Definition Prochlorococcus marinus str. MIT 9303, complete genome.
Accession NC_008820
Length 2,682,675

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The map label for this gene is crtB [H]

Identifier: 124024352

GI number: 124024352

Start: 2350914

End: 2351855

Strand: Reverse

Name: crtB [H]

Synonym: P9303_26641

Alternate gene names: 124024352

Gene position: 2351855-2350914 (Counterclockwise)

Preceding gene: 124024353

Following gene: 124024348

Centisome position: 87.67

GC content: 51.38

Gene sequence:

>942_bases
ATGACTCAGATAGCGCCGGATTCGTCGATTATCAGTACTCAGGCTTGCTTGAGTCTTGATGAGGCTTATGAGGCTTGTCG
GAAGGAAACAGCTCAGTGGGCGAAAACCTTCTATCTCGGCACCATGTTGCTTCCTTCGATCAAACGCAGAGCGATTTGGG
CCATCTATGTGTGGTGTCGGCGAACTGATGAGCTGATGGATAGCGCAGAGGCTCAGACGCGTCCTGTTTCAGAATTAGCG
AATCGGCTGGATCAATGGGAAGAACGCACTCGGGCCATGTTCGCTGGCCAGGTGCTGGATGGCCTGGATGCGGTCATGGC
AGACACTCTTGAACGTTTCCCTCAGTCCATACAGCCTTATCTGGACATGATTGAGGGGCAGCGCATGGATCTGAATCAGC
ATCGATACGCCACCTTTCAGCAGTTGGAGCTCTATTGCTATCGAGTGGCAGGCACTGTGGGTTTGATGACCCAGCACGTC
ATGGGTCTTGACCCTGCATACACAACAGCCCCTTGGAGTTCTTCTCCAGAGACATCAGATGCTGCTATTGCTCTGGGAAT
TGCCAATCAACTAACCAACATTCTTCGTGATGTAGGAGAGGACCGTGGCCGTGGCCGTATTTACATTCCCCAGGAAGATC
TCGACCGATTTGGTTATTCAGAAGCTGATTTGATGGCTGGACGTTTGAATAGTGCTTGGAAGGATTTGATGGCTTTCCAA
TTGGAGCGTGCTCGCGAGTGGTTTGCCCGCTCAGAAGCTGGAGTGCGCTGGCTATCTCAAGATGCCCGTTGGCCAGTATG
GGCTTCATTGCGGCTTTATAGAGGGATCCTCGATTCCATCGAACGCTTGGACTATGACGTTTTTAATAATCGGGCGTATG
TGAGTCGCTGGATGAAGTTGGTTGATCTTCCTCTTTCATATCTGATGGCCCAAGCACGCTGA

Upstream 100 bases:

>100_bases
TGCGGTGCTCAGTGGCAAGTTGTGTGCAAACGCCGTGGATAGCTGTGGGGAGAAGTTATCCACGCCCCAGTCTGTTAGCA
AGCCTCTCCAGGCCTGAAGA

Downstream 100 bases:

>100_bases
GGCTGGACAAACAGATTTTGAAAGAGGATTAACGCTTCAGTTCAAACAGTTGTCTTTTGATTGGCGAGGAGATCCTTCAG
TTTGGAAAGTTCTCCAGCCC

Product: squalene and phytoene synthase

Products: NA

Alternate protein names: NA

Number of amino acids: Translated: 313; Mature: 312

Protein sequence:

>313_residues
MTQIAPDSSIISTQACLSLDEAYEACRKETAQWAKTFYLGTMLLPSIKRRAIWAIYVWCRRTDELMDSAEAQTRPVSELA
NRLDQWEERTRAMFAGQVLDGLDAVMADTLERFPQSIQPYLDMIEGQRMDLNQHRYATFQQLELYCYRVAGTVGLMTQHV
MGLDPAYTTAPWSSSPETSDAAIALGIANQLTNILRDVGEDRGRGRIYIPQEDLDRFGYSEADLMAGRLNSAWKDLMAFQ
LERAREWFARSEAGVRWLSQDARWPVWASLRLYRGILDSIERLDYDVFNNRAYVSRWMKLVDLPLSYLMAQAR

Sequences:

>Translated_313_residues
MTQIAPDSSIISTQACLSLDEAYEACRKETAQWAKTFYLGTMLLPSIKRRAIWAIYVWCRRTDELMDSAEAQTRPVSELA
NRLDQWEERTRAMFAGQVLDGLDAVMADTLERFPQSIQPYLDMIEGQRMDLNQHRYATFQQLELYCYRVAGTVGLMTQHV
MGLDPAYTTAPWSSSPETSDAAIALGIANQLTNILRDVGEDRGRGRIYIPQEDLDRFGYSEADLMAGRLNSAWKDLMAFQ
LERAREWFARSEAGVRWLSQDARWPVWASLRLYRGILDSIERLDYDVFNNRAYVSRWMKLVDLPLSYLMAQAR
>Mature_312_residues
TQIAPDSSIISTQACLSLDEAYEACRKETAQWAKTFYLGTMLLPSIKRRAIWAIYVWCRRTDELMDSAEAQTRPVSELAN
RLDQWEERTRAMFAGQVLDGLDAVMADTLERFPQSIQPYLDMIEGQRMDLNQHRYATFQQLELYCYRVAGTVGLMTQHVM
GLDPAYTTAPWSSSPETSDAAIALGIANQLTNILRDVGEDRGRGRIYIPQEDLDRFGYSEADLMAGRLNSAWKDLMAFQL
ERAREWFARSEAGVRWLSQDARWPVWASLRLYRGILDSIERLDYDVFNNRAYVSRWMKLVDLPLSYLMAQAR

Specific function: Catalyzes the reaction from prephytoene diphosphate to phytoene [H]

COG id: COG1562

COG function: function code I; Phytoene/squalene synthetase

Gene ontology:

Cell location: Cytoplasmic

Metaboloic importance: NA

Operon status: Not Known

Operon components: None

Similarity: Belongs to the phytoene/squalene synthase family [H]

Homologues:

None

Paralogues:

None

Copy number: NA

Swissprot (AC and ID): NA

Other databases:

- InterPro:   IPR002060
- InterPro:   IPR019845
- InterPro:   IPR008949 [H]

Pfam domain/function: PF00494 SQS_PSY [H]

EC number: =2.5.1.32 [H]

Molecular weight: Translated: 36057; Mature: 35926

Theoretical pI: Translated: 4.87; Mature: 4.87

Prosite motif: PS01045 SQUALEN_PHYTOEN_SYN_2

Important sites: NA

Signals:

None

Transmembrane regions:

None

Cys/Met content:

1.3 %Cys     (Translated Protein)
4.2 %Met     (Translated Protein)
5.4 %Cys+Met (Translated Protein)
1.3 %Cys     (Mature Protein)
3.8 %Met     (Mature Protein)
5.1 %Cys+Met (Mature Protein)

Secondary structure:

>Translated Secondary Structure
MTQIAPDSSIISTQACLSLDEAYEACRKETAQWAKTFYLGTMLLPSIKRRAIWAIYVWCR
CCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
RTDELMDSAEAQTRPVSELANRLDQWEERTRAMFAGQVLDGLDAVMADTLERFPQSIQPY
HHHHHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
LDMIEGQRMDLNQHRYATFQQLELYCYRVAGTVGLMTQHVMGLDPAYTTAPWSSSPETSD
HHHHCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCCC
AAIALGIANQLTNILRDVGEDRGRGRIYIPQEDLDRFGYSEADLMAGRLNSAWKDLMAFQ
HHHHHHHHHHHHHHHHHHCCCCCCCEEECCHHHHHHCCCCHHHHHHHHHHHHHHHHHHHH
LERAREWFARSEAGVRWLSQDARWPVWASLRLYRGILDSIERLDYDVFNNRAYVSRWMKL
HHHHHHHHHHHHHHHHHHHCCCCCCHHHHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHH
VDLPLSYLMAQAR
HHHHHHHHHHCCC
>Mature Secondary Structure 
TQIAPDSSIISTQACLSLDEAYEACRKETAQWAKTFYLGTMLLPSIKRRAIWAIYVWCR
CCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
RTDELMDSAEAQTRPVSELANRLDQWEERTRAMFAGQVLDGLDAVMADTLERFPQSIQPY
HHHHHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
LDMIEGQRMDLNQHRYATFQQLELYCYRVAGTVGLMTQHVMGLDPAYTTAPWSSSPETSD
HHHHCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCCC
AAIALGIANQLTNILRDVGEDRGRGRIYIPQEDLDRFGYSEADLMAGRLNSAWKDLMAFQ
HHHHHHHHHHHHHHHHHHCCCCCCCEEECCHHHHHHCCCCHHHHHHHHHHHHHHHHHHHH
LERAREWFARSEAGVRWLSQDARWPVWASLRLYRGILDSIERLDYDVFNNRAYVSRWMKL
HHHHHHHHHHHHHHHHHHHCCCCCCHHHHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHH
VDLPLSYLMAQAR
HHHHHHHHHHCCC

PDB accession: NA

Resolution: NA

Structure class: Alpha

Cofactors: NA

Metal ions: NA

Kcat value (1/min): NA

Specific activity: NA

Km value (mM): NA

Substrates: NA

Specific reaction: NA

General reaction: NA

Inhibitor: NA

Structure determination priority: 10.0

TargetDB status: NA

Availability: NA

References: 8018713; 8905231 [H]