HbsAg 22nm? or 42nm? - USMLE Forums
USMLE Forums Logo
USMLE Forums         Your Reliable USMLE Online Community     Members     Posts
Home
USMLE Articles
USMLE News
USMLE Polls
USMLE Books
USMLE Apps
Go Back   USMLE Forums > USMLE Step 1 Forum

USMLE Step 1 Forum USMLE Step 1 Discussion Forum: Let's talk about anything related to USMLE Step 1 exam


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 12-05-2014
USMLE Forums Scout
 
Steps History: Not yet
Posts: 11
Threads: 7
Thanked 0 Times in 0 Posts
Reputation: 10
Default HbsAg 22nm? or 42nm?

A question from U world states that the HBsAg is a noninfective glycoprotein that forms spherules and tubules 22nm in diameter...
but in FA 14 pag 166 there is a picture of the HBV and shows that the diameter is 42 nm... which on is correct???
Reply With Quote Quick reply to this message



  #2  
Old 02-12-2015
USMLE Forums Scout
 
Steps History: 1+CK+CS
Posts: 15
Threads: 7
Thanked 4 Times in 2 Posts
Reputation: 14
Default

Quote:
Originally Posted by paraguayman View Post
A question from U world states that the HBsAg is a noninfective glycoprotein that forms spherules and tubules 22nm in diameter...
but in FA 14 pag 166 there is a picture of the HBV and shows that the diameter is 42 nm... which on is correct???
Was looking for the same info, but if you read the explanation in UW, it says that HBsAg is a glycoprotein, than is secreted from hepatocytes, non infectious that form spheres of 22nm. That is DIFFERENT from the size of the WHOLE virus that is 42nm coat(or envelope) +core+ the DNA structure with it's DNA polymerase.

Didn't do much research, have nothing to backup my answer besides UW and FA.

Good Luck
Reply With Quote Quick reply to this message



Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the USMLE Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Medical School
Choose "---" if you don't want to tell. AMG for US & Canadian medical schools. IMG for all other medical schools.
USMLE Steps History
What steps finished! Example: 1+CK+CS+3 = Passed Step 1, Step 2 CK, Step 2 CS, and Step 3.

Choose "---" if you don't want to tell.

Favorite USMLE Books
What USMLE books you really think are useful. Leave blank if you don't want to tell.
Location
Where you live. Leave blank if you don't want to tell.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


RSS Feed
Find Us on Facebook
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

USMLE® & other trade marks belong to their respective owners, read full disclaimer
USMLE Forums created under Creative Commons 3.0 License. (2009-2014)