3EGX

Crystal structure of the mammalian COPII-coat protein Sec23a/24a complexed with the SNARE protein Sec22b and bound to the transport signal sequence of the SNARE protein Bet1


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
CSCOP2B SuperfamilySNARE-like8061915 3001113 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APF08033e3egxA14 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Common fold of diphtheria toxin/transcription factors/cytochrome fF: PF08033ECOD (1.6)
APF04815e3egxA12 A: alpha arraysX: ERP29 C domain-likeH: Helical domain of Sec23/24 (From Topology)T: Helical domain of Sec23/24F: PF04815ECOD (1.6)
APF00626e3egxA13 A: a+b three layersX: Gelsolin-like (From Topology)H: Gelsolin-like (From Topology)T: Gelsolin-likeF: PF00626ECOD (1.6)
APF04811e3egxA11 A: a/b three-layered sandwichesX: HAD domain-likeH: HAD domain-relatedT: vWA-likeF: PF04811ECOD (1.6)
APF04810e3egxA15 A: few secondary structure elementsX: Rubredoxin-likeH: Rubredoxin-relatedT: Rubredoxin-relatedF: PF04810ECOD (1.6)
BPF08033e3egxB3 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Common fold of diphtheria toxin/transcription factors/cytochrome fF: PF08033ECOD (1.6)
BPF04815e3egxB4 A: alpha arraysX: ERP29 C domain-likeH: Helical domain of Sec23/24 (From Topology)T: Helical domain of Sec23/24F: PF04815ECOD (1.6)
BPF00626e3egxB1 A: a+b three layersX: Gelsolin-like (From Topology)H: Gelsolin-like (From Topology)T: Gelsolin-likeF: PF00626ECOD (1.6)
BPF04811e3egxB2 A: a/b three-layered sandwichesX: HAD domain-likeH: HAD domain-relatedT: vWA-likeF: PF04811ECOD (1.6)
BPF04810e3egxB5 A: few secondary structure elementsX: Rubredoxin-likeH: Rubredoxin-relatedT: Rubredoxin-relatedF: PF04810ECOD (1.6)
CPF13774e3egxC1 A: a+b three layersX: Profilin-likeH: profilin-like (From Topology)T: profilin-likeF: PF13774ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF04815Sec23/Sec24 helical domain (Sec23_helical)Sec23/Sec24 helical domainCOPII-coated vesicles carry proteins from the endoplasmic reticulum to the Golgi complex. This vesicular transport can be reconstituted by using three cytosolic components containing five proteins: the small GTPase Sar1p, the Sec23p/24p complex, and ...COPII-coated vesicles carry proteins from the endoplasmic reticulum to the Golgi complex. This vesicular transport can be reconstituted by using three cytosolic components containing five proteins: the small GTPase Sar1p, the Sec23p/24p complex, and the Sec13p/Sec31p complex. This domain is composed of five alpha helices.
Domain
PF00626Gelsolin repeat (Gelsolin)Gelsolin repeat- Domain
PF08033Sec23/Sec24 beta-sandwich domain (Sec23_BS)Sec23/Sec24 beta-sandwich domain- Domain
PF04811Sec23/Sec24 trunk domain (Sec23_trunk)Sec23/Sec24 trunk domainCOPII-coated vesicles carry proteins from the endoplasmic reticulum to the Golgi complex. This vesicular transport can be reconstituted by using three cytosolic components containing five proteins: the small GTPase Sar1p, the Sec23p/24p complex, and ...COPII-coated vesicles carry proteins from the endoplasmic reticulum to the Golgi complex. This vesicular transport can be reconstituted by using three cytosolic components containing five proteins: the small GTPase Sar1p, the Sec23p/24p complex, and the Sec13p/Sec31p complex. This domain is known as the trunk domain and has an alpha/beta vWA fold and forms the dimer interface.
Domain
PF04810Sec23/Sec24 zinc finger (zf-Sec23_Sec24)Sec23/Sec24 zinc fingerCOPII-coated vesicles carry proteins from the endoplasmic reticulum to the Golgi complex. This vesicular transport can be reconstituted by using three cytosolic components containing five proteins: the small GTPase Sar1p, the Sec23p/24p complex, and ...COPII-coated vesicles carry proteins from the endoplasmic reticulum to the Golgi complex. This vesicular transport can be reconstituted by using three cytosolic components containing five proteins: the small GTPase Sar1p, the Sec23p/24p complex, and the Sec13p/Sec31p complex. This domain is found to be zinc binding domain.
Domain
PF04815Sec23/Sec24 helical domain (Sec23_helical)Sec23/Sec24 helical domainCOPII-coated vesicles carry proteins from the endoplasmic reticulum to the Golgi complex. This vesicular transport can be reconstituted by using three cytosolic components containing five proteins: the small GTPase Sar1p, the Sec23p/24p complex, and ...COPII-coated vesicles carry proteins from the endoplasmic reticulum to the Golgi complex. This vesicular transport can be reconstituted by using three cytosolic components containing five proteins: the small GTPase Sar1p, the Sec23p/24p complex, and the Sec13p/Sec31p complex. This domain is composed of five alpha helices.
Domain
PF00626Gelsolin repeat (Gelsolin)Gelsolin repeat- Domain
PF08033Sec23/Sec24 beta-sandwich domain (Sec23_BS)Sec23/Sec24 beta-sandwich domain- Domain
PF04811Sec23/Sec24 trunk domain (Sec23_trunk)Sec23/Sec24 trunk domainCOPII-coated vesicles carry proteins from the endoplasmic reticulum to the Golgi complex. This vesicular transport can be reconstituted by using three cytosolic components containing five proteins: the small GTPase Sar1p, the Sec23p/24p complex, and ...COPII-coated vesicles carry proteins from the endoplasmic reticulum to the Golgi complex. This vesicular transport can be reconstituted by using three cytosolic components containing five proteins: the small GTPase Sar1p, the Sec23p/24p complex, and the Sec13p/Sec31p complex. This domain is known as the trunk domain and has an alpha/beta vWA fold and forms the dimer interface.
Domain
PF13774Regulated-SNARE-like domain (Longin)Regulated-SNARE-like domainLongin is one of the approximately 26 components required for transporting proteins from the ER to the plasma membrane, via the Golgi apparatus. It is necessary for the steps of the transfer from the ER to the Golgi complex [1]. Longins are the only ...Longin is one of the approximately 26 components required for transporting proteins from the ER to the plasma membrane, via the Golgi apparatus. It is necessary for the steps of the transfer from the ER to the Golgi complex [1]. Longins are the only R-SNAREs that are common to all eukaryotes, and they are characterised by a conserved N-terminal domain with a profilin-like fold called a longin domain [2].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
9-residue synthetic peptide from SNARE protein Bet1
Protein transport protein Sec23A
Protein transport protein Sec24A
Vesicle-trafficking protein SEC22b

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR000727Target SNARE coiled-coil homology domainDomain
IPR039899BET1, SNARE domainDomain
IPR007123Gelsolin-like domainDomain
IPR029006ADF-H/Gelsolin-like domain superfamilyHomologous Superfamily
IPR036465von Willebrand factor A-like domain superfamilyHomologous Superfamily
IPR037550Sec23, C-terminalDomain
IPR006896Sec23/Sec24, trunk domainDomain
IPR036180Gelsolin-like domain superfamilyHomologous Superfamily
IPR037364Protein transport protein Sec23Family
IPR036175Sec23/Sec24 helical domain superfamilyHomologous Superfamily
IPR036174Zinc finger, Sec23/Sec24-type superfamilyHomologous Superfamily
IPR006900Sec23/Sec24, helical domainDomain
IPR006895Zinc finger, Sec23/Sec24-typeDomain
IPR012990Sec23/Sec24 beta-sandwichDomain
IPR007123Gelsolin-like domainDomain
IPR029006ADF-H/Gelsolin-like domain superfamilyHomologous Superfamily
IPR036465von Willebrand factor A-like domain superfamilyHomologous Superfamily
IPR006896Sec23/Sec24, trunk domainDomain
IPR036180Gelsolin-like domain superfamilyHomologous Superfamily
IPR036175Sec23/Sec24 helical domain superfamilyHomologous Superfamily
IPR006900Sec23/Sec24, helical domainDomain
IPR041742Sec24-like, trunk domainDomain
IPR006895Zinc finger, Sec23/Sec24-typeDomain
IPR012990Sec23/Sec24 beta-sandwichDomain
IPR044565Vesicle-trafficking protein Sec22Family
IPR011012Longin-like domain superfamilyHomologous Superfamily
IPR010908Longin domainDomain
IPR001388Synaptobrevin-likeFamily
IPR042855v-SNARE, coiled-coil homology domainDomain

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
PharosO15155
PharosQ15436
PharosO95486
PharosO75396