SAXSdb — 9lrb

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1. Protein Identity and Related Structures Protein Identity & Related Structures

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

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Heteromer	Protein 5	Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 （P54311） Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 （P63212） nanobody 35 × 1 Histamine H1 receptor,Genome polyprotein × 1 （P35367,W8GG88） HISTAMINE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GNAS2_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–60； UniProt 5–64 Author chain A； PDBConstruct 69–249； UniProt 204–394

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

Rattus norvegicus

UniProt P54311

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Heteromer	Protein 5	Guanine nucleotide-binding protein G(s) subunit alpha isoforms short × 1 （P63092） Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 （P63212） nanobody 35 × 1 Histamine H1 receptor,Genome polyprotein × 1 （P35367,W8GG88） HISTAMINE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GBB1_RAT
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 13–351； UniProt 2–340

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

Bos taurus

UniProt P63212

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Heteromer	Protein 5	Guanine nucleotide-binding protein G(s) subunit alpha isoforms short × 1 （P63092） Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 （P54311） nanobody 35 × 1 Histamine H1 receptor,Genome polyprotein × 1 （P35367,W8GG88） HISTAMINE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GBG2_BOVIN
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain G； PDBConstruct 1–67； UniProt 1–67

Histamine H1 receptor,Genome polyprotein

Homo sapiens

UniProt P35367

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Heteromer	Protein 5	Guanine nucleotide-binding protein G(s) subunit alpha isoforms short × 1 （P63092） Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 （P54311） Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 （P63212） nanobody 35 × 1 HISTAMINE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	HRH1_HUMAN
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain R； PDBConstruct 27–513； UniProt 1–487

Histamine H1 receptor,Genome polyprotein

Homo sapiens

UniProt W8GG88

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Heteromer	Protein 5	Guanine nucleotide-binding protein G(s) subunit alpha isoforms short × 1 （P63092） Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 （P54311） Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 （P63212） nanobody 35 × 1 HISTAMINE × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	W8GG88_9HEPC
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain R； PDBConstruct 552–789； UniProt 2357–2594

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	9lrb
Deposition date deposition_date	2025-01-30
Structure title title	Cryo-EM structure of the histamine H1 receptor-Gs protein complex
Keywords keywords	GPCR, Class A GPCR, Histamine, G protein, Complex, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

9lrb__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

9lrb__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9lrb__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	34.91 Å
Rg (electron density)	35.04 Å
Total Rg	35.50 Å
Atom count	8102
Residues	1018
Excluded volume	144250 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9lrb__assembly_1__model_1`	pentameric （5）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Description description	Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Molecular weight formula_weight	28964.7 kDa
EC 编号 ec_number	3.6.5.-
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	8102

GNSKTEDQRNEEKAQREANKKIEKQLQKDKQVYRATHRLLLLGADNSGKSTIVKQMRILHGGSGGSGGTSGIFETKFQVDKVNFHMFDVGGQRDERRKWIQCFNDVTAIIFVVDSSDYNRLQEALNLFKSIWNNRWLRTISVILFLNKQDLLAEKVLAGKSKIEDYFPEFARYTTPEDATPEPGEDPRVTRAKYFIRDEFLRISTASGDGRHYCYPHFTCAVDTENARRIFNDCRDIIQRMHLRQYELL

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Molecular weight formula_weight	38744.4 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

MHHHHHHGSLLQSELDQLRQEAEQLKNQIRDARKACADATLSQITNNIDPVGRIQMRTRRTLRGHLAKIYAMHWGTDSRLLVSASQDGKLIIWDSYTTNKVHAIPLRSSWVMTCAYAPSGNYVACGGLDNICSIYNLKTREGNVRVSRELAGHTGYLSCCRFLDDNQIVTSSGDTTCALWDIETGQQTTTFTGHTGDVMSLSLAPDTRLFVSGACDASAKLWDVREGMCRQTFTGHESDINAICFFPNGNAFATGSDDATCRLFDLRADQELMTYSHDNIICGITSVSFSKSGRLLLAGYDDFNCNVWDALKADRAGVLAGHDNRVSCLGVTDDGMAVATGSWDSFLKIWN

Source Source

Source organism organism	Rattus norvegicus
Common name common_name	Norway rat
NCBI taxonomy ID ncbi_taxonomy_id	10116
Host organism host_organism	Escherichia coli

Entity 3 Entity 3 polymer

Description description	Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Molecular weight formula_weight	7547.7 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	G

MASNNTASIAQARKLVEQLKMEANIDRIKVSKAAADLMAYCEAHAKEDPLLTPVPASENPFREKKFFS

Source Source

Source organism organism	Bos taurus
Common name common_name	domestic cattle
NCBI taxonomy ID ncbi_taxonomy_id	9913
Host organism host_organism	Escherichia coli

Entity 4 Entity 4 polymer

Description description	nanobody 35
Molecular weight formula_weight	15015.7 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	N

MGQVQLQESGGGLVQPGGSLRLSCAASGFTFSNYKMNWVRQAPGKGLEWVSDISQSGASISYTGSVKGRFTISRDNAKNTLYLQMNSLKPEDTAVYYCARCPAPFTRDCFDVTSTTYAYRGQGTQVTVSSLHHHHHH

Source Source

Source organism organism	unidentified
NCBI taxonomy ID ncbi_taxonomy_id	32644
Host organism host_organism	Escherichia coli

Entity 5 Entity 5 polymer

Description description	Histamine H1 receptor,Genome polyprotein
Molecular weight formula_weight	90333.7 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	R

MKTIIALSYIFCLVFADYKDDDDKEFMSLPNSSCLLEDKMCEGNKTTMASPQLMPLVVVLSTICLVTVGLNLLVLYAVRSERKLHTVGNLYIVSLSVADLIVGAVVMPMNILYLLMSKWSLGRPLCLFWLSMDYVASTASIFSVFILCIDRYRSVQQPLRYLKYRTKTRASATILGAWFLSFLWVIPILGWNHFMQQTSVRREDKCETDFYDVTWFKVMTAIINFYLPTLLMLWFYAKIYKAVRQHCQHRELINRSLPSFSEIKLRPENPKGDAKKPGKESPWEVLKRKPKDAGGGSVLKSPSQTPKEMKSPVVFSQEDDREVDKLYCFPLDIVHMQAAAEGSSRDYVAVNRSHGQLKTDEQGLNTHGASEISEDQMLGDSQSFSRTDSDTTTETAPGKGKLRSGSNTGLDYIKFTWKRLRSHSRQYVSGLHMNRERKAAKQLGFIMAAFILCWIPYFIFFMVIAFCKNCCNEHLHMFTIWLGYINSTLNPLIYPLCNENFKKTFKRILHIRSGGSGGGGSGGSSSGGGSSGGSGGGSGGSGGLEVLFQGPVSKGEELFTGVVPILVELDGDVNGHKFSVSGEGEGDATYGKLTLKFICTTGKLPVPWPTLVTTLTYGVQCFSRYPDHMKQHDFFKSAMPEGYVQERTIFFKDDGNYKTRAEVKFEGDTLVNRIELKGIDFKEDGNILGHKLEYNYNSHNVYIMADKQKNGIKVNFKIRHNIEDGSVQLADHYQQNTPIGDGPVLLPDNHYLSTQSKLSKDPNEKRDHMVLLEFVTAAGITLGMDELYKSGLRSHHHHHHHH

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Homo sapiens

Entity 6 Entity 6 non-polymer

Description description	HISTAMINE
Molecular weight formula_weight	111.1 kDa
Source method src_method	syn
Copy count entity_count	1

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	2.77 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	244303

Cryo-EM structure of the histamine H1 receptor-Gs protein complex

1. Protein Identity and Related Structures Protein Identity & Related Structures

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

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

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

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

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

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Histamine H1 receptor,Genome polyprotein

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Histamine H1 receptor,Genome polyprotein

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

9lrb__assembly_1__model_1

9lrb__assembly_1__model_1 | I(q)

9lrb__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 polymer

Polymer Polymer

Source Source

Entity 5 Entity 5 polymer

Polymer Polymer

Source Source

Entity 6 Entity 6 non-polymer

7. Citations (1)