7ytd

Cryo-EM structure of four human FcmR bound to IgM-Fc/J

Method: ELECTRON MICROSCOPY D_max: 176.7 Å Quality: GOOD

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

Immunoglobulin heavy constant mu

Homo sapiens

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 15 PDB declaration: pentadecameric（15） Consistent with protein copy count	Chain A； UniProt 222–452 Chain B； UniProt 222–452 Chain C； UniProt 222–452 Chain D； UniProt 222–452 Chain E； UniProt 222–452 Chain F； UniProt 222–452 Chain G； UniProt 222–452 Chain H； UniProt 222–452 Chain K； UniProt 222–452 Chain L； UniProt 222–452	Not recorded	Immunoglobulin J chain × 1 （P01591） Fas apoptotic inhibitory molecule 3 × 4 （O60667） NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.71 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 7YTD	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
2AGJ Crystal Structure of a glycosylated Fab from an IgM cryoglobulin with properties of a natural proteolytic antibody Deposited 2005-07-27	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric	Chain H 1–183（183 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；PEG 15000-20000, sodium chloride, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 2.60 Å R-free 0.279
6KXS Cryo-EM structure of human IgM-Fc in complex with the J chain and the ectodomain of pIgR Deposited 2019-09-12	Different construct Different oligomeric state Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain A 106–453（348 aa） Chain B 106–453（348 aa） Chain C 106–453（348 aa） Chain D 106–453（348 aa） Chain E 106–453（348 aa） Chain F 106–453（348 aa） Chain G 106–453（348 aa） Chain H 106–453（348 aa） Chain K 106–453（348 aa） Chain L 106–453（348 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
7K0C Structure of Secretory IgM Core Deposited 2020-09-04	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain A 103–453（351 aa） Chain B 103–453（351 aa） Chain E 103–453（351 aa） Chain F 103–453（351 aa） Chain G 103–453（351 aa） Chain H 103–453（351 aa） Chain I 103–453（351 aa） Chain J 103–453（351 aa） Chain K 103–453（351 aa） Chain L 103–453（351 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 3.5 seconds before plunging with blot force 7.	Resolution 3.30 Å
7WSP Structure of a membrane protein M Deposited 2022-01-30	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 106–471（366 aa） Chain D 106–472（367 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7 cryo-EM vitrification conditions Cryogen NITROGEN	Resolution 4.09 Å
7Y09 Cryo-EM structure of human IgM-Fc in complex with the J chain and the DBL domain of DBLMSP Deposited 2022-06-03	Different construct Different oligomeric state	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain A 106–453（348 aa） Chain B 106–453（348 aa） Chain C 106–453（348 aa） Chain D 106–453（348 aa） Chain E 106–453（348 aa） Chain F 106–453（348 aa） Chain G 106–453（348 aa） Chain H 106–453（348 aa） Chain K 106–453（348 aa） Chain L 106–453（348 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.71 Å
7Y0H Cryo-EM structure of human IgM-Fc in complex with the J chain and the P. falciparum VAR2CSA FCR3 Deposited 2022-06-05	Different construct Different oligomeric state Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain A 106–453（348 aa） Chain B 106–453（348 aa） Chain C 106–453（348 aa） Chain D 106–453（348 aa） Chain E 106–453（348 aa） Chain F 106–453（348 aa） Chain G 106–453（348 aa） Chain H 106–453（348 aa） Chain K 106–453（348 aa） Chain L 106–453（348 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.56 Å
7Y0J Cryo-EM structure of human IgM-Fc in complex with the J chain and the P. falciparum TM284VAR1 Deposited 2022-06-05	Different construct Different oligomeric state Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain A 106–453（348 aa） Chain B 106–453（348 aa） Chain C 106–453（348 aa） Chain D 106–453（348 aa） Chain E 106–453（348 aa） Chain F 106–453（348 aa） Chain G 106–453（348 aa） Chain H 106–453（348 aa） Chain K 106–453（348 aa） Chain L 106–453（348 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.62 Å
7YG2 Cryo-EM structure of human IgM-Fc in complex with the J chain and the DBL domain of DBLMSP2 Deposited 2022-07-09	Different construct Different oligomeric state Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain A 106–453（348 aa） Chain B 106–453（348 aa） Chain C 106–453（348 aa） Chain D 106–453（348 aa） Chain E 106–453（348 aa） Chain F 106–453（348 aa） Chain G 106–453（348 aa） Chain H 106–453（348 aa） Chain K 106–453（348 aa） Chain L 106–453（348 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.32 Å
7YSG Cryo-EM structure of human FcmR bound to sIgM Deposited 2022-08-12	Different construct Different oligomeric state Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: hexadecameric	Chain A 222–453（232 aa） Chain B 222–453（232 aa） Chain C 222–453（232 aa） Chain D 222–453（232 aa） Chain E 222–453（232 aa） Chain F 222–453（232 aa） Chain G 222–453（232 aa） Chain H 222–453（232 aa） Chain K 222–453（232 aa） Chain L 222–453（232 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.18 Å
7YTC Cryo-EM structure of human FcmR bound to IgM-Fc/J Deposited 2022-08-14	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain A 222–453（232 aa） Chain B 222–453（232 aa） Chain C 222–453（232 aa） Chain D 222–453（232 aa） Chain E 222–453（232 aa） Chain F 222–453（232 aa） Chain G 222–453（232 aa） Chain H 222–453（232 aa） Chain K 222–453（232 aa） Chain L 222–453（232 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
8GZN IgM-var2CSA complex Deposited 2022-09-27	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: tridecameric	Chain A 1–453（453 aa） Chain B 1–453（453 aa） Chain C 1–453（453 aa） Chain D 1–453（453 aa） Chain E 1–453（453 aa） Chain F 1–453（453 aa） Chain G 1–453（453 aa） Chain H 1–453（453 aa） Chain K 1–453（453 aa） Chain L 1–453（453 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8WYR Cryo-EM structure of human CD5L bound to IgM-Fc/J Deposited 2023-10-31	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 12 PDB declaration: dodecameric	Chain A 106–453（348 aa） Chain B 106–453（348 aa） Chain C 106–453（348 aa） Chain D 106–453（348 aa） Chain E 106–453（348 aa） Chain F 106–453（348 aa） Chain G 106–453（348 aa） Chain H 106–453（348 aa） Chain K 106–453（348 aa） Chain L 106–453（348 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10 CA CALCIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
8WYS Local map of human CD5L bound to IgM-Fc/J Deposited 2023-10-31	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 106–453（348 aa） Chain L 106–453（348 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 CA CALCIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.41 Å
9ARV CryoEM structure of AMETA-A3 Deposited 2024-02-23	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric	Chain A 106–453（348 aa） Chain B 106–453（348 aa） Chain C 106–453（348 aa） Chain D 106–453（348 aa） Chain E 106–453（348 aa） Chain L 106–453（348 aa） Chain M 106–453（348 aa） Chain N 106–453（348 aa） Chain O 106–453（348 aa） Chain P 106–453（348 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9UO3 Cryo-EM structure of the human IgM-Fc hexamer Deposited 2025-04-25	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 12 PDB declaration: dodecameric	Chain A 106–446（341 aa） Chain B 106–446（341 aa） Chain C 106–446（341 aa） Chain D 106–446（341 aa） Chain E 106–446（341 aa） Chain F 106–446（341 aa） Chain G 106–446（341 aa） Chain H 106–446（341 aa） Chain I 106–446（341 aa） Chain J 106–446（341 aa） Chain K 106–446（341 aa） Chain L 106–446（341 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.17 Å
9UO4 Cryo-EM structure of the chimeric human IgM-Fc hexamer Deposited 2025-04-25	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 12 PDB declaration: dodecameric	Chain A 106–433（328 aa） Chain B 106–433（328 aa） Chain C 106–433（328 aa） Chain D 106–433（328 aa） Chain E 106–433（328 aa） Chain F 106–433（328 aa） Chain G 106–433（328 aa） Chain H 106–433（328 aa） Chain I 106–433（328 aa） Chain J 106–433（328 aa） Chain K 106–433（328 aa） Chain L 106–433（328 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.29 Å

16 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	IGHM_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–231； UniProt 222–452 Author chain B； PDBConstruct 1–231； UniProt 222–452 Author chain C； PDBConstruct 1–231； UniProt 222–452 Author chain D； PDBConstruct 1–231； UniProt 222–452 Author chain E； PDBConstruct 1–231； UniProt 222–452 Author chain F； PDBConstruct 1–231； UniProt 222–452 Author chain G； PDBConstruct 1–231； UniProt 222–452 Author chain H； PDBConstruct 1–231； UniProt 222–452 Author chain K； PDBConstruct 1–231； UniProt 222–452 Author chain L； PDBConstruct 1–231； UniProt 222–452

Immunoglobulin J chain

Homo sapiens

UniProt P01591

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 15 PDB declaration: pentadecameric（15） Consistent with protein copy count	Chain J； UniProt 24–159	Not recorded	Immunoglobulin heavy constant mu × 10 （P01871） Fas apoptotic inhibitory molecule 3 × 4 （O60667） NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.71 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7YTD	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
6KXS Cryo-EM structure of human IgM-Fc in complex with the J chain and the ectodomain of pIgR Deposited 2019-09-12	Different oligomeric state Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain J 24–159（136 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.40 Å
6LX3 Cryo-EM structure of human secretory immunoglobulin A Deposited 2020-02-10	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric	Chain J 1–159（159 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.15 Å
6LXW Cryo-EM structure of human secretory immunoglobulin A in complex with the N-terminal domain of SpsA Deposited 2020-02-12	Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 7 PDB declaration: heptameric	Chain J 1–159（159 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.27 Å
6UE7 Structure of dimeric sIgA complex Deposited 2019-09-20	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: hexameric	Chain D 23–159（137 aa） Fragment：UNP residues 23-159	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 7	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
6UE8 Structure of tetrameric sIgA complex (Class 1) Deposited 2019-09-20	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 10 PDB declaration: decameric	Chain D 23–159（137 aa） Fragment：UNP residues 23-159	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
6UE9 Structure of tetrameric sIgA complex (Class 2) Deposited 2019-09-20	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 10 PDB declaration: decameric	Chain D 23–159（137 aa） Fragment：UNP residues 23-159	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 7	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.90 Å
6UEA Structure of pentameric sIgA complex Deposited 2019-09-20	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain D 23–159（137 aa） Fragment：UNP residues 23-159	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.00 Å
7K0C Structure of Secretory IgM Core Deposited 2020-09-04	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain D 23–159（137 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.2 cryo-EM vitrification conditions Cryogen ETHANE；Blot for 3.5 seconds before plunging with blot force 7.	Resolution 3.30 Å
7Y09 Cryo-EM structure of human IgM-Fc in complex with the J chain and the DBL domain of DBLMSP Deposited 2022-06-03	Different oligomeric state	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain J 24–159（136 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.71 Å
7Y0H Cryo-EM structure of human IgM-Fc in complex with the J chain and the P. falciparum VAR2CSA FCR3 Deposited 2022-06-05	Different oligomeric state Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain J 24–159（136 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.56 Å
7Y0J Cryo-EM structure of human IgM-Fc in complex with the J chain and the P. falciparum TM284VAR1 Deposited 2022-06-05	Different oligomeric state Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain J 24–159（136 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.62 Å
7YG2 Cryo-EM structure of human IgM-Fc in complex with the J chain and the DBL domain of DBLMSP2 Deposited 2022-07-09	Different oligomeric state Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain J 24–159（136 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.32 Å
7YSG Cryo-EM structure of human FcmR bound to sIgM Deposited 2022-08-12	Different oligomeric state Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: hexadecameric	Chain J 24–159（136 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.18 Å
7YTC Cryo-EM structure of human FcmR bound to IgM-Fc/J Deposited 2022-08-14	Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain J 24–159（136 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
8GZN IgM-var2CSA complex Deposited 2022-09-27	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: tridecameric	Chain J 24–159（136 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8R83 pentameric IgMFc-AIM complex global refinement Deposited 2023-11-28	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: 12-meric	Chain J 1–159（159 aa）	Not recorded	CA CALCIUM ION × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.57 Å
8R84 pentameric IgMFc-AIM complex focused refinement Deposited 2023-11-28	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: hexameric	Chain J 1–159（159 aa）	Not recorded	CA CALCIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
8SKU Structure of human SIgA1 in complex with human CD89 (FcaR1) Deposited 2023-04-20	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 8 PDB declaration: octameric	Chain J 23–159（137 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.20 Å
8SKV Structure of human SIgA1 in complex with Streptococcus pyogenes protein M4 (Arp4) Deposited 2023-04-20	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 8 PDB declaration: octameric	Chain J 23–159（137 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 7	ELECTRON MICROSCOPY cryo-EM buffer pH 7 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
8WYR Cryo-EM structure of human CD5L bound to IgM-Fc/J Deposited 2023-10-31	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 12 PDB declaration: dodecameric	Chain J 1–159（159 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10 CA CALCIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
8WYS Local map of human CD5L bound to IgM-Fc/J Deposited 2023-10-31	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: tetrameric	Chain J 1–159（159 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 CA CALCIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.41 Å
9ARV CryoEM structure of AMETA-A3 Deposited 2024-02-23	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: undecameric	Chain J 1–159（159 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.60 Å
9MBZ Cryo-EM structure of human FcRL4 bound to IgA-Fc/J Deposited 2025-03-17	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric	Chain J 1–159（159 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY mmCIF provides none of the parsed conditions	Resolution 3.30 Å

23 other PDB entries and 23 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	IGJ_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain J； PDBConstruct 1–136； UniProt 24–159

Fas apoptotic inhibitory molecule 3

Homo sapiens

UniProt O60667

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 15 PDB declaration: pentadecameric（15） Consistent with protein copy count	Chain R； UniProt 18–124 Chain S； UniProt 18–124 Chain U； UniProt 18–124 Chain V； UniProt 18–124	Not recorded	Immunoglobulin heavy constant mu × 10 （P01871） Immunoglobulin J chain × 1 （P01591） NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE	Resolution 3.71 Å

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 7YTD	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
7YSG Cryo-EM structure of human FcmR bound to sIgM Deposited 2022-08-12	Different oligomeric state Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 16 PDB declaration: hexadecameric	Chain R 18–124（107 aa） Chain S 18–124（107 aa） Chain U 18–124（107 aa） Chain V 18–124（107 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.18 Å
7YTC Cryo-EM structure of human FcmR bound to IgM-Fc/J Deposited 2022-08-14	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: dodecameric	Chain R 18–124（107 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 11	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.39 Å
7YTE crystal structure of human FcmR-D1 bound to IgM C4-domain Deposited 2022-08-14	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain C 18–124（107 aa） Chain D 18–124（107 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291 K；1:1 ratio of protein:reservoir solution containing 0.1 M Ammonium citrate tribasic (pH 7.0) and 12% (w/v) PEG 3,350	Resolution 3.00 Å R-free 0.269
8BPE 8:1 binding of FcMR on IgM pentameric core Deposited 2022-11-16	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 19 PDB declaration: nonadecameric	Chain I 18–251（234 aa） Chain M 18–251（234 aa） Chain N 18–251（234 aa） Chain O 18–251（234 aa） Chain P 18–251（234 aa） Chain Q 18–251（234 aa） Chain R 18–251（234 aa） Chain S 18–251（234 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.63 Å
8BPF FcMR binding at subunit Fcu1 of IgM pentamer Deposited 2022-11-16	Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric	Chain I 18–251（234 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.50 Å
8BPG FcMR binding at subunit Fcu3 of IgM pentamer Deposited 2022-11-16	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: hexameric	Chain A 18–251（234 aa） Chain B 18–251（234 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 7.5 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å

6 other PDB entries and 6 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	FAIM3_HUMAN
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain R； PDBConstruct 1–107； UniProt 18–124 Author chain S； PDBConstruct 1–107； UniProt 18–124 Author chain U； PDBConstruct 1–107； UniProt 18–124 Author chain V； PDBConstruct 1–107； UniProt 18–124

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.

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	7ytd
Deposition date deposition_date	2022-08-14
Structure title title	Cryo-EM structure of four human FcmR bound to IgM-Fc/J
Keywords keywords	immunoglobin M, IMMUNE SYSTEM; IMMUNE SYSTEM
Experimental Method method	ELECTRON MICROSCOPY

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	55.29 Å
Radius of gyration Rg (electron density) rg_electron	55.27 Å
Forward intensity I(0) i0	1396580000.00
Molecular weight molecular_weight	308810.0 kDa
Excluded volume excluded_volume	385480 Å³
Envelope volume envelope_volume	613000 Å³
Hydration-shell volume shell_volume	93792 Å³
Envelope diameter envelope_diameter	189.0 Å
Shell Rg shell_rg	55.92 Å
Envelope Rg envelope_rg	54.88 Å
Shape Rg shape_rg	55.31 Å
Total Rg total_rg	55.15 Å
Total atoms total_atoms	21693
Residues n_residues	2777
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	176.7 Å
Rg (real space) rg_real	55.38 Å
Rg uncertainty (real space) rg_real_error	1.54 Å
I(0) (real space) i0_real	1.3970e+09
I(0) uncertainty (real space) i0_real_error	2.6880e+07
Rg (reciprocal space) rg_reciprocal	55.20 Å
I(0) (reciprocal space) i0_reciprocal	1396000000.0000
Solution quality estimate total_estimate	0.8432
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	1
Primary peak position r_peak_primary	56.8 Å
Skewness Skewness skewness	0.391
Kurtosis Kurtosis kurtosis	-0.332
Angular range angular_range	— – 0.1400 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	135100000.0000
Real-space data points n_real_points	29
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.917; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.210

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	Immunoglobulin heavy constant mu
Molecular weight formula_weight	25448.6 kDa
Source method src_method	man
Copy count entity_count	10

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,H,K,L
Atom count atom_count	21693

IRVFAIPPSFASIFLTKSTKLTCLVTDLTTYDSVTISWTRQNGEAVKTHTNISESHPNATFSAVGEASICEDDWNSGERFTCTVTHTDLPSPLKQTISRPKGVALHRPDVYLLPPAREQLNLRESATITCLVTGFSPADVFVQWMQRGQPLSPEKYVTSAPMPEPQAPGRYFAHSILTVSEEEWNTGETYTCVVAHEALPNRVTERTVDKSTGKPTLYNVSLVMSDTAGTC

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 2 Entity 2 polymer

Description description	Immunoglobulin J chain
Molecular weight formula_weight	15483.3 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	J

EDERIVLVDNKCKCARITSRIIRSSEDPNEDIVERNIRIIVPLNNRENISDPTSPLRTRFVYHLSDLCKKCDPTEVELDNQIVTATQSNICDEDSATETCYTYDRNKCYTAVVPLVYGGETKMVETALTPDACYPD

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Homo sapiens

Entity 3 Entity 3 polymer

Description description	Fas apoptotic inhibitory molecule 3
Molecular weight formula_weight	11723.6 kDa
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	R,S,U,V

RILPEVKVEGELGGSVTIKCPLPEMHVRIYLCREMAGSGTCGTVVSTTNFIKAEYKGRVTLKQYPRKNLFLVEVTQLTESDSGVYACGAGMNTDRGKTQKVTLNVHS

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Trichoplusia ni

Entity 4 Entity 4 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	man
Copy count entity_count	10

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7. Fold Classification (SCOP + CATH) 24 domains

CATH v4.4 (24 domains)

Domain ID domain_id	7ytdA01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdA02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdB01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdB02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdC01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdC02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdD01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdD02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdE01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdE02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdF01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdF02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdG01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdG02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdH01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdH02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdK01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdK02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdL01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdL02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdR01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdS01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdU01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	7ytdV01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

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8. Citations (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	3.71 Å
Resolution测定方法 resolution_method	—
颗粒数 num_particles	202159

fit	/app/data/saxs_computation/yt/7ytd/7ytd.fit
pddf	/app/data/pr_computation/yt/7ytd/7ytd.pr.out
profile	/app/data/saxs_computation/yt/7ytd/7ytd.dat

Cryo-EM structure of four human FcmR bound to IgM-Fc/J

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

Immunoglobulin heavy constant mu

State in the Current Structure

Other States of the Same Protein in the Database

Immunoglobulin J chain

State in the Current Structure

Other States of the Same Protein in the Database

Fas apoptotic inhibitory molecule 3

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

6. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 polymer

Polymer Polymer

来源 Source

Entity 3 Entity 3 polymer

Polymer Polymer

来源 Source

Entity 4 Entity 4 non-polymer

7. Fold Classification (SCOP + CATH) 24 domains

CATH v4.4 (24 domains)

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)