Protein: SIGA
RNA polymerase sigma factor SigA

Gene: SIGA
Organism: Synechocystis sp. PCC 6803 substr. Kazusa
Interactions: 44
UniProt ID: P74565

Gene Ontology (top 5):
GO:0003677 - DNA binding
GO:0005737 - cytoplasm
GO:0006352 - DNA-templated transcription initiation
GO:0016987 - sigma factor activity

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

1001984

P73431
RNA polymerase sigma-E factor

1

1

High-throughput

0.590

High

1002275

P73666
RNA polymerase sigma factor

1

8

High-throughput

0.590

High

1003052

SIGA
RNA polymerase sigma factor SigA

1

8

High-throughput

0.590

High

1003054

P74595
RNA polymerase sigma-37

1

8

High-throughput

0.590

High

1003059

RPOB
DNA-directed RNA polymerase subunit beta

1

12

High-throughput

0.590

High

1003069

RPSC
Probable RNA polymerase sigma-C factor

1

8

High-throughput

0.590

High

1001883

P73364
AraC subfamily

1

1

High-throughput

0.528

High

1003055

P74608
Slr1575 protein

1

1

High-throughput

0.528

High

1002030

P73465
ATP-dependent DNA helicase

1

2

High-throughput

0.457

High

1000708

RNE
Ribonuclease E

1

0

High-throughput

0.438

High

1001549

ARGD
Acetylornithine aminotransferase

1

0

High-throughput

0.438

High

1002639

COAX
Type III pantothenate kinase

1

0

High-throughput

0.438

High

1002849

P74317
ABC transporter

1

0

High-throughput

0.438

High

1003065

SYGA
Glycine--tRNA ligase alpha subunit

1

0

High-throughput

0.438

High

1001338

P73020
magnesium chelatase

1

1

High-throughput

0.417

High

1001918

P73378
Sll1965 protein

1

1

High-throughput

0.417

High

1002327

P73713
Sll1687 protein

1

2

High-throughput

0.417

High

1002692

DER
GTPase Der

1

3

High-throughput

0.417

High

1003053

P74585
Slr0668 protein

1

1

High-throughput

0.417

High

1003064

Q55693
histidine kinase

1

2

High-throughput

0.417

High

1003067

Q55870
Slr0626 protein

1

1

High-throughput

0.417

High

687024

ATPE
ATP synthase epsilon chain

1

0

High-throughput

0.238

Low

703405

CHLN
Light-independent protochlorophyllide reductase subunit N

1

0

High-throughput

0.238

Low

1000805

P72730
MorR protein

1

0

High-throughput

0.238

Low

1000819

P72742
Slr1098 protein

1

0

High-throughput

0.238

Low

1000915

P72788
Slr1788 protein

1

0

High-throughput

0.238

Low

1001051

P72862
Precorrin methylase

1

0

High-throughput

0.238

Low

1001243

P72974
Sll1516 protein

1

0

High-throughput

0.238

Low

1001594

P73150
CheY subfamily

1

0

High-throughput

0.238

Low

1002002

NARB
Nitrate reductase

1

0

High-throughput

0.238

Low

1002537

P73944
Sll1424 protein

1

0

High-throughput

0.238

Low

1002824

CAPP
Phosphoenolpyruvate carboxylase

1

0

High-throughput

0.238

Low

1002969

P74452
Sll0149 protein

1

0

High-throughput

0.238

Low

1002983

P74454
Sll0147 protein

1

0

High-throughput

0.238

Low

1003056

Y1258
UPF0150 protein ssr1258

1

0

High-throughput

0.238

Low

1003057

P74686
Antiviral protein

1

0

High-throughput

0.238

Low

1003058

P74775
Ssr1407 protein

1

0

High-throughput

0.238

Low

1003060

Q55146
Sll0064 protein

1

0

High-throughput

0.238

Low

1003061

GLNB
Nitrogen regulatory protein P-II

1

0

High-throughput

0.238

Low

1003062

Q55394
Sll0549 protein

1

0

High-throughput

0.238

Low

1003063

Y163
Uncharacterized WD repeat-containing protein sll0163

1

0

High-throughput

0.238

Low

1003066

Q55789
Sll0088 protein

1

0

High-throughput

0.238

Low

1003068

Q55917
Sll0280 protein

1

0

High-throughput

0.238

Low


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Last updated: 11Aug2025