Summary: CemA family
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CemA family Provide feedback
Members of this family are probable integral membrane proteins. Their molecular function is unknown. CemA proteins are found in the inner envelope membrane of chloroplasts but not in the thylakoid membrane . A cyanobacterial member of this family has been implicated in CO2 transport, but is probably not a CO2 transporter itself . They are predicted to be haem-binding however this has not been proven experimentally .
Katoh A, Lee KS, Fukuzawa H, Ohyama K, Ogawa T; , Proc Natl Acad Sci U S A 1996;93:4006-4010.: cemA homologue essential to CO2 transport in the cyanobacterium Synechocystis PCC6803. PUBMED:8633006 EPMC:8633006
Willey DL, Gray JC; , Plant Mol Biol 1990;15:347-356.: An open reading frame encoding a putative haem-binding polypeptide is cotranscribed with the pea chloroplast gene for apocytochrome f. PUBMED:2103453 EPMC:2103453
External database links
This tab holds annotation information from the InterPro database.
InterPro entry IPR004282Members of this family are probable integral membrane proteins. Their molecular function is unknown. CemA proteins are found in the inner envelope membrane of chloroplasts but not in the thylakoid membrane [PUBMED:8633006]. A cyanobacterial member of this family (proton extrusion protein PcxA) is involved in light-induced Na(+)-dependent proton extrusion and has been implicated in CO2 transport, but is probably not a CO2 transporter itself [PUBMED:8633006].
The mapping between Pfam and Gene Ontology is provided by InterPro. If you use this data please cite InterPro.
|Cellular component||integral to membrane (GO:0016021)|
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Curation and family details
|Seed source:||Pfam-B_1775 (release 6.4)|
|Number in seed:||53|
|Number in full:||734|
|Average length of the domain:||213.40 aa|
|Average identity of full alignment:||50 %|
|Average coverage of the sequence by the domain:||80.88 %|
|HMM build commands:||
build method: hmmbuild -o /dev/null HMM SEED
search method: hmmsearch -Z 23193494 -E 1000 --cpu 4 HMM pfamseq
|Family (HMM) version:||9|
|Download:||download the raw HMM for this family|
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