SAXSdb — 9rsx

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

Mitogen-activated protein kinase kinase kinase 20

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	Plasminogen activator inhibitor 1 RNA-binding protein × 1 （Q8NC51） 40S ribosomal protein S3 × 1 （P23396） Receptor of activated protein C kinase 1 × 1 （P63244）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	M3K20_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain N2； PDBConstruct 1–800； UniProt 1–800

Plasminogen activator inhibitor 1 RNA-binding protein

OrganismNot specified

UniProt Q8NC51

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	Mitogen-activated protein kinase kinase kinase 20 × 1 （Q9NYL2） 40S ribosomal protein S3 × 1 （P23396） Receptor of activated protein C kinase 1 × 1 （P63244）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PAIRB_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain N3； PDBConstruct 1–408； UniProt 1–408

40S ribosomal protein S3

OrganismNot specified

UniProt P23396

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	Mitogen-activated protein kinase kinase kinase 20 × 1 （Q9NYL2） Plasminogen activator inhibitor 1 RNA-binding protein × 1 （Q8NC51） Receptor of activated protein C kinase 1 × 1 （P63244）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS3_HUMAN
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain RD； PDBConstruct 1–243； UniProt 1–243

Receptor of activated protein C kinase 1

OrganismNot specified

UniProt P63244

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	Mitogen-activated protein kinase kinase kinase 20 × 1 （Q9NYL2） Plasminogen activator inhibitor 1 RNA-binding protein × 1 （Q8NC51） 40S ribosomal protein S3 × 1 （P23396）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RACK1_HUMAN
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain Rg； PDBConstruct 1–317； UniProt 1–317

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	9rsx
Deposition date deposition_date	2025-07-01
Structure title title	Structure of RACK1 bound to the C-terminus of SERBP1 and the RIH region of ZAK
Keywords keywords	ZAK, collision, RSR, quality control, RIBOSOME; RIBOSOME
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.

9rsx__assembly_1__model_1

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

Download this curve (.dat)

9rsx__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9rsx__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	20.62 Å
Rg (electron density)	19.53 Å
Total Rg	20.55 Å
Atom count	2733
Residues	353
Excluded volume	48342 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9rsx__assembly_1__model_1`	tetrameric （4）	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 (4)

Entity 1 Entity 1 polymer

Description description	Mitogen-activated protein kinase kinase kinase 20
Molecular weight formula_weight	91284.1 kDa
EC 编号 ec_number	2.7.11.25
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	N2
Atom count atom_count	2733

MSSLGASFVQIKFDDLQFFENCGGGSFGSVYRAKWISQDKEVAVKKLLKIEKEAEILSVLSHRNIIQFYGVILEPPNYGIVTEYASLGSLYDYINSNRSEEMDMDHIMTWATDVAKGMHYLHMEAPVKVIHRDLKSRNVVIAADGVLKICDFGASRFHNHTTHMSLVGTFPWMAPEVIQSLPVSETCDTYSYGVVLWEMLTREVPFKGLEGLQVAWLVVEKNERLTIPSSCPRSFAELLHQCWEADAKKRPSFKQIISILESMSNDTSLPDKCNSFLHNKAEWRCEIEATLERLKKLERDLSFKEQELKERERRLKMWEQKLTEQSNTPLLPSFEIGAWTEDDVYCWVQQLVRKGDSSAEMSVYASLFKENNITGKRLLLLEEEDLKDMGIVSKGHIIHFKSAIEKLTHDYINLFHFPPLIKDSGGEPEENEEKIVNLELVFGFHLKPGTGPQDCKWKMYMEMDGDEIAITYIKDVTFNTNLPDAEILKMTKPPFVMEKWIVGIAKSQTVECTVTYESDVRTPKSTKHVHSIQWSRTKPQDEVKAVQLAIQTLFTNSDGNPGSRSDSSADCQWLDTLRMRQIASNTSLQRSQSNPILGSPFFSHFDGQDSYAAAVRRPQVPIKYQQITPVNQSRSSSPTQYGLTKNFSSLHLNSRDSGFSSGNTDTSSERGRYSDRSRNKYGRGSISLNSSPRGRYSGKSQHSTPSRGRYPGKFYRVSQSALNPHQSPDFKRSPRDLHQPNTIPGMPLHPETDSRASEEDSKVSEGGWTKVEYRKKPHRPSPAKTNKERARGDHRGWRNF

Entity 2 Entity 2 polymer

Description description	Plasminogen activator inhibitor 1 RNA-binding protein
Molecular weight formula_weight	45051.5 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	N3

MPGHLQEGFGCVVTNRFDQLFDDESDPFEVLKAAENKKKEAGGGGVGGPGAKSAAQAAAQTNSNAAGKQLRKESQKDRKNPLPPSVGVVDKKEETQPPVALKKEGIRRVGRRPDQQLQGEGKIIDRRPERRPPRERRFEKPLEEKGEGGEFSVDRPIIDRPIRGRGGLGRGRGGRGRGMGRGDGFDSRGKREFDRHSGSDRSSFSHYSGLKHEDKRGGSGSHNWGTVKDELTESPKYIQKQISYNYSDLDQSNVTEETPEGEEHHPVADTENKENEVEEVKEEGPKEMTLDEWKAIQNKDRAKVEFNIRKPNEGADGQWKKGFVLHKSKSEEAHAEDSVMDHHFRKPANDITSQLEINFGDLGRPGRGGRGGRGGRGRGGRPNRGSRTDKSSASAPDVDDPEAFPALA

Entity 3 Entity 3 polymer

Description description	40S ribosomal protein S3
Molecular weight formula_weight	26729.4 kDa
EC 编号 ec_number	4.2.99.18
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	RD

MAVQISKKRKFVADGIFKAELNEFLTRELAEDGYSGVEVRVTPTRTEIIILATRTQNVLGEKGRRIRELTAVVQKRFGFPEGSVELYAEKVATRGLCAIAQAESLRYKLLGGLAVRRACYGVLRFIMESGAKGCEVVVSGKLRGQRAKSMKFVDGLMIHSGDPVNYYVDTAVRHVLLRQGVLGIKVKIMLPWDPTGKIGPKKPLPDHVSIVEPKDEILPTTPISEQKGGKPEPPAMPQPVPTA

Entity 4 Entity 4 polymer

Description description	Receptor of activated protein C kinase 1
Molecular weight formula_weight	35115.7 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	Rg

MTEQMTLRGTLKGHNGWVTQIATTPQFPDMILSASRDKTIIMWKLTRDETNYGIPQRALRGHSHFVSDVVISSDGQFALSGSWDGTLRLWDLTTGTTTRRFVGHTKDVLSVAFSSDNRQIVSGSRDKTIKLWNTLGVCKYTVQDESHSEWVSCVRFSPNSSNPIIVSCGWDKLVKVWNLANCKLKTNHIGHTGYLNTVTVSPDGSLCASGGKDGQAMLWDLNEGKHLYTLDGGDIINALCFSPNRYWLCAATGPSIKIWDLEGKIIVDELKQEVISTSSKAEPPQCTSLAWSADGQTLFAGYTDNLVRVWQVTIGTR

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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	triclinic

Resolution resolution	2.91 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	108673

Structure of RACK1 bound to the C-terminus of SERBP1 and the RIH region of ZAK

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

Mitogen-activated protein kinase kinase kinase 20

State in the Current Structure

Other States of the Same Protein in the Database

Plasminogen activator inhibitor 1 RNA-binding protein

State in the Current Structure

Other States of the Same Protein in the Database

40S ribosomal protein S3

State in the Current Structure

Other States of the Same Protein in the Database

Receptor of activated protein C kinase 1

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

9rsx__assembly_1__model_1

9rsx__assembly_1__model_1 | I(q)

9rsx__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

7. Citations (1)

Structure of RACK1 bound to the C-terminus of SERBP1 and the RIH region of ZAK

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

Mitogen-activated protein kinase kinase kinase 20

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Plasminogen activator inhibitor 1 RNA-binding protein

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

40S ribosomal protein S3

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Receptor of activated protein C kinase 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

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

9rsx__assembly_1__model_1

9rsx__assembly_1__model_1 | I(q)

9rsx__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

7. Citations (1)