Definition Prochlorococcus marinus str. NATL1A, complete genome.
Accession NC_008819
Length 1,864,731

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The map label for this gene is petB [H]

Identifier: 124025130

GI number: 124025130

Start: 382525

End: 383181

Strand: Direct

Name: petB [H]

Synonym: NATL1_04171

Alternate gene names: 124025130

Gene position: 382525-383181 (Clockwise)

Preceding gene: 124025124

Following gene: 124025131

Centisome position: 20.51

GC content: 40.18

Gene sequence:

>657_bases
ATGGCGAACTCTTCACCGGTTTATGACTGGTTCCAGGAACGTCTTGAGATACAGGACATAGCTGATGATGTCACTTCAAA
ATACGTTCCTCCACATGTCAACATTTTCTATTGTCTTGGTGGCATAACACTGGTTTGTTTTTTGATTCAATTCGCGACTG
GATTCGCGATGACCTTTTACTACAAACCTACAGTAACTGAAGCTTATAGCTCTGTTAGTTATCTGATGACAGATGTGAGT
TTTGGTTGGTTGATTAGATCAGTTCACAGATGGAGTGCCTCAATGATGGTACTCATGCTTATTCTGCATGTATTTCGCGT
TTATTTGACTGGTGGATTTAAAAGACCAAGAGAATTGACATGGATAACTGGAGTGGTTATGGCAGTGATTACAGTTGCTT
TTGGAGTCACAGGATATTCATTGCCTTGGGATCAAGTTGGTTATTGGGCAGTTAAAATTGTCTCTGGAGTCCCAGCAGCT
ATTCCAGTTATTGGAGACTTTATGGTCGAACTTCTTAGAGGTGGTGAGAGCGTTGGGCAGTCAACTTTGACAAGATTTTA
TAGTCTTCACACTTTTGTAATGCCATGGTTGTTGGCAGTTTTTATGTTGATGCATTTTCTAATGATTAGAAAACAAGGAA
TCTCCGGTCCCTTATAA

Upstream 100 bases:

>100_bases
GCTTAGTTAAAGATTTAACAGTTGAGAGCATTGGATTGATCTTTTGCGGCGACCAAGGGGCACATCGAGTAAGATATTTG
AAAGTACAGTGCATAAGTGG

Downstream 100 bases:

>100_bases
TTAAAAAATATTTATCTAAACAACCCTTACCTTAATTCTTTTAAACCTTTCTTAAACCATGTCTACTCTTAAGAAACCTG
ATTTAACCGATACAAAATTA

Product: cytochrome b6

Products: NA

Alternate protein names: NA

Number of amino acids: Translated: 218; Mature: 217

Protein sequence:

>218_residues
MANSSPVYDWFQERLEIQDIADDVTSKYVPPHVNIFYCLGGITLVCFLIQFATGFAMTFYYKPTVTEAYSSVSYLMTDVS
FGWLIRSVHRWSASMMVLMLILHVFRVYLTGGFKRPRELTWITGVVMAVITVAFGVTGYSLPWDQVGYWAVKIVSGVPAA
IPVIGDFMVELLRGGESVGQSTLTRFYSLHTFVMPWLLAVFMLMHFLMIRKQGISGPL

Sequences:

>Translated_218_residues
MANSSPVYDWFQERLEIQDIADDVTSKYVPPHVNIFYCLGGITLVCFLIQFATGFAMTFYYKPTVTEAYSSVSYLMTDVS
FGWLIRSVHRWSASMMVLMLILHVFRVYLTGGFKRPRELTWITGVVMAVITVAFGVTGYSLPWDQVGYWAVKIVSGVPAA
IPVIGDFMVELLRGGESVGQSTLTRFYSLHTFVMPWLLAVFMLMHFLMIRKQGISGPL
>Mature_217_residues
ANSSPVYDWFQERLEIQDIADDVTSKYVPPHVNIFYCLGGITLVCFLIQFATGFAMTFYYKPTVTEAYSSVSYLMTDVSF
GWLIRSVHRWSASMMVLMLILHVFRVYLTGGFKRPRELTWITGVVMAVITVAFGVTGYSLPWDQVGYWAVKIVSGVPAAI
PVIGDFMVELLRGGESVGQSTLTRFYSLHTFVMPWLLAVFMLMHFLMIRKQGISGPL

Specific function: Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions [H]

COG id: COG1290

COG function: function code C; Cytochrome b subunit of the bc complex

Gene ontology:

Cell location: Cellular thylakoid membrane; Multi-pass membrane protein [H]

Metaboloic importance: NA

Operon status: Not Known

Operon components: None

Similarity: Belongs to the cytochrome b family. PetB subfamily [H]

Homologues:

Organism=Homo sapiens, GI251831119, Length=190, Percent_Identity=33.1578947368421, Blast_Score=131, Evalue=5e-31,
Organism=Saccharomyces cerevisiae, GI6226532, Length=189, Percent_Identity=30.6878306878307, Blast_Score=116, Evalue=3e-27,
Organism=Saccharomyces cerevisiae, GI6226529, Length=189, Percent_Identity=30.6878306878307, Blast_Score=114, Evalue=1e-26,
Organism=Saccharomyces cerevisiae, GI6226531, Length=179, Percent_Identity=26.2569832402235, Blast_Score=89, Evalue=6e-19,
Organism=Saccharomyces cerevisiae, GI6226530, Length=144, Percent_Identity=28.4722222222222, Blast_Score=72, Evalue=7e-14,

Paralogues:

None

Copy number: NA

Swissprot (AC and ID): NA

Other databases:

- InterPro:   IPR016175
- InterPro:   IPR005797
- InterPro:   IPR016174 [H]

Pfam domain/function: PF00033 Cytochrom_B_N [H]

EC number: NA

Molecular weight: Translated: 24656; Mature: 24525

Theoretical pI: Translated: 8.20; Mature: 8.20

Prosite motif: PS51002 CYTB_NTER

Important sites: NA

Signals:

None

Transmembrane regions:

None

Cys/Met content:

0.9 %Cys     (Translated Protein)
5.5 %Met     (Translated Protein)
6.4 %Cys+Met (Translated Protein)
0.9 %Cys     (Mature Protein)
5.1 %Met     (Mature Protein)
6.0 %Cys+Met (Mature Protein)

Secondary structure:

>Translated Secondary Structure
MANSSPVYDWFQERLEIQDIADDVTSKYVPPHVNIFYCLGGITLVCFLIQFATGFAMTFY
CCCCCCHHHHHHHHHHHHHHHHHHHHCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHEE
YKPTVTEAYSSVSYLMTDVSFGWLIRSVHRWSASMMVLMLILHVFRVYLTGGFKRPRELT
ECCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCHHHH
WITGVVMAVITVAFGVTGYSLPWDQVGYWAVKIVSGVPAAIPVIGDFMVELLRGGESVGQ
HHHHHHHHHHHHHHCCCCCCCCHHHHHHHHHHHHHCCCHHHHHHHHHHHHHHHCCHHHHH
STLTRFYSLHTFVMPWLLAVFMLMHFLMIRKQGISGPL
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCC
>Mature Secondary Structure 
ANSSPVYDWFQERLEIQDIADDVTSKYVPPHVNIFYCLGGITLVCFLIQFATGFAMTFY
CCCCCHHHHHHHHHHHHHHHHHHHHCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHEE
YKPTVTEAYSSVSYLMTDVSFGWLIRSVHRWSASMMVLMLILHVFRVYLTGGFKRPRELT
ECCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCHHHH
WITGVVMAVITVAFGVTGYSLPWDQVGYWAVKIVSGVPAAIPVIGDFMVELLRGGESVGQ
HHHHHHHHHHHHHHCCCCCCCCHHHHHHHHHHHHHCCCHHHHHHHHHHHHHHHCCHHHHH
STLTRFYSLHTFVMPWLLAVFMLMHFLMIRKQGISGPL
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCC

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: 7.0

TargetDB status: NA

Availability: NA

References: NA