NKTR

gene
On this page

Also known as p104CypNK

Summary

NKTR (natural killer cell triggering receptor, HGNC:7833) is a protein-coding gene on chromosome 3p22.1, encoding NK-tumor recognition protein (P30414). PPIase that catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides and may therefore assist protein folding.

This gene encodes a membrane-anchored protein with a hydrophobic amino terminal domain and a cyclophilin-like PPIase domain. It is present on the surface of natural killer cells and facilitates their binding to targets. Its expression is regulated by IL2 activation of the cells.

Source: NCBI Gene 4820 — RefSeq curated summary.

At a glance

  • Clinical variants (ClinVar): 173 total
  • Cancer driver (intOGen): activating (oncogene-like) across 1 cancer types
  • MANE Select transcript: NM_005385

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:7833
Approved symbolNKTR
Namenatural killer cell triggering receptor
Location3p22.1
Locus typegene with protein product
StatusApproved
Aliasesp104, CypNK
Ensembl geneENSG00000114857
Ensembl biotypeprotein_coding
OMIM161565
Entrez4820

Gene structure

Transcript identifiers

Ensembl transcripts: 26 — 13 retained_intron, 11 protein_coding, 1 nonsense_mediated_decay, 1 protein_coding_CDS_not_defined

ENST00000232978, ENST00000429888, ENST00000442970, ENST00000445842, ENST00000459950, ENST00000460807, ENST00000460910, ENST00000464315, ENST00000465584, ENST00000466553, ENST00000468735, ENST00000472127, ENST00000472258, ENST00000478488, ENST00000487466, ENST00000490189, ENST00000498730, ENST00000508351, ENST00000937553, ENST00000937554, ENST00000937555, ENST00000937556, ENST00000937557, ENST00000970640, ENST00000970641, ENST00000970642

RefSeq mRNA: 4 — MANE Select: NM_005385 NM_001349124, NM_001349125, NM_001349126, NM_005385

CCDS: CCDS2702

Canonical transcript exons

ENST00000232978 — 17 exons

ExonStartEnd
ENSE000034630774262142942621516
ENSE000034676794263461342634700
ENSE000034694324263260142632823
ENSE000034815754264390242644003
ENSE000034831014263686842639750
ENSE000034906444261966442619708
ENSE000034969634260098442601064
ENSE000035161164263358042633735
ENSE000035269344264333942643395
ENSE000035327874263117142631316
ENSE000035751414264588842648735
ENSE000035801724264250142642596
ENSE000036138094261902042619127
ENSE000036221594263522142635366
ENSE000036393474261757042617644
ENSE000036416234263054642630575
ENSE000037404294260068642600778

Expression profiles

Bgee: expression breadth ubiquitous, 298 present calls, max score 98.58.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 26.3666 / max 320.8463, expressed in 1810 samples.

FANTOM5 promoters (4 alternative TSS)

Promoter IDTPM avgSamples expressed
3626221.16141793
362642.96881328
362631.9966910
362680.239779

Top tissues by expression

301 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
pylorusUBERON:000116698.58gold quality
cardia of stomachUBERON:000116298.46gold quality
caput epididymisUBERON:000435898.36gold quality
cauda epididymisUBERON:000436098.33gold quality
cranial nerve IIUBERON:000094198.23gold quality
calcaneal tendonUBERON:000370198.05gold quality
corpus epididymisUBERON:000435997.91gold quality
superior surface of tongueUBERON:000737197.88gold quality
visceral pleuraUBERON:000240197.83gold quality
corpus callosumUBERON:000233697.77gold quality
superficial temporal arteryUBERON:000161497.75gold quality
sural nerveUBERON:001548897.72gold quality
lateral globus pallidusUBERON:000247697.68gold quality
urethraUBERON:000005797.67gold quality
renal medullaUBERON:000036297.58gold quality
right uterine tubeUBERON:000130297.41gold quality
secondary oocyteCL:000065597.40gold quality
substantia nigra pars reticulataUBERON:000196697.37gold quality
trabecular bone tissueUBERON:000248397.31gold quality
trigeminal ganglionUBERON:000167597.29gold quality
inferior olivary complexUBERON:000212797.29gold quality
left ovaryUBERON:000211997.28gold quality
pericardiumUBERON:000240797.27gold quality
mucosa of stomachUBERON:000119997.25gold quality
tendonUBERON:000004397.24gold quality
buccal mucosa cellCL:000233697.23gold quality
nerveUBERON:000102197.22gold quality
tibial nerveUBERON:000132397.22gold quality
inferior vagus X ganglionUBERON:000536397.21gold quality
right ovaryUBERON:000211897.20gold quality

Single-cell (SCXA)

Detected in 3 experiment(s), a significant marker in 3.

ExperimentMarker?Max mean expression
E-CURD-122yes21.26
E-MTAB-8410yes9.20
E-ANND-3no0.00

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

157 targeting NKTR, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-8485100.0077.574731
HSA-LET-7A-3P100.0074.033932
HSA-LET-7B-3P100.0074.083913
HSA-LET-7F-1-3P100.0074.023928
HSA-MIR-98-3P100.0074.083907
HSA-MIR-1277-5P100.0073.955056
HSA-MIR-3646100.0073.565283
HSA-MIR-29A-3P100.0073.111835
HSA-MIR-29B-3P100.0073.181833
HSA-MIR-29C-3P100.0073.151833
HSA-MIR-30A-5P100.0076.313233
HSA-MIR-30B-5P100.0076.293248
HSA-MIR-30C-5P100.0076.293248
HSA-MIR-30D-5P100.0076.323233
HSA-MIR-30E-5P100.0076.323242
HSA-MIR-190A-3P100.0080.355520
HSA-MIR-5011-5P100.0083.465820
HSA-MIR-4692100.0067.322066
HSA-MIR-453199.9969.703181
HSA-MIR-366299.9973.825684
HSA-MIR-10401-5P99.9965.79948
HSA-MIR-548C-3P99.9974.017587
HSA-MIR-34A-5P99.9971.211784
HSA-MIR-449A99.9971.051776
HSA-MIR-103A-3P99.9869.141595
HSA-MIR-10799.9869.141595
HSA-LET-7F-2-3P99.9870.982588
HSA-MIR-1185-1-3P99.9871.042593
HSA-MIR-1185-2-3P99.9871.042593
HSA-MIR-520D-5P99.9873.344883

Cross-species orthologs

5 orthologs

OrganismSymbolGene ID
danio_rerionktrENSDARG00000059097
mus_musculusNktrENSMUSG00000032525
rattus_norvegicusNktrENSRNOG00000049128
drosophila_melanogasterCyp40FBGN0036020
caenorhabditis_elegansWBGENE00000885

Paralogs (22): PPIE (ENSG00000084072), PPIL2 (ENSG00000100023), PPIF (ENSG00000108179), PPWD1 (ENSG00000113593), PPIL4 (ENSG00000131013), PPIL1 (ENSG00000137168), PPIG (ENSG00000138398), CWC27 (ENSG00000153015), PPIB (ENSG00000166794), PPIC (ENSG00000168938), PPID (ENSG00000171497), PPIH (ENSG00000171960), PPIL6 (ENSG00000185250), PPIA (ENSG00000196262), PPIAL4G (ENSG00000236334), PPIL3 (ENSG00000240344), PPIAL4A (ENSG00000263353), PPIAL4H (ENSG00000270339), PPIAL4E (ENSG00000271567), PPIAL4F (ENSG00000279782), PPIAL4C (ENSG00000288867), PPIAL4D (ENSG00000289549)

Protein

Protein identifiers

NK-tumor recognition proteinP30414 (reviewed: P30414)

Alternative names: Natural-killer cells cyclophilin-related protein, Peptidyl-prolyl cis-trans isomerase NKTR, Rotamase

All UniProt accessions (3): P30414, A8K7K2, C9JMM5

UniProt curated annotations — full annotation on UniProt →

Function. PPIase that catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides and may therefore assist protein folding. Component of a putative tumor-recognition complex involved in the function of NK cells.

Subcellular location. Cell membrane.

Activity regulation. Inhibited by cyclosporin A (CsA).

RefSeq proteins (4): NP_001336053, NP_001336054, NP_001336055, NP_005376* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR002130Cyclophilin-type_PPIase_domDomain
IPR020892Cyclophilin-type_PPIase_CSConserved_site
IPR029000Cyclophilin-like_dom_sfHomologous_superfamily

Pfam: PF00160

Catalyzed reactions (Rhea), 1 shown:

  • [protein]-peptidylproline (omega=180) = [protein]-peptidylproline (omega=0) (RHEA:16237)

UniProt features (89 total): compositionally biased region 28, modified residue 16, cross-link 13, strand 11, region of interest 7, turn 5, sequence variant 4, helix 3, chain 1, domain 1

Structure

Experimental structures (PDB)

1 structures.

PDBMethodResolution (Å)
2HE9X-RAY DIFFRACTION2

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-P30414-F143.870.11

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Post-translational modifications (29): 379, 401, 416, 463, 471, 613, 648, 866, 887, 889, 891, 907, 1077, 1146, 1155, 1203, 323, 578, 581, 639 …

Function

Pathways and Gene Ontology

Reactome pathways

0 pathways

MSigDB gene sets: 183 (showing top): TGGTGCT_MIR29A_MIR29B_MIR29C, AMIT_EGF_RESPONSE_60_HELA, GAUSSMANN_MLL_AF4_FUSION_TARGETS_C_UP, BROWNE_HCMV_INFECTION_48HR_DN, GOBP_PROTEIN_MATURATION, DEURIG_T_CELL_PROLYMPHOCYTIC_LEUKEMIA_DN, BLALOCK_ALZHEIMERS_DISEASE_UP, MODULE_206, RUTELLA_RESPONSE_TO_HGF_VS_CSF2RB_AND_IL4_DN, chr3p22, GOBP_PROTEIN_FOLDING, LASTOWSKA_NEUROBLASTOMA_COPY_NUMBER_DN, BASAKI_YBX1_TARGETS_DN, SCHLOSSER_SERUM_RESPONSE_AUGMENTED_BY_MYC, CHANDRAN_METASTASIS_UP

GO Biological Process (2): protein folding (GO:0006457), protein peptidyl-prolyl isomerization (GO:0000413)

GO Molecular Function (3): peptidyl-prolyl cis-trans isomerase activity (GO:0003755), cyclosporin A binding (GO:0016018), isomerase activity (GO:0016853)

GO Cellular Component (4): nucleus (GO:0005634), cytoplasm (GO:0005737), plasma membrane (GO:0005886), membrane (GO:0016020)

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular anatomical structure2
cellular process1
protein maturation1
peptidyl-proline modification1
cis-trans isomerase activity1
catalytic activity, acting on a protein1
binding1
catalytic activity1
intracellular membrane-bounded organelle1
intracellular anatomical structure1
membrane1
cell periphery1

Protein interactions and networks

STRING

3084 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
NKTRCLK1P49759762
NKTRIL2RBP14784735
NKTRPIN4Q9Y237667
NKTRNOLC1Q14978600
NKTRGRB2P29354578
NKTRSRSF2Q01130548
NKTRMAPRE1Q15691540
NKTRMAPK9P45984539
NKTRIL2P01585520
NKTRZNF398Q8TD17511
NKTRPOLR2AP24928492
NKTRCCDC73Q6ZRK6433
NKTRCD8AP01732431
NKTRPLCG1P19174417
NKTRCTLA4P16410411

IntAct

108 interactions, top by confidence:

ABTypeScore
CSNK2A1EIF3Jpsi-mi:“MI:0914”(association)0.810
PRPF19AQRpsi-mi:“MI:0914”(association)0.790
SNRPD2GEMIN2psi-mi:“MI:0914”(association)0.710
CSNK2BRPS6KA5psi-mi:“MI:0914”(association)0.660
PNNCASC3psi-mi:“MI:0914”(association)0.640
DHX38DHX16psi-mi:“MI:0914”(association)0.630
YWHAHPLEKHG3psi-mi:“MI:0914”(association)0.610
ZNF707ZNF316psi-mi:“MI:0914”(association)0.530
SNIP1CASC3psi-mi:“MI:0914”(association)0.530
ZC3H18AQRpsi-mi:“MI:0914”(association)0.530
ZNF816LRP4psi-mi:“MI:0914”(association)0.530
ZNF311CENPBpsi-mi:“MI:0914”(association)0.530
MECP2GTPBP10psi-mi:“MI:0914”(association)0.530
MAGEB2POLRMTpsi-mi:“MI:0914”(association)0.530
SRPK2RRP9psi-mi:“MI:0914”(association)0.530
WSB2UBBpsi-mi:“MI:0914”(association)0.530
ZNF786NKTRpsi-mi:“MI:0914”(association)0.530
ZNF263AHCYL1psi-mi:“MI:0914”(association)0.530
RPL13RRP8psi-mi:“MI:0914”(association)0.530
CPSF6DDX39Apsi-mi:“MI:0914”(association)0.480
NKTRRSL1D1psi-mi:“MI:0915”(physical association)0.400
Spred2TARS3psi-mi:“MI:0914”(association)0.350
Ccdc9ACIN1psi-mi:“MI:0914”(association)0.350
ARRB2psi-mi:“MI:0914”(association)0.350

BioGRID (137): NKTR (Affinity Capture-MS), NKTR (Affinity Capture-MS), NKTR (Affinity Capture-MS), NKTR (Affinity Capture-MS), NKTR (Affinity Capture-MS), NKTR (Proximity Label-MS), NKTR (Affinity Capture-MS), NKTR (Affinity Capture-MS), NKTR (Affinity Capture-MS), NKTR (Affinity Capture-MS), NKTR (Affinity Capture-MS), NKTR (Affinity Capture-MS), NKTR (Affinity Capture-MS), NKTR (Affinity Capture-MS), NKTR (Affinity Capture-MS)

ESM2 similar proteins: A0A1I8MUL8, A2AG58, A2AJT9, A6ZWC8, B3LKV0, B5VT41, B9UYK6, C1IWT1, C5IY45, C7GJ78, C8ZIQ5, E7KIY3, E7KVI3, E7M1C7, E7QAA9, E7QLB7, O14269, O23372, O94687, P0CO26, P0CO27, P11596, P30414, P30415, P33419, P97868, Q03063, Q08D57, Q18221, Q1LY77, Q23935, Q24669, Q3UC65, Q3YPH5, Q4R626, Q5LJZ2, Q5R840, Q5RAA7, Q5U2S0, Q66J90

Diamond homologs: A0A0R0H9T5, A2AR02, A8X8D0, D4AY02, O49886, O55035, O74729, O93826, O94273, P0C1H7, P0C1H9, P0C1I1, P0C1I2, P0C1I3, P0C1I7, P0C1I8, P0C1I9, P0CP82, P0CP83, P14088, P14832, P18253, P21568, P21569, P23284, P24367, P24368, P24369, P24525, P25007, P25719, P26882, P30414, P30415, P34790, P34791, P34887, P35627, P52009, P52010

SIGNOR signaling

0 interactions.

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 135 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.

Reactome pathways:

PathwayPartnersFoldFDR
mRNA 3’-end processing1019.5×7e-09
Transport of Mature Transcript to Cytoplasm518.8×2e-04
mRNA Splicing1617.4×2e-13
RNA Polymerase II Transcription Termination817.4×1e-06
mRNA Splicing - Minor Pathway715.5×1e-05
Transport of Mature mRNA derived from an Intron-Containing Transcript1015.1×7e-08
Processing of Capped Intron-Containing Pre-mRNA1713.8×7e-13
mRNA Splicing - Major Pathway2513.5×5e-19

GO biological processes:

GO termPartnersFoldFDR
negative regulation of mRNA splicing, via spliceosome850.2×4e-10
spliceosomal complex assembly734.5×2e-07
RNA splicing, via transesterification reactions525.6×1e-04
U2-type prespliceosome assembly525.6×1e-04
spliceosomal snRNP assembly523.8×2e-04
mRNA splicing, via spliceosome1914.3×5e-14
cytoplasmic translation913.7×3e-06
RNA splicing1611.6×2e-10

Disease & clinical

Cancer significance

From intOGen — cancer-driver classification: activating (oncogene-like) across 1 cancer types — AML.

Clinical variants and AI predictions

ClinVar

173 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance155
Likely benign4
Benign0

Top pathogenic / likely-pathogenic (0)

SpliceAI

3305 predictions. Top by Δscore:

VariantEffectΔscore
3:42601060:GCCGG:Gdonor_gain1.0000
3:42617568:A:AGacceptor_gain1.0000
3:42617568:AGTT:Aacceptor_gain1.0000
3:42617569:G:GAacceptor_gain1.0000
3:42617569:GTT:Gacceptor_gain1.0000
3:42617569:GTTG:Gacceptor_gain1.0000
3:42619055:T:Gdonor_gain1.0000
3:42620521:T:TAacceptor_gain1.0000
3:42620522:G:Aacceptor_gain1.0000
3:42621517:G:GGdonor_gain1.0000
3:42630073:G:GGdonor_gain1.0000
3:42630454:T:TAacceptor_gain1.0000
3:42630465:T:Gacceptor_gain1.0000
3:42631169:AG:Aacceptor_gain1.0000
3:42631170:GG:Gacceptor_gain1.0000
3:42631312:AGATG:Adonor_gain1.0000
3:42631313:GATG:Gdonor_gain1.0000
3:42631313:GATGG:Gdonor_gain1.0000
3:42631315:TGGT:Tdonor_loss1.0000
3:42631318:TAA:Tdonor_loss1.0000
3:42632596:A:AGacceptor_gain1.0000
3:42632599:A:Gacceptor_gain1.0000
3:42632600:G:GAacceptor_gain1.0000
3:42632771:G:GTdonor_gain1.0000
3:42632797:GAA:Gdonor_gain1.0000
3:42632820:AAGGG:Adonor_loss1.0000
3:42632821:AGGG:Adonor_loss1.0000
3:42632822:GG:Gdonor_gain1.0000
3:42632822:GGGTA:Gdonor_loss1.0000
3:42632823:GG:Gdonor_gain1.0000

AlphaMissense

9614 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
3:42617585:T:CF25S1.000
3:42617591:T:CL27P1.000
3:42617605:T:CC32R1.000
3:42617606:G:AC32Y1.000
3:42617607:T:GC32W1.000
3:42617619:C:GC36W1.000
3:42617625:C:AN38K1.000
3:42617625:C:GN38K1.000
3:42617626:T:CF39L1.000
3:42617627:T:CF39S1.000
3:42617628:C:AF39L1.000
3:42617628:C:GF39L1.000
3:42617636:T:CL42S1.000
3:42617638:T:CC43R1.000
3:42617639:G:AC43Y1.000
3:42617640:C:GC43W1.000
3:42619056:T:CL57S1.000
3:42619077:T:CF64S1.000
3:42619079:C:GH65D1.000
3:42619082:C:AR66S1.000
3:42619083:G:CR66P1.000
3:42619097:T:CF71L1.000
3:42619098:T:CF71S1.000
3:42619099:T:AF71L1.000
3:42619099:T:GF71L1.000
3:42619109:G:CG75R1.000
3:42619112:G:AG76R1.000
3:42619112:G:CG76R1.000
3:42619112:G:TG76W1.000
3:42619113:G:AG76E1.000

dbSNP variants (sampled 300 via entrez): RS1000096676 (3:42635362 G>T), RS1000222763 (3:42649071 C>T), RS1000294934 (3:42617421 C>A,T), RS1000315928 (3:42608563 G>A), RS1000346802 (3:42617851 T>A), RS1000389281 (3:42600621 C>A), RS1000394085 (3:42628253 T>C), RS1000408730 (3:42639791 C>G), RS1000463444 (3:42648808 C>T), RS1000496822 (3:42601449 T>C), RS1000561597 (3:42647604 C>T), RS1000604012 (3:42640344 C>T), RS1000616995 (3:42610804 A>C), RS1000646084 (3:42625426 TG>T,TGG), RS1000773441 (3:42600951 T>A,C)

Disease associations

OMIM: gene MIM:161565 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

0 associations (top):

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

44 total (human), top 30 by PubMed support.

ChemicalActions (top 5)PubMed papers
Valproic Acidaffects cotreatment, decreases expression, decreases methylation4
bisphenol Aincreases expression, affects cotreatment, decreases expression2
sodium arseniteincreases expression2
aristolochic acid Idecreases expression1
FR900359increases phosphorylation1
TAK-243decreases sumoylation1
geldanamycinincreases expression1
testosterone enanthateaffects expression1
methylmercuric chloridedecreases expression1
triphenyl phosphateaffects expression1
beta-lapachonedecreases expression1
coumarinaffects phosphorylation1
di-n-butylphosphoric acidaffects expression1
perfluorooctane sulfonic aciddecreases expression1
4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamideaffects cotreatment, decreases expression1
ICG 001increases expression1
2-methyl-2H-pyrazole-3-carboxylic acid (2-methyl-4-o-tolylazophenyl)amideincreases expression1
dorsomorphinaffects cotreatment, decreases expression1
bisphenol Saffects cotreatment, decreases expression1
Resveratrolincreases expression, affects cotreatment1
Arsenic Trioxidedecreases expression1
Vorinostatdecreases expression1
Acetaminophenincreases expression1
Arsenicaffects methylation1
Caffeineaffects phosphorylation1
Cisplatindecreases expression1
Dexamethasoneaffects cotreatment, decreases expression1
Indomethacindecreases expression, affects cotreatment1
Methyl Methanesulfonateincreases expression1
Plant Extractsaffects cotreatment, increases expression1

Clinical trials (associated diseases)

0 trials via MONDO — disease-level, not drug-specific.

No linked Atlas pages yet — the cross-entity mesh grows as the corpus expands.