4d18

Crystal structure of the COP9 signalosome

Method: X-RAY DIFFRACTION

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

COP9 SIGNALOSOME COMPLEX SUBUNIT 1

HOMO SAPIENS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CSN1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 5–480； UniProt 52–527 Author chain I； PDBConstruct 5–480； UniProt 52–527

COP9 SIGNALOSOME COMPLEX SUBUNIT 2

HOMO SAPIENS

UniProt P61201

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CSN2_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 5–447； UniProt 1–443 Author chain J； PDBConstruct 5–447； UniProt 1–443

COP9 SIGNALOSOME COMPLEX SUBUNIT 3

HOMO SAPIENS

UniProt Q9UNS2

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CSN3_HUMAN
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 5–427； UniProt 1–423 Author chain K； PDBConstruct 5–427； UniProt 1–423

COP9 SIGNALOSOME COMPLEX SUBUNIT 4

HOMO SAPIENS

UniProt Q9BT78

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CSN4_HUMAN
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain D； PDBConstruct 5–410； UniProt 1–406 Author chain L； PDBConstruct 5–410； UniProt 1–406

COP9 SIGNALOSOME COMPLEX SUBUNIT 5

HOMO SAPIENS

UniProt Q92905

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CSN5_HUMAN
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain E； PDBConstruct 5–327； UniProt 12–334 Author chain M； PDBConstruct 5–327； UniProt 12–334

COP9 SIGNALOSOME COMPLEX SUBUNIT 6

HOMO SAPIENS

UniProt Q7L5N1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CSN6_HUMAN
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain F； PDBConstruct 5–331； UniProt 1–327 Author chain N； PDBConstruct 5–331； UniProt 1–327

COP9 SIGNALOSOME COMPLEX SUBUNIT 7A

HOMO SAPIENS

UniProt Q9UBW8

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 8 × 1 （Q99627） ZINC ION × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CSN7A_HUMAN
Isoform	—
PDB entities	7
Chains and sequence ranges	Author chain G； PDBConstruct 5–222； UniProt 1–218 Author chain O； PDBConstruct 5–222； UniProt 1–218

COP9 SIGNALOSOME COMPLEX SUBUNIT 8

HOMO SAPIENS

UniProt Q99627

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） ZINC ION × 1	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 8	COP9 SIGNALOSOME COMPLEX SUBUNIT 1 × 1 （Q13098） COP9 SIGNALOSOME COMPLEX SUBUNIT 2 × 1 （P61201） COP9 SIGNALOSOME COMPLEX SUBUNIT 3 × 1 （Q9UNS2） COP9 SIGNALOSOME COMPLEX SUBUNIT 4 × 1 （Q9BT78） COP9 SIGNALOSOME COMPLEX SUBUNIT 5 × 1 （Q92905） COP9 SIGNALOSOME COMPLEX SUBUNIT 6 × 1 （Q7L5N1） COP9 SIGNALOSOME COMPLEX SUBUNIT 7A × 1 （Q9UBW8） ZINC ION × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CSN8_HUMAN
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain H； PDBConstruct 5–213； UniProt 1–209 Author chain P； PDBConstruct 5–213； UniProt 1–209

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	4d18
Deposition date deposition_date	2014-05-01
Structure title title	Crystal structure of the COP9 signalosome
Keywords keywords	SIGNALING PROTEIN, PCI COMPLEX, CSN, SGN, MPN DOMAIN; SIGNALING PROTEIN
Experimental Method method	X-RAY DIFFRACTION

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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.

4d18__assembly_1__model_1

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

Download this curve (.dat)

4d18__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4d18__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	53.37 Å
Rg (electron density)	53.41 Å
Total Rg	53.47 Å
Atom count	20711
Residues	2589
Excluded volume	370320 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4d18__assembly_1__model_1`	octameric （8）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`4d18__assembly_2__model_1`	octameric （8）	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 (9)

Entity 1 Entity 1 polymer

Description description	COP9 SIGNALOSOME COMPLEX SUBUNIT 1
Molecular weight formula_weight	54222.8 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,I
Atom count atom_count	41422

GGGRGAVEPMQIDVDPQEDPQNAPDVNYVVENPSLDLEQYAASYSGLMRIERLQFIADHCPTLRVEALKMALSFVQRTFNVDMYEEIHRKLSEATRELQNAPDAIPESGVEPPALDTAWVEATRKKALLKLEKLDTDLKNYKGNSIKESIRRGHDDLGDHYLDCGDLSNALKCYSRARDYCTSAKHVINMCLNVIKVSVYLQNWSHVLSYVSKAESTPEIAEQRGERDSQTQAILTKLKCAAGLAELAARKYKQAAKCLLLASFDHCDFPELLSPSNVAIYGGLCALATFDRQELQRNVISSSSFKLFLELEPQVRDIIFKFYESKYASCLKMLDEMKDNLLLDMYLAPHVRTLYTQIRNRALIQYFSPYVSADMHRMAAAFNTTVAALEDELTQLILEGLISARVDSHSKILYARDVDQRSTTFEKSLLMGKEFQRRAKAMMLRAAVLRNQIHVKSPPREGSQGELTPANSQSRMSTNM

Source Source

Source organism organism	HOMO SAPIENS
Common name common_name	HUMAN
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	TRICHOPLUSIA NI

Entity 2 Entity 2 polymer

Description description	COP9 SIGNALOSOME COMPLEX SUBUNIT 2
Molecular weight formula_weight	51992.9 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,J

GGGRMSDMEDDFMCDDEEDYDLEYSEDSNSEPNVDLENQYYNSKALKEDDPKAALSSFQKVLELEGEKGEWGFKALKQMIKINFKLTNFPEMMNRYKQLLTYIRSAVTRNYSEKSINSILDYISTSKQMDLLQEFYETTLEALKDAKNDRLWFKTNTKLGKLYLEREEYGKLQKILRQLHQSCQTDDGEDDLKKGTQLLEIYALEIQMYTAQKNNKKLKALYEQSLHIKSAIPHPLIMGVIRECGGKMHLREGEFEKAHTDFFEAFKNYDESGSPRRTTCLKYLVLANMLMKSGINPFDSQEAKPYKNDPEILAMTNLVSAYQNNDITEFEKILKTNHSNIMDDPFIREHIEELLRNIRTQVLIKLIKPYTRIHIPFISKELNIDVADVESLLVQCILDNTIHGRIDQVNQLLELDHQKRGGARYTALDKWTNQLNSLNQAVVSKLA

Source Source

Source organism organism	HOMO SAPIENS
Common name common_name	HUMAN
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	TRICHOPLUSIA NI

Entity 3 Entity 3 polymer

Description description	COP9 SIGNALOSOME COMPLEX SUBUNIT 3
Molecular weight formula_weight	48252.4 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,K

GGGRMASALEQFVNSVRQLSAQGQMTQLCELINKSGELLAKNLSHLDTVLGALDVQEHSLGVLAVLFVKFSMPSVPDFETLFSQVQLFISTCNGEHIRYATDTFAGLCHQLTNALVERKQPLRGIGILKQAIDKMQMNTNQLTSIHADLCQLCLLAKCFKPALPYLDVDMMDICKENGAYDAKHFLCYYYYGGMIYTGLKNFERALYFYEQAITTPAMAVSHIMLESYKKYILVSLILLGKVQQLPKYTSQIVGRFIKPLSNAYHELAQVYSTNNPSELRNLVNKHSETFTRDNNMGLVKQCLSSLYKKNIQRLTKTFLTLSLQDMASRVQLSGPQEAEKYVLHMIEDGEIFASINQKDGMVSFHDNPEKYNNPAMLHNIDQEMLKCIELDERLKAMDQEITVNPQFVQKSMGSQEDDSGNKPSSYS

Source Source

Source organism organism	HOMO SAPIENS
Common name common_name	HUMAN
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	TRICHOPLUSIA NI

Entity 4 Entity 4 polymer

Description description	COP9 SIGNALOSOME COMPLEX SUBUNIT 4
Molecular weight formula_weight	46651.0 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D,L

GGGRMAAAVRQDLAQLMNSSGSHKDLAGKYRQILEKAIQLSGAEQLEALKAFVEAMVNENVSLVISRQLLTDFCTHLPNLPDSTAKEIYHFTLEKIQPRVISFEEQVASIRQHLASIYEKEEDWRNAAQVLVGIPLETGQKQYNVDYKLETYLKIARLYLEDDDPVQAEAYINRASLLQNESTNEQLQIHYKVCYARVLDYRRKFIEAAQRYNELSYKTIVHESERLEALKHALHCTILASAGQQRSRMLATLFKDERCQQLAAYGILEKMYLDRIIRGNQLQEFAAMLMPHQKATTADGSSILDRAVIEHNLLSASKLYNNITFEELGALLEIPAAKAEKIASQMITEGRMNGFIDQIDGIVHFETREALPTWDKQIQSLCFQVNNLLEKISQTAPEWTAQAMEAQMAQ

Source Source

Source organism organism	HOMO SAPIENS
Common name common_name	HUMAN
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	TRICHOPLUSIA NI

Entity 5 Entity 5 polymer

Description description	COP9 SIGNALOSOME COMPLEX SUBUNIT 5
Molecular weight formula_weight	36928.9 kDa
EC 编号 ec_number	3.4.-.-
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E,M

GGGRTWELANNMQEAQSIDEIYKYDKKQQQEILAAKPWTKDHHYFKYCKISALALLKMVMHARSGGNLEVMGLMLGKVDGETMIIMDSFALPVEGTETRVNAQAAAYEYMAAYIENAKQVGRLENAIGWYHSHPGYGCWLSGIDVSTQMLNQQFQEPFVAVVIDPTRTISAGKVNLGAFRTYPKGYKPPDEGPSEYQTIPLNKIEDFGVHCKQYYALEVSYFKSSLDRKLLELLWNKYWVNTLSSSSLLTNADYTTGQVFDLSEKLEQSEAQLGRGSFMLGLETHDRKSEDKLAKATRDSCKTTIEAIHGLMSQVIKDKLFNQINIS

Source Source

Source organism organism	HOMO SAPIENS
Common name common_name	HUMAN
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	TRICHOPLUSIA NI

Entity 6 Entity 6 polymer

Description description	COP9 SIGNALOSOME COMPLEX SUBUNIT 6
Molecular weight formula_weight	36531.7 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F,N

GGGRMAAAAAAAAATNGTGGSSGMEVDAAVVPSVMACGVTGSVSVALHPLVILNISDHWIRMRSQEGRPVQVIGALIGKQEGRNIEVMNSFELLSHTVEEKIIIDKEYYYTKEEQFKQVFKELEFLGWYTTGGPPDPSDIHVHKQVCEIIESPLFLKLNPMTKHTDLPVSVFESVIDIINGEATMLFAELTYTLATEEAERIGVDHVARMTATGSGENSTVAEHLIAQHSAIKMLHSRVKLILEYVKASEAGEVPFNHEILREAYALCHCLPVLSTDKFKTDFYDQCNDVGLMAYLGTITKTCNTMNQFVNKFNVLYDRQGIGRRMRGLFF

Source Source

Source organism organism	HOMO SAPIENS
Common name common_name	HUMAN
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	TRICHOPLUSIA NI

Entity 7 Entity 7 polymer

Description description	COP9 SIGNALOSOME COMPLEX SUBUNIT 7A
Molecular weight formula_weight	24649.2 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	G,O

GGGRMSAEVKVTGQNQEQFLLLAKSAKGAALATLIHQVLEAPGVYVFGELLDMPNVRELAESDFASTFRLLTVFAYGTYADYLAEARNLPPLTEAQKNKLRHLSVVTLAAKVKCIPYAVLLEALALRNVRQLEDLVIEAVYADVLRGSLDQRNQRLEVDYSIGRDIQRQDLSAIARTLQEWCVGCEVVLSGIEEQVSRANQHKEQQLGLKQQIESEVANLKK

Source Source

Source organism organism	HOMO SAPIENS
Common name common_name	HUMAN
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	TRICHOPLUSIA NI

Entity 8 Entity 8 polymer

Description description	COP9 SIGNALOSOME COMPLEX SUBUNIT 8
Molecular weight formula_weight	23573.9 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	H,P

GGGRMPVAVMAESAFSFKKLLDQCENQELEAPGGIATPPVYGQLLALYLLHNDMNNARYLWKRIPPAIKSANSELGGIWSVGQRIWQRDFPGIYTTINAHQWSETVQPIMEALRDATRRRAFALVSQAYTSIIADDFAAFVGLPVEEAVKGILEQGWQADSTTRMVLPRKPVAGALDVSFNKFIPLSEPAPVPPIPNEQQLARLTDYVAFLEN

Source Source

Source organism organism	HOMO SAPIENS
Common name common_name	HUMAN
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	TRICHOPLUSIA NI

Entity 9 Entity 9 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	2

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Unit-cell length a length_a	147.680 Å
Unit-cell length b length_b	147.680 Å
Unit-cell length c length_c	317.850 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	6

Space group space_group	P 31
Space-group number int_tables_number	144
Crystal system crystal_system	—

Resolution resolution	4.080 Å
Low-resolution limit resolution_low	52.980 Å
R factor r_factor	0.2370
R_work r_work	0.2362
R_free r_free	0.2534

Crystal structure of the COP9 signalosome

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

COP9 SIGNALOSOME COMPLEX SUBUNIT 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

COP9 SIGNALOSOME COMPLEX SUBUNIT 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

COP9 SIGNALOSOME COMPLEX SUBUNIT 3

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

COP9 SIGNALOSOME COMPLEX SUBUNIT 4

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

COP9 SIGNALOSOME COMPLEX SUBUNIT 5

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

COP9 SIGNALOSOME COMPLEX SUBUNIT 6

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

COP9 SIGNALOSOME COMPLEX SUBUNIT 7A

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

COP9 SIGNALOSOME COMPLEX SUBUNIT 8

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

4d18__assembly_1__model_1

4d18__assembly_1__model_1 | I(q)

4d18__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (9)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source