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- EMDB-20883: CryoEM Structure of the active Adrenomedullin 1 receptor G protei... -

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Basic information

Entry
Database: EMDB / ID: EMD-20883
TitleCryoEM Structure of the active Adrenomedullin 1 receptor G protein complex with adrenomedullin peptide
Map dataMain post processed map
Sample
  • Complex: AM:CLR:RAMP2:GasDN:Gb1:Gg2:Nb35 GPCR Complex
    • Complex: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1, Receptor activity-modifying protein 2, Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2, Calcitonin gene-related peptide type 1 receptor
      • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
      • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
      • Protein or peptide: Receptor activity-modifying protein 2
      • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
      • Protein or peptide: Calcitonin gene-related peptide type 1 receptor
    • Complex: Nanobody 35
      • Protein or peptide: Nanobody 35
    • Complex: ADM
      • Protein or peptide: ADM
KeywordsGPCR / adrenomedullin receptor complex / MEMBRANE PROTEIN
Function / homology
Function and homology information


adrenomedullin receptor binding / positive regulation of progesterone biosynthetic process / basement membrane assembly / CGRP receptor complex / calcitonin gene-related peptide receptor signaling pathway / adrenomedullin binding / cellular response to sucrose stimulus / adrenomedullin receptor activity / adrenomedullin receptor complex / vascular associated smooth muscle cell development ...adrenomedullin receptor binding / positive regulation of progesterone biosynthetic process / basement membrane assembly / CGRP receptor complex / calcitonin gene-related peptide receptor signaling pathway / adrenomedullin binding / cellular response to sucrose stimulus / adrenomedullin receptor activity / adrenomedullin receptor complex / vascular associated smooth muscle cell development / neuron projection regeneration / adrenomedullin receptor signaling pathway / calcitonin receptor activity / spongiotrophoblast layer development / vascular associated smooth muscle cell proliferation / calcitonin gene-related peptide receptor activity / Calcitonin-like ligand receptors / branching involved in labyrinthine layer morphogenesis / positive regulation of vasculogenesis / regulation of systemic arterial blood pressure / regulation of the force of heart contraction / bicellular tight junction assembly / regulation of G protein-coupled receptor signaling pathway / adherens junction assembly / regulation of urine volume / G protein-coupled receptor internalization / negative regulation of vascular permeability / sprouting angiogenesis / negative regulation of vasoconstriction / positive regulation of heart rate / response to starvation / odontogenesis of dentin-containing tooth / PKA activation in glucagon signalling / androgen metabolic process / hair follicle placode formation / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / developmental growth / D1 dopamine receptor binding / intracellular transport / cellular response to vascular endothelial growth factor stimulus / vasculogenesis / renal water homeostasis / Hedgehog 'off' state / animal organ regeneration / negative regulation of endothelial cell apoptotic process / coreceptor activity / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / response to glucocorticoid / clathrin-coated pit / cellular response to hormone stimulus / positive regulation of vascular associated smooth muscle cell proliferation / cellular response to glucagon stimulus / adenylate cyclase activator activity / regulation of insulin secretion / cAMP-mediated signaling / trans-Golgi network membrane / protein localization to plasma membrane / neural tube closure / female pregnancy / G protein-coupled receptor activity / negative regulation of inflammatory response to antigenic stimulus / intracellular protein transport / response to insulin / bone development / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Activation of the phototransduction cascade / hormone activity / receptor internalization / G protein activity / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / platelet aggregation / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / regulation of blood pressure / cognition / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / positive regulation of angiogenesis / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1
Similarity search - Function
Pro-adrenomedullin / : / GPCR, family 2, calcitonin gene-related peptide, type 1 receptor / Receptor activity modifying protein / RAMP domain superfamily / Receptor activity modifying family / GPCR, family 2, calcitonin receptor family / Calcitonin/adrenomedullin / Calcitonin / CGRP / IAPP family / G-protein coupled receptors family 2 signature 1. ...Pro-adrenomedullin / : / GPCR, family 2, calcitonin gene-related peptide, type 1 receptor / Receptor activity modifying protein / RAMP domain superfamily / Receptor activity modifying family / GPCR, family 2, calcitonin receptor family / Calcitonin/adrenomedullin / Calcitonin / CGRP / IAPP family / G-protein coupled receptors family 2 signature 1. / : / GPCR, family 2, extracellular hormone receptor domain / G-protein coupled receptors family 2 profile 1. / Domain present in hormone receptors / Hormone receptor domain / GPCR family 2, extracellular hormone receptor domain superfamily / G-protein coupled receptors family 2 signature 2. / GPCR, family 2, secretin-like, conserved site / GPCR, family 2, secretin-like / 7 transmembrane receptor (Secretin family) / GPCR, family 2-like / G-protein coupled receptors family 2 profile 2. / G-protein alpha subunit, group S / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Receptor activity-modifying protein 2 / Pro-adrenomedullin / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Calcitonin gene-related peptide type 1 receptor
Similarity search - Component
Biological speciesHomo sapiens (human) / Lama glama (llama)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.0 Å
AuthorsBelousoff MJ / Liang YL
Funding support Australia, Japan, 5 items
OrganizationGrant numberCountry
National Health and Medical Research Council (NHMRC, Australia)1120919 Australia
National Health and Medical Research Council (NHMRC, Australia)1159006 Australia
National Health and Medical Research Council (NHMRC, Australia)1150083 Australia
Japan Society for the Promotion of Science (JSPS)KAKENHI #18H06043 Japan
Japan Science and Technology#18069571 Japan
CitationJournal: ACS Pharmacol Transl Sci / Year: 2020
Title: Structure and Dynamics of Adrenomedullin Receptors AM and AM Reveal Key Mechanisms in the Control of Receptor Phenotype by Receptor Activity-Modifying Proteins.
Authors: Yi-Lynn Liang / Matthew J Belousoff / Madeleine M Fletcher / Xin Zhang / Maryam Khoshouei / Giuseppe Deganutti / Cassandra Koole / Sebastian G B Furness / Laurence J Miller / Debbie L Hay / ...Authors: Yi-Lynn Liang / Matthew J Belousoff / Madeleine M Fletcher / Xin Zhang / Maryam Khoshouei / Giuseppe Deganutti / Cassandra Koole / Sebastian G B Furness / Laurence J Miller / Debbie L Hay / Arthur Christopoulos / Christopher A Reynolds / Radostin Danev / Denise Wootten / Patrick M Sexton /
Abstract: Adrenomedullin (AM) and calcitonin gene-related peptide (CGRP) receptors are critically important for metabolism, vascular tone, and inflammatory response. AM receptors are also required for normal ...Adrenomedullin (AM) and calcitonin gene-related peptide (CGRP) receptors are critically important for metabolism, vascular tone, and inflammatory response. AM receptors are also required for normal lymphatic and blood vascular development and angiogenesis. They play a pivotal role in embryo implantation and fertility and can provide protection against hypoxic and oxidative stress. CGRP and AM receptors are heterodimers of the calcitonin receptor-like receptor (CLR) and receptor activity-modifying protein 1 (RAMP1) (CGRPR), as well as RAMP2 or RAMP3 (AMR and AMR, respectively). However, the mechanistic basis for RAMP modulation of CLR phenotype is unclear. In this study, we report the cryo-EM structure of the AMR in complex with AM and Gs at a global resolution of 3.0 Å, and structures of the AMR in complex with either AM or intermedin/adrenomedullin 2 (AM2) and Gs at 2.4 and 2.3 Å, respectively. The structures reveal distinctions in the primary orientation of the extracellular domains (ECDs) relative to the receptor core and distinct positioning of extracellular loop 3 (ECL3) that are receptor-dependent. Analysis of dynamic data present in the cryo-EM micrographs revealed additional distinctions in the extent of mobility of the ECDs. Chimeric exchange of the linker region of the RAMPs connecting the TM helix and the ECD supports a role for this segment in controlling receptor phenotype. Moreover, a subset of the motions of the ECD appeared coordinated with motions of the G protein relative to the receptor core, suggesting that receptor ECD dynamics could influence G protein interactions. This work provides fundamental advances in our understanding of GPCR function and how this can be allosterically modulated by accessory proteins.
History
DepositionOct 30, 2019-
Header (metadata) releaseDec 4, 2019-
Map releaseMar 25, 2020-
UpdateOct 16, 2024-
Current statusOct 16, 2024Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.017
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 0.017
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6uun
  • Surface level: 0.017
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_20883.png

Downloads & links

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Map

FileDownload / File: emd_20883.map.gz / Format: CCP4 / Size: 91.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationMain post processed map
Projections & slices

Image control

Size
Brightness
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Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.83 Å/pix.
x 288 pix.
= 239.04 Å		0.83 Å/pix.
x 288 pix.
= 239.04 Å		0.83 Å/pix.
x 288 pix.
= 239.04 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 0.83 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.017 / Movie #1: 0.017
Minimum - Maximum-0.105915815 - 0.17464903
Average (Standard dev.)-0.000012483051 (±0.0041382094)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions288288288
Spacing288288288
CellA=B=C: 239.04 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z0.830.830.83
M x/y/z288288288
origin x/y/z0.0000.0000.000
length x/y/z239.040239.040239.040
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS288288288
D min/max/mean-0.1060.175-0.000

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Supplemental data

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Mask #1

Fileemd_20883_msk_1.map
Projections & Slices
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Histogram (log scale)

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Additional map: Local resolution filtered map

Fileemd_20883_additional.map
AnnotationLocal resolution filtered map
Projections & Slices
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Half map: halfmap1

Fileemd_20883_half_map_1.map
Annotationhalfmap1
Projections & Slices
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Histogram (log scale)

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Half map: halfmap2

Fileemd_20883_half_map_2.map
Annotationhalfmap2
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Sample components

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Entire : AM:CLR:RAMP2:GasDN:Gb1:Gg2:Nb35 GPCR Complex

EntireName: AM:CLR:RAMP2:GasDN:Gb1:Gg2:Nb35 GPCR Complex
Components
  • Complex: AM:CLR:RAMP2:GasDN:Gb1:Gg2:Nb35 GPCR Complex
    • Complex: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1, Receptor activity-modifying protein 2, Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2, Calcitonin gene-related peptide type 1 receptor
      • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
      • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
      • Protein or peptide: Receptor activity-modifying protein 2
      • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
      • Protein or peptide: Calcitonin gene-related peptide type 1 receptor
    • Complex: Nanobody 35
      • Protein or peptide: Nanobody 35
    • Complex: ADM
      • Protein or peptide: ADM

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Supramolecule #1: AM:CLR:RAMP2:GasDN:Gb1:Gg2:Nb35 GPCR Complex

SupramoleculeName: AM:CLR:RAMP2:GasDN:Gb1:Gg2:Nb35 GPCR Complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all

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Supramolecule #2: Guanine nucleotide-binding protein G(s) subunit alpha isoforms sh...

SupramoleculeName: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1, Receptor activity-modifying protein 2, Guanine nucleotide- ...Name: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1, Receptor activity-modifying protein 2, Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2, Calcitonin gene-related peptide type 1 receptor
type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#4, #7
Source (natural)Organism: Homo sapiens (human)

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Supramolecule #3: Nanobody 35

SupramoleculeName: Nanobody 35 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #5
Source (natural)Organism: Lama glama (llama)

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Supramolecule #4: ADM

SupramoleculeName: ADM / type: complex / ID: 4 / Parent: 1 / Macromolecule list: #6
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short

MacromoleculeName: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 45.683434 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE ...String:
MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE YQLIDCAQYF LDKIDVIKQA DYVPSDQDLL RCRVLTSGIF ETKFQVDKVN FHMFDVGAQR DERRKWIQCF ND VTAIIFV VASSSYNMVI REDNQTNRLQ AALKLFDSIW NNKWLRDTSV ILFLNKQDLL AEKVLAGKSK IEDYFPEFAR YTT PEDATP EPGEDPRVTR AKYFIRDEFL RISTASGDGR HYCYPHFTCA VDTENIRRVF NDCRDIIQRM HLRQYELL

UniProtKB: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short

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Macromolecule #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 38.534062 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MHHHHHHGSS GSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKL IIWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC R FLDDNQIV ...String:
MHHHHHHGSS GSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKL IIWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC R FLDDNQIV TSSGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD IN AICFFPN GNAFATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAG HDNRVS CLGVTDDGMA VATGSWDSFL KIWN

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

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Macromolecule #3: Receptor activity-modifying protein 2

MacromoleculeName: Receptor activity-modifying protein 2 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 17.839375 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString:
MKTIIALSYI FCLVFADYKD DDDKPLPTTG TPGSEGGTVK NYETAVQFCW NHYKDQMDPI EKDWCDWAMI SRPYSTLRDC LEHFAELFD LGFPNPLAER IIFETHQIHF ANCSLVQPTF SDPPEDVLLA MIIAPICLIP FLITLVVWRS KDSEAQA

UniProtKB: Receptor activity-modifying protein 2

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Macromolecule #4: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 7.861143 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

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Macromolecule #5: Nanobody 35

MacromoleculeName: Nanobody 35 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Lama glama (llama)
Molecular weightTheoretical: 15.140742 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
QVQLQESGGG LVQPGGSLRL SCAASGFTFS NYKMNWVRQA PGKGLEWVSD ISQSGASISY TGSVKGRFTI SRDNAKNTLY LQMNSLKPE DTAVYYCARC PAPFTRDCFD VTSTTYAYRG QGTQVTVSSH HHHHHEPEA

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Macromolecule #6: ADM

MacromoleculeName: ADM / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 6.038813 KDa
SequenceString:
YRQSMNNFQG LRSFGCRFGT CTVQKLAHQI YQFTDKDKDN VAPRSKISPQ GY(NH2)

UniProtKB: Pro-adrenomedullin

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Macromolecule #7: Calcitonin gene-related peptide type 1 receptor

MacromoleculeName: Calcitonin gene-related peptide type 1 receptor / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 56.27452 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MKTIIALSYI FCLVFADYKD DDDLEVLFQG PAELEESPED SIQLGVTRNK IMTAQYECYQ KIMQDPIQQA EGVYCNRTWD GWLCWNDVA AGTESMQLCP DYFQDFDPSE KVTKICDQDG NWFRHPASNR TWTNYTQCNV NTHEKVKTAL NLFYLTIIGH G LSIASLLI ...String:
MKTIIALSYI FCLVFADYKD DDDLEVLFQG PAELEESPED SIQLGVTRNK IMTAQYECYQ KIMQDPIQQA EGVYCNRTWD GWLCWNDVA AGTESMQLCP DYFQDFDPSE KVTKICDQDG NWFRHPASNR TWTNYTQCNV NTHEKVKTAL NLFYLTIIGH G LSIASLLI SLGIFFYFKS LSCQRITLHK NLFFSFVCNS VVTIIHLTAV ANNQALVATN PVSCKVSQFI HLYLMGCNYF WM LCEGIYL HTLIVVAVFA EKQHLMWYYF LGWGFPLIPA CIHAIARSLY YNDNCWISSD THLLYIIHGP ICAALLVNLF FLL NIVRVL ITKLKVTHQA ESNLYMKAVR ATLILVPLLG IEFVLIPWRP EGKIAEEVYD YIMHILMHFQ GLLVSTIFCF FNGE VQAIL RRNWNQYKIQ FGNSFSNSEA LRSASYTVST ISDGPGYSHD CPSEHLNGKS IHDIENVLLK PENLYNPAGL EVLFQ GPHH HHHHHH

UniProtKB: Calcitonin gene-related peptide type 1 receptor

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration4 mg/mL
BufferpH: 7.4
GridSupport film - Material: CARBON / Support film - topology: HOLEY ARRAY / Details: unspecified
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 68.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: INSILICO MODEL
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.0 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 111000
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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