UniProt:Q8TD19 NEK9

chain
  • initiator methionine:1
  • chain:2-979
checksum 8583FDDE599324A2
comment
  • FUNCTION Pleiotropic regulator of mitotic progression, participating in the control of spindle dynamics and chromosome separation (PubMed:12101123, PubMed:12840024, PubMed:14660563, PubMed:19941817). Phosphorylates different histones, myelin basic protein, beta-casein, and BICD2 (PubMed:11864968). Phosphorylates histone H3 on serine and threonine residues and beta-casein on serine residues (PubMed:11864968). Important for G1/S transition and S phase progression (PubMed:12840024, PubMed:14660563, PubMed:19941817). Phosphorylates NEK6 and NEK7 and stimulates their activity by releasing the autoinhibitory functions of Tyr-108 and Tyr-97 respectively (PubMed:12840024, PubMed:14660563, PubMed:19941817, PubMed:26522158).CATALYTIC ACTIVITY L-seryl-[protein] + ATP = O-phospho-L-seryl-[protein] + ADP + H(+)CATALYTIC ACTIVITY L-threonyl-[protein] + ATP = O-phospho-L-threonyl-[protein] + ADP + H(+)COFACTOR Activated during mitosis by intramolecular autophosphorylation (PubMed:11864968). Activity and autophosphorylation is activated by manganese >> magnesium ions (PubMed:11864968). Sensitive to increasing concentration of detergents (PubMed:11864968). It is not cell-cycle regulated but activity is higher in G0-arrested cells (PubMed:11864968).SUBUNIT Homodimer; homodimerization is required to activate NEK7 (PubMed:23482567, PubMed:26522158). Binds to Ran GTPase (PubMed:12101123). Has a greater affinity for Ran-GDP over Ran-GTP (PubMed:12101123). Interacts with SSRP1 and SUPT16H, the 2 subunits of the FACT complex (PubMed:14660563). Interacts with DYNLL1; phosphorylation at Ser-944 strongly reduces DYNLL1 binding (PubMed:23482567).INTERACTION Most abundant in heart, liver, kidney and testis. Also expressed in smooth muscle cells and fibroblasts.DEVELOPMENTAL STAGE Expression varied mildly across the cell cycle, with highest expression observed in G1 and stationary-phase cells.DOMAIN Dimerizes through its coiled-coil domain.PTM Autophosphorylated on serine and threonine residues (PubMed:27153399). When complexed with FACT, exhibits markedly elevated phosphorylation on Thr-210. During mitosis, not phosphorylated on Thr-210. Phosphorylated by CDK1 in vitro (PubMed:14660563).DISEASE The disease is caused by variants affecting the gene represented in this entry.DISEASE The disease is caused by variants affecting the gene represented in this entry.DISEASE The disease is caused by variants affecting the gene represented in this entry.SIMILARITY Belongs to the protein kinase superfamily. NEK Ser/Thr protein kinase family. NIMA subfamily.SEQUENCE CAUTION Extended N-terminus.
crossReference
databaseName UniProt
dbId 96139
description
  • recommendedName: fullName evidence="21"Serine/threonine-protein kinase Nek9 ecNumber evidence="5 7"2.7.11.38 alternativeName: fullName evidence="19"Nercc1 kinase alternativeName: fullName evidence="20"Never in mitosis A-related kinase 9 shortName evidence="20"NimA-related protein kinase 9 alternativeName: fullName evidence="18"NimA-related kinase 8 shortName evidence="18"Nek8
displayName UniProt:Q8TD19 NEK9
geneName
  • NEK9
  • KIAA1995
  • NEK8
  • NERCC
identifier Q8TD19
isSequenceChanged false
keyword
  • 3D-structure
  • Acetylation
  • ATP-binding
  • Cell cycle
  • Cell division
  • Coiled coil
  • Cytoplasm
  • Direct protein sequencing
  • Disease variant
  • Kinase
  • Magnesium
  • Metal-binding
  • Mitosis
  • Nucleotide-binding
  • Nucleus
  • Phosphoprotein
  • Proteomics identification
  • Reference proteome
  • Repeat
  • Serine/threonine-protein kinase
  • Transferase
modified [InstanceEdit:9983091] Weiser, Joel, 2026-02-20
moleculeType Protein
name
  • NEK9
otherIdentifier
  • 11736077_a_at
  • 11736078_a_at
  • 11736079_a_at
  • 16794898
  • 212299_PM_at
  • 212299_at
  • 214738_3p_s_at
  • 214738_PM_s_at
  • 214738_s_at
  • 3572143
  • 3572144
  • 3572279
  • 3572280
  • 3572281
  • 3572282
  • 3572283
  • 3572284
  • 3572285
  • 3572287
  • 3572288
  • 3572289
  • 3572291
  • 3572292
  • 3572293
  • 3572295
  • 3572296
  • 3572297
  • 3572298
  • 3572299
  • 3572300
  • 3572302
  • 3572303
  • 3572304
  • 3572305
  • 3572306
  • 3572307
  • 3572308
  • 3572309
  • 3572310
  • 3572312
  • 3572313
  • 3572314
  • 3572315
  • 3572316
  • 3572318
  • 3572320
  • 3572321
  • 3572322
  • 3572323
  • 3572337
  • 3572339
  • 35843_at
  • 60722_at
  • 7980271
  • 91754
  • A_23_P3131
  • A_24_P347480
  • GE501409
  • GE56489
  • GE890268
  • GE905911
  • GO:0000166
  • GO:0000278
  • GO:0003824
  • GO:0004672
  • GO:0004674
  • GO:0005515
  • GO:0005524
  • GO:0005634
  • GO:0005737
  • GO:0005813
  • GO:0005815
  • GO:0005829
  • GO:0006468
  • GO:0007346
  • GO:0016301
  • GO:0016740
  • GO:0019901
  • GO:0030295
  • GO:0046872
  • GO:0051301
  • GO:0098772
  • GO:0106310
  • GO:0140096
  • GO:1900227
  • HMNXSV003034185
  • Hs.306533.0.S1_3p_s_at
  • Hs.7200.0.A1_3p_at
  • ILMN_1847889
  • PH_hs_0000740
  • TC14001317.hg
physicalEntity
referenceDatabase [ReferenceDatabase:2] UniProt
referenceGene
referenceTranscript
schemaClass ReferenceGeneProduct
secondaryIdentifier
  • NEK9_HUMAN
  • Q52LK6
  • Q8NCN0
  • Q8TCY4
  • Q9UPI4
  • Q9Y6S4
  • Q9Y6S5
  • Q9Y6S6
sequenceLength 979
species [Species:48887] Homo sapiens
stId uniprot:Q8TD19
url http://purl.uniprot.org/uniprot/Q8TD19
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