The name of this superfamily has been modified since the most recent official CATH+ release (v4_4_0). At the point of the last release, this superfamily was named:

"
Antifreeze-like/N-acetylneuraminic acid synthase C-terminal domain
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 2: Sialic acid synthase

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 3 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
N-acylneuraminate cytidylyltransferase activity GO:0008781
Catalysis of the reaction: CTP + N-acylneuraminate = diphosphate + CMP-N-acylneuraminate.
2 Q9NR45 (/NAS) Q9NR45 (/NAS)
N-acylneuraminate-9-phosphate synthase activity GO:0047444
Catalysis of the reaction: H2O + phosphoenolpyruvate + N-acyl-D-mannosamine 6-phosphate = phosphate + N-acylneuraminate 9-phosphate.
2 Q9NR45 (/TAS) Q9NR45 (/TAS)
N-acylneuraminate-9-phosphate synthase activity GO:0047444
Catalysis of the reaction: H2O + phosphoenolpyruvate + N-acyl-D-mannosamine 6-phosphate = phosphate + N-acylneuraminate 9-phosphate.
1 Q99J77 (/IDA)

There are 2 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
CMP-N-acetylneuraminate biosynthetic process GO:0006055
The chemical reactions and pathways resulting in the formation of CMP-N-acetylneuraminate, a substance composed of 5-(acetylamino)-3,5-dideoxy-D-glycero-D-galacto-non-3-ulosonic acid in glycosidic linkage with cytidine monophosphate.
2 Q9NR45 (/NAS) Q9NR45 (/NAS)
Embryonic skeletal system development GO:0048706
The process, occurring during the embryonic phase, whose specific outcome is the progression of the skeleton over time, from its formation to the mature structure.
2 F1R1P6 (/IMP) Q6P0K4 (/IMP)

There are 4 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 Q9NR45 (/NAS) Q9NR45 (/NAS)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
2 Q9NR45 (/TAS) Q9NR45 (/TAS)
Extracellular exosome GO:0070062
A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
2 Q9NR45 (/HDA) Q9NR45 (/HDA)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
1 Q99J77 (/IDA)
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