Protein: SY121
Syntaxin-121 (AtSYP121) (Protein SYNTAXIN OF PLANTS 121) (Syntaxin-related protein At-Syr1)

Gene: SY121, SYP121
Organism: Arabidopsis thaliana
Interactions: 70
UniProt ID: Q9ZSD4

Gene Ontology (top 5):
GO:0005484 - SNAP receptor activity
GO:0005802 - trans-Golgi network
GO:0005829 - cytosol
GO:0005886 - plasma membrane
GO:0006612 - protein targeting to membrane

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

1492011

VA721
Vesicle-associated membrane protein 721

3

20

Small-scale

0.853

High

1421788

KEULE
SNARE-interacting protein KEULE

2

20

Small-scale

0.804

High

1456396

SYP71
Syntaxin-71

1

5

High-throughput

0.691

High

1457226

SY122
Syntaxin-122

1

18

High-throughput

0.691

High

1375204

SYP61
Syntaxin-61

1

20

Small-scale

0.680

High

1456079

SNP33
SNAP25 homologous protein SNAP33

3

20

Small-scale

0.676

High

1020204

KAT3
Potassium channel KAT3

2

2

Small-scale

0.629

High

866336

VA722
Vesicle-associated membrane protein 722

1

20

Small-scale

0.618

High

1020365

PIP27
Aquaporin PIP2-7

1

16

Small-scale

0.552

High

1355255

NIP11
Aquaporin NIP1-1

1

17

High-throughput

0.541

High

99716

F4HWC3
Calponin-like domain protein

1

6

High-throughput

0.536

High

146506

JAL34
Jacalin-related lectin 34

1

6

High-throughput

0.536

High

146964

NOP5A
Probable nucleolar protein 5-1

1

10

High-throughput

0.536

High

306769

JAL20
Jacalin-related lectin 20

1

6

High-throughput

0.536

High

307764

RL281
Large ribosomal subunit protein eL28z

1

3

High-throughput

0.536

High

724846

ADT1
ADP,ATP carrier protein 1, mitochondrial

1

2

High-throughput

0.536

High

886224

RS30
Small ribosomal subunit protein eS30z/eS30y/eS30x

1

1

High-throughput

0.536

High

886239

RL4B
Large ribosomal subunit protein uL4y

1

2

High-throughput

0.536

High

1192366

IF2B
Eukaryotic translation initiation factor 2 subunit beta

1

4

High-throughput

0.536

High

1299003

Q8GUN1
AT4G31340 protein

1

4

High-throughput

0.536

High

1318532

SH3P3
SH3 domain-containing protein 3

1

8

High-throughput

0.536

High

1319546

RL51
Large ribosomal subunit protein uL18z

1

3

High-throughput

0.536

High

1342074

UNC13
Protein unc-13 homolog

1

1

High-throughput

0.536

High

1372826

RL171
Large ribosomal subunit protein uL22z

1

8

High-throughput

0.536

High

1373490

Q93Z83
AT5g26280/T19G15_130

1

2

High-throughput

0.536

High

1375632

FBRL2
rRNA 2'-O-methyltransferase fibrillarin 2

1

4

High-throughput

0.536

High

1423522

RS3A1
Small ribosomal subunit protein eS1z

1

2

High-throughput

0.536

High

1443654

RS91
Small ribosomal subunit protein uS4z

1

5

High-throughput

0.536

High

1444083

RL282
Large ribosomal subunit protein eL28y

1

3

High-throughput

0.536

High

1444101

EXPB3
Expansin-B3

1

4

High-throughput

0.536

High

1456406

RL351
Large ribosomal subunit protein uL29z

1

4

High-throughput

0.536

High

1456450

Q9SGT7
Nucleolar protein 56

1

10

High-throughput

0.536

High

1457018

HIR3
Hypersensitive-induced response protein 3

1

3

High-throughput

0.536

High

1457054

RS241
Small ribosomal subunit protein eS24z

1

9

High-throughput

0.536

High

1457116

ENPL
Endoplasmin homolog

1

7

High-throughput

0.536

High

1492012

ANXD4
Annexin D4

1

3

High-throughput

0.536

High

837275

RS143
Small ribosomal subunit protein uS11x

1

0

High-throughput

0.513

High

898316

RL121
Large ribosomal subunit protein uL11z

1

0

High-throughput

0.513

High

1020100

CDC5L
Cell division cycle 5-like protein

1

0

High-throughput

0.513

High

100242

F4I420
Eukaryotic translation initiation factor 5B

1

3

High-throughput

0.489

High

103375

DEKP4
DEK domain-containing chromatin-associated protein 4

1

2

High-throughput

0.489

High

307775

O82222
Expressed protein

1

5

High-throughput

0.489

High

856519

RL81
Large ribosomal subunit protein uL2z

1

7

High-throughput

0.489

High

1168791

Q1JPN7
At2g31800

1

6

High-throughput

0.489

High

1234074

Q6IDB4
At4g00670

1

1

High-throughput

0.489

High

1318607

TOL9
TOM1-like protein 9

1

12

High-throughput

0.489

High

1319661

RS242
Small ribosomal subunit protein eS24y

1

9

High-throughput

0.489

High

1354541

VAP42
Vesicle-associated protein 4-2

1

20

High-throughput

0.489

High

1372819

RS41
Small ribosomal subunit protein eS4z

1

6

High-throughput

0.489

High

1375724

Q94AK8
Ribosome assembly factor mrt4

1

6

High-throughput

0.489

High

1421516

RH5
DEAD-box ATP-dependent RNA helicase 5

1

2

High-throughput

0.489

High

1424568

FBRL1
rRNA 2'-O-methyltransferase fibrillarin 1

1

4

High-throughput

0.489

High

1424935

NOP2A
25S rRNA

1

1

High-throughput

0.489

High

1441439

Q9LHL8
Calcium load-activated calcium channel

1

5

High-throughput

0.489

High

1443085

Q9LTX7
Gb|AAF56406.1

1

1

High-throughput

0.489

High

1443176

RPF2
Ribosome production factor 2 homolog

1

1

High-throughput

0.489

High

1443928

RL354
Large ribosomal subunit protein uL29w

1

4

High-throughput

0.489

High

1444814

NOP5B
Probable nucleolar protein 5-2

1

10

High-throughput

0.489

High

1456666

WDL4
Protein WVD2-like 4

1

3

High-throughput

0.489

High

1457096

RL312
Large ribosomal subunit protein eL31y

1

4

High-throughput

0.489

High

99556

F4HS68
Tetratricopeptide repeat

1

12

High-throughput

0.479

High

1320269

ATL31
E3 ubiquitin-protein ligase ATL31

1

5

Small-scale

0.479

High

1342243

ATL6
E3 ubiquitin-protein ligase ATL6

1

6

Small-scale

0.479

High

1299828

PDLP1
Plasmodesmata-located protein 1

1

0

Small-scale

0.458

High

1376613

CESA6
Cellulose synthase A catalytic subunit 6 [UDP-forming]

1

0

Small-scale

0.458

High

102646

NTL9
Protein NTM1-like 9

1

1

High-throughput

0.457

High

102868

PHOX4
Protein PHOX4

1

5

High-throughput

0.407

High

1354984

NAA15
N-terminal acetyltransferase A complex auxiliary subunit NAA15

1

12

High-throughput

0.407

High

146589

NUP35
Nuclear pore complex protein NUP35

1

0

High-throughput

0.282

High

1444644

Q9M840
Ankyrin repeat family protein

1

0

High-throughput

0.279

Low


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Last updated: 11Aug2025