Table 11

Genes encoding ureohydrolases in the investigated cyanobacterial marine and freshwater cyanobacteria.

Strain
Database entry*
AA
MM (kDa)
pI

Marine species

Prochlorococcus marinus SS 120
Pro1849
303
33.6
6.32
Prochlorococcus marinus str. MIT 9211
P9211_09067
296
32.7
6.45
Prochlorococcus marinus MIT 9312
PMT9312_1779
293
32.6
5.38
Prochlorococcus marinus MIT 9313
PMT2214
304
32.8
5.55
Prochlorococcus marinus MED 4
PMM1686
294
32.6
5.13
Prochlorococcus marinus NATL 2A
PMN2A_1287
299
32.9
5.01
Synechococcus sp. CC 9605
Syncc9605_1082
Syncc9605_2591
396
291
43.8
31.3
5.03
4.91
Synechococcus sp. CC 9902
Syncc9902_2230
287
30.8
5.10
Synechococcus sp. WH 8102
SYNW1412
SYNW2422
426
286
46.8
30.4
5.48
4.68
Synechococcus sp. WH 7805
WH7805_06086
WH7805_09974
492
294
53.8
31.5
4.48
4.96
Synechococcus sp. WH 5701
WH5701_03860
WH5701_03684
401
308
44.1
32.6
5.35
4.96
Synechococcus sp. RS 9917
RS9917_06190
286
30.9
5.06
Crocosphaera watsonii WH 8501
n.d.
n.d.
n.d.
n.d.
Trichodesmium erythraeum IMS 101
Tery_3780
303
34.0
4.80

Freshwater species

Synechococcus elongatus sp. PCC 6301
n.d.
n.d.
n.d.
n.d.
Synechococcus elongatus sp. PCC 7942
n.d.
n.d.
n.d.
n.d.
Synechococcus Yellowstone sp. JA-3-3-AB
CYA_0859
301
33.1
5.51
Synechococcus Yellowstone sp. JA-2-3Bα (2–13)
CYB_1744
307
33.7
5.23
Thermosynechococcus elongatus BP-1
n.d.
n.d.
n.d.
n.d.
Synechocystis sp. PCC 6803
Sll1077
Sll0228
390
306
42.9
33.5
5.06
4.90
Gloeobacter violaceus PCC 7421
n.d.
n.d.
n.d.
n.d.
Nostoc sp. PCC 7120
Alr2310
346
38.6
4.69
Nostoc punctiforme PCC 73102
Npun02002114
347
38.5
4.53
Anabaena variabilis ATCC 29413
Ava_0127
346
38.5
4.66

N.d. = not detected. *These ureohydrolases are annotated as arginases, as agmatinases as well as 4-guanidino butyrases. The (+) in Table 3 for A2.1, B1, and E2 refers to an identical gene, because the gene annotation does not distinguish between arginases, agmatinases, and 4-guanidino butyrases. A classification is only possible in a few cases, in which enzymatic activity has been measured or the similarity values are very high to already biochemically well-characterized enzymes (see text for details).

Schriek et al. BMC Genomics 2007 8:437   doi:10.1186/1471-2164-8-437