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- PDB-9l6q: Vitamin K-dependent gamma-carboxylase in complex with Coagulation... -

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Basic information

Entry
Database: PDB / ID: 9l6q
TitleVitamin K-dependent gamma-carboxylase in complex with Coagulation factor IX and vitamin K
Components
  • Coagulation factor IX
  • Vitamin K-dependent gamma-carboxylase
KeywordsMEMBRANE PROTEIN / complex
Function / homology
Function and homology information


peptidyl-glutamate 4-carboxylase / gamma-glutamyl carboxylase activity / negative regulation of testosterone biosynthetic process / negative regulation of bone development / Defective F9 secretion / coagulation factor IXa / Defective gamma-carboxylation of F9 / vitamin binding / vitamin K metabolic process / negative regulation of neurotransmitter secretion ...peptidyl-glutamate 4-carboxylase / gamma-glutamyl carboxylase activity / negative regulation of testosterone biosynthetic process / negative regulation of bone development / Defective F9 secretion / coagulation factor IXa / Defective gamma-carboxylation of F9 / vitamin binding / vitamin K metabolic process / negative regulation of neurotransmitter secretion / Defective F9 activation / Defective factor IX causes thrombophilia / Defective cofactor function of FVIIIa variant / Defective F9 variant does not activate FX / zymogen activation / Extrinsic Pathway of Fibrin Clot Formation / Protein hydroxylation / Transport of gamma-carboxylated protein precursors from the endoplasmic reticulum to the Golgi apparatus / Gamma-carboxylation of protein precursors / Removal of aminoterminal propeptides from gamma-carboxylated proteins / Intrinsic Pathway of Fibrin Clot Formation / protein maturation / protein modification process / Golgi lumen / blood coagulation / : / endopeptidase activity / endoplasmic reticulum lumen / serine-type endopeptidase activity / calcium ion binding / endoplasmic reticulum membrane / proteolysis / extracellular space / extracellular exosome / extracellular region / metal ion binding / membrane / plasma membrane
Similarity search - Function
Vitamin K-dependent gamma-carboxylase / HTTM / : / : / HTTM domain / Vitamin K-dependent gamma-carboxylase, lumenal domain / Horizontally Transferred TransMembrane Domain / Peptidase S1A, coagulation factor VII/IX/X/C/Z / : / Coagulation factor-like, Gla domain superfamily ...Vitamin K-dependent gamma-carboxylase / HTTM / : / : / HTTM domain / Vitamin K-dependent gamma-carboxylase, lumenal domain / Horizontally Transferred TransMembrane Domain / Peptidase S1A, coagulation factor VII/IX/X/C/Z / : / Coagulation factor-like, Gla domain superfamily / Coagulation Factor Xa inhibitory site / EGF-like domain / RmlC-like cupin domain superfamily / EGF-type aspartate/asparagine hydroxylation site / EGF-like calcium-binding, conserved site / Calcium-binding EGF-like domain signature. / Aspartic acid and asparagine hydroxylation site. / EGF-like calcium-binding domain / Calcium-binding EGF-like domain / Vitamin K-dependent carboxylation/gamma-carboxyglutamic (GLA) domain / Gamma-carboxyglutamic acid-rich (GLA) domain / Gamma-carboxyglutamic acid-rich (GLA) domain superfamily / Vitamin K-dependent carboxylation domain. / Gla domain profile. / Domain containing Gla (gamma-carboxyglutamate) residues. / Epidermal growth factor-like domain. / EGF-like domain profile. / EGF-like domain signature 1. / EGF-like domain signature 2. / EGF-like domain / RmlC-like jelly roll fold / Serine proteases, trypsin family, histidine active site / Serine proteases, trypsin family, serine active site / Serine proteases, trypsin family, histidine active site. / Peptidase S1A, chymotrypsin family / Serine proteases, trypsin family, serine active site. / Serine proteases, trypsin domain profile. / Trypsin-like serine protease / Serine proteases, trypsin domain / Trypsin / Peptidase S1, PA clan, chymotrypsin-like fold / Peptidase S1, PA clan
Similarity search - Domain/homology
Menaquinone-4 / Chem-6PL / CHOLESTEROL / Coagulation factor IX / Vitamin K-dependent gamma-carboxylase
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.78 Å
AuthorsHang, J. / Chen, D.D. / Zhong, Q.H.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32470880 China
CitationJournal: To Be Published
Title: double-mutant (K217A & K218A) Vitamin K-dependent gamma-carboxylase in complex with Coagulation factor IX peptide and vitamin K
Authors: Hang, J. / Chen, D.D. / Zhong, Q.H.
History
DepositionDec 25, 2024Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Oct 8, 2025Provider: repository / Type: Initial release
Revision 1.0Oct 8, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Oct 8, 2025Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Oct 8, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Oct 8, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Oct 8, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Oct 8, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Vitamin K-dependent gamma-carboxylase
C: Coagulation factor IX
hetero molecules


Theoretical massNumber of molelcules
Total (without water)143,2859
Polymers139,4922
Non-polymers3,7937
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 2 types, 2 molecules AC

#1: Protein Vitamin K-dependent gamma-carboxylase / Gamma-glutamyl carboxylase / Peptidyl-glutamate 4-carboxylase / Vitamin K gamma glutamyl carboxylase


Mass: 87655.641 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GGCX, GC / Production host: Homo sapiens (human)
References: UniProt: P38435, peptidyl-glutamate 4-carboxylase
#2: Protein Coagulation factor IX / Christmas factor / Plasma thromboplastin component / PTC


Mass: 51836.270 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: F9 / Production host: Homo sapiens (human) / References: UniProt: P00740, coagulation factor IXa

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Sugars , 2 types, 3 molecules

#3: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}LINUCSPDB-CARE
#4: Polysaccharide beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 586.542 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5]/1-1-2/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{}}}LINUCSPDB-CARE

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Non-polymers , 3 types, 4 molecules

#5: Chemical ChemComp-6PL / (4S,7R)-4-HYDROXY-N,N,N-TRIMETHYL-9-OXO-7-[(PALMITOYLOXY)METHYL]-3,5,8-TRIOXA-4-PHOSPHAHEXACOSAN-1-AMINIUM 4-OXIDE / 1-PALMITOYL-2-STEAROYL-SN-GLYCERO-3-PHOSPHOCHOLINE


Mass: 763.100 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C42H85NO8P / Feature type: SUBJECT OF INVESTIGATION / Comment: phospholipid*YM
#6: Chemical ChemComp-CLR / CHOLESTEROL


Mass: 386.654 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H46O / Feature type: SUBJECT OF INVESTIGATION
#7: Chemical ChemComp-1L3 / Menaquinone-4 / vitamin K2


Mass: 444.648 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C31H40O2 / Feature type: SUBJECT OF INVESTIGATION

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Details

Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: monomer Vitamin K-dependent gamma-carboxylase in complex with Coagulation factor IX and vitamin K
Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Tecnai F30 / Image courtesy: FEI Company
MicroscopyModel: FEI TECNAI F30
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 40 e/Å2 / Film or detector model: GATAN K3 BIOCONTINUUM (6k x 4k)

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Processing

EM softwareName: PHENIX / Version: 1.21.2_5419 / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.78 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 331914 / Symmetry type: POINT
RefinementHighest resolution: 2.78 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0036029
ELECTRON MICROSCOPYf_angle_d0.528199
ELECTRON MICROSCOPYf_dihedral_angle_d11.264899
ELECTRON MICROSCOPYf_chiral_restr0.04919
ELECTRON MICROSCOPYf_plane_restr0.0041000

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