Protein: KI21B
Kinesin-like protein KIF21B

Gene: KI21B, KIF21B
Organism: Homo sapiens
Interactions: 56
UniProt ID: O75037

Gene Ontology (top 5):
GO:0003777 - microtubule motor activity
GO:0005524 - ATP binding
GO:0005737 - cytoplasm
GO:0005871 - kinesin complex
GO:0005874 - microtubule

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

269457

KI21A
Kinesin-like protein KIF21A

3

16

High-throughput

0.847

High

269446

TBB4B
Tubulin beta-4B chain

1

4

High-throughput

0.691

High

269429

PRP6
Pre-mRNA-processing factor 6

1

5

High-throughput

0.618

High

269448

CPSF1
Cleavage and polyadenylation specificity factor subunit 1

1

1

High-throughput

0.618

High

269451

TAF5
Transcription initiation factor TFIID subunit 5

1

4

High-throughput

0.618

High

269444

IF4A1
Eukaryotic initiation factor 4A-I

1

2

High-throughput

0.618

High

269436

1433T
14-3-3 protein theta

2

20

High-throughput

0.601

High

269438

1433B
14-3-3 protein beta/alpha

2

20

High-throughput

0.601

High

269445

1433G
14-3-3 protein gamma

2

20

High-throughput

0.601

High

269447

1433F
14-3-3 protein eta

2

20

High-throughput

0.601

High

269431

UBC
Polyubiquitin-C [Cleaved into: Ubiquitin]

2

1

High-throughput

0.595

High

269427

TRIM3
Tripartite motif-containing protein 3

1

10

Small-scale

0.552

High

269434

UBL4A
Ubiquitin-like protein 4A

1

3

High-throughput

0.536

High

269442

BAG6
Large proline-rich protein BAG6

1

2

High-throughput

0.536

High

269450

DYR1A
Dual specificity tyrosine-phosphorylation-regulated kinase 1A

1

5

High-throughput

0.536

High

269463

FUBP3
Far upstream element-binding protein 3

1

5

High-throughput

0.536

High

182062

PFD6
Prefoldin subunit 6

1

0

High-throughput

0.513

High

228122

CPSF5
Cleavage and polyadenylation specificity factor subunit 5

1

0

High-throughput

0.513

High

269453

P3H1
Prolyl 3-hydroxylase 1

1

0

High-throughput

0.513

High

269430

KITH
Thymidine kinase, cytosolic

1

1

High-throughput

0.508

High

178459

TBX3
T-box transcription factor TBX3

1

1

High-throughput

0.489

High

269435

USF1
Upstream stimulatory factor 1

1

7

High-throughput

0.489

High

269439

CSTF2
Cleavage stimulation factor subunit 2

1

1

High-throughput

0.489

High

269459

WDR75
WD repeat-containing protein 75

1

2

High-throughput

0.489

High

269469

MED4
Mediator of RNA polymerase II transcription subunit 4

1

4

High-throughput

0.489

High

269475

ZN281
Zinc finger protein 281

1

3

High-throughput

0.489

High

247554

NUPR1
Nuclear protein 1

1

2

High-throughput

0.479

High

269433

BIP
Endoplasmic reticulum chaperone BiP

1

6

High-throughput

0.479

High

269440

CAPG
Macrophage-capping protein

1

2

High-throughput

0.479

High

269468

GAN
Gigaxonin

1

1

High-throughput

0.479

High

269474

NUDC
Nuclear migration protein nudC

1

2

High-throughput

0.479

High

269428

CD123
Translation initiation factor eIF2 assembly protein

1

0

High-throughput

0.458

High

269467

BAG1
BAG family molecular chaperone regulator 1

1

0

High-throughput

0.458

High

269461

MIPT3
TRAF3-interacting protein 1

1

4

High-throughput

0.457

High

269466

CDC5L
Cell division cycle 5-like protein

1

4

High-throughput

0.457

High

269432

TAU
Microtubule-associated protein tau

1

9

High-throughput

0.445

High

269449

CUL3
Cullin-3

1

5

High-throughput

0.445

High

269464

DMRTB
Doublesex- and mab-3-related transcription factor B1

1

1

High-throughput

0.439

High

269465

QKI
KH domain-containing RNA-binding protein QKI

1

1

High-throughput

0.439

High

269443

BAP31
B-cell receptor-associated protein 31

1

1

High-throughput

0.437

High

269455

TMTC3
Protein O-mannosyl-transferase TMTC3

1

5

High-throughput

0.437

High

254668

HCN1
Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1

1

0

High-throughput

0.426

High

76411

B4DU58
Macrophage-capping protein

1

2

High-throughput

0.407

High

269456

CR3L2
Cyclic AMP-responsive element-binding protein 3-like protein 2

1

6

High-throughput

0.407

High

269454

PMF1
Polyamine-modulated factor 1

2

0

High-throughput

0.318

High

269462

NTAQ1
Protein N-terminal glutamine amidohydrolase

2

0

High-throughput

0.316

High

250367

HNRPQ
Heterogeneous nuclear ribonucleoprotein Q

1

0

High-throughput

0.279

Low

269437

CO4A5

1

0

High-throughput

0.279

Low

269441

BTD
Biotinidase

1

0

High-throughput

0.279

Low

269452

TAF12
Transcription initiation factor TFIID subunit 12

1

0

High-throughput

0.279

Low

269458

TCAM1
TIR domain-containing adapter molecule 1

1

0

High-throughput

0.279

Low

269470

DPOE3
DNA polymerase epsilon subunit 3

1

0

High-throughput

0.279

Low

269471

HAUS2
HAUS augmin-like complex subunit 2

1

0

High-throughput

0.279

Low

269472

TM248
Transmembrane protein 248

1

0

High-throughput

0.279

Low

269473

CPSF3
Cleavage and polyadenylation specificity factor subunit 3

1

0

High-throughput

0.279

Low

269460

FBX22
F-box only protein 22

1

0

High-throughput

0.249

Low


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Last updated: 11Aug2025