7k0l
From Proteopedia
Human serine palmitoyltransferase complex SPTLC1/SPLTC2/ssSPTa, myriocin-bound
Structural highlights
DiseaseSPTC1_HUMAN Hereditary sensory and autonomic neuropathy type 1;Juvenile amyotrophic lateral sclerosis. The disease is caused by variants affecting the gene represented in this entry. SPTLC1 variants at Ser-331 are responsible for severe hereditary motor and sensory neuropathy (HMSN) forms, whose core features are severe, diffuse muscle wasting and hypotonia, motor and sensory disturbances, foot ulcers, amputations and/or burns, joint hypermobility, cataracts and considerable growth retardation.[1] FunctionSPTC1_HUMAN Serine palmitoyltransferase (SPT) (PubMed:19416851). The heterodimer formed with SPTLC2 or SPTLC3 constitutes the catalytic core (PubMed:19416851). The composition of the serine palmitoyltransferase (SPT) complex determines the substrate preference (PubMed:19416851). The SPTLC1-SPTLC2-SPTSSA complex shows a strong preference for C16-CoA substrate, while the SPTLC1-SPTLC3-SPTSSA isozyme uses both C14-CoA and C16-CoA as substrates, with a slight preference for C14-CoA (PubMed:19416851). The SPTLC1-SPTLC2-SPTSSB complex shows a strong preference for C18-CoA substrate, while the SPTLC1-SPTLC3-SPTSSB isozyme displays an ability to use a broader range of acyl-CoAs, without apparent preference (PubMed:19416851). Required for adipocyte cell viability and metabolic homeostasis (By similarity).[UniProtKB:O35704][2] See AlsoReferences
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Categories: Homo sapiens | Large Structures | Kalathur R | Lee CH | Myasnikov A | Niu Y | Wang Y | Zhang Z | Zhao H
