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5/12/2018 Sintesis Hemoglobin - slidepdf.com
http://slidepdf.com/reader/full/sintesis-hemoglobin-55a4d3829c965 1/5
SINTESIS HEMOGLOBIN
5/12/2018 Sintesis Hemoglobin - slidepdf.com
http://slidepdf.com/reader/full/sintesis-hemoglobin-55a4d3829c965 2/5
Hemoglobiny Hb sangat penting bagi tubuh manusia
y Hb terkandung di dalam RBCs dimana berfungsi
sebagai pengangkut O2y O2 diikat oleh Fe yang terkandung di dalam Heme.
y 1 Hb dapat mengikat 4 molekul O2 karena dalam 1 Hbterkandung 4 sub unit Hb
y Terdapat berbagai jenis Hb : HbF, HbA, HbA2, dll
5/12/2018 Sintesis Hemoglobin - slidepdf.com
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5/12/2018 Sintesis Hemoglobin - slidepdf.com
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Sintesis Hemoglobin Glycine + Succinyl-CoA -> -aminolevulinic acid +
CO2 + CoASH
2 -aminolevulinic acid -> porphobilinogen + 2H2O
4 Porphobilinogen -> Hydroxymethylbilane +4NH4+
Hydroxymethylbilane -> Uroporphyrinogen III +H2O
Uroporphyrinogen III -> Coproporphyrinogen III +4CO2
5/12/2018 Sintesis Hemoglobin - slidepdf.com
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SINTESIS HEMOGLOBIN (CON¶T)
´ Coproporphyrinogen III + O2 -> Protoporphyrinogen IX +2CO2
´ Protoporphyrinogen IX + 3/2O2
-> Protoporphyrin IX +3H2O
´ Protoporphyrin IX + Fe2+ -> Heme
´ Heme + Globin -> Hemoglobin