PAPSS2

Sulfation is a common modification of endogenous (lipids, proteins, and carbohydrates) and exogenous (xenobiotics and drugs) compounds. In mammals, the sulfate source is 3'-phosphoadenosine 5'-phosphosulfate (PAPS), created from ATP and inorganic sulfate. Two different tissue isoforms encoded by different genes synthesize PAPS. This gene encodes one of the two PAPS synthetases. Defects in this gene cause the Pakistani type of spondyloepimetaphyseal dysplasia. Two alternatively spliced transcript variants that encode different isoforms have been described for this gene. [provided by RefSeq]

PAPSS2

Bifunctional enzyme with both ATP sulfurylase and APS kinase activity, which mediates two steps in the sulfate activation pathway. The first step is the transfer of a sulfate group to ATP to yield adenosine 5'-phosphosulfate (APS), and the second step is the transfer of a phosphate group from ATP to APS yielding 3'-phosphoadenylylsulfate/PAPS, the activated sulfate donor used by sulfotransferases (PubMed:19474428, PubMed:11773860, PubMed:23824674, PubMed:25594860).
In mammals, PAPS is the sole source of sulfate while APS appears to only be an intermediate in the sulfate-activation pathway (PubMed:19474428, PubMed:11773860, PubMed:23824674, PubMed:25594860).
Plays indirectly an important role in skeletogenesis during postnatal growth (PubMed:9771708).

3'-phosphoadenosine 5'-phosphosulfate biosynthetic processManual Assertion Based On ExperimentIMP:UniProtKB
Blood coagulationIEA:Ensembl
Bone developmentIEA:Ensembl
Hormone metabolic processManual Assertion Based On ExperimentIMP:UniProtKB
Sulfate assimilationManual Assertion Based On ExperimentIMP:UniProtKB

Cytosol

Brachyolmia type 4 with mild epiphyseal and metaphyseal changes (BCYM4):
A form of brachyolmia, a clinically and genetically heterogeneous skeletal dysplasia primarily affecting the spine and characterized by a short trunk, short stature, and platyspondyly. BCYM4 is an autosomal recessive form with mild epiphyseal and metaphyseal changes. Clinical features include short stature evidenced at birth, short and bowed lower limbs, mild brachydactyly, kyphoscoliosis, abnormal gait, enlarged knee joints. Some BCYM4 patients may manifest premature pubarche and hyperandrogenism associated with skeletal dysplasia and short stature.