoriasis acromegaly amenorrhea invasive ductal breast carcinoma malignant mesothelioma pulmonary arterial hypertension adrenal cortex carcinoma migraine disorder osteosarcoma heart failure congestive heart failure heart valve disease pulmonary hypertension Cardiomegaly hypertensive disorder psoriasis acromegaly amenorrhea invasive ductal breast carcinoma malignant mesothelioma pulmonary arterial hypertension adrenal cortex carcinoma migraine disorder osteosarcoma heart failure major depressive disorder
D [auth C]	Pharos: P49407	cirrhosis of liver pilocytic astrocytoma ulcerative colitis adrenal cortex carcinoma breast cancer Fibrosis, Liver large cell medulloblastoma lung carcinoma malignant glioma osteosarcoma astrocytic tumor glioblastoma lung adenocarcinoma major depressive disorder malignant mesothelioma cirrhosis of liver pilocytic astrocytoma ulcerative colitis adrenal cortex carcinoma breast cancer Fibrosis, Liver large cell medulloblastoma lung carcinoma malignant glioma osteosarcoma astrocytic tumor glioblastoma lung adenocarcinoma major depressive disorder malignant mesothelioma ovarian cancer tuberculosis atypical teratoid rhabdoid tumor ductal breast carcinoma in situ invasive ductal breast carcinoma lung cancer malignant ependymoma non-small cell lung carcinoma

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
C [auth R], D [auth C]	OPM	Transmembrane	Alpha-helical polytopic	Rhodopsin-like receptors and pumps	G-protein coupled receptors, family A

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
C [auth R], D [auth C]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
C [auth R], D [auth C]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class A	5-HT_2B serotonin receptor - β arrestin-1 complex with bound LSD

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
C [auth R]	SEP	Parent Component: SER RESID: AA0037 PSI-MOD : O-phospho-L-serine MOD:00046

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.